【摘要】 以FeCl2与二苯羟乙酸为引发体系,在加入丙酮作为引发体系的络合溶液后,对苯乙烯进行了可控阳离子聚合反应研究.结果表明:FeCl2/二苯乙醇酸体系可以有效地控制苯乙烯阳离子聚合的相对分子质量及其分布(1.2～1.5),聚合物的数均相对分子质量随单体转化率的提高而线性增加.该体系是一种新型的可控阳离子聚合引发体系.更多还原

【Abstract】 FeCl₂/benzeneacetic acid as initiating system, acetone as solvent, controlled cationic polymerization of styrene has been studied. The results show that FeCl₂/benzeneacetic acid is particularly effective initiating system for controlled cationic polymerization of styrene. Well-defined polymer with low polydispersity （（1.2<M_w/M_n<1.5）） was obtained. The number-average molecular weight of polymers increases linearly with monomer conversion.更多还原