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Synthesis and performance of miktoarm star copolymers of styrene and butadiene

ISSN号：1000-890X
期刊名称：《橡胶工业》
时间：0
分类：O636.111[理学—高分子化学;理学—化学]
作者机构：[1]College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China, [2]Research Institute of Highway Ministry of Transport, Beijing 100088, China, [3]The Thirty Three Research Institute of China Electronics Technology Group Corporation, Taiyuan 030006, China
相关基金：Supported by the National Natural Science Foundation of China（50573005）

作者：张海燕[1,2], 可勇[3], 姚明[1], 赵素合[1], 张兴英[1]

中文摘要：

A novel multifunctional macromolecular organolithium initiator (PD-Sn-(RLi)3) was prepared via living anionic polymerization and used for the synthesis of miktoarm star copolymers in cyclohexane. The average molecular weight, polydispersity index, microstructure and unit composition of the miktoarm star copolymers were characterized with GPC and 1H-NMR. Performances of the miktoarm star styrene-butadiene rubbers were investigated in comparison with those of the blend rubbers such as the tin-coupled star-shaped random copolymers of styrene-butadiene rubber(S-SBR)/natural rubber(NR) blend rubber and S-SBR/Cis-1, 4-polybutadiene rubber (Cis-BR) blend rubber.

英文摘要：

A novel multifunctional macromolecular organolithium initiator （PD-Sn-（RLi）3） was prepared via living anionic polymerization and used for the synthesis of miktoarm star copolymers in cyclohexane. The average molecular weight, polydispersity index, microstructure and unit composition of the miktoarm star copolymers were characterized with GPC and 1H-NMR. Performances of the miktoarm star styrene-butadiene rubbers were investigated in comparison with those of the blend rubbers such as the tin-coupled star-shaped random copolymers of styrene-butadiene rubber（S-SBR）/natural rubber （NR） blend rubber and S-SBR/Cis-1, 4-polybutadiene rubber （Cis-BR） blend rubber.

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