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


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