用1G/2G复合调节剂进行丁二烯阴离子聚合的研究

STUDY ON ANIONIC POLYMERIZATION OF BUTADIENE WITH COMPOSITED MODIFIER 1G/2G

在环已烷中，以正丁基锂引发的丁二烯阴离子聚合，采用１Ｇ／２Ｇ复合调节剂，研究了１Ｇ／２Ｇ复合调节剂对聚丁二烯微观结构及聚合动力学的影响。实验结果表明：１Ｇ与２Ｇ复合调节剂对聚丁二烯微观结构的调节能力强于１Ｇ或２Ｇ单一调节剂。聚合速度与单体浓度呈一次方关系，并分别求得不同温度下的单体一级反应速度常数（Ｋ″ｐ）及表观增长活化能（Ｅ′ｐ）。

The effect of Composited modifier 1G/2G with n-BuLi in cyclohexane for butadiene anionic polymerization on microstructure and kinetics of polybutadiene was studied.The experiments show that 1G/2G is effective for polybutadiene production. Its apparent rate constents and activation energy of propagation in different temperature and different proportion of 1G/2G were got through polymerization kinetics.