SCIENTIFIC ABSTRACT YENIKOLOPOV, N.S. - YENIKOLOPYAN, N.S.

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SCIENTIFIC ABSTRACT
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KOMU I C.~ , Yur I y I q UB LIA NSKAY.A , I., ! Lr" In OVnIq Y." NI) SGf Iya mikfsZtJc-,,rna; SlRGIY'--'NKO, Ly-uJudla -!-ridreyeirnat Moi~,aywma, -SHAGly-T, Vallentim Factorowin: YlMKOLOf,()V,-N.:,.2 doktrr khJ?L. ntuYp M LI-OL7.0rA (Fo2yfornutldohyde] Pollformalldegid. Kiev; Tekhnika, 196,4.. 90 P. (milu m--i) 28437-66 1JP(G) WW/RM ACC- NRt AP6017976 SOURCE CODE: UR/04l3/66/ooo/olo/oo7q/oo7q 1WERTOR, enikolopoy, S. S.; Karmilova$ L. V.; Konareva.-G. P.; Plechoya, 0. A.; i--e-- -y' - - lollfson, S. A.; Br k nsElem, A._A. 3q ORG: none TITIZ: Preparative method for heat-resistan0co22L=ei:s1of trioxane. Class 39p NO. 181808 SOURM Izobreteniya, promyshlennyye obr&ztay, tovarnyye znaki, no. 10, 1966, 79 TOPIC TAGS: heat resistant copolymer, trioxane, cyclic etherj copolymer ---ABSTRACT--- -An--Aixtho--r----Ce-rtif icate has preparative-method for -beenissued for a --heat-resistant copolymers~--of-+,Ao xane and cyclic ethers sucb-sa I -trioxacyc-lo~- --octenei--i-13-i7--triz=ycl-o-deda-n-e-,-o-r--l-, ioxacyclododecane. The method involves ~,bulk copolymerization of the monomers in the presence of cationic catalysts, first below the m~ andllthen.aboVe the mp of the monomers. IBO) ~SUB CODE: 07,11/ SUBM DATE: 02jun64/ ATD PRESS: o 6 Card "The Occurrence of Anor-heles Malcullpennis in Uninhabited Floodlands of the Sulak River and Data on Seasonal Changes in the Number of Mosquitoes in Dagestan", Med. Faraz., i Faraz. Bolez., Vol. 17, No. 2, pp 168-70,, 1948. UNIKOLOPOV, S.K. Behavior characteristics of Anopheles hyrcanus pall. Ned.parax. i P&raz.bol. no-1:31-33 J&-Mr 154. (kLRA 7:3) 1. Is Dagestanskogo institute. apidemiologii i mikrobiologii (direktor Inatituta Te.Te.Zhadkovich). (Mosquitoes) GRUSINOT,I.P.. skodamik, oty.red.; ANTIPOV-XARATAYXY, I.N., alcadeusik, oiv.red.; MWIKOT, K,,Kho, dotsent# oty,nd,j TANOT# T~,N,,g starshiy nauchnyy- isotradniko otirerade'; GAMAt T~V# p ~ red*; ?MR, 1J., red.; K4TUN, P.I. , red.ixd-ira; KAKTJNIj tokhn.red. [SoiIle of Bulgaria] Pochvy Bolprii. Nookys, 1959o 30 pe (KM 12:6) I.. Akademlya nauk.S.SSR. PochvenW Institut In. T.T.Dokucbayevs. 2.-Aff Tadxhikmkoy SSR (for Antipoy-Karatayev). (Bulgaria-Soils) USSR/Chemistry - Fuels Combustion Aug 52 "Periodic Combustion Flashes in Mixtures of Car- bon Monoxile and Oxygenp" X. S. Yenikolopyan and A. B. Nalbandyan "DAN SSSR" Vol 85, No 6, PP 1309-133.2 A quant description of the combustion observed in a mixt of CO and Q2 vhen a small amount of H is added by diffusion is vorked out on the basis of the reaction mechanism and the consts of ele- mentary reactions calcd from previous vark. 238TA When the pressure of the H on the membrane is decreased and its rate of entry to the mixt is decreased, the time betveen explosioas is in- creased. By means of eqs derived from the mecb- inism of the reaction, the article explains why the combustion flz only a flash and not a com- - plete burning of the entire mixt~. Presented by Acad N. X. Semenov 14 Jun 52 2-38~14 TENIKOWFrAN, N. S. Theory of degenerate branching chains. Part 1. Kinetic equations- or reactions with degenerate chain branching (with Inglish summary In insert). Zhur.fis.khim. 30 no.4:,769-783 Apr. 156. NLRA 9:9) 1. Akademiya nauk SSSR, Institut khtmicheakoy fisiti, Moskva. (Chemical reaction, Rate of) A -IA-1- j CI? -i.. "; TANIKOWFYANO Wes* I,- - ~... Dlommelon. Probl. kin, I kat, 9;133-137 '57. (Kin 11-.3) (Oxidation) (methane) sf- - . . - . C . ~ - ,- . : 11 -% ., , " : .. .~ "I- 'it 1, - . .. 1. 4 USSWRiyoical Chemistz~.r - Kinetics., C4=0nation., Explosiona,. Topo- chemistry, CatAlYsis- B-9 Abs Jour: Pafezat. Zhurnal Ehimi7s., No 3, 1958, 7184- Author H.S. Yenikolopyan., G.V. Kozrolev~r G.P. Savushkina. inst. Title, Upon the MarJmm Conce:.traticms of Stable Interwdi&rj Pro- duets in CrAoposite Chisin Rftctions. Orig Pub; 2h. fiz. lrhimii.. I.M., 33L., no 4,, 865-873. Abstract: It is shown for coemposits ^-..ain reactions of the type A-> B-) C ;)rocassding in two stages (chain fon2atiou of a stable intermediary prrduct B from the initial substanies A and chain eapendit",we of B vith the formtion of ftzj,%l substances C) that there is a pro- portionality ni - rA ja (1) among the conceutrations (n) of all active centers (AC) in:L ae reaction system; in thin equation,x does not depend on the rates of AC generatim. (W), of tbAir fication (a) and of their destructioa (g). Shoild a clavly re- Card. 21/3 -1- USW-physical Chemistry - Kinetics., Combuaticm,, Eolosiais, Topo- chemistry., Catalysis. B-9 Abs Yourt Referat. Zhurnal Dimlya., No 3,, 1958, 7184- acting AC gpontaneously generate., the eqwtion (1) vauld bee rigat only in the case of long enough chain . It :19 shown that the sta- tionaxy concentration of B does not depend on AC concentration in the reaction system., i.e. that it does nort depend on W., a and g. It was revealed at the oxidation of C94 (vhich proceeda fol- lowing the conposite chain mechanism CH4-*,~CH20 -4 final oubstan- ces) at 462 to 5250 &--d the ymsvixe of 53 nd of mere- c01- in the mixture CH4:2D that varying the comlitions influencing W and g (concentration 4 the hcmg. initiator N02,, vessel 41- lution of the mixture 8 time with Np) different cbesd cal treat- ment of the vessel walls) results in great changes of C4 oxida- tion rate (v), vb1ch in the criterion of AC concentration in the .reaction systemj but does not practically.influence the stationary CH20 concentration. -The experiments were carried out under static co&itiona, v was measured nLuometrical3,y,, and C920 concentration Card v2/3 -2- &-MItration of CROO rt Of the reactticn. (the activation Is 46 kmi mergy L? Is 16.6 kses v'th tha taVe4rata:,_-,e Per m3le. ]?e-- mole). L? of V(,,,) Card 313 :fwg-pzw~ Way allcu WM-MlRi filn.,th thA -~L- V -1 - . IC I , - , ~ r- 3 pn-vy F--m--O V-U J-1 T~ - 1j AUTBORt SAYASOVIYU o3 YERIKOLOPYAN,N.S. A - 2919 TITLEs Note on the Liffusion of Active contras In the Case of a quadratic Stripping of Chains In the Volume. (0 diffusii aktiTUYkb tsentrov pri kyadratichnom obryye tospey Y oblyesep Russian) PERIODICALe Deklady Akademli Nauk SSSR, 1957, Vol 113, Nr 1, PP 130 133 (U.S.S.R.) Receiveds 5 / 1957 Rtyievedt 6 1957 ABSTRAM The present paper furnishes a solution of the problem of the spatial steady distribution of tho forming heterogeneous active centers on the assumption, that they are destroyed in the case of mutual collisions on the surface and in the iAterior (i.9. in the case of quadzetto stripping of the chains). 