SCIENTIFIC ABSTRACT ROGOVIN, Z.A. - ROGOVIN, Z.A.

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SCIENTIFIC ABSTRACT
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ROGOVIN, Z.A. Eighth IMendeleev Congress. Khim. volok. no.2:82-83 159. (Chemistry, Physical and (Polymers--Congresses) (MIRA 12-9) theoretical--Congresses) 0 5(3),1503) AUTHORS: Pogosoir, Yu. L. SOVI/156-59-2-38/48 TITLEs Investigation of the Composition and Structure of the Products of the Hydrolysis of the Cellulose and of the Poly- condensation of the Glucose Wh-1ch Form Under the Influence of Concentrated HP (Issledovaniye sostava i stroyen-iya produktav gidroliza tsellyulozy i polikondensatsii glyukozy, obrazuyushchikhaya pri deystvii kontsentrirovannoy HF) PERIODICAL: Nauchny-ye doklady vysshey shkoly. Khimiya i khimicheskaya tekhnologiya, 1959, Nr 2.. PP 368-371 (USSR) ccmmwicatian ABSTRACT: This is the 79th from the series "Investigation of the structure and properties of the cellulose and its esters" ("Issiedovaniye stroyeniya. i svoystv tsellyulozy i --kh efirov"). Cotton cellulose was hydxolyzed with concentrated hydrofluorine acid, until a state of equ.1--ibr-ium was obtained. The single fractional distillations were separated with ethanole, and their average degree of polymerization, and al-go the optical torsion-ability in watei(Tablel),were determined with the help of the iodine- and r;upro-value, -2he high optical torsion- ability pointeto predominant cWt-glucoside-bonds. The low-molec- Card 1/2 ulai polysaccharides which are f,>rmed during the hydrolysis of Investigation Df the Compositlon ard Sty-a-:t!ire --,f the SOV.11 56-59-2-38/48 Products of the Hydrolysis of the Cel-1-ulvie and of The Poly::ondensaticn of tho Glaooso Which Form Under the ~f CnnC-entrqtr-,d 'Aff the cell-,Alose through hy!7,,.)f-0:.oride, are thpref~)r;~ already the products of a seac:-idary ^,f the glucose. The fraction ~,f the byo!3es was ~rltylized, the content of frItyle, gre-Lips -,n the tr'Ltyl-?3tp-r was 1-4-e-termined by its J decomposit-ion wit-lb. cone-entrate-4 sulphuric acid -ind b~, the de- terminati - The results .)n of tine inrlii,~atc-d that 1.6- a- 1:-~nds are Dr~idominazritly con- tained i~.~ the byos?s-fT-a--)tior-. This s z-xplaiined by, the higher reastion abiliby of the p-r-;m-a.--ry al-7oholgroups. There are 2 -.a-les and 5 h-i-h are Soviet. referc-nCLas,, 4 -~f w 1 PRESEInED BY: Kafedra iskustvenncgo -v-r,-L-okra Moskovskogn t9katillnogo instituta (Chair for Synthetic Fibres Molscow Textile Institute) SUBMITTED: January 12, '191:9 Card 2/2 aT reo r T tllc -eo r O~ sti ste- r1l taloill t O'JY-O ,-.Os .OS t eT 06 14 O_,alj.,je Tac tCC.Ge VLO SO 0.1e,86 IT .5 c tja resl 'at iJ ~O -'s ;,il- ,ae t Ty~e Of~e ,"T i1'[ es. I ao5t 6T5 ef~a f~ tyl- ~?) - Olt 1:0 ,le tyle ar e VL t 0 1 't~eT 'al 0 the re - -t a f~ j:OT T '20 e5 r a V s ) 0~1 t j,' e e OTta-fLt r 0 tjje o .-,je Ol 39 'b tyke v OvLt 0 4,,.,L C%tojl bTev eT 5 'tig speclo. ,,,',,1e 0 Os te 0jjI V,-eVa' T,,-Ole bi *or" . 5 ae OjxI as eq e. 7,e& O~ 't ea, I ~ ~1) 'L & -),s ~N, n, TT erl Its ..0 all S;~tl Ve t ~; r , tyke e ,r, 'es" t,,1- ~Ts) 0.,Oe-rs jid. tyke 5 r fe - ,J-~a . Of, aT ti vii-i; I ) , t 5ati ? ~j e 5 t eIIO eT ytt TO e0l 0 0.%~ 1) ,ye egav jeIG-, qOlj,9 ye 5? iA5 . 0 0 0 afla, ?I O~ -.ajaT , 0 to t t at cti -oft011 ~.c a art t IIn, Ole Yjea ccor 5v tkie 9 DTO tyte 5 te Tit 0, et O~ . %1l eef~ ,P'L tyte- . Oil 3. .1 ,Mr e ase . .1% 10 et* te - .11 as a06 tyj;~s ~ ~1) , t ;-0 yll (~Jtq eT 0 C06 01-4 . red. 0a tyle 0 an se TV" te t esOl"tl a iT~ c 06116 lie 'Ole 13. fty~e J,), a to 01 I, 1e . e~.,a oj~.JO ~.011 b tract car& At) Irvestigationg of the Thermo.,3tability of the Sterur;- 612 7 re.-ular Polypro,)jlene paration's of' stcreore,-Ular (I) vierc. tested, which were obtained by Poljwurindtion Of (1) in the preoftnee of mixed catalysts Al(C2H 5)3 + TiCl 3 or til(c2if5) f TiCl 11 'Thr~ drita on the chinIze of the specific visco3ity and of the aulubili ty of (I) Firtc-r heatin- on air durina 1-12 hours at dif f'ercnl. Lump, ratores of from 130-18oo are given (Table 1). The noticed increase of thcr amount of fraction being soluble in tolaenp with the tei.iper- atare is said to be due to the decrease in the of (1) without a change of the phase state. As is the case also in the oxidation deco,,.",position of rubber two processes take place parallely - the destruction of the macromolecule and a stractur- ing, of the (P) by the reaction of the formed macroradicals. These processes take place especially intensively in compounds containing a tertiary carbon atom with a CH roup (Ref 5). 3 The thermal treatment (TT) of (I) increases the total amount of the low-molecular soluble fractions (Table 2) so that up to gowV * of (I) car, be transformed kft these fractions by a repeated heatint, (3-4 times). The (TT) influences essentially more the (INI) of the crystalline stereore.-gular (I) than that of the Card 2/3 amorphous fractions -which :.aj be noticed in the change of the card Z/- ,'/ .5 ROGOVIN, Z., prof. Important stage in the work of Soviet chemists. RTO no.5:10-12 147 '5 9. (MIRA 12:8) 1.Zamestitall predsedatelya Vsesoyuznogo khimicheakoge obahchostva im. D.I. Mendeleyeva. (Chemical research) ARKIIANGELISKIY, D.N.; ROGOVIN, Z.A.; KOTTKIII, A.A. Effect ofthe composition of the percipitation baths on the swelling of viscose fiber. Khim.volok. no-5:36-38 '59. (mIRA 13:4) 1. Vaesoyuzn77-nauchno-issledovatellski3r institut iskusstyennogo volokna, (VITIM i Moskovskiy tekstil'ny3r institut OTI). (viscose) (Rayon) SOKOLOVA, V.A.; ROGOVIII, Z.A. Effect ofthe molecular weight and polydispersity of acetyleel- lulose on the conditions of forming and on the properties of acetate fiber. Yhim.volok. no-5:45-47 159. (MIU 13:4) 1. Vsesoyuzny7 nauchno-issledova'ellskiy institut Iskus8tvennogo, volokna (VIIIIV) i Moskovski7 takstilln7y institut (14TH). (Rayon) (Cellulose acetate) 0 POGOSOV, Yu.L.; ROGOVIN, Z.A. kydrolysis of cotton lint by concentrated hydrofluoric acid. Uzb.khim.zhur. no-5:73-79 '59. (MIRA 13:2) 1. Institut kbimit AN UzSSR i Moskovskiy tokstillnyy institut. (Cotton) (Hydrofluoric acid) --i ~00 'C' -11TIMRS Nochaxe ~"- ~L~A~ i~a 1) r "ITL- je,,je F-:0bers 4n of S) p n;;r Y11.4. ABSTRACT- This is the 13, r-eport from the- oories olititl,ld tigat ions in the Field of the lrod,.iction of ~jp- Ip-r-e- of Carboplast Fibers":, No data are I-iveri in oub2 icationr~; crtncerning the pro- duction of pclypropyler3e- 'pPI --i*r--~--rz A.- LMA TIt aly, Becauee of tn e h i gh I jr v I a 3 ou --3 ci e 1 t o f7 p r (- r. -,-! nn, ~-, E, ,vi i'J 6 i f f i C-a 1 t. solubility ~-.n only fe~%. hieh-bolilinz hydro-~7;a:!Iors 2t :~-In be --pun cnly! !,'rom --oncentratet 'IeLI;Ieraturas of abou, 200 " 2) in a thermoplantic stCte, Pro,;eluri, I at 1 14 _. I Y preeent being suacesspulAy develcpel at th~- INT11V (V-se!7oy,-1zny- P. a i, ell n o - is s I a cl o v a t a I * s k i y i -i s tlt -..i t i s k u scn. ~: g o vo kna .jIll-Unior, Sc-;--ntific Pesearch in-stiti.,te_IF -o-l Syrthetin P.1bers). It's disadvantages are the easily inflaMmable solventa and the difficultiez ccnnecte-] with their recuneratli,n, '2he author5 s-neak about th,~ir attempts at in p- thermoplastic etatf--~ They -:;,3nstructe3 an cx;:e.-;.Menta-I opinning rl,,d 1/3 a 1'~Oizve "U~Z'.", ill 3et mach.-ne, whieh c-~nqist3 of -q zz 7 .:,pirming of Polypropylene Fibe~rs In the Chezmo- 13 02 7 Dlastit-. State D' C; 04 / B C', of' c3pjilmneretz, and a devic,--- fo:." ;1raving aa` 11ndin- 1--ig The PP is dolled before being f-Illed, in-Go t,!-.e zoinnin..- n-achine 0 min a 9,~ in mole.- t 1,50 16()' t On th-*L!14 dnorva y r, : I , - cular -a-3-ight and thermo-Qxidat-ve finer-- "T-bles 1, 2). The oxidative decay might be priwiven+ad bly th-_ adds.tion ~,f an an entioxidant tort tributyl-phnno'.. or b,7 heatl!q; in - t Th-"3 rhieolo:zical C r; e 9 5 p h t hi e h j "'I - Vi S - PP is beinz pressed througb the spinnarot are irthf?r n e e d o L :U1 tr e S t i a on f': (:,:3 -m zf~y, b Q rE~ _r. by plas - a in v ~_, i t i g p t -i n s -,i e r o a r r e "j t t t h c t n f I " 1 ef f,-?c t ~~rodulcqd by rubber like volymers such as zoIy_f,-.obuty].en- - Tht_- in f luence exerted by the amor-phou.3 fractIon i-,ao investigatc-d on t7o kinds of 1_1 ~ One -,iaa p r on d' i a c e I b y r. e a n !3 o, f a c a t ~ 1 1%, z! t T i C I + ~~ I i ,;' TI 4 " ~'2_ 5)3 at "he Imititut oinL-~za (Iv_s~i-tuta-frX at tht- 1~Iihorator-;.r of ',I. A, rentse-I the other'by mueart.3 -,f TiCI,+ Al(C 1~1 %2 - --- by 11 L I I L S~ EtI13 nvt!