Copolymerization of butadiene and isoprene with TMEDA as modifier

Zhang Chunqing（College of Chemical Engineering, Dalian University of Technology,Dalian 116012, China）　
Liu Lian（College of Chemical Engineering, Dalian University of Technology,Dalian 116012, China）　
Wang Yurong（College of Chemical Engineering, Dalian University of Technology,Dalian 116012, China）　

Copolymerization of butadiene and isoprene with TMEDA as modifier

张春庆　 刘炼　 王玉荣　

摘　要：以正丁基锂(n-BuLi)为引发剂,N,N,N',N＇-四甲基乙二胺(TMEDA)为调节剂,环己烷为溶剂,通过负离子聚合制备了丁二烯和异戊二烯的共聚物.结果表明,随着TMEDA用量的增加,聚合速度加快,丁二烯单体竞聚率增加,异戊二烯单体竟聚率减少,二者差值逐渐增大,在TMEDA/n-BuLi(摩尔比)不小于0.8时,这种变化趋势变缓,表明共聚物分布不均匀程度增加.
关键词：丁二烯;异戊二烯;共聚合;N,N,N＇N＇-四甲基乙二胺
CLC Number：TQ33　Document ID：A

References：

［1］Tian Fuxue, Zhang Chunqing. The progress in the synthesis of integral rubber SIBR[ J]. Polymer Materials Science and Engineering, 2001, 17(6) :19
［2］Tian Fnxue. General study on system in solution integral rubber SIBR[ D]. Dalian: Dalian University of Technology,2001

Manuscript Received：2003年6月18日

Published：2003年11月15日