Nitroxide mediated polymerization of methacrylates at moderate temperature

被引：29

作者：

Detrembleur, Christophe ^{[1
]}

Jerome, Christine ^{[1
]}

De Winter, Julien ^{[2
]}

Gerbaux, Pascal ^{[2
]}

Clement, Jean-Louis ^{[3
]}

Guillaneuf, Yohann ^{[3
]}

Gigmes, Didier ^{[3
]}

机构：

[1] Univ Liege ULg, Ctr Educ & Res Macromol, Dept Chem, B-4000 Liege, Belgium

[2] Univ Mons UMONS Mat Nova, Serv Chim Mat Nouveaux, B-7000 Mons, Belgium

[3] Aix Marseille Univ, CNRS, Inst Chim Radicalaire, UMR 7273, F-13397 Marseille 20, France

来源：

POLYMER CHEMISTRY | 2014年 / 5卷 / 02期

关键词：

FREE-RADICAL POLYMERIZATION; METHYL-METHACRYLATE; BUTYL ACRYLATE; STYRENE; CHAINS;

D O I：

10.1039/c3py01133j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this communication we report the first homopolymerization of a variety of methacrylates by an NMP process at moderate temperature (40-50 degrees C), using an easily accessible and inexpensive nitroxide precursor. The combination of a low temperature azo-initiator with a hindered nitroso-compound produces a mixture of hindered nitroxides in the polymerization medium that act as efficient polymerization control agents. Results of Electron Spin Resonance (ESR) spectroscopy experiments combined with mass spectrometric studies support the proposed in situ NMP mechanism. The hindered structure of the nitroxides formed in situ is believed to be responsible for the efficiency of the process by allowing it to proceed at low temperature, therefore limiting the side reactions generally observed in NMP of methacrylates.

引用

页码：335 / 340

页数：6

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