~ frac- ~-_jrd 2,11, and tK, Tiinsz~:er ;',*_J h a ~17L c. r p h Spinning of Poly r,.~opyler.,_, in the '_h-_rmr 000/06/0051/027 plastic Stat,: DO ;110- t ion 1~ becones too fit_' .-I . The bes t re -;iul.~. s were obtained by means of a 5 -- IC~~ amorphous fracti_-n; The ef fect produced by an radd3.tion of 15-7,' polyisobatylene is shown In tables 3 and 4. Sp2nnInF of PP requires considerable dravingg and spinnerets with a large opening (0.,25 -- 1~,O mm~, The-rate of thread formatIon is tuven ace-Ording, to the quantity of the ad- ded plastifier and accordim.- t-- the weight of the PF as being AO m/ m2-i,, V:. Var3hav.9,_iy took part in the experiments,. There are i figur-; -If t_ables, and 6 references, 5 of which are 9.)-viet-, ASSOCIATION~ NTI tekstillnyy ins-c-_ttut (bloscow Textile lns~ltute) Card 3/3 AUTHORS -u s Y T IT il'-S tI of "1 0 lj,a e tvl c e I I u lo oe tn the AC,',,~ia PERIODICAL K h Ji unich askiy vo I r"-n a, 19"C~ 0 U S SR AB3TRACT, 4 Card ng Of -r .4celate f~-berO direct flOal he ac,34ylaling The svinnil , I G :1. v . i. t .jXtUr4F. W0111d MeL7 61 coneilerabl-,~ .91tOrtezling and si-mr"LificatiOn of Production, Tho conditicn2 f,,-,,r the rea:L-ization This meth- od are , I The pToduction 0-4. a stat16 3'.:~luticn of t~rla~;etYl- cellulo3a in the ac-ety'.1-a-rjing mixvure , 2) Detel:-Mlnation of I.- lie s t su Itsble spi nn !.ng meth:--d and of the c--m-7DOS -ition. of the srlllllin~- batll:, a method fo-- Zhe re- Een-,ratlon of tbe zsolvent T---o in 13 n-ot by ii car-7-ied thi? ur th C, r --,) ~:. c. a t s u c ce. .1 1 -'r ~l J c r a:i d -w,~ -a K a c ii. 's,:)!ium sce-taf--)- h 1- n r 1 C, r" I i C, wl ~ f.c, h a. r e ij s ea .1 -c aE a il :1 a 11 a 2 4 The ProductiQn of- Tr`L4~-,,ala.~-a-fibero Frorm Solutions of in the Ac Fit 1 - Su-h nH,-Jtr-Ai.,-,Q(j Solution-. at 10-1-~? V11.0-in-4rskiv Chemical Fartovj~ 1,-, t'he e o t It a ro 1 elax (11 "Air 5 0 d a no charg o~ t~i,: TAC and thj4r fcllo"f-riv -Omposl t I o r, vf a ~3 inveo t Igat ed as spin-s*lution T.':~C 22!~,~.. me tbylsne n, re- r i d e'i%~, aqcat,~c acid 2A"If" ~Iater 1 quires herme-11,,,ally closing of the spinninz- machinsa bocaviae of tlls acetic acid vapors fcrmed, The authore point out that- ' if .1 - in -: has a'ready been done ~Ii other- ~.,ouiitrjr-a dur'nE the t spinning .%-f from soluti.ciis izt tox,'.-- d Ine th,,,-',- f orm!rami do -, Aa , however, no rift ta a-e ~~.,~iaiiabl e only expe- ~; menta with -,-it opinnini.-, were Lar-ziod Azj methy- lene J.s not a 'oluble in water, watnz co-,11(d nA be used fig pr-'c' pitant-;~ 1.1he authcrs invest'gated by L the influ--,n~,E ex6rt- ui,jan,~3 of n--e-viene g.3-1coL, Tablo I * nz)oaili.on of th.:I bath upor. the meohani-- d b,,r c oi- (- () ;i pu 1 Card 2,1,1 ;n the ~J "t. tem- n'~,--n, .,-n 07 s t h KONKIN, A.A.; ROGOVIII, Z.A. Rol 0 molecular Interaction in the hydrolysis of polyeaccha- rides in a hatorogennous medium. Vysolr-om.sood. I no.2:177-181 F f59. (MIRA 12:10) 1. Vsesoyuzryv nauchno-issledovatel'skiy Inatitut iskusHtvennogo volokna. (Polysaccharides) (Hydrolysia) GIL114kN. I.S.; ROGOVIN, Z.A. Osmonatric determination at elevated temperatures. AP '59. of the molemlar weight of polymers Vysokom.soed, 1 no.4:619-622 (MIRh 12:9) 1. Mookovskly teicstillrqv. institut. (Poly,mers) (Koiecular yelghts) SUN'-TUA [Sun-Tlung]; DrJWITSKAYA, V.A.; ROGOVIN, Z.A. Synthesis of new coll4lose derivatives and other polysaccha- rides. Part 2: Synthesis of amino acid amides of alginic acid and carbox7mothylcellulose via amino acids. Vyaokom.soed. I no.8:1178-1181 Ag 159* (MIRA 13:2) 1. 14oskovskiy tekstlllrjy7 inatitut. (AWnic &aid) (Cellulose) (Amides) SUI TUN; DLMF.VITSKhYA, V.A.; RMYIN. Z.A. Synthesis of new derivatives of cellulose and other polyeaccharides. Part 3: '5ynthesis of a graft copol7mer of carboxymethyleellulose and polvenanthamide. Vysokom.nood. 1 no.11:1625-1629 N 59. OIRA 13:5) 1. Moskovskir tok-stillny7 Anstitut. (Hetptanamide) (Cellaose) (Pol7mers) ROGOVIN, Z.A.; U ZIRJII-ZHUY Synthesis of new derivatives of cellulose and other polysaccharides. Part 4: Synthesis of graft copolymers of carboxymethy-lcellulose and polycaprolactam. V7sokozo.soed. 1 no.11:163o-1633 N '59. (MIRA 13:5) 1. Moskovski3r tekstillnyy institut. (Cellulose) (Hexamethylenimine) 50) SOV/63-4-2-35/39 AUTHORS:. Rogovin, Z.A., Vladimirova, T.V. TITLE: The Synthesis of the Mixed Nitric Nitrophenyl, Ester of Cellulose PERIODICAL: Khimicheskaya nauka i promyshlennost', 1959, Vol 4, Nr 2, pp 284-285 (USSR) ABSTRACT: New derivatives of cellulose may be produced by utilizing the phenyl, groups contained in the macromolecule of cellulose. The nitration of the cellulose phenyl ester is carried out by a mixture of nitric and phosphoric acid and phosphoric anhydride. The formed mixed ester dis- solves in the nitration mixture. All free hydroxyl groups may be esterified by changing the esterification conditions. At relatively low temperatures only two nitro-groups may be introduced into the phenyl nucleus. The phenyl ester is resistant to diluted mineral acids at normal and raised temperatures and to 2 n-solution of NaOH at raised temperature. Card 1/2 There is 1 table and 1 Soviet reference. SOV/63-4-2-35/39 The Synthesis of the Mixed Nitric Nitrophenyl Ester of Cellulose ASSOCIATION: Moskovskiy tekstillnyy institut (Moscow Textile Institute) SUBMITTED: October 6, 1958 0 Card 2/2 50) SOV/63-11-2-37/39 AUTHORS: Rogovin, Z.A., Vladimirova, T.V. TITLE: The Preparation of Phenyl Ester of Cellulose With a Higher Degree of Substitution PERIODICAL: Khimicheskaya nauka i promyshlennost', 1959, voi 4, Nr 2, p 286 (USSR) ABSTRACT: A higher degree of substitution is obtained by phenylation of not only the primary but also of the secondary alcohol groups.. The phenyl- cellulose was tosylated by a solution of n-toluene-sulfo-chloride in pyridine which produced a mixed phenyl-tosyl ester. Additional phenyl- ation by a solution of sodium phenolate in phenol did not substitute all tosyl groups. It has been shown, however, that not only primary but also secondary hydroxyl groups may be phenylated. Ditosylcellulose dis- solves in pyridine, acetone, cyclohexanone, chloroform, etc. Card 1/2 There are 2 references, 1 ofwhich is Soviet and 1 German. SOV/63-4-2-37/39 The Preparation of Phenyl Ester of Cellulose With a Higher Degree of Substitution ASSOCIATION: Moskovskiy tekstiltnyy institut (Moscow Textile Institute) SUBMITTED: October 6, 1958 Card 2/2 C, 50) AVr%M: Mosile,-itly, U.N.. Coolidato, of 54L,nces, Vinegar, G.G. T=Ut 341antlfa~raetm_. col Confare=oas and a 3-InAr an tne Pruluctzm and F~ommiins or Chovalcal Plbm PWI0DICALx Kka"onewwa M." I pr-Wahlonow, 1959. 701 4. Or -3. pp 398-401 (=R) A19MACTs In Movember-Dea-bar 190>8 .he A"-Ucdm Scilentific-'r-haimal Cmxf*mme on Problems of W2. Application of Zamical Fiber. In tk~ Textile, k_~Z @&A& and Haboriashry lnduxtry -~k. plan. with the particip.ti.. of the VKW Lamni M".I.Y-& (M-1 -U:a= ck-..d..l sool.ty 1-ni pland.1.7-) It WMI attended by 250 M;We3aAZatLv~S of p1hots and aciontiflo &MALtutes &-A solontlata rroes Cnina. khmeary. Poland and C..oh..L- The deputy or trA prooldont Of t~m GWDE of the LWR N.A. vetrov pointei out -ha' rational prooesmIng method& ar* n,eoe.mary. A.U. Volkov pra.1mlys -niadcamkLIM V.Lokm G..koodtvt~ 301.%. XInIa-t_-_,_J= (U ~-j - board of CAMIC.1 More of tkm State Co=Lt-os on ChmiaLry . p In the CUR CoumII of Ministers) pregontmed a paper m the tat* and do- volopmon. of tbo procluction of c.-mmalcal, fibers In the MSRI Frofoaxor card vakly takatt-l-cyy Institut - Vws4ow Textile Inazituto) on %.uWca.L mol-E ~of Profe"" A R Pa-1 (NIIIN) ..thd. of stclyirg -.he P.,- I" rv: Caullla.- or 3.1-., 3 _Ift- Mid (0011mm) on, 'Th. emUzt_-~ of From Synthetic Pit-'; P-at.4.-~r V.Y.. !.,.v (Mo.k.-My ft. totatillm" I:tsti -~t - 004.7w :Gazilo - T-11. IASI. pr=- ow" of nLxLg natural f*bm. wt-= O.Ta. AlWd%ln (OMTK UM) = at.;-. ym~rn from ft- ~L ..... -?Mrg nvr*"2r V,A,,U.~_soo (W-ow Tw~_Ilo lnatituto) on %Ao errict or tlAting S-Aple 7 on 1'. p-portlea, Aa, 0clod (M=Lnskiy ke=011=jy IrmahUAt - K=Infik WOrfit~l YftM Cl-bIM) Cal the "periaze* Of pro"Jail.9 ~,apzm ft~rs In III* plautj Z ", " _tL_ArU!ML (ma-b , =r of ST .1 ~-~ ) - .he P-.b. of d-ISPIA& " Jnt-d..L_4 -A al q=.pieant. T-,w Conference -t.3 U.. lnok- Wortlao" in the dow.lopmen. of ffi*Ient pUning, ...Virld -1 r=.h- Jr4 equipeent. the InaLrfl.lon- .-Ilm~ti= or work &-A the 1.ok or Card 2/6 *qIp*,_m* On D-re-'~r 15-17. '.958. the AJI-Cni,~n. C-f.