'his problem arises *.g. in the came of a mixture of hydrogen with chlorine without admixtures of oxygen. Lot the velocity of heterogeneous generation bf much greater than the velocity of the homogeneous generation. he roaotion is assumed to take place in a container 4th plans-p6rallel walls with a distance of 21'betwoon the walls (on*-d1m*zsion&1 problom)olu that case the spatial distribution o*~ the active o*nten in described by the differential equation Z(41./dx2) - k (M)a2 - 0. Here n(,/OK3) denotes the 9oncentration P 6/800) of the active centers, k p (as the coefficient of recombination, Card.1/3 (M) (I/OR3) the total concentration of the mixture and of the pro- NoteIon the Diffusion of Active Contres in the PA - 2919 Can* of a Quadratic Stripping of Chains In the Volume. dustag x(cm) - ~ht coordinate measured from the-cen%er of the container, D(cm /sea) - the Uffusion coefficient of the active centers. The boundary conditions are also given. The solution of this differential equation can be represents& by the elliptic function of WEIMSTRABSt a =,fo (u). in the case of small velocities of the heterogeneous generation only few chains form at the wallop and therefore the probability of an interaction in the volume is small* Subsequently the equilibrium of the process oigeuvration and dectruction of thit-aotive centers is determined. Up however, a griat number of chains form at the walls in unit time,.W is determined from the *quality of the velocity of generation and destruction of the active centers in unit volume of the container* urthermore the case is investigated in which the concentration a of the active centers-varies con- siderably in the interior of the contalLere 'With fte help of the method of the WNUMSTRLSS function described here, ~the diffusion of the active centers for different conditions can be investigated (in which case the quadratic stripping of chains plays an important part. 0 Illustration) Card 2/3 PA - 2919 Note on the Diffusion of Active Centers in the Case of a quadratic Stripping of Chains in the Volume. ASSOCIATIONt Institute for Physical Chemistry of the Academy of Science of the U.S.S.R. PRESEWED M V.N.KOJ[DRAT'YEV, Member of the Academy SUBMITTEDs ie.ioo956 ATAILABLEt Library of Congress Card 3/3 ANISONYAII, A.A.; GUDKOV, S.F.; IVANOV, A.K.; YEHOLOPYAH, N.S.; HARKETICH, A.M.; HALBAMAK, A.B. ;- Results of the operation of an experimental apparatus for the manufacture of formlin from natural gas. Trudy VMIGAZ no*3:130-142 '58. (MIRL U: 8) (Natural gas) (formaldehyde) GOV/76-32-9-45/46 AUTHORSt Yanikolopyen, N. S., Polyak, S. S., Shtern, V. Ya. TITLEt On the Nature of the old Plame" Phenomenon (0 prirode kholodnoplamennogo yavleniya) PERIODICALt Zhurnal fizicheakoy khimii, 1958, Vol 32, Nr 9, pp 2224-2226 (USM) ABS)TRACTs Two viewe are represented in publications on the oxidation of hydrocarbons in regard to the nature of the "cold flame" phenomenon. M. B. Neyman (Ref 1) explains this phenomenon in terms of the explosive decomposition of organic peroxides, while Pease (Ref 2) and Norrish (Refs 3 and 4) explain it as a result of the thermal instability of the reacting system. The authors suggest a new mechanism, He holds that the peroxide radical reacts in one of two possible ways: either with the initial hydrocarbon (RO; + RH -ROOH + R*), or through molec- ular decomposition (RO; --RICHO + RIIO*). The second reaction becomes predominant with an increase in temperature. To explain this phenomenon an idea of N. N. Semenov (Ref 5) was used. This Card 1/2 is the so-called "degenerated branching"s RICOH + R02 --"- On the Nature of the "Cold Flame" Phenomenon SOY/76-32-9-45/46 .---a-RO* + O'H + RICO*. Because of the action of the above- mentioned mechanisms there is a temperature range in which the optimal conditions for "branching" exist. There are 12 ref- erences, 8 of which are Soviet. ASSOCIATIONt Akademiya. nauk SSSR, Institut khimicheskoy fiziki, Moskva (AS USSR, Moscow institute of Chemical Physics) SUBMITTEDi January 31, 1958 Card 2/2' ~ AUTHORS: -Yenikolopyan, N. S., Korolev, G. V. 20-2:18-6-25/43 TITLE: Formaldehyde and Acetaldehyde Yields in the Oxidation of Ethane at High Temperatures (0 vykhodakh formalidegida i atsetalidegida pri vysokotemperaturnom okislenii etana) PERIODICAL: Doklady Akademii Nauk SSSR, 1957, Vol- 118, Nr 6, pp. 1138-1141 (USSR) ABSTRAPT:~ The conceptions which in complicated chain reactions lead to the existence of extreme yields of stable intermediate products iKere verified at the example of the oxidation of methane. is 4ample for the further verification of these conceptions the next more complicated representative of thv homologous series !of-paraffin hydrocarbons, i.e. othanop was chosen. '.rho behavior of the yields of formaldehyde and acetaldehyde was investigated in the case of variation of the conditions of oxidation of C H at high temperatures. The apparatus and the 2 6 method were described already earlier. The experiments were carried out in two quartz reaction containers with a diameter Card 1/3 of 45 mm and avolume of 250 m1p the walls of which were Formaldehyde and Acetaldehyde Yields in the Oxidation of Ethane 20-118-6-25/43 at High Temperatures treated as follows: 1) by washing with K 2P2 (H2F2-container) and 2) by washing with a one percent solution of K 2B40 7 (K,B 07- containerl The results of these experiments at&lgw pressures (25 mm of mercury column) are illustrated &n a diagram for mixtures relatively rich in oxygen (C R -20 The addition of an initiator for the radicals (No 2)2~g~ 2 the dilution of the reaction mixture with a rare gas (N 2) increase the concentration of the active centres in the reaction mixture to a great extent. The yield of CH 0 and CH3CHO here remains practically unchanged, i.e. it goes not differ from the extreme yields. The same experiments were repeated at a pressure of 53 mm torr. The yield of CH 0 remains unchanged as before in the case of a modificaKon of the concentration of the active centres. However, the velocity of the accumulation of CH 3CHO increases considerably in the Card 2/3 very last moments of transformation. The concentration reaches e -U8-6-25/43 Formaldehyde and Acetaldehyde Yields in the Oxidation of Ethan 20 at High Temperatures its maximum if the transformation velocity already equals zero with respect to b6p. Then the extreme yields of the stable intermediate product are investigated in a complicated chain reaction. The maximum yield of CH3CHO suffers no systematic modification in the case of concentration changes of the acti7q centres in the reaction system. In the case of the mixture 2C H the yield of CH 0 becomes a function 