SCIENTIFIC ABSTRACT BERLIN, A. A. - BERLIN, A. A.

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AUTHOR% Berlin, A. AA 8564o S10641601000100610011011 B020/BO54 TITLE: Synthesis and Properties of Polymers With a System of Cqnjug te Bonds I PERIODICAL: Khimicheskaya promyshlennost', 1960, No. 6, pp. 6-14 TEXTt The present paper deals with polymers with aromatic nuclei which are bound to one another either directly or by such groups or atoms as to guarantee a continuity of the conjugate Tir-electron chains The'accumulation of benzene nuclei in the macromolecules may lead to the formation of linear, linear-annular, angular-annular, ramified, flat ("aromatic parquet"), or three-dimensional structures. With an increasing number of bound aromatic nuclei, the melting point and the thermostability of molecules with linear structure increase, while their solubility falls. An introduction of methyl groups lowers the melting point, and improves the solubility in aromatic hydrocarbons. For the production of highly heat- resistant polymers,10those with graphite-like structure are most interestirg therefore, the s~Ebdy.of synthesis and properties of linear polahenylemLl_ Card 1/3 85640 Synthesis and Properties of Polymers With B/064/60/000/006/001/011 a System of Conjugate Bonds B020054 and polymers with graphite-like structure seems to be mos", important. This synthesis can be performed either by conversion of low-molecular aromatic compounds, or by intramolecular destructive cyclization of certain acyclic high polymers, or by dehydrogenation of polymers which contain bound alicyolic groups. A perfluoro polyphenylene obtained from p-dibromo-- or diiodo tetrafluoro benzene is particularly heat resistant. Poly- phenylenes are sparingly soluble in aromatic hydrocarbons, and show an anomalous dependence of n/c on o. The high temperature coefficient of solubility, the anomalous viscosity, and the dependence of the intrinsic viscosity on the displacement velocity, as well as the unmeltability show that the polymers consist of relatively short, but strongly associated, solid, almost linear macromolecules. An introduction of methyl groups in the polyphenylene chain changes the properties of polymers considerably. The integral and differential curves for the distribution of the highest- molecular fraction of polym;_wthyl phenylene show that the fraction contains small amounts of products with molecular weights of up to 300,000. The author describes the production of linear or poorly ramified polymeric aromatic compounds by reaction of Cul+ with benzidine bisdiazcnium, the effect of azo groups in polyphenylene polyazo compounds and their Card 2/'5 8564o Synthesis and Properties of PolYL-2r6 With S/064/60/000/06/001/011 a System of Conjugate Bonds B020/BO54 vJ.scosityt the paramagnetic electron resonance of these compounds and their eleotrophilic properties, the transition of polyphenylenes on heating from the singlet- to the triplet state, the synthesis of polymers with heteroatoms in the benzene ring from aromatic diazonium compounds and their properties, the synthesis of polyphenylene oxides by oxidation of 2,6-disubstituted phenols with oxygen in the presence of CH2C12 and pyridine, the synthesis of aromatic polymers with a conjugate quinone P,Toup and with amino groups and their properties, Further,he deals with polymers with hetero- and metal cycles in the conjugate chain. Fig, 4 shows the temperature dependence of the specific electrical conductivity VX' of thermolyzed polyacrylonitrile'land Fig. 5 the temperature dependence of the electrical conductivity of 'a polymeric chelate complex7of ethylene percyanide with iron, The author mentions V. Vansyatskiy, [as well as V. A. Tallroze of the Institut khimichesko~ fiziki A SR (Institute of Chemical Physics of the AS.:USS.1 . There are 5 figures and 48 references: 17 Soviet, 16 US.- 6 German, 4 British, 1 Italian, 1 Swedish, 1 Swisso 1 Australian, and 1 Belgian. Card 3/3 00 t,1091 2X09, I AUTHORSs Berlin, A.A.i-Xhanukayeva, I.A. 8h288 S/138/60/000/006/001/008 A051,/AO29 TITLE; The Pro4uction and Main Properties oArafted Copolymers of Styrene'land Rubber. PERIODICALt Kauchuk i Rezina, 1960, No. 6, pp.,,20 - 22. TEXT: The article presents the results of an investigation on graft- ed copolymerization of synthetic rubbers and styrene in aqueous dispersions (latexes) and a solution of the polymer in the monomer. The methods of conducting grafted copolymerization in heternzenous dispersion systems of polymers and monomers in various liquid mediums have been developed only slightly. The author has prgliously published an article on the subject,51 (Ref- 7), Bgtadiene-styrene CKC-30 (SKS-30) and butadiene-acrylonitrile latexes of CKO-18 (SKN-18) 9 CKW-26 (SKN-16) g and CKH-40 (SIM-40) rubbers were taken for the investigation. Table 1 shows the results of thecompara- tive characteristics of the rubber and styrene copolymer.