分子量规整聚p-乙烯基苯甲酸及苯乙烯p-乙烯基苯甲酸两嵌段共聚物的合成  

SYNTHESIS OF A WELL-DEFINED POLY(p-VINYL BENZOIC ACID) AND ITS DIBLOCK COPOLYMER WITH STYRENE

作　　者：魏柳荷[1] 朱明强[1] 张昕[1] 杜福胜[1] 李子臣[1] 李福绵[1] 

机构地区：[1]北京大学化学与分子工程学院高分子科学与工程系,北京100871

出　　处：《高分子学报》2002年第1期123-126,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金资助项目 (基金号 2 9992 5 90 4)

摘　　要：To avoid the damage to catalytic system in ATRP by the carboxyl groups in vinyl benzoic acid, a well defined poly( p vinyl benzoic acid) was synthesized via ATRP in the tertiary butyl ester form. The ATRP of t butyl p vinyl benzoate ( t BVB) was studied kinetically. The results showed that t BVB can be polymerized in a controlled way by ATRP. It was found that the polymerization rate of t BVB is much faster than that of St, meaning that the electron withdrawing ester group affects the polymerization obviously. Well defined diblock copolymers of St and t BVB were prepared by using bromo terminated PBVBs as macroinitiators via ATRP. After removal of the t butyl group by hydrolysis, well defined amphiphilic diblock copolymers of styrene and p vinyl benzoic acid (PSt b PBVA) were obtained.To avoid the damage to catalytic system in ATRP by the carboxyl groups in vinyl benzoic acid, a well-defined poly(p-vinyl benzoic acid) was synthesized via ATRP in the tertiary butyl ester form. The ATRP of t-butyl p-vinyl benzoate (t-BVB) was studied kinetically. The results showed that t-BVB can be polymerized in a controlled way by ATRP. It was found that the polymerization rate of t-BVB is much faster than that of St, meaning that the electron-withdrawing ester group affects the polymerization obviously. Well-defined diblock copolymers of St and t-BVB were prepared by using bromo-terminated PBVBs as macroinitiators via ATRP. After removal of the t-butyl group by hydrolysis, well-defined amphiphilic diblock copolymers of styrene and p-vinyl benzoic acid (PSt-b-PBVA) were obtained.

关 键 词：可控聚合 原子转移自由基聚合 p-乙烯基苯甲酸 苯乙烯 两嵌段共聚物 合成 

分 类 号：TQ316.6[化学工程—高聚物工业]