High molecular weight polymethacrylates by AGET ATRP under high pressure

被引：131

作者：

Kwiatkowski, Piotr ^{[2
]}

Jurczak, Janusz ^{[2
]}

Pietrasik, Joanna ^{[3
]}

Jakubowski, Wojciech ^{[1
]}

Mueller, Laura ^{[1
]}

Matyjaszewski, Krzysztof ^{[1
]}

机构：

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

[2] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland

[3] Tech Univ Lodz, Inst Polymer & Dye Technol, PL-90924 Lodz, Poland

来源：

MACROMOLECULES | 2008年 / 41卷 / 04期

关键词：

D O I：

10.1021/ma702770u

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High molecular weight polymethacrylates were synthesized using high-pressure AGET (activators generated by electron transfer) ATRP (atom transfer radical polymerization with low concentration of copper catalyst. Use of AGET ATRP with low concentration of copper was dictated by plausible reduced solubility of a catalyst under high pressure and also by a simple manipulation of the reaction mixture, enabling use of air-stable CuBr2 complexes. Several series of experiments were performed to determine the effect of pressure, solvent, target degree of polymerization, and type of monomer on the polymerization of methacrylates via AGET ATRP. Experimental results showed that high pressure can limit the fast deactivation rate constant and reduce the relative rate of exchange between active and dormant species, as compared to propagation.

引用

页码：1067 / 1069

页数：3

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