(in the ratio 33: 66), and the mechanical mixture of a similar composition and the initial components. Table 2 gives the figures on the main physico-mechanical pro- Card 1/3 84288 S/136/60/000/006/001/008 A051/AO29 The Production and Main Properties of Grafted Copolymers of Styrene and Rubber parties of the produets of the interaction between the styrene and rubber, The data show that during the reaction an ifiltiated destruction of the rub ber and the formation of branched structures takes place. An investiga- tionof the thermomechanical properties showed that the formation of branch- ed structures somewhat decreases the vitrification temperature and the thermostability according to Martens (75 - 780C instead of 80 - 850C), but increases the temperature range of the highly elastic state and the tem- perature of transference to the viscous-fluid state (Ref, 7). The styrene copo2ymers grafted with butadiene-styren3 rubber are not inferior to the so-called latex polystyrene as to their dielectric properties and have a higher resistance. It is noted that a-comparatively large amount of rubber is required in the grafted copolymerization in latexes of synthetic rubbers, Apparently in this process the chain transference process takes place with a lack of intensity for the following two reasonss 1) incomplete contact between the rubber particles covered with the emulsifier and the monomer, 2) the presence of antioxidant admixtures, disrupting the growing chains. When conducting grafted copolymerization in the mass. the conditions are Xard 2/3 84288 S113816010001006,10011008 A051/AO29 The Production and Main Properties of Grafted Copolymers of Styrene and Rubber more favorable due to a better contact of the ingredients and because pre- liminary purification of the rubber from admixtures is possible. The authors point out that by developing a method for grafted copolymerization of styrene and rubber the amount of elastomer would be reduced and a more tensile and durable product could be produced under atmospheric conditions. The principle used in Reference I by the author in solving this problem is outlined. An investigation of the mechanical properties of the grafted copolymers obtained by this method shnwed that even in the case of a small amount of rubber added plastics with rather high mechanical properties could be produced (Table 3). It becomes apparent that with an increase in the rubber latex (under given experimental conditions) the dispersion and the stability of-the styrene emulsion increase, which facilitates the con- tact between the components and rendets their interaction more effective. This, In turn, leads to the formation of the grafted copolymer. There are 3 tables, 2 figures and 7 referencess 6 Soviet and I American. ASSOCIATION: Institut khimicheskoy fiziki Akademii Nauk SSSR. Kuskovskiy Khimzavod (Institute of Chemical Physics, AS USSR. Kusov Card 3/3 Chemic-al Plan-4. BERM, A. S~nthests and properties of polymers witb a conjugated bond system. Zhim. prom-no. 6:444-452 8 160. NEU 13:11) (Polymers) 20250 S/138/60/000/012/001/009 A051/AO27 AUTHORSt Berlin, A.A., Gillman, I.M. TITLE't The Production and Properties of Block-Copolymers Formed in the Mastication of Rubber and Polystyrene Mixtures PERIODICAL: Kauchuk i rezina, 1960, No.12, pp. 1-3 TEXT: The authors have investigated the main physico-mechanical prop- erties of materials produced in the mastication of polystyrene and various elastomer mixtures. Mention is made of the favorable conditions of block- -copolymer-formation, especially in an inert gas medium, during mastication of polymer mixtures. It is stated that the mechanism of this reaction can- not be ezplained by poly-recombination of the radicals alone, since in this case the chain reaetion has the greatest significance, leading to the for- mation of black-copolymers and branched macromolecules (Ref.1). The authors consider that the peroxide macroradicals formed by interaction with 02 due to the chain nature of the mechano-chemical block-copolymerization process can serve as active components taking part in the formation of the block-copolymers: Card l/ 5 20250 S/138/60/000/012/001/009 A051/AO27 The Production and Properties of Block-Copolymers Pormea in the Mastication of Rubber and Polystyrene Mixtures R~ + O~' ROO- R OT + --CH - CH~- -oR OOH +-C'- CH2_ A n I X X X CH - + R 00'-.