2 6:02 2 of the reaction conditions: the conditions leading to the concentration increase of the active oentree in the system increase the yield of CH20. There are 4 figures and 2 references which are Soviet ASSOCIATION: Institut khimicheakoy fiziki Akademii nauk SSSR (Institute of Chemical PhysicsIS USSR) PRESENTED: July 30, by N. N. Semenov, Member, Academy of Sciences USSR SUBMITTED: July 27, 1957 Card 3/3 20-11$-5-30/59 AUTHORSt Yenikolopyan,_No S. , Korolev, G. V. TITLEt Formaldohyde Yields on Methane Oxidation, as Dependent Upon the Homogeneous Initiator Concentration, Inert Gas Admixtures and the Condition of the Reaction Vessel Walls (Zavisimost, vykhodov formalldegida pri okialenii metana ot kontsentratsii gomogennoeo initBiatora, dobavok inartnogo graza i ot nontoy- aniya atonok reaktoionnogo uouda) PERIODICAL: Doklady Akadomii Nauk SSSR, 1958, Vol- 118, Nr 5, PP-983-986 (USSR) ABSTRACTs The apparatus and the method of the measurings were described by thesame authors already earlier (Ref 1). Experiments on the not initidL-d oxidation of CH were carried out i43huartz reaction containers of the same hameter (45 mm) the surface of which was processed in different wayt 1) No special pro- cessing ("pure" container); 2) washed out by means of bydro- fluoric acid (H 2 F2container); 3) washed out by means of a Card 1/4 0 container). The results of 0 1 ~6 solution of K2B (K2B 7 7 4 4 20-118-~-38/59 Formaldehyde Yields on Methane Oxidation, as Dependent Upon the Homogencous Initiator Concentration, Inert Gas Admixtures and the Condition of the Re- action Vessel Walls these experimenta are illustrated on a diagram and demonstrate that the yield of C1120 depends on the state of the surface of tho motion containor. Thoroforep yield of C11 20 tit given conditions of the oxidation of C11 has no maximum, i.e. ve- locity of molecular consumption Of CH 0 is of the same order of magnitude as with the consumption In the chain reaction. The dependence of the yield of CH 20 on the nature of the surface of the reaction container observed here may have two reasonst 1) Destruction of the active centers on the surface of the reaction container takes place in the kinetic or dif- fusion-kinetic range. 2) Heterogeneous reaction of the con- sumption of CH 20 takes place in the kinetic or diffusion-ki- netic range. A dilution of the reaction compound with nitro- gen renders difficult the diffusion of the radicals and CH20 molecules to the wall and therefore is bound to increase the yield of CH 20. The admixture of materials which can produce active centers to the reaction compound is equally bound to increase the yield of CH 0. A diagram illustrates the results of tbeexperiments on ihe oxidation of methane Card 2/4 under the presence of different amounts of NO 2' Thus, e.g. 20-116-5-3s159 Formaldehyde Yields on Methane Oxidation, as Dependent Upon the Homogeneous Initiator Concent-ration, Inert Gas Admixtures and the Condition of the Re- action Vessel Walla ASSOCIATIONs Card 3/4 an increase of the 140 -content in the compound from 0 to 0,2 - 0,3 % increases the yield of CH20 by 4 to 8 times. At the same time a strong increase of oxidation velocity is observed. With sufficiently high concentration of the active centers in the reaction system the yield of the stable in- termediary product reaches the maximum value. Variation of the concentration of the initiator exerts strong influence on the oxidation velocity, however, practically does not in- fluence at all the yield of CH20- All results found here show among others the followings In the case of a not in- itiated oxidation of methane formaldehyde is consumed mole- cularly and the velocity of this consumption has the same order of magnitude as consumption in chain reaction. There are 4 figures and I reference, I of which is Soviet. Inatitut khimicheakoy fiziki Akademii nauk SSSR (Institute fcr Physical Chemistry AS USSR) 20-118-3__V/59 Formaldehyde Yields on MethAne Oxidationg as Dependent Upon the Homogeneous Initiator Concentration, Inert Gas Admixtures and t action Vessel W-alls he Condition Of the Re- PRESENTEDs Jul-Y 30, 1957, by it. N. Semenovy Membe r, Academy of Sciences, USSR SUBMITTED: JulY 30, 1957 Card 4/4 AUTHORs 2o-119-3-35/65 FTITLE% On the Negative Temperature Coefficient in the Oxidation of Hydrocarbons (Ob otritsatellnom temperaturnom koeffitsiyante pri okislenii uglevodorodov) PERIODICAL: Doklady Akademii Nauk SSSR, 1958, Vol- 119, fir 3, Pp. 520-522 (USSR) ABSTRACT: I oharacteristical peculiarity of the,oxidation of the hydro- carbons is the so eglled negative temperature coefficient in a certain temperature range. This negative temperature range has a strong influence upon the kinetics of the slow oxidat- ion and upon the character of the self-ignition of the hydro- carbons. The present theories (references 6112,13,14) actually do not explain the phenomena of the negative temperature co- efficient. This work investigates on the basis of the theory of the degenerate ramification by N. N. Semenov the negative temperature coefficient as a result of the competition of the elementary processes, which are participating in a composed chain reaction. At low temperatures the Qxidation of the hy- drocarbons goes on passing through superoxide radicals, which form after the reaction R + 02 --;%l ROO. This process has a low Card 1A steric factor (1o-3 to lo-4) and a low activation energy On the Negative Temperature Coefficient in the Oxidation of 2o-119-3-35/65 Eydroop.rbons (2 to 4 great calories/mol). The elementary process of the d~generate'ramification can be represented, after B. Llyuis and G. Ellbe (reference 13) as well as after V. V. Voyevodskiy and V. I. Vedeneyev(reforence 16), as result of the interact- ion of the superoxide radical with a stable intermediary pro- duct (a. g. with aldehyde) t ROO + R' CHO ----) HO + OR + R, Co. By this reaction 3 new active centers form from a radical.The reaction ROO RI CHO + R"O takes place with previous ino- merization of the superoxide radical and therefore It has a high activation energy (2o great oalories/mol). The competit- ion of the two above given reactions causes the maximum in the dependence of the reaction velocity on the temperature. At low temperatures the superoxide radical must react according to the bimolecular reaction. From a certain temperature pn- wards, however, the monomolecular continuation reaction, which above is given in the second place, predominates, by which the oxidation velocity is decreased. The destruction of the active centers essentially depends on the destruction of the radicals R. With increasing temperature the probability