期刊
POLYMER
卷 54, 期 14, 页码 3709-3715出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2013.04.058
关键词
Micelle; Vesicle; Morphology transformation
资金
- National Natural Science Foundation of China (NSFC) [51103022, 50925312]
- Science and Technology Commission of Shanghai Municipality (STCSM, Pujiang Talent Plan) [12PJ1400100]
- Fundamental Research Funds for the Central Universities
- Chinese Universities Scientific Fund [CUSF-DH-D-2013004]
Morphology transformation of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) vesicle on solid surface induced by vapor annealing was investigated. The PS-b-PEO diblock copolymer vesicles, prepared by dissolving in a co-solvent and adding a selective solvent, were transferred to silicon wafer surface by spin cast and then incubated in three different vapors, tetrahydrofuran (THF), dioxane (DIOX), and N, N-dimethylformamide (DMF) separately. In THF or DIOX, the vesicular structures quickly fuse together into a droplet which then spreads on the surface. While in DMF vapor, vesicle-cylinder-sphere transformation is present. The vesicle morphology transformation in DMF vapor is very sensitive to water content. A small amount of water in DMF would slow down the transformation rate, and water content would affect the cylinder packing. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据