*-C -CH 2 n 1 2 OORn R 00*+*CH CH - R OOCH - CH - etc. n 1 2 n 1 2 X X (friction number 1.25, average molecular with butadiene CK6 Mastication in an air medium on rollers was performed t-150-1600C) using mixtures of polystyrene (block.-type weight Mav ~ 80.000 and emulsion-type-, Mav '200.000) Card 2/5 20250 S1138160100010121001100ci A051/AO97 The Production eaid Properties of Block-Copolymers Formed in the Mastication of Rubber and Polystyrene Mixtures (SKB)q butadiene-styrene CKC-30 (SKS-30), butadiene-acryloLitrile CKH-18, CXH-40 (SKN-18, SKN-40) rubbers, polyethylene (M ay - 200.000), polyisobu- tylene (M ay a 200.000), butyl rubberland chloroprene rubber. It was noted that materials with the greatest specific toughness and static bending re- sistance were formed from the combined mastication of polystyrene A mix- tures with 20-25% synthetic rubbers of the SKS-30 and SKN-18 type (Fig.1). Masticated rubbers produced onan emulsified polystyrene and SKS-30 rubber (25%) base are characterized 2on the average by the following figurest 2 specific toughness, kg.cm/cm .... 53-60t static bending resistance, kg/cm 930, heat resistance accordgng to Martens, 0C... 86, tangent of the angle of dielectric losses at 10 cycles... 0.0019, water absorption per hour, g/dm2 ... 0.01. The authors point out that the development of the mechano-chemical theory on block-copolymerization in the rolling of polymer mixtures helps to explain the observed drop in the stability of the mate- ~ial when adding a radical acceptor (1 2) and also certain dyes on the rollers. It is concluded that the introduction of these dyes and the Card 3/5 20250 S/138/60/000/012/001/009 A051/AO27 The Production and Properties of Block-Copolymers Formed in the Mastication of Rubber and Polystyrene Mixtures radical acceptors lower the stability of the material probably,due to an inactivation of the macroradical parts formed during the mechanical de- struction of the polymer chains. There are 2 tables, 1 graph and 6 refer- ences:5 Soviety 1 English. ASSOCIATION: Kurskiy khimi-cheskiy zavod (Kursk Chemical Plant). Card 4/5 1P 87642 S/191/60/000/012/001/016 .19- .2 2 2.0 B026/BO66 AUTHORS. Berlin, A. A., Kronman, A. G., Yanovskiy, D. M., Kargin, V.A. TITLEs Impact-resistant Polyvinyl Chloride FERIODICkLt Plaoticheakiye massy, 1960, No. 12, pp. 2 - 3 TEM Heat resistance and impact of PVC are comparatively low which con- siderably confines its range of applicability in spite of its other good Properties. It is possible to increase the impact strength of PVC by synthesizing vinyl chloride polymers grafted with various rubbers, by means of a chain transfer reaction. The mechanical properties of Viniplasts obtained by this method are, however, no better than those of Viniplast made of PVC. The present paper investigates the physical and thermomechanical properties of Viniplast obtained from compositions consisting of PVC coplasticized with a polar synthetic rubber(PSR). Owing to interaction of functional groups of PVC with the rubber, interlaced structures of grafted copolymers are formed. PVC was mixed vith stabilizers (litharge, calcium stearate) which were hot-rolled along with the adequate amount of PSR. Plates were out from thin foils of the rolled Card 1/3 87642 Impaot-resistant Polyvinyl Chloride S/191/60/000/012/001/016 B026/BO66 material, and a stack of them was hot-pressed. In the test of Viniplast containing 10% PBR of different types, its physical and mechanical properties ranged within T following limits: specific impact strength from 57.2 to 84.8 kg.cm/cm (8.6 for initial PVC)j maximum tensile strength from 3970to 532 kg-CM2 (550 for PVC); vitrification point between 76 and 80 C (75 C for PVC). The addition of 10% PSR to the Viniplast, thus, increases the specific impact strength up to the 6 to 10 fold, whereas the tensile strength is somewhat reduced, and the vitrification point is maintained. The dependence of the specific impact strength, tensile strength and relative elongation on the rubber content in Viniplast was investigated (Pigs-1-3). The optimum ratio of PVC:PSR for obtaining