of the ramification decreases and on the other aide the steady con- centration of the radicals ROO deoreaeoef so that the limiting Card 2/4 process is the retLotion R + 02 -4 ROO. Therofore the oxidation On the Negative Temperature Coefficient in the Oxidation of 2o-119-3-35/65 Hydrocarbons velocity of the hydrocarbons rapidly decreases with increasing temperature. On the base .f this simplified oxidation scheme an expression for the re4ution velocity is written down. The velocity of the oxidation of a hydrocarbon passes a maximum with increasing temperature. The author also solved the foll- owing inversion problemi Given are the values of the ratio of certain parameters and of the difference of the activation energy of the elementary reactions. The steric factor of the reaction R + 02 -4 ROO is to be computed, so that the re- action velocity has its maximum at the temperature of 400OC- The concerning numerical data are given here. The generalized scheme of the oxidation of the hydrocarbons, suggested here, thus leads to a maximum of the reaction velocity with regard to the temperature. In case of further increase of the temper- ature the consideration of the reaction RCHO + 02 -4 RCO + + 1102leads to an increase of the reaction velocity. There aro 2 figures and 2o references, 11 of which are Soviet. ASSOCIATION: Institut khimicheskoy fiziki Akademii nauk SSSR (Institute of Card 3/4 On the Negative Temperature Coefficient in the Oxidation of 2o-119-3-35/65 Hydrocarbons Chemical Physics 7AS USSR) PRESENTED: September 14o 1957 by V. N. Kondratlyev, Member Academy of Sciences, USSR SUBMITTED: Septemb6r-11, 1957 AVAILABLEt Library of Congress Card 4/4 N I Ko ~_D PY/9 IV, Is 5(3) PHASE I WOK EXPLOrTATION SOV/3198 Nalbandyan, Aram Bagratwdch, a4d flikoalay S-.-,rg-,~,evIch Yenikolopyan Formalldegid - materlal day% pla6t'~aas (Formaldahyde: Raw Material for Plastics) Moscow, AN SSSR, 1959. 68 p. (Series: Akademiya nauk SSSR. Hauchno-poVa1yv.r-wt7ja strlra) 17,000 coples printed. Resp. Ed.: V.N. Kcnrlratlyev, AQa&-m1.,-1an; Ed. of Publishing House: V.N. Vyazemtsev; Tech. Ed.: A.P. Ouseva. Sponsoring Agency: Akt4tmlya rv!,~* SSSR. Redkolleglyn naucbno-populyarnoy literatury. FURPME; This book Is lntene,~!i for ohemists interested in plastics production, students of 6rgr%n.l,:~ chc-mialvry, and ly--rsons interested in the theory and practice of sywLhAia ma:bi;riAls prc.A..w;tion. COVERAGE- The booklst Aleiscri'tvts the netare of forpaldehyde, its principal properties, mtthOs Vr its pro&uc~tion, and its most important chemical reactions vith other s-etstaw!es -to pro-3,1ce synthetic resins and -plastics. Card 1/2 Raw Materl&l (Cont.) SOV13198 Also, some propertles Of' p:-oduats, and their Industrial and dmestie uses aTe T'=~V`i-~%111:~,t. 1-to pe-rraotmlltleG are mentionel. There are 10 SovIet TAKE OF' M11TEMS- Introd4otion 3 Ch. 1. Forwaldxthyd!- %n1j. Its prap--~I,tj,~tj 5 Ch. 11. The Production of Pormaldehyd.-? 9 Ch. III. Some Fomia.1dehyd,-3 Pol~msrs 19 Ch, IV. Phenal-formaldehyd- Resins 31 Ch. V. Urea-formaldehyde. -md- Some Other Resins 50 Bibliography 609 AVAIIABLE: Libraxy of Congress TM/jb Card 2/2 2-24-6o 50) SOVIBO-32-4-38147 AUTHORSt Yenikolopyan, N,S!, Kleymenov, N.A.,.Karmilova, L.V., Markevich, A.M. an Nalbandyan, A.B. TITLEt The Preparation of Formaldehyde in a Jet Apparatno by Means of the Oxidation of Methane Catalyzed by Nitrogen Oxides (Polucheniye formal'- degida na struyevoy ustanovke putem okieleniya metana, katalizirovannogo okislami azota) PERIODICAL: Zhurnal prikladnoy Xhimii, 1959, Vol 32, Nr 4, PP 913-919 (USSR) KBSTRACT: The problem ol'methane oxidation, very important in view of chemical utilization of natural gases, was dealt with in many investigations, - including those of Medvedev ZR efs 25, 2f and D.M. Rudkovskiy. The* present article describes some results of laboratory studies in ob- taining formaldehyde by means of methane oxidation.catalyzed by nitro- gen oxides. The following research workers of the VNIIGAZ M3F parti- cipated in individual phases of these studies: S.A. Antsonyan, S.Ya. Beyder, and N.I. Vinnikovap and of the Giprokauchuk MXhPt A.S.Zhadayev, N.N. Chernov and M.N. Shendrik. The methane oxidation was carried out under jet conditions at a pressure of the gas mixture near the atmo- spheric one and at temperatures of 600 to 8000C. Various conditions of experimentation were tried out in order to find the optimum ones, and Card 1/2 the results were as follows: 1. The treatment of the inner surface of The Preparation of Formaldehyde in a jet Apparatus by Means of the Oxidation of Methane Catalyzed by Nitrogen Oxides a vesselt in which reactions take placep with K2B407 increases and stabilizes the yield of formaldehyde and reduces the reaction tempera- ture by 80 or 100OC; 2. The relative yield of formaldehyde (CH20 : NO) amounts to 10 to 12 molecules per one molecule of the catalyst; 3. The optimum composition of the methane-air mixture was found to be 1 : 2; 4. The optimum temperature of the reaction is about 1000 C; 5. The stable run of the reaction is possible in metal vessels; 6. The laboratory results were confirmed by experiments carried out in a pilot instal- lation with a capacity of 13 m3/hr of gas-air mixture. There are 7 graphs and 35 references, 16 of which are Soviet, 14 English , 2 German, I Swiss, I French and 1 Japanese. SUBMITTEDt September 30, 1957 Card 2/2 5 SO11/80-32-5-35/52 AUTHORS: ,,O for initiation by the "law of chance". The Card 1/2 3/190/62/004/C.06/013/026 Initiating mechanism iyi the ... BIOI/Blic uncertainty in the case n - 0 can be eliminated by adding an inhibitor The kinetics of degradation of polyformaldehyde (at 2220C in 112) and of polyformaldehyde treated with acetic anhydride was investigated experimentally. In both caseaq a linear decrease of K was observed with increasing No (increasing,rb) according to initiation by the law of terminal groups. There are 2 figures and 2 tables. The mosit important English-language reference,,io: H. H. G. Jellinek, Degradation of vinyl polymers, N. Y., 1955- ASSOCIATION: Institut khimicheskoy fiziki Ali SSSR (Institute of Chemical Physics AS USSR) SUBMITTED; April 0, 1961 Card 2/2 MIAMI S11901621004100810091016 B1011B140 1,UTHORS: Bellgovskiy, I. M., Yenikolopyan, N. S., Sakhonenko, L. S. MIT"LL: Determination of the molecular weight of polyformaldehyde by' light scattering IJERIODICAL: V7aok6molekulyarnyye aoyedineniya) v. 4,* no. 8$ 1962, 1197-1203 TEXT: -An apparatus is described for measuring the Intensity of the'light: acattered by solutions of polyformaldehyde-in dimethyl formamide. one ray of a direc3 beam and one daflocted through 900 in thd diah containing. the solution are photomultiplied and then compared by dn alactronic coopeneating circuit. -'With a thormostat allows, ter4peratures up fo 200'C can be used. A differential refractometor in also described for determining the increment at temperatures up to 200 0 C- At 1500C density 06845 g/om j iefraoiive index ng - 1.390; Rayleigh constani u -6 -1 R90 -.