两亲性嵌段共聚物MPEG-b-PS的合成与表征  

Synthesis and characterization of amphiphilic diblock copolymer MPEG-b-PS

作　　者：王慧庆[1] 黄海琴[1] 王嵩[1] 聂康明[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2009年第2期81-84,94,共5页Journal of Anhui University(Natural Science Edition)

摘　　要：以单分散的甲氧基聚乙二醇和α-溴代异丁酰溴为原料,通过酰溴化反应制备了大分子引发剂MPEG-Br,并以此为引发剂,CuCl/2,2’-联吡啶为催化体系,采用原子转移自由基聚合(ATRP)方法制得了分子量可控且分子量分布窄的两亲性嵌段共聚物,通过1H-NMR、FT-IR、GPC等测试手段对其结构进行了表征,同时对其反应活性进行了确认.Amphiphilic block copolymers with different molecular weight and low polydispersities was synthesized by atom transfer radical polymerization （ATRP） of styrene using MPEG-Br as a maeroinitiator, which was obtained by easterification of poly （ ethylene glycol） methyl ether with 2-bromoisobutyryl bromide. Its structure and ＂living＂ characterization were characterized by ^1H-NMR,FT-IR,GPC.

关 键 词：原子转移自由基聚合 两亲性嵌段共聚物 活性聚合 

分 类 号：O631[理学—高分子化学]