Solvent-induced morphological transition in core-cross-linked block copolymer micelles

被引：114
作者：
Huang, HY
Hoogenboom, R
Leenen, MAM
Guillet, P
Jonas, AM
Schubert, US
Gohy, JF
机构：
[1] Eindhoven Univ Technol, Lab Macromol Chem & Nanosci, NL-5600 MB Eindhoven, Netherlands
[2] DPI, Eindhoven, Netherlands
[3] Catholic Univ Louvain, Unite CMAT, B-1348 Louvain, Belgium
[4] Catholic Univ Louvain, Res Ctr Micro & Nanoscop Mat & Elect Devices, B-1348 Louvain, Belgium
[5] Catholic Univ Louvain, Unite Chim & Phys Hauts Polymeres, B-1348 Louvain, Belgium
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 11期
关键词：
D O I：
10.1021/ja057762k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Microwave-assisted polymerization has been utilized to synthesize amphiphilic poly(2-ethyl-2-oxazoline-block-2-'' soy alkyl ''-2-oxazoline) diblock copolymers (PEtOx-PSoyOx). The amphiphilic block copolymers have been used to prepare aqueous spherical micelles consisting of a PEtOx Corona and a PSoyOx core, which have been further cross-linked by UV irradiation. The morphology of these crosslinked micelles has been shown to reversibly change from spheres to short rods referred to as rice grains whenever the micelles were transferred from water into acetone, a nonselective solvent for the constituent blocks. This morphological transition has been attributed to the swelling of the slightly cross-linked PSoyOx core.
引用
收藏
页码：3784 / 3788
页数：5
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