Location of the catalytic site in supported atom transfer radical polymerization

被引：28

作者：

Faucher, S ^{[1
]}

Zhu, SP ^{[1
]}

机构：

[1] McMaster Univ, Dept Chem Engn, Hamilton, ON L8S 4L7, Canada

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 10期

关键词：

active site location; atom transfer radical polymerization (ATRP); heterogeneity; living polymerization; supports;

D O I：

10.1002/marc.200400027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A supported and highly recyclable catalyst complex, CuBr/HMTETA physically adsorbed to silica gel, was used for the ATRP of MMA to elucidate the nature of the catalytic site. In some polymerizations, the reaction solutions were filtered and compared with their unfiltered references for catalytic activity. The filtered systems had high catalyst activity indicating the presence of active catalyst sites in solution. These sites are the primary catalytic contributors.

引用

页码：991 / 994

页数：4

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