摘要
用阴离子聚合的方法合成了星型结构的高苯乙烯橡胶,对高苯乙烯橡胶的聚合反应动力学过程进行了研究,求得不同聚合温度、不同引发剂浓度下假一级表观增长反应速度常数kp"。并根据不同温度下的kp",求取了高苯乙烯橡胶聚合表观增长活化能Ep’=56.7 kJ/mol,高苯乙烯橡胶聚合反应动力学方程表明,聚合反应速率与单体浓度一次方、引发剂浓度1/2次方成正比关系。
A star high styrene rubber was synthesized by anionic polymerization,and polymerization kinetics of high styrene rubber was studied.First-order reaction rate constant kp＂ of different temperatures,different initiator concentration were calculated.Growth activation of high styrene rubber Ep＇=56.7 kJ/mol was got according to different kp＂.Polymerization kinetics equation proves that reaction rate is proportional to monomer concentration,the 1/2 th power of initiator concentration.
出处
《应用化工》
CAS
CSCD
2010年第6期883-885,共3页
Applied Chemical Industry
关键词
阴离子聚合
高苯乙烯橡胶
反应动力学
anionic polymerization
high styrene rubber
reaction dynamics
