TMEDA存在下的异戊二烯阴离子均聚合动力学研究  

Study on kinetics of anionic polymerization of isoprene in the presence of TMEDA

作　　者：田福学[1] 张春庆[1] 曹民[1] 王润[1] 杨海涛[1] 方永刚[1] 

机构地区：[1]大连理工大学化工学院高分子材料系,辽宁大连116012

出　　处：《弹性体》2001年第2期5-9,共5页China Elastomerics

摘　　要：研究了以四甲基乙二胺 (TMEDA)为调节剂体系的异戊二烯阴离子均聚合动力学。获得了不同n(TMEDA)∶n(Li)及聚合温度对动力学的影响情况。从理论上对聚合机理进行了推导和论证 。Using N,N,N',N' tetramethylethylenediamine(TMEDA) as polar additive,the kinetics of anionic polymerization of isoprene initiated with n BuLi in cyclohexane was studied.The effects of TMEDA/Li(mole ratio) and reaction temperature on the polymerization rate were observed.The polymerization mechanism was investigated in theory and confirmed by experiments.The polymerization active energies in different conditions were obtained by Arrhenius equation.

关 键 词：异戊二烯 阴离子聚合 四甲基乙二胺 动力学 TMEDA 双配位基强络合剂 

分 类 号：TQ333.3[化学工程—橡胶工业]