Preparation and characterization of nanoporous polyimide films from triblock copolyimides

被引：13
|
作者：
Cho, Sung-Youl [1 ]
Lee, Chang-Hyung [1 ]
Oh, Se Young [2 ]
Chung, Chan Moon [1 ]
机构：
[1] Yonsei Univ, Dept Chem, Wonju 220710, South Korea
[2] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea
来源：
ULTRAMICROSCOPY | 2008年 / 108卷 / 10期
关键词：
polyimide; block copolymer; nanoporous; SEM;
D O I：
10.1016/j.ultramic.2008.04.018
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
Nanoporous polyimide films were prepared from triblock copolyimides. A thermally labile polymer, poly(propylene glycol), was incorporated into polyimides based on 4,4-(hexafluoroisopropylidene)-diphthalic anhydride to obtain triblock copolyimides. Nanofoams were formed by thermolysis of the labile block. The thermal properties of the copolymers were investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The nanopores were characterized by scanning electron microscopy (SEM). (C) 2008 Elsevier B.V. All rights reserved.
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收藏
页码：1220 / 1223
页数：4
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