-. or ilorkam Chlrecdcal j.;_ 15-9530 6 S '17/6 4 - 6 AUTHORS: Professor Rogavin, Z. A., Academician Kargin, V. A. TITLE: Some Scientific and Technical Pt,oblems of' Cellulose Processing PERIODICAL: 10ilmicheskaya nauka i promyshlennost', 195-9, Vol 4, Nr 6, pp 6oo-696 (USSR) ABSTRACT: The authors stress the importance of further studies on cellulose polymers which have been neglected in the USSR during the past years in favor of synthetic polymers. In view of the inexhaustible amounts of cellulose raw materials., it is imperative that more attention be given to these natural resources. In par- ticular, studies should be directed towards: (1) modifi- cation of the characteristics of cellulose; (2) improve- ment of the quality and durability of cellulose miate- rials; (3) development of new, and the improvement of existing, manufacturing methods. Compared with synthetic fibers, cellulose fibers have the foliowinE deficiencies: Card 1/4-1- low resistance to the action of chemical agents and Some Scientific and Technical Problems 77267 1 of Cellulose Processing sov/63-4-6-1/_'37 Card 2/7 microorganisms; lo,,,,er elasticity and abrasion re- sistance; higher thermal conductivity and inflammability. These characteristics can be modified by various methods, such as: introduction of various substituen"l-s into the cellulose macromolecule; introduction of new functional groups (e.g., nitrile and amino groups); obtaining graft copolymers of cellulose and carbon chain or hetero-chain synthetic polymers; processing with flammability-reducing and wrinkle-resistance- imparting agents; treatment with various chemical agents whicth decrease the ordering of the macro- molecule chains and hence increase the elasticity and elongation of the fibers; mixing cellulose fibers with various synthetic fibers during the spinning or weaving process. Some of the above methods are being used industrially; some are still in the experimental or, laboratory stage. High cost and inadequate equipment CD are often limiting factors in the application of certain methods, e.g., partial cyanoethy-lation .,;as reco!-mmended 10 to 12 years ago for strengthening some desirable characteristics of the cellulose fibers, but it or-seri-ed Some Scient-liVic an~-i of' Cellulose Proce3sing Card 3/7 difficulties in industrial application due to t'one high cost of acrylonitrile and to insufficiently -ears of hermetic equipment. Only after se-v~erai .17 additional studies ;%,as a c.ontinuous cyancethy-la-z-fon process developed ,-;hich nrecluded any side reactilons and reduced the expendit4pre of acrylonitri-le. The synthesis of' graft polymers has not yet been solved satisfactorily; the reaction is difficult to regulate and yields a mixture of the initial polymers, graft copolymers, and homopolymers. This mixture can be used directly in the manufacture of some plastics but not in the manufacture of modified fibers; the latter requires a separation of the graft copolymer from the other polymer by means of fractional dissolving. The process requires, therefore, further investigation and develop- ment of a reaction which would preclude formation of the copolymer. The synthesiq of graft cellulose copolymers with carbon chain polymers should be studied further, particularly in order to minimize the dest-ruc- tion oil cellulose by the radicals formed in the decompa- sition of 'he diazo comoounds. One of -Ine autriors Some Scientific and Technical Problems 1,12b7 of Cellulose Processing SO%`/63-4-05-1/3~1 Card 4/7 recently synthesized a modified cellulose containing amino and nitrile groups; this reaction should be developed into an industrially acceptable process. The structure and the strength of natural fibers, such as ramie and flax, and of fortizan-type cellulose fibers (Z. A. Rogovin, Fundamentals of Chemistry and Technology of Chemical Fibers (Osnovy khImii I tekh- nolo ii proizvodstva Ichimicheskikh volokon), Gizlegprom, 1951 can be improved by treatment with anhydrous ethylamine or 80% aqueous solution of ethylamine, con- centrated urea solution, liquid ammonia, and other reagents which increase the elongation of the fibre considerably without reducing its tensile strength. The variant of 'this rrethod suggested by American authors is expensive and uses considerable amounts of ethylamine which mus""- be regenerated. The principle, liowever, seems to be interesting, particularly in con- rection with the nroblem of increasinc- t~ie strenc--n of vi'scose cord fibers which in foreign countrIes has been raised bY 50-70% in the past ~5-7 years. 'Th ere is Some Scientific and ~:Pec,-Mical. Problems 7-7~' 7 of Cellulose Processing a method of nroducinF- ext-ra-s-1---onc- for~lzan Piberz with b7realcing lengti, of 7(j__75 I Kr -lon 6%) llitiits practical application to elongall, L, ~ cord mani_zfacture. These extra-strong fibers were obtained from cellulose triaceta'Ce by stretching the fiber during hydrolysis, that is, at the time when the bonds are being rearranged and new-type b-onds appear in the polymer's macrorriolle-cule. The above principle applied to other, cellulose derivatives (e.9... cellulose xanthate) could yield extra strong fibers with increased elongation. Further studies are recom- mended to increase the life of cellulose fibers, fabrics, plastics, and films, (particularly their abrasion re- sistance and aging resistance) by impre~:rnation wit'n chemicals or by incorporating into the fibers various plasticizers and inhibitors of thermal- oxidation and mechanical b.-eakdown. Increased elast-icity of the macromolecules is tz)bt-ained --fri mixed cellulose esters with irregular structure, such as cellulose acetate- butyrate, or mixed esters of cellulose aith acetic Card 5/7 acid and higher fatt.- acids; the lat-ter esters should Some Scientific arid TechniCal Problems of Cellulose Processing S01,7163-;'-6-1137 J. r-equire no addition of plasticizers. Attention must be given also to the plasticization of cellulose polymers with synthetic polymers, a method used widely in other high-molecular compounds technology, and to quality standardization of "Che cellulose polymer, wnich, should be completely uniform and should contain as little as possible of admixtures or low-molecular fractions. The authors recorimend a switch from batch cooking to continuous cooking, the use of wetting agents to facilitate 'the uniform diffusion of alkalis _nto the fiber, and replacing hypochlorite with other, milder reagents which do not act destructively on the cellulose macromolecule. New processing methods of wood pulp should also be investigated, Particularly the so-called "hydrotropic method" whi-ch consists of treating the pulp with organic reagents at high tem- perature. Since practically all cellulose esters are thermoolastic, particularly acetyl- and ethyl- cellulose, the possibil Jity of tileiT, ext-usion int- Card 6/7 monofilaments and threads (similarly to saran filaments Some Scientific and Technical Problem 77267 of Cellulose Processing sov/6,-4-6-1/37 and polypropylene threads) should be investigated. There are 6 references, I U.S., 1 U.N., 4 Soviet. The U.S. reference is: N. Nelson, Conrad, Text. Res. J., 23, 428 (1953). Card 7/7 SOV/74 -28-7 -3/5 A R H 2 ac---ovin, Z. A. TITL-1: Tray; I'lethod's of -",odificatiori of the FropErties 0"1 CElljlose "N o vy y sfvj~ tsellyuloz e metody iriodifikatsii svoy -'z'RIODICAL: Usockhi "Ehimii, 1959, Vol 23, Nr 7, PP 850 t6 (USSIQ The uodification of cellulose and its esters and the production of material with ney. technically valuable qualities can be carried out by different uethods. According to the author the hil~hest scientific and technical importance falls to the follow- in.,, Processes: a) surface esterification or treatment of cellulose fibers; b) synthesis of block- and vaccinated copoly- mers of cellulose; c) sjithesis of prenarations of cellulose and other polysacch-irides with functional Proups other than the hydra 1 -roun. The best developed methods are those of surface a9 C> - treatment. Irvc-sti,-,ations in the other two fields are in a state of development only. Surface treatment is used for the trans- formation and Lrprovt~-went of the properties of the fibers. In most cases this can be effected by partial substitution of single OH--roups in the macromolecule of cellulose by means 0 'lard 1/4 I of sour or allky-l radicals. In this case, not only amount and Ifew 1,ethods of 11odification of the Properties of SOV/74-28-7-3/5 Cellulose character of the functional groups introduced into the macro- molecule are of importance. Investigations have shoTin that the materials obtained at Une same dearee of substitution differ in their properties due to different conditions of treatment, Further methods of surface treatment are mentioned:a)partial ace- tylation of cellulose fibers (Refs 15-18); b) partial treatment of cellulose fibers with ethyl cyanide (Refs 19 - 41); C) production of incombustible and non-glowing cellulose fibers. 