Controlled/"living" radical polymerization. Homogeneous reverse atom transfer radical polymerization using AIBN as the initiator

被引：259

作者：

Xia, JH ^{[1
]}

Matyjaszewski, K ^{[1
]}

机构：

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

来源：

MACROMOLECULES | 1997年 / 30卷 / 25期

关键词：

D O I：

10.1021/ma9710085

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Atom transfer radical polymerization using AIBN/CuBr2/2dNbipy as the initiating system has been successfully carried out for styrene, methyl acrylate, and methyl methacrylate. Well-defined polymers with low polydispersities have been obtained. High apparent initiation efficiencies were observed for both styrene and methyl acrylate polymerizations at 110 degrees C. With an increase of the [AIBN](0)/[CuBr2/ 2dNbipy](0) ratio, apparent initiation efficiency decreased and polydispersity increased. Low initiation efficiencies were observed for the polymerizations of methyl methacrylate at both 110 and 90 degrees C, with higher polydispersities at higher temperature. The changes in polydispersity with respect to the changes in [AIBN](0)/[CuBr2/2dNbipy](0) ratio and the temperature can he explained by the differences in the rate of deactivation by the copper(II) halide species.

引用

页码：7692 / 7696

页数：5

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