Self-aggregation of poly(methyl methacrylate)-block-poly(sulfonated glycidyl methacrylate) copolymers

被引:20
作者
Gohy, JF [1 ]
Antoun, S [1 ]
Jérôme, R [1 ]
机构
[1] Univ Liege, Inst Chem B6, CERM, B-4000 Liege, Belgium
关键词
self-aggregation; block copolymer; micelles;
D O I
10.1016/S0032-3861(01)00375-5
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The self-aggregation of a series of amphiphilic poly(methyl methacrylate)-block-poly(sulfonated glycidyl methacrylate) (PMMA-b-PSGMA) copolymers in water has been studied by dynamic light scattering (DLS), size exclusion chromatography (SEC) and surface tension measurements. All the copolymers considered in this study form micelles which, however, aggregate into larger structures as shown by DLS and SEC. These larger structures dissociate into smaller ones upon increasing the temperature. The extent of this dissociation process is strongly dependent on the copolymer composition. It is large as the content of the hydrophilic block is high. (C) 2001 Published by Elsevier Science Ltd.
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页码:8637 / 8645
页数:9
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