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.
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2009年第2期81-84,94,共5页
Journal of Anhui University(Natural Science Edition)
关键词
原子转移自由基聚合
两亲性嵌段共聚物
活性聚合
atom transfer radical polymerization
amphiphilie block eopolymer
living polymerization
