Polymerization of butadiene catalyzed by a cobalt-containing catalyst in aliphatic media View Full Text


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Article Info

DATE

2006-10

AUTHORS

O. K. Sharaev, N. N. Kostitsyna, N. N. Glebova, G. N. Bondarenko, V. A. Yakovlev

ABSTRACT

The polymerization of butadiene catalyzed by the preformed Co(2-ethylhexanoate)2-Et3Al2Cl3-isoprene (a molar ratio of 1: 20: 20) catalytic system in toluene, cyclohexane, and hexane has been studied. In toluene, the catalyst demonstrates high activity and stereospecificity and yields a high-molecular-mass polymer. In cyclohexane and hexane, the catalyst has a high activity but affords polymers with lower contents of 1,4-cis-units and reduced intrinsic viscosities. The addition of EtAlCl2 and/or a decrease in the polymerization temperature make it possible to obtain polybutadiene containing more than 96% 1,4-cis-units and an acceptable intrinsic viscosity (2.0–2.8 dl/g) in the nonaromatic solvents as well. More... »

PAGES

274-276

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1560090406090120

DOI

http://dx.doi.org/10.1134/s1560090406090120

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1022240684


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