(44-.0+1-5).-10 . cm .-Light scattering incieased linearly with Polyformaldehyde concentration. Themolecular weight was determined, Card -1/?, S1190162100410b~WI0091016' Determination.of the molecular.weight B101/B160 viocosimetrioldlly.as,a function of the intrinsic viscosity:. 44M 0.66 ' 4hi weights b.etween 89-10 oh yielded moleoular 3 4.4-10 and 3 285-10 . The molecular weights determined by light scattering y;ere not consistent with the viscosimetric values. Light sPaittering only yields a weight - average mole6ular weight. Thore are 10 figures and 2 tables. The iiont important Englich-language reference is: T. A. Kocho ?I E. Lindvig, J..Polymer Sci., 1, 9, 164, 1959- ASSOCIATION: Institut khimicheskoy fiziki Alf SSSR (Institute of Chemical Physics of the AS USSR) SUBMITTED" May 12,-1961 Card 2/2 6/19 62/004/012/002/015 B101Y2166 ,AUTHORS., 3kuratov, S. It., Ye -- lli-tkolvp~~n, Bonetskaya, A. K.f Voyevodskiy, V. T. '~TITLE* Mechaninm of lactam polymerization PERIODICAL: Vyaokomolekulyarryyv soyedineniya, v. 4, no. 12, 1962, 1770-1778 TEXT: In continuation of papers of 1952-54 (last publication Dokl. A14 SSSR, 95, 1017, 1954), the polymerization of E-caprolactam and f-enantholactam was studied in the presence of water, water and aci.d, and water and alkali at 231-50C. A slightly modified reaction scheme is proposed on the basis of experimental results concerning induction pprio'd, maximum reaction rate, time before maximum reaction rate is reached, degj~ee of conversion, heat kI k effect of the reaction: (1) B + H20 -1 AH; (2) AH + AH -~4 P + H 20; k1 k 1 k k (3)~AH + P LL* P + 11 20; (4) AH + B + X -:~L P + X 5 13 + P P Card 1/3 S/190/62/004/012,"OC)2/01'/ Mechanism of laotam... Biol/BI66 k k (6) B + H20 + X AH i X; (7 AH + X " B + H 20 + X; where B - lactam. AH - amigo acid, P - polyamide, X - catalyst. The probable cour-se of these reactions under diff erent conditions is discussed, and the following equations are derived for the rate of polymerization, w: (A) for polymeriza- tion of f--caprolactam in the presence of H2 0; w - alp 20][B1 ([Bol 2 _ [B11), where W - k k /2k (b) for polymerization of I-enantholactam in the 4 6 7; presence of water: w = aj[H20] [B) j [Bo] 2 _ (B 12 ;where a' - kO-5kO-5k6A3; 5 2 (C) for polymerization of E-caprolactam in the presence of H 0 and H PO 2 3 4 W 014 2 2 [AcH ) [B] V (B 0 (B] , where 01 - (k4 k5k6LH201/k7)0.5, and AcH = acid; (D) for polymerization-of t-enantholactam in the presence of 4 _ [B12 0 and H PO : w = at rL_AcHJfB] [B where 2 2 4 012 at ~ k0.25kO.75kO.5[H 0]0-5 AO -~5; (e) in the polymerization of E-capro- 2 5 6 2 3 lactam and ~-enantholactam in the presence of H 20 and NaOH, the presence of Card 213 S/190/62/004/012/002/015 Mechanism of lactam... BIOIIB186 NaOH,only reduces the induction period without affecting the polymerization kinetics proper. All the experimental results ar~e' satisfactorily explained by these equations. There are 3 tables. ASSOCIATION: Moskovskiy Cosudarstvennyy univernitet im. M. V. Lomonosova (Moscow State University imeni M. V.- Lomonosov) SUBMITTED: June 24, 1962 Card 3/3 5/190/62/004/012/003/015 Bioi/BW AUTHORS: Yenikolopyan, N. S., Bonetskaya, A. K., Skuratov, S. M. TITLE* Induction period of E-caprolactam and I-enantholactam polymerization under various conditions PERIODICAL: Vysokomolekulyarnyye soyedineniya,,V. 4, no. 12, 1962, 1779-1783 TiXT: A set of reaction equations was drawn up in a previous paper- (Vys6komolek. soyed., 4, 1770, 1962) for the polymerization of F--capro lactam and t-enantholactam in the presence of water, water and acid, and ki k water and alkali: ( 1 ) B + H 0 V=--' AH - ( 2 ) AH + AH "::4- P + H 0 k 2 ki k 2 k (3) All + P -:~- P + It 0; (4) AH + B + X -':-4- P + X1 (5) B + P P; k 2 k (6) B + H 0 + X 6 All + X; (7) AH + X -::Z. B + H 0 + X1 where B - lactam, 2 2 Aff - amino acid, P - polyamidot X - catalyst, whose functioning groups are either the end-Croups of P, i!n the case of polymerization with water, or Card .1/3 S/1',90/62/004/012/003/'O 15 Induction period of... 1310-1/13186 If 0 ion in the caso of polymerization in the preaqnce of acid. In the present caper, the experimental data are uned for deriving oyintionn for the induction period as dependent on the amount of H 0 added. Reaction (1) 2 k' catalyzed by the amino acid riv~es iise to: B + H 0 + AH AH + AH.. The 2 induction period t - (1/y) ln W/U; where w - U09t , a - k5lk,LBI/k;, and k IN reement with the experimbat, the induction period is , ['q2() In ac inversely proportional to'the-amount of water added. The induction period decreases with an increased addition of NrtOH. In this case, the cooperation of the hydroxyl ion must be taken into account besides reaction (1) and the k -11 - catalysia by the amino acid: 3 + H 20 + OH AH + OH . Hence, t a (1/y)(in w - 1n a), where Y,- W13)(H 0], a - k;k'-(Bj(OH-]/k,'. 2 2 1 Consequently, the kinetica of polymorizittion propooed Inturproto the reaction co'urses cox-rectly. There are 2 figures and I tab19. Card-2/3 5/19 62/004/012/003/015 Induction period of ... BIOIYB186 ASSOCIATION: Moskovskiy gosudarstvennyy univeraitet im. M. V. Lomonosovs, (Moecow State University Imeni M. V. Lomonosov) SUBMITTED: June 24, 1961 r L 12438!41 EWP(J)/EPF(c)/EWT(m)/B])S ASD Fc-h/Pr-4 RHIWW C 16 " "NR: AP30OU59 S10190163100310061086lloa67 N L___k.___Y_A~_olopyan, N. S. -AUT11ORi---Dudina in TITLEt Thermal and thermo-oxidativeldegrad.ation, or Eoly malde de. 1. Order of the thermal degradation reaction SOURCEs Vy*sokomolekulyarny*ye voyedinonlya, v. 5, no. 6, 861467 TOPIC TAGS% I thermal degradation, thermo-oxidative dagradation,~ degradation reac- tion, polyformaidehyde, activation anorgy '-ABSTRACTs-~--Th6-~6!yit-ors-ii4dizi the study were prepared by-polymorization of --formaldehyde -in -toluene. -using -calcium -stearate as initiator. A part of the polymer was stabilized by beating at 100C for three hours with acetic anhydride. ;The molecular weights of the -nonstabilized polymers were 2.57X10 suP-5-and 3.16x],o -sup -5,, -and -1.3&dO -svp- 5 --for the stabilized polymer. Thermal destruction was con- ducted in-a vacuum installation at 10 sup -4 = residual pressure, at temperatures varying from 120 to 346C, and the volume of liberated gas was detemined by pres- sure cbange, Such a method is applicable where t?2e sole gaseous product is a monomer, and the authors were able to show that it fitted their case by obtaining pressure readings almost matching theoretical ones. The semilogarithmic Card 1/2 .................... .................. 