0 Here two imethods are used: First surface impregnation with anti- pyrene atid, secondly, surface esterification of cellulose (Refs 42 - 47); d) production of fast-dyed cellulose fibers. One of the most promisin.- rays is the production of dye directly on the fiber by of an interaction of correspondin.- sem-i- finished products used for t1he synthesis of the dye. A more re- cent inethod is based on the interaction of cella-Lose with water- soluble dyes containing a group reacting at relatively low temperatures with the hydroxyl groups of the cellulose wacro- molecule (Re's ~8-30). In recent years numerous papers were published dealing with the plannin.- and study of trcqtment con- ditions of cellulose, and in particular cotton fiber (Re"s 51- Card 2/4 60). The possibilities to influenc(,- the properties of cellulose N-_w Mlethod.s of Modification of the Pro~,erti~js of SOV/74-28-7-3/5 and its derivatives ari: much greater if nev methods of syn.- thetic polymer chemistry, and in -,,articular the production of block- and vaccinated copol.-Oners, are used. Numerous papers have been published on the production of block copolymers of cellulose or its esters, The folloring tVfo methods are of the -reatest interest; a) Forination of cellulose fniacroradicals and subsequent reaction with the ~!-,acroradicals of other poly- mers exposed to decouposition along with cellulose; b) inter- action of completely substituted cellulose esters with specific functional groups at the ends of 'the macromolecule vith imacro- molecules of other polymers. The synthesis of vaccinated co- polymers of cellulose and its esters can be effected according to t, ree pat' erns: a) by poly izierizat ion of the -aionoimar according to the radical mechanism at the center formed in the macro- molecule of cellulose or its esters: b) by opening and subse- quent polyaerization of strained cycles on account of their interaction with the hydroxyl ;roup of the cellulose macromo- lecule; c) by polycondersation. ~Df the monomer due to the inter- action with the functional group of the macromolecule of Card 3/,; cellulose or another polyoaccharid(* (Refs 55, 62-68, 76, 77)- Ner, Met' 'iod,3 of L11odification of the Properties of SOV/74!-28-7-3/5 Cellulose The synthesis of modified cellulose preparations with functional groups other than the hydroxyl group, which is of -rreat scientific -and techriolo'c"cal i-vior*ance, has as yet not been inveotisated. 17ork Lit the laboratory of the institute is being continued. Hoftever, since the investigations have not yet come to an end, the -.tork- carried on is only briefly mentioned. The results of ;;ork in this fi~-.-ld Yrill be published in future Da-)ers and surve.,,s. There are 6 tables and 77 references, 17 of which are Soviet. ASSOCIATION: ?.oskovs'-.iy tckstillnyy institut (t*oscow Textile Inotitute) ~.aredl TT;J.-j -5-56/75 Ro-ovin, Z. A., Kozlova, Yu. S. SOV/79-29 TITLE: Synthesis of Alkylearbonate Esters of Cellulose and Investigation of Their P;roperties (Sintez alkilugollnykh efirov tsellyulozy i issledovaniye ikh svoystv). 73rdCommunication From the Series "Investigation of the Structure and the Properties of Cellulose and Their Esters" (73-e soobshcheniye iz seri-i "Isaledovaniye stroyeniya i svoystv tsellyulozy i yeye efirov") 'FERIODICAL: Zhurnal obshchey lihimii, 1,059, Vol 29, Hr 5, pp 1667-1671 (USSR) A33MICT: Alkyl carbonic esters were obtained according to the following equation of reaction: C1 Cell. OUR + C~O cell. 00 + NaCl OR OR onra R = CE 3'C2H,5 .1-rnthe3is of !.1kylearbonate Esters of Cellulose and SOV79-29-5-56/75 Ifives tir,,.!~~tion of Their Properties- 7DiA Communication From the Series 117nv~.-sti-,ntion of 'Uhe Structure and the Properties of Cellulose and Their The authors synthesized m--thyl carbonic ester with I'= 38-87 anrl othyl carbonic ester with r= 50-65 at room temperature. The stability offered by these esters to dilute acids and lyes, hot water and temperature increase was investigated. The results obtained by saponification with sodium lire ars given in tables I and 2 (compared with methyl xanthogenate). The acid radical was found to influence considerably the stability of cellulose esters. Also-tbe type of the alk.,,! ester is of importance; ethyl carbonic esters of cellulose, for instance, saponify under the same conditions slower than meth~'71 carbonic esters. The resultant esters vere not affected by hot water. Uethyl-xanthogenate (methyl _dithio- c~~rbon-ic ester of cellulose) offers stronger stability to saponification .-!ith sodium hydroxide. There are 2 tables and 2 Soviet, references. Synthesis of kI!:-!jc-rbfnrite Esters of Cellulos-~ .-.nd -o1rh(-,--,) /-.,5 Im~e7tigntion of TheLr Properties. 73. Conmunic.-?tion Fr:)-;: 111-aveztigation of the Structure and the Properties of Celltilorr-i I-nd Their ."ICCLA-TICII: Moskovskiy tal-stilln,,y in!,titut (i-.,Togco;T Textile rn~iti- tuto April 2.1', 1958 SO"/80-32-4-26/47 AUTHORS: K.,_-nkin, A,A, and Rogovin,,Z,.A. TITLE: The Principal Regularities In the Hydrolysis of Polysaccharldes ~r Homogoneous and Heterogeneous Medla (0srovnyye zakonomernosti gid:.-oliza -oolisakhar-4do-v -r gomogennoy i geterogennoy sredakh) PERIODICAL; Zhurnal prikladroy khimii, 19159, Vc,'L 32, Nr 4, PP 852-857 (USSR) ABSTRAM- The prs5en-r paper repr.-~~sents 'he 73rd cc)mmlinica - 40, from the qeri~s of --nvestigations tnto the structure and prope.-ties of cel_'ulose, and the 12th ccmmunication from t-ne Earies of 4n-esti-at5-ons intc the nrc-cess of hydrolysis of polysaccharides. The authors di.zciuss certain general- retgularitaies in the hydrolysis of pDlysaccharidas in hemogenecus and hetero-c-neous media and cite ~,he data on -the r;crrelati,:,n of hydrolysis rates of polysaccharides, disaccharides and "monozi&is under various conditlons in a table. The conclus4ons drawn by the authors from their own experiments and f-roni literati_,re daTa are as follows~ 1- The acetal bonds of polysaccharides differ insignificantly in resistance io the action of hydrolyzing agents. As far as relative rasistan-~,,e of al~etal Card 1 -7 bonds tc, t-he actiort o~~ az-ds Is concerned, the po_iysa.~:charides can SOV/80-32-4-26/47 The Principal Regularities in the Hydrolysis of Polysaccharides in Homogeneous and Heterogeneous Media be arranged in the following series of decreasing resistance. chitin's ce'Llulose,%galactan>mannan"lami-nL,ri-n~xylar,)amylosei 2. The resistance of acetal bonds with respect to the action of hydrolyzing agents does riot depend, aa a rule, on a degree of polymerization of polysacchari- des; :.I. The hydrolysis rate of polysaccharides in a heterogeneous medium is determined by their physical structure which, in its turn, depends on the peculiarities in the structure and composition of macromolecules. According to the relative rate of hydrolysis in a heterogeneous medium, the polysaccharides can be arranged in the following sequence: galactan,~laminarin7xylan>amylose>mannan7cellulose7 chitin. There is I table and 11 references, 9 of which are Soviet, 1 English Card 2/4 and I Danish, Gr~-, l t i HL ip P. Ell A rig MWE I BOOK EXPLOITATION SGV/4984 International symposium o'ts- macromolecular chemistry. Moscow. 1960. Nathdunarodn" simpo zLum po makromolekul yarnoy khIall SSSR, Moskva, 14-18 Iyunya 1~60 g.; doklady I avtorefe sektalya 111. (InternatiOnal STOslum an MacromratlLular Chemletry Hold in Moscow, June , -18, 1960. Papers and 3uMa lee) Section 111. [Moscow, Izd-vo AN sssR. ig6o] .69 r - 55s000 copies printed. Tech. Zd.~: P. S. Kashins. Sponsoring Agency% The International Union of Pure and Applied Chemistry. Comosimsion an Kaoronolecul&r Chemistry. PURPOSE3 This book is Intend6d for chemists interested In poly- "rization reaction* and the synthesis of high molecular compounds. COVZRAGNS This Is Section III of & sultivolume wor contain- Ing papers on sacronolecular rh-1-7. .