Viniplast with high apecific impact strength is 90:10 (Fig.1). The introduction of 2.5% rubber increases the impact strength of Viniplast to the tbioefold. At a rubber content of 15 - 50%, Viniplast samples were not destroyed in the impact test owing to their high elasticity. With increasing rubber content, tensile strength and relative elongation of the material (Fige.2,3) decrease, and the surface of Viniplast becomes uneven and rough, beginning from a rubber addition of 25 - 30%. The temperature dependence of the specific impact strength Card 2/3 87642 Impact-resistant Polyvinyl Chloride 5/191/60/000/012/001/016 B020/B066 of impaot-reeistabt,Viziplast was studied in a rangd-of from -600 to +60"C, and it was found that a Viniplast with 5 gnd 10% PSR exceeds a Vi'niplast from PVC even at a temperature below 0 C. The specific properties of impaot-resistant Viniplast become particularly manifest at room temperatures. The.absolute value of.the.specific impact strength could ,)nly be determined+at temperatures below zero. Table 1 gives comparative data.of this.factor obtained on compositions with 90% PVC and 10%'PSR, and on,PVC samples. The principal physioal and'thermomechanical properties-of impact-rresistant Viniplast, as well as of PVC-Viniplast, are'presented in Table 2. There are 4 figures, 2 tables, and 1 Soviet reference. Card 3/3 83818 S/190/60/002/005/008/015 d.,uv 2 2,0 5 B004/BO67 AUTHORS: Berlin, A. A.,'Jiiogon'kiy, B. I., Parini, V. P. ..;Q - - - TITLE: Production and Properties of Some Aromatic PolymerA PERIODICAL: Vysokomolakulyarnyye soyedineniyav 1960, Vol. 2, No. 59 pp. 689-697 TEXT: In an earlier paper A. A. Berlin and 7. P.-Parini published the synthesis of homologous olyphenyliseries by decomposing bis-diazobenzi- dine or bis-diazobenzidine-3,3'-dicarboxylic acid by means of salts of mc-- novalent copper (Ref. 11). The present paper reports on this reaction and on the properties of the products obtained. The biB-diazo compounds"pere decomposed with an ammoniaoal solution of copper sulfate, which had been stabilized with hydroxylamine hydrochloride. No different results were obtained with air supply or in argon atmosphere. An addition of the di- azo solution to the copper solution, however, yielded products with higher molecular weight than those obtained in the inverse procese. Ana-, lyses of the products obtained are given in Table 1. Nitrogen could nci be completely removed. The chlorine content decreased with increasing Card 1/3 838M Production and Properties of Some Aromatic S/190/60/002/005/008/015 Polymers B004/BO67 molecular weight (Table 2). So, it is probe y b-)und to t e end grOU-D. The following polymer structure is assumed: C- 6H 3- C6H 3- N_ 6H3-y6H --C 1; X k R ;I-V R = -H or -COOH. The content of azo groups increases with increasing length of the chain. The carboxyl group in ortho-position favors the elimination of nitrogen. Fig. 2 shows that the loss in weight on heating (up to 450 cc) attains rapidly a limit for every temperature. The infrared spectra taken with an WKC-11AIKS-11) spectrometer proved the mere para-substltu*.On in the aromatic ring as well as a probably quinoidal structure of the ring and rod form of the molecules. The latter fact explains the anomalous VX viscosity. The spectrum of electron paramagnetic resonance taken with D. G. Semenov's radlospectrometer (of. Ref 18 11) indicates unpaired electrons - nfirm whose concentration is of the order of 10 1019 and co s the radial. character of the reactions. The shortness of the polymer chains obtained is explained by the formation of stable biradicals which, due to the delocalization of unpaired electrons, have only a low reactivity. The formation of such biradicals was proved by reacting polymer3 with F-di- ethinylbenzene at high temperatures. Unmeltable and insoluble products were formed. The magnetic properties and the electrical conductivity of Card 2/3 83818 Production and Properties of Some Aromatic Polymers the polymers will be described later. The authors thank I. A. Blyumenfelld, Yu. Sh. Moshkovski and A. A. Slinkin for studying the spectra and magnetic properties. There are 2 figures, 2 tables, and 19 references: 8 Soviet, 8 US, 2 German, and I Dutch. S/190/60/002/005/008/015 B004/BO67 ASSOCIATION: Institut khimicheskoy fiziki AN SSSR (Institute of Chemical Physics of the AS USSR SUBMITTED: January 18, 1960 Card 3/3 S/190 60/OO2/OG6/O0!