Ordered porous polymer films via phase separation in humidity environment

被引:73
作者
Cui, L [1 ]
Peng, J [1 ]
Ding, Y [1 ]
Li, X [1 ]
Han, YC [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
基金
中国国家自然科学基金;
关键词
ordered porous films; phase separation; breath figures;
D O I
10.1016/j.polymer.2005.04.018
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A transition of morphology from island-like structure to disordered and ordered holes on the surface of polystyrene (PS) and poly(2-vinylpyridine) (PVP) blend films were observed with the increase of humidity. At appropriate weight ratio of PS/PVP and PS molecular weight, when humidity reached to a critical value, the hexagonal arrays of holes formed for PS/PVP blend films due to 'breath figures' stabilized by PVP with its strong hygroscopic characteristics during phase separation. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5334 / 5340
页数:7
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