'ACCESSION NR% AP3001139 anamorp oses of kinetic decomposition curves of alpha-polyipxymethylene and the non- stabilized p63,yformaldebyde are carved, while.those. of the stabilized polymer form a straight line, indicating that in the latterinstance the decomposition of the polyaer follows a first order course. It implioa that haro the activation energy of active center destruction in leas than- the activation onorgy of monomer elinim- tion. A psLrt of the experlment was conducted by 0. M. Koz Iminy*kh, Orig, art. haot 15 formulas, 3 charts, and 1 table. ASSOCIATION.- Institut khimicheakoy fiziki AN SSSR (Institute of Chemical Physics, Madewl.of Octences WSR) SUMUMM .1ONov61 DATs Am t ol-,xd63 ENCLt 00 SUB COES: 00 NO REF SOVt 004 OTHERs 004 !Cad 2/2 SEMEBOV., N, N., akademik (Moskva); YENIKOLOPYAN-,,,,.N&,,$,.(Moskva) GOLIDANSIKIY) V. I. (MoBkva7 On'the problem of polymerization at low temperaturee, Rev chimie 7 no. Is 5M-511 16~. 1, Institut khimicheskoy fiziki AN SSSR, Moskv~L. 36055 -"/U6.3/62/007/0(J2/007/U 14 AO 57/A 126 solo AUTHOUS: ~~~~.Doctor of Chemical Sciences, Vatdanyan, M.S. TITLE: The production of polyformaldehyde PERIODICAL: Zhurnal vsesoyuznogo khimicheskogo obshchestva imeni D.I. Mendeleyeva, v. 7, no. 2, 1962, 194 - 200 TEXT: Properties, the produation, and the mechanism of polymerization of pulyi*Oi-,,ialdehyda ive discussed and some experimental vasults are prerented. A great part ot' the presented information is apparently taken from the Symposium on Macrochernistry in Canada, 1961. Polymers of formaldehyde are known since thadr discovery by A.M. Butlerov. Two types - polyoxialdehydes and polyoximethyleries can be noted. Ifigh molecular weight polyoximethylene, i.e., poly t'ormaldchydo, shows some outstanding physical and. chemical properties, thus being oi' interest "or various purposes. Monomer forffaldehyde used as initial material can be pre- patcd: i) As low-molecular compound., para- formaldehyde andX-polyoximethylene; 2) nz ccerai-acetal; or 3) by partial condensation. The monomer should contain les:i than u.uulrlj admixtures. Preliminary polymerization, or filtration through molecular Cilters allows to remove tIx impurities below v.001%. The purified Ca rd l /3 S106316 21U0 7/01J 2/U07/0 14 .The production ol . ..... AU57/A126 monomer can be polymerized in two ways In the presence of various catalysts. The latter is not con*umed during polymerization, i.e., active centers ave not lost. Tiie effect of H20, CH I CH30H, HCOOH, _3COOH, (CH3CO)20, CO, C02. and other substances on rate and degree of polymerization was investigated expericXrtally. In contrast to the OH ions the HCO3 and HCOO ions do not influence the polyme- rization of formaldehyde. thus, in principle, a regulation of the process and reproduction of polyformaldehyde with any desired molecular weight is possible. The stability of para- formaldehyde against heat and oxidation depends only on the nature of the end-group of the chain. The present authors demonstrate that at thermal destruction also processes of chain transfer to the polymv are of im- portance as well as to the evolving monomer formaldehyde, simultaneously with .generation, growth and rupture of chains. Studies of the kinetics of thermal destruction of polymers with CH and OCOCH3 end-radicals showed that the different rato of doatruction depends upon tho difforont activation anargy. It Vinn pro.."Id experim,ntally that oxygen increasea sharply the destruction rate, rind decivnser, even more the molecular weight. However, the molecular weight of acetylized polymer decreases much slower than !that of the non-stabilized polymer. This In- dicates that oxygen does not attack directly the middle of the) chii1n, Oxyjron oppnivritly (loan not attnok dlivotly tho polymal, ollain, bul, Uld ovolved monolwir Card 2/3 S/063/62/007/002/007/014 The production of .... A057/A126 formaldehyde. The observed greater mutual effect of oxygen and formic acid Is not explained yet. An efficient mixture of a stabilizer should be able to bind the evolving formaldehyde (limiting thus its further oxidation), also the evolving Cormic acid, rind contain radical inhibitors ivtaining the chain PVocOW3 of destruction. There are 9figures. Card 3/3 KOZIDVO P.V., otv. red.; ANDRIANOV, K.A., red.; DOGADKIN, B.A., red.; DOLGOPLDSKP V.A., red.1 red.; KARGIN, V.A., red.; KOLESNIKOV, G.S., red.; KOROTIOV, A.A., red.; KOBSHAK., V.V., red.; LAZURKIN, Yu.S., red.; MOVEDEV, S.S., red.; MIKHAYLOV, N.V., red.; PASYNSKIY, A.G., red.; SLONIMSKIY, G,L., red.; alIRNOV, V.S., red.; TSVETKOVV.N., red.; FREYM-iKRUPENSKIT, D.A., tekhri. red. [Adhesion of polymers] Adgaziia polimerov; sbornik statei. Moskva, Izd-vo AN SSSR, 1963. 142 p. (MIRA 16:10) (Polymers) (Adhesion) KOLESNIKOV, G.S., otv. red.; ANDRIANOV, K.A., red.; DOGADKIN, B.A.p red.; DOIMPIDSK, B.A.j, red.; YENIKOIDPYAB, red.; KARGIN, V.A... red.; YOnCV, PAr.-,,"?id-.;!'TOR=OV, A.A.$ red ; KORSHAKp V.V., red.; LAZURKIN, lu.S... red.; MEDVEEDIEV, S.S... red.; MIKHAYIDN', N.V.j, red.; PASYNSKIY, A.G., red.; SLONIMSKIY, G.L.) reei.; SMIFINOV, V.S., red.; TSVETKOV, V.N., red.; FREYMAN-KRUPENSKIY, D.A., tekhn. red. [Feterochain high-molecular weight compounds] Geterotsoppye vysokomolokuliarnye i3oedlnoniiaj obornik otatei. Moskva, lzd-vo "Nauka," 1963. 2,46 p. (MIRA 17:3) KOLESN1KOV, G.S., otv. red.; ANDRIANOV, K.A.p red.; DOGADKIN, B.A.t red.; DOLGOPLOSK, B.A., red.; YENIKOLOFYAN,. N.S.1, red.; KARGIDI, V.A., red.; KOZIOV, PST,-~;a.'-; *'kOROTKOVY A.A.p red.; KORSHAK, V.V., red.; LAZURKIN, Yu.S., red.; MOVEDEV, S.S., red.; MIKHAYLOV, N.V., red.; PASYNSKIY, A.G., red.; SLONIIISKIYI G.L.p red.; SMIRNOV, V.S., red.; TSVETKOV, V.N.j red.; FREYVAN-KRUPENSKIT, K.A.p tokhn, red. (Carbochain high-molecular weight compounds) Karbotsepnye vysokomolekuliarriye soedineniia; abornik statei. Moskva, Izd-vo All SSSRp 1963. 287 p. (MIRA 17;1) ACCESSION NR: AT4020701 S/0000/63/000/000/0100/0106 AUTHOR: Bellgovskly, 1. M.: Kravchuk, 1. P--, Nikol'skly, V. G.: Yonikolopyan. N.