/'O',- B01 5YBB064 AUTHORSt Berlin, A. A., Uzina, R. V., Shmurak, 1. L. TITLE: On Some Factors Influencing the Adhesion of Rubber on the Tissue Fiber, Steeped With Latex Albumin Mixtures ~ERIODICALt Vysokomolekulyarnyye soyedin.aniya, 1960, Vol. 2, Nc~. 6_.. PP. 832-837 TEXTt The adhesive power between rubber and tissue is of special importance in the production of tissue-reixiforeed rubber product-, Such as oar tires, bands, assembly lines etc. To ircrease the adhesive power, the ootton- or man-made hber tissue is steeped.with albumin conta4'nAng latex- mixtures in the USSR. A method of producing'a water-soluble mo;ifilc~atlcn of keratin (keratein) from industrial waste products was developed Ref. 6) in the laboratoriya vysokomolekulyarnykh soyedineniy MTIM&P Raboratory of Highmolecular Compounds Mjj.MNZ~,_The waste products are treated with strong reduction-, or oxiaizing agents, with the --S-S~~ cystine bond of the keratin macromolecules being torn; thus, the water- soluble keratein forms. Investigations carried out by the authcrs (Ref. 7) Card 1/3 On Some Factors Influencing the Adhesion S/199(60/002/006/m' -2. of Rubber on the Tissue Fiber, Steeped With BO15/BO64 Latex Albumin Mixtures showed already that keratin,., is a complet;9 substitute for casein that h:15 hitherto been used for the above-mentioned steep solutions, The present paper mentions some of the results obtainod on the behavior of kerptt'n. and other latex albumin mixtures used for tissue steeping. The power of rubber on steeped tissue may be assumed to depend on the of amino acids with polar side chains in i;he albumin molecule., In this respect, keratin does not very much diffe:;- from casein and albumin (Table 1, values of adhesive power between CKU-(SKB-), CKC -,30AM (SKS-Z,OAM-), and HK (natural-) rubber and tissue steepe`a-`w`1'T'F7i.::'Z'N1: keratin and albumin containing mixtures rospectively). Sinoe album,.-a's represent polymeric electrolytes, their properties are influenced by the pE. Experiments showed that an inerease of the pH of the steeping m1Xt*-.XrP_'-, reduces the adhesive power of rubber on steeped tissue. The incra~*~~ in the ionization of the albumin molecules taking place in alkaline was assumed to bring about a directioning of the molecule chal-n and tion of a net structure. These assumptions were confirmed by det~~rm`n-"rg the value b/a (Table 2) (b . longer axis oil the extended mole---,u1_k'G_ a = short axis), as well as by measurements of the flow time (illl Card 2/3 On Some Factors Influencing the.Adhesion S/190/60/002i'006/00'1/012 of Rubber on the Tissue Fiber, Steeped With B015/BO64 Latex Albumin Mixtures on pressure) on casein- and keratin solutions through a capillary, The "longer" the albumin molecule is the longer will the flow time be The poor adhesive power of rubber on tissue steeped with solutions of a highel pH is due to a deterioratitin of the mobility of the "extended" a3birmln molecule. There are 4 figures, 2 tables, and 19, references: 0 Sovit~tl, 4 US, I German, and 1 Austrian. ASSOCIATIONs Moskovskiy tekhnologicheskiy institut myasnay i molochncy promyshlennoBti (Moscow Technological Institute Qf ~he Meat- and Milk Industry). Nauchno-issledovatel'skiy institut shinnoy promyshlennosti (Scientific Research Institute of the Tire Industry) SUBMITTED; January 23, 1960 Card 3/3 X, 87031 S/190J60/002/007/015/017 A020/BO52 AUTHORS% Barkaloy, 1. M.p Berlin A. As Golidanakiy, V. I., Dzantiyevl D. ~A`W TITLE: Radiation Polymerization of Phenyl Acetylene PERIODICAM Vysokomolakulyarnyye soyedineniyav 1960p Vol, 2f Noo 7P PP- 1103-1107 TE XTs Purpos#of this-paper,was thei investigation of kinetics and the mechanism of the radiation polymeris~ation of phenyl acetylene which was initiated by electrons with an energy of 1-5 Nev.T%cirradiation was carried out in special curettes (Pig. I a).'rhe electron beam was introduced through a plane-parallel glass window 0-5 mm, -thick. For accurate thermo- stating within the range of positive'ttemperatures, a different type of euve-tte was used (Fig. ltb). The.teml-eratures of the polymerization were -iq6'.to +850C- The reaition yield was.not higher than 10 - 12%, since in all experiments theinitial stage of~.qolymerization -as investigated. The radiation does was determined,by a ohOnLioal dosimeter (0.02 mole/l of Card 1/4 Blot R is. on Polymerization of- Phe4l iLd I ti 5/190J60/002/007/015/PI7 Acetylene B020/B652 cuso 0.002 mole/l of Peso and 49 49 by the Institut im. L. Ya. Karpova Fe3+ 0,02 1 which was recommended 1 