PREPARATION AND CHARACTERIZATION OF NOVEL STAR-SHAPED COPOLYMERS HAVING 3 DIFFERENT BRANCHES

被引：148

作者：

FUJIMOTO, T

ZHANG, HM

KAZAMA, T

ISONO, Y

HASEGAWA, H

HASHIMOTO, T

机构：

[1] NAGAOKA UNIV TECHNOL,DEPT CHEM,NIIGATA 94021,JAPAN

[2] KYOTO UNIV,DEPT POLYMER CHEM,KYOTO 606,JAPAN

来源：

POLYMER | 1992年 / 33卷 / 10期

关键词：

3-COMPONENT; 3-ARM STAR-SHAPED COPOLYMER; POLY(STYRENE); POLY(DIMETHYLSILOXANE); POLY(TERT-BUTYL METHACRYLATE); LITHIUM SALT OF PARA-(DIMETHYLHYDROXY)SILYL-ALPHA-PHENYLSTYRENE; ANIONIC POLYMERIZATION;

D O I：

10.1016/0032-3861(92)90890-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Star-shaped copolymers having three different branches, poly(styrene), poly(dimethylsiloxane), and poly(tert-butyl methacrylate), were prepared by coupling of poly(styryl) anion with end-reactive poly(dimethylsiloxane), followed by anionic propagation of tert-butyl methacrylate. End-reactive poly(dimethylsiloxane) was prepared by anionic polymerization of hexamethylcyclotrisiloxane initiated with the lithium salt of p-(dimethylhydroxy)silyl-alpha-phenylstyrene. The resultant polymers were characterized by osmometry, g.p.c., H-1-n.m.r., and found to be pure and to have narrow molecular weight distributions.

引用

页码：2208 / 2213

页数：6

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