~jecica or polymerization reactions, the synthesis Of special-purpose polymers, e.9., ion ex- dbange resin@, semiconductor materials, etc., methods of cat- sayalng polymerization reactions, properties and che=1cal Interactions of high molecular materials, and the effects of various factors on polyzeri=Ation and the dagradatlon or kLgh molecular compounds. No personalities are mentioned. .,!trqrsnoes given follow the articles. and A. S. T1 RueRuaydhacion With and Perchlorovinyl 170 vT63R. V. 22raravlsva, and P. lkaflko 3 3 - FT Va R O.Veth7lition oftarbocnain an fetero- Chain Polyamides 284 Santo I , 'and K. Gal (R=gary). Grafting Methyl Methacr-Ilate unto 017;3 Of FO-17-vTn-Y-1 Alcohol Under the Action or I-Rays 207 Lazar M", R R3da' aid DuL. P &Xllm= (Czecho3lovakia) -~rYlate Onto Polypropylene and Foiy- 214 lorki "' 1. A~, Z.-1--S--.el;xy, and (USSR).- 4 t~ .-rn er.. . . 0 r Carboxyl-ContaInIng Butadiene-Styrene Rubbers With Polyanddes and E-Caprolactax 224 and Taleng Han-ming (USSR). Synthesis ',4Aado, it., and1M. Lazar (Czechoslovakia). The Role ofth~----A _Source or Pree Radicals on Crosalinking in Pol7ethylene v denov 'Al. A T Iu'Or "CI , and B. A. Dogadkin (USSR). boxyl-C-antaining ZutadLene- Styrene Rubbers and Their ?Uxtures With E4aprolactim Under the Action or Qam=3 Radiation 293 !_n_ V. A. Derevitska Sun Tlung, In Z-%, Chang Wel- and-r.-- Gallbra Gallbraykmrl kUSSR Synthesis of New i4-- Cellulose -Derlvat,1~112.~nl'- ether Polydaccharidea 302 -a u' Y and F N Ka ut ki (USSR). Initiation KV -IT Nqgl. Controlla 7nthei~;or 0 S I' ~ Te4a Cellulases With Oxides of Nitrogen 310 N. r7 x1datIo gLlena~llna, j-L--1vap-- IUS3R). ules 321 ti.. . 011dational TraRs n Chains or Cellulose Molec BRsEr41In__-&_A- Ye. A. Penaka7a, and G. 1. volkQya (USSR). Mechanic ochemi cal-!-~WD-rbo i~41rtmn 3aff-RISci cc~olymeriza- tion Duftng the Freezing of Starch Solutions 334 qgm ~mqy-ML-N_ B . khad=fLUty. and U--A,-.jZDv (USV). Modification or ch; P6%M3 or Cellulose by Gr-afting 344 .1 v-, -7:., "Ne,,,, methods of mcdification of cellulose fiber prDlertles." port t6 be submItted at Gordon Resea-rch Conferences - New London, New Hamp on, and re t Meriden, N.H., 1.3 june-2 Sep 60. iall Moscow Textile Institute. ROGOVINq Z.A., red.; ROGAYLINA, A.A., red.;*SHPAKq Ye.G., tekhn.red. [Progress in the cbemistry and tecbnology of polywre; co3lected works] Uspekhi Irbimil I tekhnologii polimeray; aborniko Pod red. Z.A.Rogovina. Moakvap Goa.nauchno-tekbn.izd-vc khim.3.it-c7t 1960. V01.3- 1960. 210 p. (MIRA 14:7) 1. Tsesoyuznoye Ichimicheakoye obshchestvo imerd M.Mendeleymm, (PO,7wrs) AUTHORSs !!2ha eva, S. A., Rogovin, Z. A. 3/183/60/000/01/003/031 B004/BO14 TITLEs Investigation of the Processes of Strengthening and Thermal Relaxation as Well as of Some Properties of the Polypropylene Fiber ~9 PERIODICAL8 KhimicheakJye volokna, 19609 Nr 1, pp 10-12 (USSR) TEXT8 This is the 14th communication about the series of investigations of now fibers with aliphat.1c hydrocarbon chains. The authors studied the additional drawing in a glycerin bath at 130-1400, which is necessary for the production of strong polypropylene fibers. However, they believe that it would be more effective to carry out the drawing process in inert gas or steam. Table I indicates that an increase in drawing from 400 to 700 per cent duplicates the breaking length without a considerable reduction in elongation. The authors studied thermal relaxation in loose fibers and fibers wound on bobbins. Table 2 shows the influence of the heating time. Relaxation at 1000 comes to an end after 30 minutes, and the shrinkage remains constant after this time. Table 3 shows the influence of temperature. Thermooxidative destruction sets in above 1000, so that it is necessary to work in an inert medium. Table 4 contains experimental data on thermal relaxation on bobbins (1000, 1200). An increase in Card 1/2 Investigation of the Processes of Strengthening and 3/183/60/000/01/003/031 Thermal Relaxation as Well as of Some Properties of BO04/B014 the Polypropylene Fiber the breaking length without a change in elongation was observed. Furthermore, the authors studied the stability of the fiber against I&OH, H2soV and HBO 3' Table 5 shows that the polypropylene fiber is as resistant as the chlorin fiber. Ito thermal stability, however, is low, especially if its breaking length and elongation are tested directly at high temperatures (Table 7). The thermal stability of this fiber is intended to be increased by intense irradiation. M. N. Pastushenko assisted in the experiments performed. There are 7 tables and 2 Soviet references. ASSOCIATIOR2 XTI (Moskovskiy tekstillnyy institut - Moscow Textile Institute) Card 2/2 AUTHORSI lonova~, T. V.~ Uzinal R.'V., S/183J60/000/01/010/031 iogilevskiy, Te. X., Rogovin, Z..L B004/BO14 Segalevich, N. A. TITLEs The Effect of the Composition of the Ivivage on the Strength of the Linkage Between Tire Cord 41nd Rubber PERIODICALs KhimicheskUe volokna, 1960, Nr 1, PY 30-31 (USSR) TEXTs This paper is intended to explain the problem as to whether the appli- cation of the avivage to tire cord strengthens the adhesion between the latter and the rubber impregnation, or whether the avivage applied to the cord diffuses through the impregnating film and changes the contact between the latter and the rubber. The experiments were performed with a special viscose monofilament and 14V viscose cord. The fibers were treated with the avivages Nevvol and Avirol, and a simultaneous experiment was conducted without an avivage. The specimens were impregnated with latex albumin, and the strength of linkage of the specimens with SKB rubber was determined from the loosening of fibers under static and repeated compression. Table 1 shows that in the case of both specimens (monofilament and cord) the linkage with the rubber is loosened by avivageg especially in the case of Avirol. Next, the authors studied the diffusion of Avirol prepared by sulfonation of butyl oleate with radioactive Card 112 The Effect of the Composition of the Avivage on the 3/183/60/000/01/010/031 Strength of the Linkage Between Tire Cord and Rubber B004/BO14 sulfuric acid. The accompanying diagram of the measured radioactivity illustrates that Avirol diffuses through the impregnating film (latex albumin or latex resorcinol formaldehyde). There are I figure, 1 table, and 5 references, 3 of which are Soviet. ASSOCIATIONs VNIN (Vaesoyuznyy nauchno-issledovatellskiy institut iskusstvennogo volokna - All-Union Scientific Research Institute for Synthetic Fibers) MISh (Nauchno-isoledovatellskiy institut shinnoy promyshlennosti. - Scientific Research Inatitute of the Tire Industry Card 2/2 J, S/183J60/000/03/03/007 B02O/BO54 112o6,,, AUTHORS: Vechayeva, S. A., Malinakiy, M., Rog~)-'in' Z. TITLE: Investiga 't ion of the Possibility of Increasing Thermal Stabilijy~~cf Polyolefin Fibers by the Action of-Ionizing Radiation PERIODICAL3 volokna, 1960, No- 3, PP- 7-9 TEXT: It is known that the polyolefin fibers hitherto used in the industry have a low thermal stability. These fibers and the products made of them have the following disadvantagest a) Irreversible shrink- ing at increased temperaturesq and b) considerable decrease in strength with increase in temperature. To increase the thermal stability of polymeric materials, mainly fibers, various methods have been used; one of the most efficient methods is the formation of chemical bonds between the macromolecules of the polymer which is, however, rendered difficult by the fact that these polymers do not contain reactive functional groups by which a reticulation could occur. It was the object of the investigation under review, the results of which are briefly outlined, Card 1/3 ~/l 8"60/000/03/03/007 Thermal Stability of Polyolefin Fibers by the B0201/BO54 Action of Ionizing Radiation FigB,~ 3 and 4 show the curves of the change in tettring strength and breaking dilation of irradiated and not irradiated polyethylene fibers at increased temperatures. The results obtained show that the shrinking of polypropylene fiber at increased temperatures is considerably reduced by irradiation with a simultaneous considerable deterioration of the mechanical properties. In the polyethylene fiber, an irradiation under the conditions mentioned reduces the flowing of the fiber at increased temperatures but cannot reduce the losses of strength at such tempera- tures. This publication is the 15th of the series "Inve9tigations in the Field of Production of New Types of Synthetic Fibers". There are 4 figures, 1 table, and 4 references: 3 Soviet and I British. ASSOCIATIONs MTI (Moscow Textile Institute) Card 3/3 FLYPLINA., A.I.; RCGOVIN, Z.A.