H2SO4) (Institute imeni L. Ta. Karpov). The developing was photometrically examined by a Ot -4 (SF-4) spectro- photometer. The IR spectra of polyphenyl acetylene were studied by Yu. Sh. Moshkovskiy. The polyphenyl agetylene yield rises proportionally to the dose of wide ranges k107 - 10 roentgen) (Fig* 2), Even with the largest doses applied, no noticeable destruction of the developed polymer wa.8 observed. This seems to prove the absence of effective inhibitor additions whose presence would be indicated by the S-shape of the curve. In the presence of atmospheric oxygen, the polymer yield is increased to the 1*5- to 2-fold under otherwise eval conditiors. With-a certain dose# the polymer yield does not depend on :Lt* quaLitity, not even at temperatures near the melting point or when the liquid monomer is exposed to radiation. The dependence of the polymer.yiela'on the qua~tity'of the dose was also investigated (Fig. 2) at 0 and -7800. The extremely low dependence of the polymerization rate of.phenyl acetylene on the temperature is also typical. Experiments were carried out rega:Tding the polymerization of phenyl acetylene in nonane and ethyl aoetateo In these two solvents the Card 2/4 8703L Radiation Polymerization of Phsnyl S/190A0/002/QP7/015/017 Acetylene B020/BO52 polymer yield differell widely from that exp,~.oted on the basIs of the ad- ditivity law (Fig- 3)- A ver.* effective radiation energy transfer (the radiation is absorbed by the solvent molecules) to the phenyl acetylene molecules is observed. Substances with structures of the polyacetylene type have the same properties as aromatic hydrocarL-onsf namely that of taking up.the.energy of ionizing radiation. The laws of phenyl acetylene polymerization in.many respects are specific, sometimes e-ven the opposite of those of the usual radical polymerization. Stimming up one may say that the.polyphenyl.acetylene yield is approximately 8 - 9 molecules when the radiation is 100 ev.: In the liquid phase, polymerization'and initiation rates are proportional.-The activation energy is.as low as approximately 700.kcal/mole. A mechanismi was suggested which explains the unusual results by-the.specific properties of highly conjugated products during the-polymbrization of phenyl acetylene. In these products a strong de- localization of unpaired elements takes place, and the reactivity of .aimilar~molecules is reduced with an increase in their length. There are 3 figures-and 6 referenceei 4 Soviet and 2 US. Card 3/4 Radiation Polymerization of Phenyl S/190/60/02/007/015/07 Acetylene BOZO/BO52 ASSOCIAMONs -Inatitut-khimioheakoy fiziki AN SSSR (Institute of Chemical Physics of the AS-USSR) SUBMITTEDs Marah-26p 1960 Card 4/4 86293 s/190/60/002/008/004/017 B004/BO54 A o ck~ AUTHORS: BerlipL A. At Krofiman, A. G., Yanovskiy, D. M., Kargin, -V. A. TITLE: Modification of Polyvinyl Chloride by Rubbers PERIODICAL: Vyaokomolakulyarnyye soyedineniya, 1960, Vol. 2, No. 8, pp. 1188-1192 TEXT: The authors attempted to make graft copolymars from vinyl chloride and rubbers. In contrast to the unsuccessful copolymerization with the aid of latex reported on in Ref. 2, they used coarsely disperse rubber emul- sions. Photogelatins, Sulfanole, or polyvinyl alcohol were used as emul- sifiers. Copolymerization vas conducted by two methods: 1) swelling or 0 dissolving of the rubber in vinyl chloride at4D-70 C, and subsequent poly- merization in an autoclave after adding ammonium persulfate as initiator; 2) rolling of the rubber with ammonium-persulfate powder at room tempera- ture, ans subsequent copolymerization with vinyl chloride in an autoclave at 60-70 C. Viniplast was made from the reaction products by adding calcium stearate, lead monoxide, Neozone D, and transformer oil, kneading at 155-170 0C, and pressing. The resulting products showed worse physical Card 1/2 86293% Modification of Polyvinyl Chloride by Rubbers S/19 60/002/008/004/017 B004YB054 properties than pure polyvinyl chloride* On the other hand, a joint plasti- fication of polyvinyl chloride (PVC) of the type n�-4 (PF-4) with HK (NK) natural rubber, CKS(SXB) butadiene rubber, CKH (SKI) isoprene rubber, C,KH-26 (SKN-26) butadiene-nitrile rubber, and chloroprene rubber (nairit), led to the following results: PVC combined Content of toughness tensile strength relative elonga- with-. rubber, % - k&-cm4cm2 kgjcm2 tion, % (without rubbe r) 0 8.6 550 82 natural rubber 10 9-7 354 4-4 butadiene rubber 10 6-7 350 5-8 is6prene rubber 10 3.7 357 9.7 hairit 10 16-5 437 81.5 butadiene-nitrile rubber - - 10'' 34.6 551 100 Rubbers with marked polarity (nairit ' SKN-26) showed double to fourfold toughness. Hydrogen bonds are likely to form between the polar rubber and PVC. There are 2 figures, 2 tables, and 7 references: 1 Soviet, 4 US, 1 Belgian, and 1 French. SUBMITTED: March 21, 1960 .Card 2/2 BIMLIN A.A. - S L.Y.; 73DOSIM, B.I.; YAMVSKIY, D.M. R.