以二乙醇二甲醚(2G)为调节剂的丁二烯-异戊二烯共聚合(英文)  

Butadiene-isoprene copolymerization with diglycoldimethyl ether as modifier

作　　者：任艳[1] 王玉荣[1] 张春庆[1] 刘海峰[1] 郑仰才[1] 任春晓[1] 

机构地区：[1]大连理工大学高分子材料系,辽宁大连116012

出　　处：《合成橡胶工业》2006年第2期146-146,共1页China Synthetic Rubber Industry

摘　　要：以正丁基锂(n-BuLi)为引发剂,2G为调节剂,环己烷为溶剂,在50℃时考察丁二烯-异戊二烯共聚合。结果表明,当2G/n-BuLi(摩尔比)不大于0.5时,随着2G加入量的增多,聚合反应速率明显加快;当2G/n-BuLi(摩尔比)大于0.5时,随着2G加入量的增多,聚合反应速率略有增加。由K-T法求出丁二烯和异戊二烯共聚的竞聚率表明,随着2G/n-BuLi(摩尔比)增加,丁二烯单体竞聚率增大,而异戊二烯单体竞聚率减小。同时还考察了聚合物的微观结构。Polymerizations of conjugated diolefins are interesting topics in rubber and thermoplastic elastomer industries. Especially the copolymeriration of butadiene（Bd） and isoprene （Ip） takes an important place in tire. Many investigations on rare earth catalysts system for the copolymerization have been reported, but rarely reported on that of using alkyllithium as initiator. In the research, it is reported a study on the copolymerization of Bd and Ip at 50 ℃ in the presence of diglycoldimethyl ether（2 G）and n-BuLl as initiator, cyclohexane as solvent.

关 键 词：丁二烯 异戊二烯 共聚合 二乙二醇二甲醚 微观结构 

分 类 号：TQ316.3[化学工程—高聚物工业]