-, Effect of pigments on the photochemical destruction of cellulose nitrates in lacquer coatings. Lakokras.matA ikh pi-im no.306-37 160. (MIRA 14.4) (Pigments) (Nitrocellulose) POGOSOT, Yu.L.; ROGOVIN, Z.A. PolycondensatIon of glum so in solutions of concentrated IWdro- fluoric acid. Usb. khIm. zhur. nco.3:58-61 160. (MMA 13:10) 1. Institut khImII-AIF UzSSR I Noskovskly tekstillmyy institut. (GlucoseY (Wrofluorte acid) 4 YEROKHINA, V.G.; MOAOZOVA, N-V.; ROGOVIff, Z.A. Development of a method for determining the reactivity of cellu- lose in the process of acetylation. Plast.massy no.8:65-66 16o. (MIRA 13:10) (Cellulose) (Acetylation) .. 4A.-, ROGOVIII, Z.A.; TLADIMIROVA, T.V. Synthesis of new cellulose derivatives and other polysaccharides. Part 5: Synthests of phenyl ethers of cellulose and study of their properties. Vyaokom. soed. 2 no. 3:341-346 Mr 160. (MIRA 13:11) 1. Moskovskiy tekstill W inatitut i Voesoyuznyy zaochnyy energaticheakiy institut. (Cellulose) 0 POLYPOCOV, A.I.; DEREVITSKAYA, V.A.; ~WGOVIN, Z.A. Investigation of the possibility of preparing unsaturated com- pounds of cellulose by the Chugaev reaction. Vyookom. soed. 2 no. 3:386-389 Mr 160. (MIRA 13:11) 1. Moskovskly tekBtilln" institut. (Cellulose) CHZHAH VNI-GAJI [Chang Wei-kang]; ROGOVIN, Z.A. Synthesis of new cellulose derivatives and other polysaccharides. Part 6: Synthesis of cellulose esters and chloroalkaae acids. Vysolcom. soed. 2 no. 3:456-462 mr ,6o. (MIRA 13:11) 1. Moskovskiy tekstillnyy institut. (Cellulose) (Valertic acid) (Heptanoic acid) KOZLOVA, YU.S.; ROGOVIII, Z.,A,.. Synthesis of new derivatives of dellulose and other polysaccharides. Part 8: Synthesis of cellulose dialdehyde dioximes, aud'study of the possibility of their subsequent reduction. Vysokom. so-ed. 2 no.4:614-618 Ap 160. (MIRA 13:11) 1. Moskovskiy tekstilInyy institut. (Cellulose) (Oximes) SUNITUN [Sun Tlung]; LOWITMAYA, V.A.; ROGOVIN, Z.A. SynthesJ~ of new cellulose derivatives and other polyeaccharides. Part 8: Synthesis of cellulose asters of amino acids. Vysokom. soed. 2 no-5:785-790 MY '60. 041U 13:8) 1. Moskovskiy tekstillnyy institut. (Amino acids) (Cellulose) S/199/60/002/010/026/026/XX BO04/BO64 AUTHOR: Rogovin, Z. A. ---moon* TITLE: The Phase State of Cellulose PERIODICAL-. Vysokomolekulyarnyye soyedineniya, 19609 Vol. 2, No. 10, PP- 1588-1592 TEXT: The phase state of cellulose is discussed in this periodical upon a resolution adopted by the Tashkentskaya konferentsiya po khimii i,fiziki tsellyulozy (Tashkent Conference on the Chemistry and Physics of Cellulose). The author of the present paper studies this problem and criticizes papers of V. A. Kargin (Ref. 1) and A. I. Kitaygorodskiy and D. A. Tsvankin (Ref. 2); he is of the opinion that the definitions of the phase of cellulose are not clear. There is no uniform definition of the notion of phase and the crystalline and amorphous polymer, which is a further reason for misunderstandings. On the basis of experimental data, e.g., 1) change of the specific weight and volume of cellulose in recrystal- lization, 2) change of the solution heat of cellulose preparations in recrystallization, the author is of the opinion that phase transformations Card 1/2 The Phase State of Cellulose S119016010021010102610261XX B004/BO64 occur when ground, amorphisized c-ilulose is recrystallized. The phase state of cellulose is, however, no maj(;r problem. The solution of the following problems is of greater importance3 a) modifying the properties of cellulose for the purpose of gaining substances with new propertiesi b) regulation of the structure of cellulose and its derivatives to im- prove its mechanical properties. It is suggested that physicists study the problem of the phase state of cellulose. D. I. Leypunskaya, I. G. Stoyanova, A. L. Zaydes, M. V. Vollkenshteyn, N. V. Mikhaylov, V. I. Sharkov, V. P. Levanova~ E. Z. Faynbergq S. M. Lipatov, D. V. Zharkovskiy, I. L. Zagrevskaya, and V. M. Bukhman are mentioned. There are 12 Tef- erences- 10 Soviet and 2 US. ASSOCIATION: Moskovskiy tekstilinyy institut (Moscow Textile Institute) SUBMITTED: June 27, 1960 Card 2/2 S11 90/60/002/012/002/019 BOI 7/BO55 AUTHORS: Sun' Tun, Derevitskaya, V. A., Rogovin, Z. A. TITLE: Synthesis of New Derivatives of Cellulose and Other Poly- saccharides. IX. Synthesis of Aromatic Amino Acid Esters of Cellulose PERIODICALt Vysokomolekulyarnyye soyedineniya,.1960, Vol. 2, No. 12, PP. 1768-1771 TEXTt The authors developed a method for the synthesis of aromatic amino acid esters of cellulose. The synthesis of these cellulose esters is carried out in two stages*,- i.e. 1) FC 6H702(OH) 31 x+,XClCO N-02 + X0 N Card 1/3 Synthesis of New Derivatives of Cellulose and S/190J60/002/012/002/019 Other Polysaccharides. IX. Synthesis of B017/BO55 Aromatic Amino Acid Esters of Cellulose 0702 (0H)2 NO 2] x+ x C 0 \_~/ 1 0 1 N.HCl 2) C6ff 02(OH)2 OC-0 "2 H 2 so 6H702(OH) OC- 200) renders the cdllulose p-nitro-benfoate soluble in dimethyl formamide, and capable of swelling strongly in Acetone, nitro-benzene, and pyridine. No suitable solvent was found for products esterified to a lower degree. The com- position of the cellulose p-aminobenzoates is given in Table 2. Highly esterified p-aminobenzoic acid esters of cellulose are insoluble in Card 2/3 Synthesis of New Derivatives of Cellulose and S11901601002101210021019 Other Polysaccharides. IX. Synthesis of B017/BO55 Aromatic Amino Acid Esters of Cellulose dimethyl formamide, acetone, nitro-benzene, pyridine, glacial acetic acidl and 20~o aqueous HC1. Cellulose p-aminobenzoates are suitable for the preparation of chemically died cellulosic fibers. There are 2 tables and 2 Soviet references. ASSOCIATION: Moskovskiy tekstillnyy institut (Moscow Textile Institute) SUBMITTED: may ii, 196o Card 3/3 ITLPOCHATL~'!, V.I.; 1~0GICIVI." Z.;,". I-v~,~~; Li -.Ain. o*j,ai.--.*Ln 2i A10" f3 Ilv 0,3 Of c-cl -!I-,? 0--if" no.l:;W-1:4 161. (;.-i-A JJ,:2) ;.o;3'~ovr,::iy LiAitu'.. (viscose) (TI-----,;'JG Syn2-otjc) ROGOVIN, Z.A.; iL'OZHA!13,,:AYA F..".; P.~ -,!-' ~-., .: 9 " I: '1*7, L.P. Spirmiag of a triacetatc staple -fiber. iCli-..vol.o::. no.1:48-51 161. 04ifa 14:2) 1. Moskovskiy tek3tilInyy in-stitut Uro -,-~ogovin). 2. Vsesoyuznyy laucIL no-issledovatel'sidy inotitut iskiiss-Avelmofo vole-cm (for Hoz'lamikay-,, PerepecWdn). (Textile fibers,Synthetic) PLYPLINA, A.I.; RASKIN, Ya,,L.; ROGOVIN, Z.A. Photochemical degradation of nitrocellulose films. Report NO.2: Effect of oil-containing components on the photochemical de- gradation of cellulose nitrates in paint coatings. Lakokras. mat. i ikh prim, no 3:8-11 161. (MIRA 14:6) ~Nitrocellulose) (Protective coatings) PLYPLINA, A.I.; RASKIN, Ya.L.; -__ .., _.Z.AG Investigation of the processes of photochemical destruction of nitrocellulose coatings. Report No. 3: Effect of stabi- lizers on the resistanco of nitrocellulose -in lacquer-paint coatings to photochemical destruction. Lakokras. mat. i ikh. prim. no.4:2-5 161. (MIRA 16:7) (Protective coatings) (Nitrocellulose) S/183/61/000/004/002/002 BlOl/B2o6 AUTHORS: Vasillyev, Yu. V., Rogovin, Z. A. TITLE. Elaboration of a method for evaluating thermomechanical properties of fibers PERIODICAL: Khimicheskiye volokna, n* 4, 1961, 42 - 46 TEXTs The authors start from a study by V. A. Kargin (Ref. 1: DAN, 62, 239 (1948); ZhPKh, 23, 563 (1949)) describing the determination of t7e- deformation of polymers under constant load and at increasing temperature. In the present study, they describe a device where this method is applied to finished fibers which differ from initial polymers owing to orientation of their macromolecules. Fig. 1 shows the device schematically. The thread (1) to be tested is clamped. Clamp (2) is suspended from the cross beam (10), the lower clamp (4) is loaded with the weight (5). The thermos-bat is heated by the heater (3) (1 kw, 220 v). The rate of heating is controlled by rheostat (6) and scale (12) (or by autotransformer). The inspection glasses (7) and (8) provided with a scale permit measurement of the changes in length of fibers at increasing temperature. The other Card 1/# S/18~/61/000/004/002/002 Elaboration of a method... B101/3206 parts of the device are: (9) thermometer; (11) inclined face for catching the torn-off weight (5); (13) door of thermostat; (14) opening for the torn-off weight; (15) heat insulation layer; (16) core