Polymers with very low polydispersities from atom transfer radical polymerization

被引：867

作者：

Patten, TE ^{[1
]}

Xia, JH ^{[1
]}

Abernathy, T ^{[1
]}

Matyjaszewski, K ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV,DEPT CHEM,PITTSBURGH,PA 15213

来源：

SCIENCE | 1996年 / 272卷 / 5263期

关键词：

D O I：

10.1126/science.272.5263.866

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A radical polymerization process that yields well-defined polymers normally obtained only through anionic polymerizations is reported. Atom transfer radical polymerizations of styrene were conducted with several solubilizing ligands for the copper(l) halides: 4,4'-di-tert-butyl, 4,4'-di-n-heptyl, and 4,4'-di-(5-nonyl)-2,2'-dipyridyl. The resulting polymerizations have all of the characteristics of a living polymerization and displayed linear semilogarithmic kinetic plots, a linear correlation between the number-average molecular weight and the monomer conversion, and low polydispersities (ratio of the weight-average to number-average molecular weights of 1.04 to 1.05). Similar results were obtained for the polymerization of acrylates.

引用

页码：866 / 868

页数：3

共 16 条

[1] CONTROLLED RADICAL POLYMERIZATION BY DEGENERATIVE TRANSFER - EFFECT OF THE STRUCTURE OF THE TRANSFER AGENT [J].