- S. TITLE: Low-temperature radiation-induced polymerization of isobutylene SOURCE: Karbotsepny.:ye vy*sokomolekulyarny*ye soyedinenlya (Carbon-chain macro- molecular compounds); sbornik statey. Moscow, lzd-vo AN SSSR, 1963, 100-106 TOPIC TAGS: polymerization, radiation polymerization, Iso'butylene, low-temperature polymerization ABSTRACT: In order to clarify the degree to which the reaction proceeds via an ionic mechanism, the kinetics of thet radiation polymerization of isobutylene over a temperature range of -40 to -196C were investigated. With respect to low- t (F~erature radiation polymerization, the following conclusions could be drawn: The independence of the polymerization yield of the Intensity of the dose indi- cates a linear relationship between the polymerization rate and the radiation in- tensity. The polymerization of isobuty-lene In the liquid phase is accelerated by a decrease in temperature down to the freezing point of the monomer. The reaction rate has an activation energy of 2.5 kcal/mol. in the solid phase, the reaction rate has a normal temperature dependence with an aliparent activation energy of Cord 112 ACCESSION NR'. AT4020701 +1.88 kcallmol. The maximum rate of polymerization Is obtained In the initial stage of Irradiation and the process shows a tendency to become saturated as the dose of radicition is increased. The molecular weight of the product-has a maxi- mum value during the initial stage of irradiation, after which it drops rapidly to a value of 15,000-20,000; thereafter it ' is essentially Independent of the dose.' Orig. art. has: 5 formulas and 5 figures. ASSOCIATION: Institut khimicheskoy fiziki AN SSSR (institute of Chemical Physics,: AN SSSR.) SUBMITTED: 26Apr62 DATE*ACQ:' 20Mar64' ENCL: 00 SUB CODE: OC NO -,IREF"SOV: 005 OTHER: 005 Card 2/2 NIKOLOPYANI, N.S.; SHILOV, A.Ye. "Chemical kinetica and catalyuisO b7 G.H.FanchenkoT. :V.P.Ioebe&va. Reviewed b7 N.S.Emi lopian, A.E.Shikov. Kin.i kat. 4 no 4:322-P25 Mr-Ap 163. (MIRA 1635) (Chemical reabtion, Rate of)(Catalysio) (Panchenko'v., G.M.) (Lebedev, V.P.) DUDINA, L.A.;. PTIRWYAN. N.S. Thermal and thermal oxidation degradation of polyformaldehyde. Part 1s Order of the-thermal degradation reaction. Vysokom.soed. 5 no.6:861-867 je 163. (MIRA 16:9) 1, Institut khimichookoy fiziki AN SSSR, (Formaldehyde) (Degradation) ACCESSICK NR: AP3003787 Slol-90163100510071096610993 AUTHORS t Dudinas L. A.; Yonikolopyan 11. S. TITLE: Thermal and thermooxidative degradation of polyformaldehyde. 2* On temperature dependence of thermal dogriuLation rate SOURCE: Vy*sokomolelculyarny*ye soyedira)niyas v. 52 rio. 4 19639 W-993 TOPIG TAGSs thermal dissociations dissociation rate, unstabili2ed polyformal- idehyde, activation energyp true activation enorgys chemical reactions' reaction rate,' constant ABSTRACT: The thermal dissociation of polymers upon heating was investigated, using the method described by the authors in (Vy*sokomoleks ooyed. 50 8619 1963)0 ,The polymer specimen was in the-form of a tablet with heat being applied from its base. At high temperatures (above 26w.) the dissociation rate of unstabilized polyformaldehyde (PFA) was found to be independent of the temperature, In the temperature range 190-260C the dissociation activation energy of PFA in the 0.02 gm; specimen yielled a value of 17 + 1 kcal,fmolp and for the 0.05 gm, specimen, 13 * 1 kcal/wl. An analytic method has been developed to determine the true activation ACCESSION NRt AP30037.87* energy in the chemical reaction when the limiting factor in the heat treatment is the intbrnal conductivity of the specimen. The effective reaction rate constant ig eipressed by 7. 00 IfiT'j" whore X - thermal conductivityp P densityp S cross-sectional area, E - activation onorgyp ko - constant in heat source tam WMT The effective activation rate constant is then plotted against the inverse specimer ,Weight. It is shown that when the apparent rate constant is inversely proportional to the sample) the true activation energy is twice that of the experimontaX value. The activation energy of the stabilized polymer terminated with the hydroxyl group iyiclds a value of 26 kcal/mol and with acetylene, E - 32 kcal/rolo "The authors ;express their gratitude to A. S, Komparwyets for evaluating the worke" Orig. art@ ';hast 13 equations and 3 figures, IASSOCIATICHt InsItitut khimioheskoy fisilti AN SSSR (Inatitute of Chamd"I Physios ;AX SSSR) [Card 21A V-25%08--63 i.~~.~'SIO19016310651008ln3511139 ~4pC= ON ffl~ sAP3004699 OPY4 TITLE i Thermal'ind thermooxidative decompo'sit 6n'of ~pojyformaldEh in Zde 3. Cha tranafer reaction in thermal discomoosition SOURCEI iY*30komo1sku1yarny*ye aoyedineniyaj`,-v*- 50-1 _n0.-. 00 1963t 1135-1139 ITOPIC TAGSs fomaldehyde polyner, alpha-ooly6xy~ethylena, thermal decomposition, chain-transfer,,:stabilization ABSTRACT t -This report is a-continuation of earlier studies by the authors on ithermal decompo3ition of formaldehyde polymers' -An 'explanation was sought for the deviat4nn of the decomposition rate from tLt of a first order reaction. The method ust:d was described in an earlier publication 4y the authors (Vy*sokorolak. 15, 986t 1963), the kinetics of the reaction being evaluated on the basis of gas rate evolution from polyforr-aldehyde samples at 130-20W in a closed system. It vias found that the rate of monomeric HCOH evolution in nonstabilized specimens tapered off within 5 to 10 minutes, a phenomenon not observed in control tests 1 1nan atmosphere of nitrogen.1 hus excluding.pressure as a potential factor of LL126o', A.00F, MON I - - /005/008/110/464 lilt t0300 70) -A 90163 /71 AUTHOASt Dudina. Le A g Karmilova, Yertikolo H&_S' m L _-V MEN - - ;; TITLE t Thermal and thermookidative decomposition of,polyformaldehydes 4, Kinetics of the thermooxidative reaction SOURCE; Vy*sokomolokulyarny*ye soyedineniyal vo 5, no 8P-1963p 1160-3264 TOPIC TAGM formaldehyde,.pR~i~formaldoh-vde. thermooxidative decompositi autor- catalysis.Latabi-lizatidn ABSTRACT: The polymer (0.382 gm.3) was placed-in' a'glass dish attached to a quartz spiral suspended inside a glass cylinder, -Through this a stream of oxygen, was passed at temperatures' rangilig from 165-2200, Tho.changes in weight of the sample were followed by recording the extension of the spiral. Tho gaseous do- ' I :n means of condenuation at temperatures down to 00 iti products, trapped by Mpo or analyzed for monr)mer formaldehyde, organic peroxides, hydrogen -twe, and formic acid. The viscosities of the samples were determined by perox, 'Ubbelhodets method in dimethylror-mamide solution at 150C ar from it the molea- id ular weights were calculated, It was found that We oxidative decomposition of /2 4CCEMION N4 tabilized-polyforma,ldehyde pi-oceeds -at- &-rate.n w'ly 50 tia I -nons as greater than purely thermal-,decompositionlin an atmosphere of aygonp formaldehyde being the only decomposition products Also, in the oxidative prdqeas the molecular weight. lof the residual polyformaldehyde-shows-aogear3.y instant drop in molecular weight ~to 2 6#103 from an initial figure of 3-1 j while in an atmosphere of argon the !molecular woight is affected only slightly'#' Experiments with polyformaldihyde Istabilized by means of acetic anhydride revealed a rapid slowing of the decom- 1position reaction and an insignificant drop in molecular weight,, It is suggested Ithat the polyformaldehyde dec9mposition process possesses autocatelytic character- I istics. Orig, art. hass 6 charts~,j ASSWIATIONt Institut khimichaskay fiziki, AN SSSR (Institute of Physical Chemist -lkcademy of 66ioncesp, SM) SU EMITTED; 05Jan62'. UTE ACqt 2SAug63- EMLs 00 ISUB COM CH W W SOV# .005 OITM 1 002 Card -.EPR/EWP(J)/EPP(C)/EWT.