of thermostat. When loading the fiber with weights equaling at least lVi. of the tensile strength, the length of the fiber was 100 mm. When using smaller loads or studying the shrinkage, the length was 200 mm. The thread deformation is retarded owing to relaxation. Tests were made to study this effect. It was found that at a maximum rate of heating of 3 - 40C per min, retardation becomes negligible. With this device the thermomechanical properties were .nvestigated forg (1) nitron fiber; (2) fiber from A-20 (A-20) copolymer of acrylonitrile and acrylic acid; (3) fiber from modified A,-20Ca (A-20Ca) copolymer in which cross links from Ca were formed between the carboxylic groups of acrylic acid by means of Ca (OH)2 . The flollowing',thermomechanical data necessary for the Evaluation of fibers are proposedi --(a) temperature of the beginning of shrinkage; (b) temperature at which shrinkage reaches a certain degree (10 or 2V1.); (c) temperature at which the fiber has a certain residual value of tensile strength (10 or 30%). It is stated that the tensile strength values obtained by this device are slightly higher than those obtained by dynamometer, since the constant load leads to a Card 2/4 S/163/61/000/004/002/002 El.aboration of a method... B101/B206 reinford.pment o--F' 'the fiber. Tests of various fibers showed: .(15 Viscose.. rayon has Breater thermostability (30% residual tensile strength at 24000 than polyester fiber (300/" at 2oPc); (2) cross linking by means Of Ca increased the 30~; residual strength of A-20 fiber from 1341 OC.tO 2660C, that is, above the value for vis~..ose rayon. There are 3 figures, 4 tables, and 5 Soviet-bloc references. ASSOCIATION: IMoskovskiy tekstiltnyy institlut,(Moscovi Textile Institute) S/183U961~000/005/003/003 I B101/B110 AUTHORS: Wu Jung-jai, Rogovin, Z. A., Konkin, A. A. TITLE. Grafting of polyacrylic acid on polypropylene fibers PERIODICAL: Khimicheskiye volokna, no- 5, 1961, 18 - 20 TEXT: The present paper deals with the dimination of the disadvantages of pure polypropylene fiber (PPF): hydrophobic nature, poor colorability, alipperinean, and unpleasant "cold" feel. For this purpose, grafting of polyacrylic acid (PAA) on previously oxidized PPF was studied. PPF no. 35 of the VNIIV containing 6"'0' of amorphous, 61j"a of stereoblock, and 88~i,'~ of isotactic fraction was used. Oxidation was oarried out by means of atmos- pheric oxygen at 1000C. The initial PPF had a breaking length of 37.4 km, an elongation of 32c,~j. After 48 hr oxidation, the PPF contained 0.010~,~- of hydroperoyide groups (HPOG) at a breaking length of 33.4 km and a 2&,, elongation. After 96 hr, the HPOG content was 0-031~a, breaking length: 21.9 km, elongation: 14.7%- PPF oxidized for 48 hr was used for further experiments. Grafting of acrylic acid on oxidized PPF was conducted in sealed ampuls with a 50~/a' aqueous solution of the acid in argon atmosphere. Card 1/3 27567 S/183/61/000/005/003/003 Grafting of polyacrylic... B101/B110 The content of carboxyl groups in the grafted polymer was analytically determined after removal (washing-out) of the homopolymer (PAA). After 7 hr grafting, the following data were determined: with a 0.007i'-' HPOG content at 650C, no COOH groups had formed in the PPF, at 800C, PPF con- tained 3.50/c COOH. The data for 0.010'A HFOG are: 650C, 3-0% COOHj 800C, 4-1cP' COOH; for 0-031-" HPOG: 650C, 10.7% COOH; 800C, 17-Y/U' COOH. The reac- tion time exerted an effect upon the content of COOH groups. This content was 2.3,% after 3 hr grafting at 800C; breaking length of PPP: 31.0 km, elongation: 24.9~~. After 10 hr grafting, the COOH content was 14-011~1'1, breaking length: 27.8 km, elongation: 23.0%. To inhibit the formation of the PAA homopolymer, crystalline FeSO '7H 0 was added as reducing a,~ent in 4 2 amounts equivalent to the HPOG content in FFF. The following data were found. Time of temperature, content of COOH breaking elongation, ~a grafting, hr Oc groups, % length, km 3 80 3.7 27.2 22.3 49 21 1.5 31.4 24.2 1 10-7 27-0 24.6 121 01 Card 2/3 6 S/18 2/~37j V/000/005/003/003 3101 B Grafting of polyacrylic... 1 B110 In the presence of FeSO 4' grafting has to take place-in inert gas atmos- phere, since in the presence of 02, the Fe 2+ ions act as catalys.ts in the oxidative destruction of polypropylene. Inhibition of the formation of homopolymeric PAA was confirmed by the fact that grafted PPF was soluble in acetone (in which PAA is insoluble) without turbidity in the presence of FeSO 4' Modified PPF was colorable by basic dyes. With a relative atmospheric moisture of 55.8%, PPF containing 8.2% COO11 adsorbed 0.25% of the moisture, PPF containing 12-3% COOH, however, adsorbed 0.73%. There are 2 figures, 4 tables, and 8 referencess 3 Soviet and 5 non-Soviet. The four references to English-langua~e publications read as follows: G. Natta, J. Polymer Sci., a, 685 (1959); D. J. Metz and R. B. Mesvolian J. Polymer Sci., 16, 345 (1955); R. J. Orr, H. Levevne, Williams, J. Am. Chem. Soc., 12, 3731 (1957); R. Urwin, J. Polymer Sci., Z1, 580 (1958). ASSOCIATION: 11TTI Card 3/3 PI VP.SILIYEV, Yu.V.; ROGOVIN, Z.A. Synthesis of copolymers of acrylonitrile with acrylic and metha- crylic acids and formation of fibers baFed on tYem. Khim.volok. no.(:13-19 '61. (M1RA 14:12) 1. Moskovskiy tekstillnyy institut. (Textile fibers, Synthetic) (Acrylonitrile) BAYBAKOVA, Z.V.; ROZHANSKAYA, F.M.; ROGOVIN, Z.A. Formation of staple fiber from acetic acid solutions of triacetyl cellulose. Khin.volok. no.6:46-48 161. (MIRA 14:12) 1. Vsesoyuznyy nauchno-issledovatellskiy institut iskusstvennogo volokna. (Cellulose acetate) (Textile fibers, Synthetic) ISPIMMKOVA, A.G.; SL:,T';J1,'A, L.A.; "', Z.A. Specific ef-fect of cellulose nit!-..te on the rall]:ical pol~ia,~-rizatiozi of ~;ome vinyl mcnomclxs. VYso'--om. 3 no-1:46-49 ja 161. (MIPA 11,:2) 1. l,'Oskov.-,!-.iy tekstillny.,,- izirtitllt. (Ilitrocellu2nse) q (Viry.3 compounds) (PO2~~/Illtxizati--11) A GALIBRAYKH, L.S.; DEREVITSKAYA, V.A.; ROGOVIN., Z.A.; Prinimala uchastiye: LISHEVSKAYA. M. 0. Synthesis of new derivatives of cellulose and other polysaccharides. Part 13: Method of synthesizJ* cellulose dinitrile. Vysokom.soed. 3 no.7:980-983 i1 161. (14IRA 14:6) 1. Moskovskiy tekstilinyy institut. (Cellulase) M POLYAKOV, A.I.; DEREVITSKAY-A, V.A.;_ROGOVIN, Z.A. Synthesis of new derivatives of cellulose and other polysaccharides. Part 4: Synthesis of cellulose esters with ot-amino acids Vysokom.soed. 3 no.7:1027-1030 il 161. (;URA 14:6) i, 1. Moskovskiy tekstillnyy institut. (Cellulose esters) (Amino acids) GALIBRAM11, L.S.; DEREWITSKAYA, V.A.; ROGOVIN, Z.A. S:~n~xis of new derivatives of cellulose and other polysaccharidps. Part 16: Synthesis of some nitrogen-con- taining derivatives of cellulose and other polysaccharides. Vysolcom.soed. 3 no.10:1561-1565 0 161. (milu, 14:9) 1. Moskovskiy tekstilinyy institut. (Polysaccharides) (Nitrogen compounda) GUSEV, S.S.; SUN' TUN [Sun Tlung]; YEKIOLENKO, I.N.; -IMOVIN, Z.A. Infrared spectroscopy study of the structure of cellulose esters of aliphatic amino acids and of celluloze-polyardde graft copolymers. Vysokom.soed. 3 no.11:1684-1687 N 061. (MIRA 14:11) 1. Moskovskiy tekstillnyy institut i Institut obshchey i neorganicheskoy khimii AN BSSR. ' (Cellulose esters--Spectra) (Amino acids) (Polymers) SUN~ TUN [Sun Tlung]; GUSEV, S.S.; YERMOLENKO, I.N.;_ROGOVIN, Z.A. Infrared spectr6ocopy study of the structure of cellulose enters of aromatic amino acids and cellulose-acrylonitrile graft copolymers. Vysok-om.soed. 3 no.11:1688-1691 N 161'. (MIRA 14:11) 1. Moskovskiy takstillnyy institut i Institut obahchey i neorganicheskoy khim4i AN BSSR. (Cellulose esters--Spectra) (Amino acids) (Acrylonitrile polymers) ROGOVIN, Z. A., prof. (Moskva) New methods for modifying cullulose properties. Periodica polytechn chem 5 no.2:65-87 161. 1. Moskovskiy Tekstilniy Institut, Moskva. 