- -A I I STUM Graft copolymerizarion. Pbrt 6: Fractionation of the products from1he graft polymerization of -Vinyl choloride with the butyl methaerylate-mothaerylic acid copolymer. Vysokom. eoed. 2 no.8:1227-1233 Ag 160. (MMA 13:9) (Ithylene) (Methaorylic acid) Y 85482 5/190/60/002/009/017/019 S".1810A 4*~06 2103,2103 B004/BO6O AUTHORS, Berlin, A. A., Dubinskaya, As M. TITLE: Studies in the Field of the Mechanochemistr of Polymeric -Substances. X. Initiation of PollMerizatio3with Radicals Forming bn the Destruction of Macromolecules by Means of ultrasonics PERIODICAL., Vysokoniolekulyarnyye,soyedinenivA,, 1~60, Vol. 2, No. 9, PPo'1426-101 ,TEXT: In contrast to otbw.-papers (Refs. 1, 2, 5), the authors studied the .ultrasonic destruction and the formation of copolymers in anhydrous medium, solutions Qf#polymethvl methaerylatel(PMMA) in acrylonitrilMmethyl methacrylate, and Styr, ene.9 Tne molecular weight of PMMA (visco6imetrically determined in benzene ) was 3,1609000. The solution of the polymer in the monomer was exposed in argon atmosphere to ultrasonic radiation of 1500 kc/ see and a calorically measured intensity of 5 - 50 w/om2. The apparatus had been described earlier (Refs. 69 8). Since the temperature Card 1/4 83482 Studies in the Field of tlxe.Mechanochemistry S/190/60/002/009/017/019 of Polymeric Substances'...X. Initiation;of B000060 Polymerizati~on With Radicals Forming on the Destruction of Macromolecules by Means of Ultrasonics rose to 50 OC, cdoling spells were put in. The degree of polymerization was determined on the vtrength of changes in the refr&tive index of the solution, on the strength of increace in the polymer weight, and - in acrylonitrile - on the strength of the nitrogen content. For control, L)~ monomers alone were acoustically irradiated, and no polymerization occurred after 30 min either. Acoustical irradiation of 1-2% PMMA Solu- ti6ne in the monomers always gave rise to polymerization, the rate of which decreased in the order aorylonitrile - methyl methacrylate styrene (Tablel). The reaction of PMMA with acrylonitrile was examined more olose- ly. Table 2 gives the action of various ultrasonic-intensities, Table 3 supplies the experimental results at 7 w/cm2, 1-5 min irradiation, and a 3 min pause. A block copolymerization of PMMA with polyacrylonitrile (PAN) was establishedo The infrared spectrum of the-oopolymer with a ratio PMMA/PAN - 30/70 exhibited both bands of the nitrile group and of Card 2/4 83482 Studies in the Field of the Mechanochemistry S/190/60/002/009/017/019 of Polymeric Substances. X. Initiation of B004/BO60 Polymerization With Radicals Forming on the Destruction of Macromolecules by Means of Ultrasonics the eater group. The viscosity and the Huggins constant were also de- termined (Table 4). The thermomechanical curve (Fig. 4) for PWAA/PAN - 47/53 and for a mixture of the polymer components in the same ratio-shows that the copolymer has a branched, partly arose- linked structure. As in the Polymerization bZ means of gamma IrayiO an after-polymeriziation occu;f-ed here as weii, especial.1y K; WTT-gnr-11 temperatures. There are I figure, 4 tables, and 12 references: 4 Soviet, 2 US$ 3 British, and 3 German. ASSOCIATION: Institut khimicheakoy fiziki AN SSSR (Institute of Chemical Physios of the AS USSR) Card 3/4 Studies in the Field of the Mechanochemistry of Polymeric Substanceso X& Initiation of Polymerization With Radicals Forming on the Destruction of Macromolecules by Means of Ultrasonics: SUBMITTEDt April 22, 1960 8 482 S/190/60 002/009/017/019 B004/BO60 k~ Card 4/4 S11901601002101010091026 B004/BO54 AUTHORS: Liogon'kiy, B. I., Lyubchenko, L. S., Berlin, A. A., Blyumenfelld, L. A., and Parini, V. P. TITLE: Polymers With Conjugate Bonds and Reteroatoms in the Con- junction Chain. XI. The Spectra of Electron Paramagnetic Resonance of Linear Aromatic Polymers PERIODICAL: Vysokomolekulyarnyye soyedineniya, 1960, Vol. 2, No. 10, pp. 1494-1499 TEXT: In previous papers (Refs. 1, 2), the authors obtained aromatic polymers by reaction