(fl)/BDS--"-'--A-31)'- Ps-4/pc-4/ L -1560143 T--~47 - ;_ffiVW-T/Jt- ACOFMION-URv:03004710- 8/0190/63/005/008/1245/V -L, V.; Yenikolopyanp No So AUTHORSt DuAina,- L. A,,- Aiyantsp L,-Aol Karmilovat TITLEt Thermal and tharmiJA& qf.oolyfo maldehydeC_/_'5. The t1yA dncompa&iti4 role of formic acid in the thernooxidative reaction -1249 SOURCEs Vy*sokom~11kulyarny*ye soyedine ya., v# 1963, 1245 rma TOPIC TAGSt thermal decomposition, therwooxidative decomposition, polyfo 1- dehyde, formic acid, stabilization ABSrRACTs- Experiments were conduo ted using 0-382 gm of acetylated polyformal- dehyde having a molecular weight of 0 .7*102, which was subjected to vapors of 85% formic acid in a current of oxygen or argon, or to the acid alone. The kinetins of polyformaldehyde decomposition were recorded in an earlier paper by .. At Dudinap L. V. Karmilova, No S. Yonikolopyan (Vy*sokomo1ek. soed., 5, 1160, 1963). It was found that at 220C tho rate oC thermooxidative decomposition of polyformaldehyde in argon increases in proportion to the formic acid gas content and that an almost double rate and volume of destruction take place in the prea- once- of oxygen. Where samples of polyformaldehyde were reacted with liquid 65% -rard V2. ..Card PROSHLYAKOVA, N.F.; SANAYA, I.F.; 'YFNIKOLOPYAN _N.S._- Polymerization of formald'.ehldo. Part 1: Order of the reaction in anionic polymeri2ation. Vyiokom.goad. 5 no.llsl632-1637 N 163. ()URA 17.- 1) 1. Institut khimichaskoy fiziki AN SSSR. IRZHAK, V.I.; ROMANOV, L.M.; I~NIIL PLO Polymerization of formald-ohyde. Part 2,. Effect of a monomer on the mean degree and rate of polymerization. Vysokom.soed. 5 no.lltl638-1640 N 163. (MIRA 17il) Institut khimicheskoy fiziki AN SSSR. BOBXOVA, L.P.; XORSAKOV, V.S.; ROMANCY, L.M.; YENIKOLOPYAN, N.S. Pol*rization'of formaldehyde. Pa rt 3t Effect of active addition agents on the polymeriuLtion of formaldehyde in solutions. Vynokqi~.soed- 5 no.Ili:1653-1657 N 163. (MIRA 111r1) I.Institut khimicheskoy fiziki, AN SSSR. FROSHLYAKOVA, N.F.; SANAYA, I.F.; YEN1KOLOPTAN,,.-Nt-SV1, Polymerization of formaldehyde. Part 41 Change in molecular weight of polyformaldehyda in the courva of polymorization* Vysokom. soed. 5 no.'L2:1776-1779 D 163, (MIRA 17q) 1. Institut khimicheakoy fiziki, AN SSSR. BOBKOVA, L.P.; KORSAKCV, V.S,j ROMANOV, L.M.; YENIKOL4)PYANp H.S. Polymerization of formaldehyde. Part 5t Effect of water, metbyl. alcohol, acetic acid, and acetic anhydride on the polymerization of formaldehyde in solutions. Vysokom. soed. 5 no.22:1780-1784 D 163. (MIRA 17:1) 1, Institut khimicheakoy fiziki AN SSSR. FF BDS--ASD 2 i-6 Y-Pr-,4---%IWW---- 'AUTHORO.' Dudinap- L. A.;'Karmilovas 11, V.;, Yeni~lo atn U. S. py Oxidat TITU ive destruotion - of. polyfo=aIdebyde "ROM 1501 no. 2# 1963 3 v-312 I E: AN SSSR4'_.~Dok1adyp:v. b9 --TOPIC- TAGS: --thermal- oxidative--destruotion polyformildehyde --depolymerization ~ftctiv ation energy,, reaction rate -destriiotid-n- OolyforvAldeb7d*--,W-ith---hydroxyl or with- 1ADSTRACT-t ' Thermal -oxidative -of-, -acetylenlic end-groups was-carried~-cyutat-180-185 degrees; -condensed products were n~~Iy c Liected and analyzed. Regardles6 of the end group,, main products contir 0 --were --monomeric - formaldeEy with- traces- of-__T_ 6 thers i - but to ~ peroxides. The coux-se- of- the 0-initiated depolymerizAtion and pr&_,ti- tal absence of.oxidation reaction %res studied. Activation energies and reaction rates were calculated for proposed reactions where the molecule can disintegrate as -,,shown in -equation (1) of anolbsure,l or it cAnadd amolecule of 0 an shown in --anclosure-1, then gmbsequent, looTmerizo., However.,,-perokides -were - Ilot detected: - either they were rot formed according to proposed reactionss or P-ddi- tional -reactions, not calculated hewain, are imrolved. Also none of the proposed reactions explains the formation of' formic acid. Further study is reco=onded. J'Card 1/11_", ociatlon:- Charitcal. Physics, -kciLderq Of Sciences SSSR ~.-121 ~J5_6 MIEW -J)YtPF(c)AW AFFMIAsD SA-026/6j/150/003/0 ~~4CCSSSIOVM-AP3000753 0 cSO/0583 AUTHOR t -A-0-1-Berlin .-Al. A3.0 Urmilova U'Le, V.; Yenl)colopyan, N. S. the, -da'structlo I c `polyfomaldehyd TITLE:' Changing molecula r weight, -oiddativie n ;6- --SOURCE:- 'AN SSSR. -DaklacLy, vo. 130 j nji. 3,1063o 580-583 TOPIC TAG~t oxidative'destruction, p6lyformaldehyde .~In, coikt --and- Unuation of -~=9;-7s;--Tehikol:opyan-(DAN.1--150-~,~,-,iio L.2 il& tudY-va 0 made to determine. whether JQ L- 3) the--0- initiated- de6ompos f _-_poiit6z%i1d6h7de- ik(kik - indeed -go -a to-the - - _ffie enol9sure. _. ZVorimentaniv a i rp, rop. in mo e ar -weight equation,shown in 3ha d was found, -such L that. its dependence on the degree of conversion is representative of the formation of two, stable fragneints- iTon decomposition of the Molecule. These fra Igments could be fomed either because the 0 inhibits decomposition of the -active contor.in addition to initiating destruotion of the polymer or because of acidolysia of the polymer by the acid - from -the oxidation process. CalcdationB also indicated that the above-proposed reaction does not account for the drop in molecular -weight. Orig. art. has: I.figuro and 28 equations. Card 1 .......... . OOLUMKrY, V-1-P TROFDOVA, O.K., RadUtion-irAiced so]JA-state polywrlsation. ParUieftlywrisation of sarylotitftlee~* ;-4 P&AM.Polywrization of vigwl asetal4a Variou kiab of pelpwrisaUen ratA tw*sratmms ft"nismads. ra AND)f1i)L-3/Wr Mx ~CCK~STON Ui kM-"152 3/01190/64/006/001/oWe/000 --IIA-kiv- V. T.. Yeni-kolopyan, H. Terakha", 5-.- Ui5TRA(7: The radiaLion tne 9olid phase of morm-nom was Lnves- volmPri7-aLion rate ua =z alzo ue--4. Th# talorimat-r-le determirmv~ I pim rv . ne- --- , VP 93 M SM* M-1 omm, Cab I ff~g_-,m u -L /F c -ill ,pw(c n) n L rra,l L .~F. 71y -.t L~ i I , -, I T ~; 11 .. . A , ! , ~ 4 )(4 1 , 1 . - . - . , -t, ..xi . - .; , ul Iq i . i-. . f ,e I I .. --U 7), - _.,r_ - fu-, t t. 0, -j a 1, C, "L..2 t u f,- E f,