標題: | Hydrogen bond mediated supramolecular micellization of diblock copolymer mixture in common solvents |
作者: | Kuo, Shiao-Wei Tung, Pao-Hsaing Chang, Feng-Chih 應用化學系 Department of Applied Chemistry |
關鍵字: | Diblock copolymer;Self-assembly;Hydrogen bonding;Micelle |
公開日期: | 1-七月-2009 |
摘要: | We report a new approach toward preparing self-assembled hydrogen-bonded complexes having vesicle and patched spherical structures from two species of block copolymers in nonselective solvents. Two diblock copolymers, poly(styrene-b-vinyl phenol) (PS-b-PvPh) and poly(methyl methacrylate-b-4-vinylpyridine) (PMMA-b-P4VP), were synthesized through anionic polymerization. The assembly of vesicles from the intermolecular complex formed after mixing PS-b-PVPH with PMMA-b-P4VP in THF was driven by strong hydrogen bonding between the complementary binding sites on the PVPH and P4VP blocks. In contrast, well-defined patched spherical micelles formed after blending PS-b-PVPh with PMMA-b-P4VP in DMF: the weaker hydrogen bonds formed between the PVPh and P4VP blocks in DMF, relative to those in THF, resulted in the formation of spherical micelles having compartmentalized coronas consisting of PS and PMMA blocks. (C) 2009 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.eurpolymj.2009.03.020 http://hdl.handle.net/11536/7016 |
ISSN: | 0014-3057 |
DOI: | 10.1016/j.eurpolymj.2009.03.020 |
期刊: | EUROPEAN POLYMER JOURNAL |
Volume: | 45 |
Issue: | 7 |
起始頁: | 1924 |
結束頁: | 1935 |
顯示於類別: | 期刊論文 |