Nitroxide-Mediated Controlled/Living Radical Copolymerization of Methyl Methacrylate with a Low Amount of Styrene in Ionic Liquid

被引：19

作者：

Brusseau, Segolene ^{[1
,2
]}

Boyron, Olivier ^{[1
]}

Schikaneder, Christopher ^{[1
]}

Santini, Catherine C. ^{[1
]}

Charleux, Bernadette ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, CPE Lyon,Lab Chim Catalyse Polymeres & Proc C2P2, UMR 5265, F-69616 Villeurbanne, France

[2] Univ Paris 06, CNRS, Lab Chim Polymeres, UMR 7610, F-75252 Paris 05, France

来源：

MACROMOLECULES | 2011年 / 44卷 / 02期

关键词：

PROPAGATION KINETICS; BLOCK-COPOLYMERS; POLYMERIZATION; TERMINATION; ACRYLATES; CATALYSTS; SG1;

D O I：

10.1021/ma102321z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

An ionic liquid, 1-butyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide ([C(1)C(4)Im]-NTf2) was used as the polymerization medium for the SG1-mediated free-radical solution copolymerization of methyl methacrylate with a low percentage of styrene, initiated by the BlocBuilder alkoxyamine at 90 degrees C. Control over the polymer molar mass and molar mass distribution was good, slightly better than that obtained in bulk or classical organic solvent solutions for the same system. Compared to the results of nitroxide-mediated polymerizations in ionic liquids previously reported in the literature, the quality of control was significantly better. It seems that the ionic liquid did not influence the activation deactivation mechanism but played a role on the polymerization kinetics only. Indeed, the overall polymerization rate was found to be larger and the final conversion higher, in good agreement with the increase of k(p) and the decrease of k(t), which are key features of free-radical polymerization in ionic liquids.

引用

页码：215 / 220

页数：6

共 46 条

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