of bia-diazotized benzidine, benzidine-3,31-dicarb- oxylic. acid, and 0-toluidihe with monovalent copper-sa ts; the following structural formula is given: R C1 ~_,L~ N2_ C1 (polymer I: R - H; polymer II: R- COOH; polymer III-- R = CH The electron paramagnetic spectra (epr) were taken (Figs. 1-3) o1 these poly- Card 1/2 Polymers With Conjugate Bonds and Heteroatoms in S119 60/002/010/009/026 the Conjunction Chain. X1. The Spectra of Elec- B004YB054 tron Paramagnetic Resonance of Linear Aromatic Polymers mers and the copolymer from I and p-diethinyl benzene, and the concentra- tion of the nonpaired electrons was found to be 1018 - 1019 in 1 g of substance (Table) by comparison with the epr spectrum of diphenyl-picryl hydracyl as a standard. All epr spectra showed a signal with g-factor 0 2.00 which remains unchanged on heating to 300-3500C and cooling to 77 K, and-is interpreted as a signal of the conjugate bonds. The broader epr signal, which is superposed to this signal-in unheated samples$ could not be analyzed because of the superposition, and is interpreted as a signal of less active, free radicals with localized free valency. The signal ap- pearing additionally in the insoluble fraction with g-factor 2.05, which disappears on dissolution, is ascribed to low-molecular particles. The stability of the epr spectrum in the vide temperature range indicates the paramagnetic character of at least part of the polymer. There are 3 figures, 1 table, and 9 references: 8 Soviet and 1 US. ASSOCIATION: Institut khimicheakoy fiziki AN SSSR (Institute of Chemical Physics of the AS USSR) SUBMITTED: April 25, 1960 Card 2/2 F(I b 7~., 86327 S/190/60/002/012/014/019 B017/BO78 AUTHORS: Berlin A A , Kronman, A. G., Yanovskiy, D. M., Kargin,V.A. TITLE: New Method of Obtaining Graft Copolymers PERIODICAL: Vysokomolekulyarnyye soyedineniya, 1960, Vol. 2, No. 12, pp. 1839 - 1844 TEXT: A new method of obtaining graft copolymers by interaction between the polymers is suggested by the authors. This method permits to modify halogen-containing polymers with polymers having nitrogen-containing heterocycles. A case in point for such a reaction is the modification of PVC with methylvinylpyridine rubber under the formation of graft copoly- mers which are salts of quaternary polymer bases. Vinyl plastics obtained from such polymers have an impact strength ten times as high as that prepared solely from polyvinylehloride. Fig.1 illustrates the temperature dependence of some thermomachanical properties of some polyvinyl plastics. The two-stage formation of trimers is explained. Fig.2 illustrates the influence of the rubber content on the properties of polyvinyl plastics. Card 1/2 8632 New Method of Obtaining Graft Copolymers S~19Y60/002/012/014/019 B017 B078 Fig-3 shows the vitrification temperature of polyvinyl plastics as a function of the admixtures. It is demonstrated that the thermal stability of polyvinyl plastics is not impaired by a methylvinylpyridine rubber content up to 25%. The method auggested here may be applied to vulcanize various halogen-containing polymers with methylvinylpyri-dine rubber. There are 3 figures and 13 references: 9 Soviet and 4 US. SUBMITTED: May 24, 196o Card 2/2 69009 AUTHORS: Berlin A.A., Xatveyevat N*G% S40 11460402910310011004 TITLE: Polymeric Cholute Compounds PERIODICAL: Uspokhi khi=:Li, 1960p Vol 290 Nr 3, pp 277-297 (USSR) ABSTRACT: The autbors describe now ways of preparing polymeric materials with properties required for technical development. one of ihose is the syntheeis of chelate compounds. Cholates are known.to be resistant to acids and bases and to agents which react with free metals (Ref 1). Many 0slates are extremely stable at comparatively high tempera- turea%14000 and higher). Groups which are able to form chelate rings Tlwh--t io' be termed chelating groups. Provided they are suitably arranged in the molecule, electron donor groups contained in cholating groups can form cholato rings in the presence of olootrophilic ions or atoms. The stability of these oholate rings is much increased if these donor groups are in conjugation to each other. Examples are given on p 278. The resistance of those oholate rings to chemical agents and beat is determined by a number of factors: the structure and chemical nature of the cholating group, the ring tensiong the number of rings connected with the corresponding ion, the elcatron structure of the complezing ion. In most cases, ohelates are highly V