苯乙烯可控阳离子聚合的新引发体系  

New Initiating System for Controlled Cationic Polymerization of Styrene

作　　者：刘盈海[1] 张建平[1] 张荣月[1] 史增谦[1] 边瑞环[2] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002 [2]河北农业大学理学院,河北保定071001

出　　处：《河北大学学报（自然科学版）》2004年第6期605-610,共6页Journal of Hebei University(Natural Science Edition)

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.FeCl_2/benzeneacetic acid as initiating system, acetone as solvent, controlled cationic polymerization of styrene has been studied. The results show that FeCl_2/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.

关 键 词：可控阳离子聚合 活性阳离子聚合 氯化亚铁 二苯羟乙酸 苯乙烯 

分 类 号：O631.5[理学—高分子化学]