Solvent-induced morphological transition in core-cross-linked block copolymer micelles |
| |
| Authors: | Huang Haiying Hoogenboom Richard Leenen Mark A M Guillet Pierre Jonas Alain M Schubert Ulrich S Gohy Jean-François |
| |
| Affiliation: | Unité de Chimie des Matériaux Inorganiques et Organiques, and Research Center in Micro- and Nanoscopic Materials and Electronic Devices, Université catholique de Louvain, Place Pasteur 1, 1348 Louvain-la-Neuve, Belgium. |
| |
| Abstract: | 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 cross-linked 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. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
