Abstracts

№6, 2011

Effect of Nature and Concentration of Mixtures of Emulsifiers and Initiators on the Polymerization Rate of Monomers of Poor Solubility in Water (by the Example of Chloroprene and Styrene) – Zhachenkov S.V., Gritskova I.A., Lobanov A.N., Lobanova N.A. (P. 2)

Kinetics of polymerization of chloroprene and styrene initiated by different initiators in presence of mixtures of different surfactant has been studied. Results obtained are compared with the data for pure surfactants.

Key words: kinetics of polymerization, styrene, chloroprene, mixture of surfactants.

Effect of Electron-Donor Additives on the Microstructure of Styrene, Isoprene and Butadiene Terpolymer – Budeeva A.V., Rachmatullin A.I., Kazakov U.M., Aksenov V.I., Galibeev S.S., Volfson S.I. (P. 4)

Effect of different electron-donor additives (alkali metals alcoholates, tertiary diamines, ethylene glycol ethers) on microstructure of styrene, isoprene and butadiene terpolymer (SIBR) have been studied by means of IR and NMR. The possibility to control the content of units of different microstructure in component of SIBR is shown.

Key words: anion copolymerization, styrene, isoprene and butadiene terpolymer, electron-donor additives, microstructure, IR, NMR

The Possibility of Chemical Modification of 1,2-Syndiotactic Polybutadiene with the Use of Metathesis Process – Yakimov R., Ashirov R., Bogomolova M., Galibeev S. (P. 7)

The possibility of chemical modification of 1,2-Syndiotactic Polybutadiene by means of metathesis with the low molecular nonsaturated substances, styrene in particular is studied. Low degree of cross-metathesis and destruction of rubber in this process are shown.

Key words: methatesis, methatetical destruction, syndiotactic polybutadiene

Structural and Processing Aspects of Producing of Blended Thermoplastic Elastomers – Perestoronina Z.A., Baranets I.V., Kurlyand S.K., Ableev R.I. (P. 11)

Complex of structural and processing methods to produce thermoplastic elastomer blends, Polypropylene and butadiene acrylonitrile rubber in particular is developed. The possibility of variation of their functional behavior by means of the selection of rubber compatibilizers according their solubility parameters is shown.

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

Dielectric Spectroscopy for Studying Structure and Properties of Thermoelastoplastic Compounds – Ableev R.I., Valiev A.R., Perestoronina Z.A., Kurlyand S.K. Ramsh A.S., Baranets I.V., Gimaev R.N. (P. 14)

Experimental data have been presented on the use of dielectric relaxation spectroscopy for studying the structure and properties of dynamically cured blends of polypropylene with ethylene-propylene-diene rubber.

Key words: thermoplastic elastomers, dynamically cured thermoplastic elastomers, dielectric relaxation spectroscopy.

Development of Dynamic Thermoplastic Rubber Based on Chlorosulfonated Polyethylene – Safronov S.A., Gaidadin A.N., Navrotskiy V.A, Zarud-niy Ya.V. (P. 15)

Dynamic thermoplastic elastomers based on chlorosulfonated polyethylene and low density polyethylene have been produced. Compatibility of polymers is evaluated. Rheological and mechanical properties as well as swelling and DTA data of elastomers are presented.

Key words: dynamic thermoplastic elastomers, chlorosulfonated polyethylene, rheological and mechanical properties, swelling, DTA

Structure and Properties of Polidienurethan Elastomers Based on Prepolymer Oligodiendiol “Krasol NN-22” – Nistratov A.V., Medvrdrv V.P., Pylnov D.V., Gugina S.Yu., Titova E.N., Petrosyan E.V., Rlimov V.V. (P. 17)

Effect of the hydroxyl curing agent on structure, mechanical, dynamic, hysteresis and relaxation properties of materials based on the prepolymer oligodiendiol brand “Krasol NN-22” have been studied.

Key words: polidienurethan elastomers, hydroxyl curing agent, prepolymer.

Effect of polyethylene on the rate of oxidation of butyl rubber with oxygen – Markov V.V. Monakhova T.V. Kolesnikova N.N. Popov A.A. Reznichenko S.A. Kornev A.E., Kukushkin Yu.V. (P. 21)

Oxidation of model row binary blends of butyl rubber with polyethylene has been studied. Blends of different PE content are produced in Brabender-mixer at 170 °C. The decrease of oxidation rate on 32-47% at 30-40% of PE content is shown. The changes of structure of blends are under discussion.

Key words: butyl rubber, polyethylene, oxidation, structure of blends

On the difference in the structure of butadiene acrylonitrile rubbers – Sokolova L.V., Matukhina E.V. (P. 23)

Structure of butadiene acrylonitrile rubbers of different types and acrylonitrile content has been studied by means of IR and X-ray diffraction as well as thermomechanic measurements. The cause of the difference in structure and properties between SKN and BNKS are under discussion.

Key words: butadiene acrylonitrile rubbers, structure, IR, X-ray diffraction, thermomechanic measurements

Structure and Some Properties of SKI-3 after Mechanical Activation – Galimova E.M., Dorozhkin V.P. (P. 27)

Structure of isoprene rubber SKI-3 after mechanical activation has been studied by means of IR, NMR, DSC and EPR. Decrease of the content of 1,4-cis and increase of 1,4-trans and 1,2 units as a result of activation were shown.

Key words: isoprene rubber, mechanical activation, microstructure, IR, NMR, DSC, EPR.

Processing properties of rubber compounds containing derivatives of tertiary N,N’- dioxipropylated aromatic amines – Ionova N.I., Zemskii D.N., Chirkova Yu.N. (P. 32)

Effect of oxipropylated aromatic amines on processing properties of some tire rubbers compounds has been studied. The use of new stabilizers didn’t effects, in some cases even improve, processing properties of row compounds and mechanical properties of vulcanized rubbers.

Key words: stabilizers, tire rubbers, processing and mechanical properties

Risky Area at Conveyer Belts Service – Golikov G.F., Ryabov D.V. (P. 34)

Analysis of defects as a result of conveyer belts service is presented. Critical data of mechanical properties and belts dimensions form the risky area. In these cases the prolongation of service is inefficient and hazard.

Key words: conveyer belts, service conditions

New Silica-to-Rubber Coupling Agents and the Ways for Increasing of their Efficiency – Kandyrin K.L., Myasnikova N.S. (P. 36)

Review of papers devoted to properties of new silica-to-rubber coupling agents and its use in rubber compounds for tires

Key words: silica, silica-to-rubber coupling agents, tire rubbers

iCOM® – Integrated continuous mixing and straining at extrusion – Skiba O., Grepp D. (P. 41)

New equipment for integrated continuous mixing on the second mixing stage by VMI HOLLAND – AZ EXTRUSION is presented.

Key words: processing equipment, continuous mixing, second mixing stage