End-functional poly(tert-butyl acrylate) star polymers by controlled radical polymerization

被引：252

作者：

Zhang, X ^{[1
]}

Xia, JH ^{[1
]}

Matyjaszewski, K ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Ctr Macromol Engn, Dept Chem, Pittsburgh, PA 15213 USA

来源：

MACROMOLECULES | 2000年 / 33卷 / 07期

关键词：

D O I：

10.1021/ma991076m

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 poly(tert-butyl acrylate) (PtBA) was prepared by an "arm first" method using copper-mediated atom transfer radical polymerization (ATRP). Divinylbenzene, 1,4-butanediol diacrylate, and ethylene glycol dimethacrylate were employed as the coupling reagents. PtBA star polymers were successfully prepared using preformed PtBA macroinitiators. Several factors pertinent to star polymer formation, including the choice of exchange halogen and solvent, the addition of copper(II) species, the ratio of coupling reagent to macroinitiator, and the reaction time for the star formation, were addressed. Functional initiators were introduced to directly prepare arms with alpha-functionalities since ATRP is highly tolerant to functional groups. End-functional star polymers with various functionalities, such as hydroxy, epoxy, amino, cyano, and bromine, on the outer layers were successfully synthesized.

引用

页码：2340 / 2345

页数：6

共 33 条

[1] Atom transfer radical polymerization of styrene using a novel octafunctional initiator: Synthesis of well-defined polystyrene stars [J].