0 s/o6 61/023/002/008/008 BIOIYB208 AUTHORS: Doradkin, B. A., KarUin, V. A,,, Meyerson, S, I., Rogovi,n,. Z, A. TITLE; In Ta'emory of Ser-ey Mikhaylovich Lipatov (Deceased) U PERIODICAL: Kolloidnyy zhurnal, v. 23, no. 2, 1961, 238-239 TEXT: This article is devoted to S. bl. Lipatov, an expert in the field of colloid chemistry and physical chemistry of polymers, who died on January 8j 1961, At various institutes he organized laboratories for high-molecular compounds., In particular, he established tile laboratoriya iskusstvennogo volokna im. Nauchno-issledovatellskiy institut im. Karpova (Laboratory of Synthetic Fibers of the Scientific Research Institute imeni Karpov), now the Vsesoyuznyy nauchno-issledovatel'skiy institut iskusstvennogo volokna (All-Union Scientific Research Institute of Synthetic Fibers). In the Soviet Union,Lipatov was the first to lecture on high-molecular compounds and the physical chemistry of dyeing. He was a university teacher for 30 years,. Mention is made of his monagraphs,"Fiziko-khimicheskiye osnovy krasheniya" ("Physico-cliewical basis of dyeing') (1929); "Vysokomoleku3,yarnyyP, Card 1/2 In Memory ... S/06 61/023/002/008/008 BI 01 YB208 soyedineniya" (High-molecular compounds) (1934 and 1943), "Problemy ucheniya o vysokopolimerakh" (Problems of high-polymer research) (1940~ Lipatov took part in conferences on colloid chemistry, and was for many years a member of the editorial board of "Kolloidnyy zhurnal" and of the nauchno-tekhnicheskiy sovet Ministerstva pishchevoy promyshlennosti (Scientific and Technical Council of the Ministry of Food Industry). Considerable organizing work was done by Lipatov at the Akademiya nauk BSSR (Academy of Sciences BSSR) as Academician and Vice President. There is 1 figure. Card 2/2 POGOSOV. Yu.L.; BOGOVIN Z.A. Progress in the synthesis of polysaccharides. USpOl*l-mq 30 no.10: 1215-1236 0 161, (MIRA 24:9) 1. Institut polimerov AN UzbSSR i Moskovskiy tekstilinyy institut. (Polysaccharides) KHVOSTENKO, N.M.; CHZHAN VYE-GAN; New method of preparing cellulose materials possessing vater-re- pellent properties. Zhur.priU.kbi-. 34 no.3:656-659 Hr 161. (KEU 14:5) 1. Moskovskiy tekstil'W institute (COUU1086) DEREVITSKAIA, V.A.; SMIIldIOVA G.S.;..ROGOVIN Z.A. Y 7 -omparative acidity of hydroxyl groups in D-glucose, o6- and P- -nethylglucosides, maltose, and cellobiose. Dokl. AN SSSR YJ lio.5:1090-1092 D 161. (MIRA 14:12) 1. Moskovskiy tekstiltnyy institut. Predstavleno akademikom M.M. Shemyakinym. (Glycosides) (Hydroxyl group) a ROGOVIN, Z.A.; CHERNAYA, V.V. Synthesis of cellulose derivatives resistant to the action of microorganisma. Izv.vys.ucheb.zav.; tekh.tekst.prom. no-5:109-113 ,62. (MIRA 15:11) 1. Moskovskiy tekstilInyy institut. (Cellulose--Microbiology) (Textile research) U ZHUN-ZHUY[Wu Jung-juili ROGOVIN, -- Z. A.I.-KONKIN, A. A. Grafting of polyacrrienitrile and polyvinyl acetate to'Pely- propylena fibers. Khim. volok. no.6:11-14 162. (MIRA 16:1) 1. Maskovskiy tekstilInyy institut. (AcT71onitrile) (Vinyl acetate polymers) (Propene) (Textile fibers, Synthetic) NEPOCHATYKH, V.I.; ROGOVIN, Z.A.; Prinimal uchastiye ROTENBERG, R. Development of the method for the production of thiourethane cellulose "haktaks" fibers and Jilvestigating their properties. lChim. volok. no.1: 64-68 162. (MIRA 18s4) 1. Moskovskiy tekstillnyy institut. DRUZHININA, T.V.; ANDRICHFIIKO, Yu.D.; KONKIN, A.A.; ROGOVIN Z.A. I Process of polyethylene fiber formation. Khim.volok. no.2:17-20 162. (IUU 15:4) 1. 14oskovskiy tekstilInyy institut. (Polyethylene) 1~99 A /00 0 4 4 V. Derevi tska~Y Chekalin, 'lulos,~ and othc-r t, - S 0' ne.: a v~tt 'Jes -ves -r "'17 L - I - s0~ sun~o der, !,sa--charides- X-,Ijlj. Sy,,-,thesi C,~j Jujos e C Ci nu -- I C 2 40;-,1 v. 49 no. soyedinenl'lra-7 vyso"0~01 ekulyurrl~j ~es were produced fromi cyanuric cel-Luiose SIII f 0ca" Oil Oil N k'\' 0 ",;~L N N N=C> N C/ -nIiCI oc,\, Nil S03H card 1/3 ,.'1 C G/ 2 '30 411 03,10 13 /0 2 - I /, i C 1 .1 !Zynt*hesis of ne,i I&rivat- ves ... 3 11 oil B-41 4 e t-:-ab tuti on dr--I;,-ree of L calcula ted from tha '~, con, ent s 1 0-'-jO -' hi, er 1 11 * 12 -.1 1 'Vhat calculated from the C1 content. C! atoms not ,.,-.4th ct-liulose ar-r, ursum~-~d to be piLrtiaily sw)oni.fied by alkalil j ZI C,211,00SCI with cyanuri,c chloride solution. In th is prcce--,3s, clho--:-ic,~! bon~is ,icromoleculoq. The phy-dc~ I str cturt, f m-Ly form amonE", cellultotu z 1, . ~ U ~ 0 cellulose has a -reat e"fect 'upon the substitution dw-ro,: becomeo, I C, 2-5-3-5 tirnes as high by the use of sulfize cellulose instea-; of cottor, ab, ri c. For 60-72 17-rs r. aas treated with aqueous solutions of T,.a suits o f sulfanilic or metianilic acids (3 moles acid per structural unit of A) a- -i tli 'he module -COGNa add-Ltion increased 'he -,H v lue to 1:20. C H 4. j - 4 - 5 - sulfur content of t7e su!'Lo dz~rivative of L was determined -r- 'itrat~on in the . avimetrically, its 4or, exchangeability by potentiometric t U i 3 corresponded to --resence o~ '-aC!. 1~,Iaxirrum S subsz4tution at- i, = 7 2 1 2,~' me,. -80 of C! atoms enter into -:-.e Cl content in the sulfo -/6. 5 L, A hw,-'ever, i s 4 0. 1 - 0 . 2 ""a* i c h s u. e ss ad, d I z _i 0 n a 1 h- Y d r o 1 y S -4 s . The curv(,s of pott!ntiomutric titrzation of sul.fo cationitea have two salient correspondirC-- to ti-~o types of acid C-rowps in tho macromolec-ale: - L, at PH = 1-6-4.0, the SO-zH ~rou-Ds are com-pletely neu-.rz--ilized, and E-t 7-E-8-1, the 6H C-roup formed by Cl hydrolysis is neutralized. Dd----rivatives Uard 2,/-41 S Z "'U-0 3/0 1 -"'/02 Zly t 'I-, e s I s, o fr JIL v a t i v i~ s .3 Of A can also be iroduced by treating cellulose aqueous solutions Df 2-chloro-4,6-dI(4'-suIfopheny1 amino) -triazzine- I, A, 5 and wiino)-triazine-1,3,5- Owin~ to its low substitution de,-reL thi.-- method is not suited for the synthesis of sulfo cationites. low '-'eE;ree of cationite sv;elline o-~;in-- to chemical bonds arno-6 macromoiecul;--s, -iE;ht recommend its application to ion exchan-e eh rcma to,-*ra phy. There are 1 figure, 2 tables, and 0 references: 1 Soviet and 5 non-Soviet. The maost, important reference to the EnElis',- Publication reads as follows: J.Viarren et al. Text. Res. J., 22, 58'r', 1952. ASSOC! ~ITI CIII: 'L:oskcvsk-iy tekstilInyy institut 0Y.oscow Textile Institute) SUB'-JITTED: March 2, 1961 Card 3/3 KiffAZIIEVI Yu,G.; ROGOVIrl, &A. -1 - I New method of preparing block copolymers. Vysokom.soed. 4 no.5-.78,3-784 PkY 162. (laRA 15:7) (Polymers) LIVSHIIIISI R.M.; nCGOVIN, Z.A Synthesis of graft copolymers using pentavalent vanadium compounds. Vysokoia.soed. 4 no.5:784 My 162. 0-MA 15:7) (Polymers) (Vanadium conpounds) 311111 121,111 [Sun Tlwigj; RWOVIN, Z.A. 3-,,-at.-hes-is of new derivative.5 of celltOlose and other polysaocharides- ynt-hvniq cf graft copolymers of cellulose and polyl- Pa.Tt 20z 3, enantliaxxide. Vysokom.soed. 4 no.5-.-7L,.---7-1'.9 !,~r 16-2. (HERA 2.5 J'1M;!-01JSI:iy I 111yy iZJ!!tit','t. (Call tClose) (Polymaides) 37hh8 S/190V62/004/005/025/026 /_7 B145/ 101 AUTHORS; Kryazhevy Yu. G., Rogovinp Z. A. TITLE: New method of preparing block copolymers PERIODICAL: Vysokomolekulyarnyye soyedineniya, v- 4, no- 5, 1962, 783-N TEXT: A method is described, which can be applied to a large number of monomers polymerizing according to a free-radical mechanism. It is based on the formation of free radicals during the reduction of diazonium salts by Cu+ or Fe 2+ 0 NC H N Cl + Fe 2+ + nA ---~ 0 NC H (A)- + Fe3+ + Cl - + N 2 6 4 2 2 6 4- n 2' 2+ 0 NCIH (A)- H (A)-, CIN 0 H (A)- + Fe + mB --,> -(B)M-c H 2 0 4- ii ClN2C6 4- n 2 6 4- n 6 4 -(A)- + Fe3+ + Cl- + N The nitro group can be replaced by any group that n 2' can be converted into an M2 group. A new type of block copolymer* in which several blocka are joined together at one point, can be synthesized by using an initial compound with several functional groups. The reaction can be conducted in aqueous solutions and emulsions# or in organic solvents Card 1/2 3706 8/190/62/OU4/005/014/026 B110/.B106 ~,,~';Hs: Sun Tlung,,Rogovin, Z. A. T I T --E, Syn-t-hesis of new derivatives of cellulose and other poly- sacchar-:'Ides. XX. Synthesis of cellulose -..-pcdyenanthamide 6-.,aft- copolymers Vysokomolekulyarnyye soyedineniya, v- 4, no. 5, '19062, 714-719- .L-XT:; Cellulose - polyamide (polyenanthamide) craft copolymers can br, by: (a) polycondensation of the methyl ester of 4-aminoen--in,.&W aC4d in the presence of cellulose ester and aminoenanthic acid; (b) con-~ densation of the relatively low-molecular hydrochloric polyaminoenanthic c'41oride 1,,;ith cellulose or cellulose esters containing.free OH groups; (c) reaction of cellulose with the hydrochloride of aminoenanthic acid chloride in the jresence of tertiary amines; (d) interfacial reaction of oorlY esterifiecL, water-soluble cellulose ester with the hydrochloride of aminoenanthic acid chloride. (a) Cellulose ester of aminoenanthic acid (Y = 50) was heated to 1000C in Ar with the methyl ester of aminoenanthic~ acid. As the amino acid radical is split off, this method cannot be used.. 'Card 1A