Abstracts

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¹2, 2012

Glass Transition Temperature and Structure of Amorphous­Crystalline Butadiene Rubbers –Makhiyanov N., Temnikova E.V. (P. 2).

Effect of structure of butadiene rubbers (including that of high cis­1,4 units content) on their glass transition temperature has been studied by means of NMR, DSC, and GPC. Connection with crystallization ability is shown.

Key words: polybutadiene, glass­transition temperature, crystallization, melting, microstructure, NMR, DSC, GPC.

High Vinyl Chlorinated Polydienes. Vulcanizates Based on This Rubbers – Otvalko Zh. A., Mironyuk V.P., Tverdov A.I., Kuz’min S.V., Trifono­

va E.V. (P. 8).

Chlorination and hydrochlorination of high­vinyl polydienes by means of dichlorocarbene addition to double bonds in a two­phase system in presence of interphase transfer catalyst is described. Chlorinated polydienes of 2,2 – 30 % mass. chlorine content have been obtained. Vulcanizates have been prepared and their mechanical properties studied.

Key words: chlorinated polydienes, chlorination, hydrochlorination, mechanical properties

Effect of Compatibilizers on an Enhancement of Interphase Interactions in Blanded Termoplastic Elastomers – Perestoronina Z.A., Ableev R.I., Baranets I.V., Kurlyand S.K. (P. 13).

Function of compatibilizers in the adhesiveness enhancement in the rubber­plastic contact boundary under simulation conditions is shown.

Key words: blended thermoplastic elastomers, compatibilizers, solubility parameters, mechanical properties, simulation.

Modification of Industrial Urethane Prepolymers by Tetrahidroxietylsubstituted Ureas – Ignat’ev V.A, Kochanova M.N, Akakeeva T.N., Koltsov N.I. (P. 16).

The possibility of the use of tetrahidroxietylsubstituted ureas (bastd on aliphatic diisocyanates and diethanolamine) together with 4,4 ‘­metilenbis

(o­hloranilinom) at solidification of industrial isocyanatcontaining prepolymers SKU­DF­2 and SKU­PFL­100 as modifiers and regulators

of physical and mechanical properties of polyurethaneureas is studied.

Key words: urethane prepolymers, polyurethaneureas, solidification, modification, mechanical properties

Some Special Feature of Cross­Linking and Destruction of Polydienes – Shutilin Yu.F., Karmanova O.V. (P. 19).

An approach to the description of cross­linking and destruction of polydienes is presented. Critical molecular weight of the chain part providing the possibility of chemical reactions of vulcanization and oxidation is evaluated.

Key words: polydienes, vulcanization, destruction

Analysis of Methods of Calculation of Activation Energy of Termodestruction of Elastomer Materials According to the Data of Dynamic Thermogravimetry – Petryuk I.P., Gaidadin A.N., Kablov V.F., Malinovskaya L.V. (P. 22).

Comparison of some methods of calculation of kinetic parameters of polymers thermodestruction based on the data of thermogravimetry is presented. Coats – Redfern method is shown to be most acceptable for elastomers.

Key words: thermal analysis, dynamic thermogravimety, thermodestruction, kinetic parameters

Effect of Anionic Emulsifier on Ozone Resistance of Vulcanizates Based on Butadiene Acrylonitrile Rubbers – Sokolova L.V., Matukhina E.V. (P. 25).

Dependence of the ozone resistance of vulcanizates based on BNK on double bonds content and deformation is shown. Surfactants addition results usually in decrease of ozone resistance of vulcanizates under stress. Some conclusions about rubber structure in surfactants presence are presented.

Key words: BNK, ozone resistance, surfactant, rubber structure

Effect of Surfactants on Structure of Vulcanizates Based on Butadiene Acrylonitrile Rubbers – Sokolova L.V., Matukhina E.V. (P. 28).

X­ray diffraction under small and large angles of BNK and zinc stearate has been studied. Conclusions about formation of liquid crystals (LK) of zinc stearate in presence of surfactant and about effect of its orientation on decrease of ozone resistance under deformation are presented. Involvement of zinc stearate in deformation of rubber chains is shown.

Key words: BNK, zinc stearate, surfactant, X­ray diffraction under small and large angles, LK structure, ozone resistance

On the Problem of Activating Action of Shungite at Sulfur Vulcanization of Elastomers – Shershnev V.A., Kuz’micheva G.M., Reznichenko S.V., Astahova E.A., Glebova Yu.A., Pyzhonkova V.V. (P. 31).

The phase composition of shungite was studied by x­ray data. Among the identified compounds the bulk of constitute graphite­like carbon, sili­

con oxide and aluminum silicate. So the activating action of shungite at sulfur vulcanization may be due to its adsorption and chemisorption activity with respect to sulfur and its complexes with accelerators.

Key words: shungit, x­ray data, sulfur vulcanization

Tests of Epoxidated Sunflower Oil as Plasticizer­Modifier of Carcass Rubber Comounds – Miloslavskiy D.G., Fadeeva T.V., Mohnatkin A.M., Rahmatullina A.P., Ahmed’yanova R.A., Liakumovich A.G. (P. 33).

Sunflower oil of different degree of epoxidation is tested as a softeners of carcass rubber comounds. Their effect as modifiers is considered.

Key words: carcass rubber comounds, sunflower oil softener, epoxidation, modification

Production and Properties of Dispraktol KS as Substitute of Colophony – Puchkov A.F., Olefir A. I., Golub’ A.V., Kablov V.F. (P. 36).

Production of Dispraktol KS as substitute composition of colophony is presented. It contains liquid eutectic melt of amine­type compounds. Dispraktol melt provides long­term stickiness to rubber half­products.

Key words: colophony, dispraktol, stickiness

Some Views on Mechanism of Activator Effects. Part 2 – Shershnev V. A. (P. 39)

Review of papers devoted to formation of networks in rubbers through topochemical reactions of vulcanizing group components with the participation of polydiene macromolecules units

Key word: rubbers, activators, sulfur vulcanization, adsorption, topochemical reactions, chlorine containing agents, shungit, relaxation spectrometry.

80 Anniversary of VIAM – Demonis I.M. (P. 42).

Information about history, achievements, development and prospects of All­Russian Scientific­Research Institute on Aviation Materials.

Key word: aviation materials

We are 70. We are Full of Powers, Plans, and Hopes – Galimov R.R. (P. 46).

Information about history, achievements, problems and development of JSC “KVART” former Kazan Plant of Rubber Technical Goods.

Key word: Rubber technical goods

When Foam Go Up (Polyurethanes 2012) – Ryazanov V.A. (P. 47).

Review of papers and information about Conference “Polyurethanes 2012”, organized by company Creon (Moscow, Hotel «Ritz­Carlton», 30.01.2012).

Key words: polyurethanes, prospects of science and industry






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