Issue 21, 2011
From the journal:

Soft Matter

A smart surface prepared using the switchable superhydrophobicity of neat electrospun intrinsically electroactive polyimide fiber mats

Chang-Jian Weng,a   Yu-Sian Jhuo,a   Chi-Hao Chang,a   Chun-Fang Feng,a   Chi-Wei Peng,a   Chung-Feng Dai,b   Jui-Ming Yeh*a  and  Yen Weic  

* Corresponding authors

a Department of Chemistry and Center for Nanotechnology, Chung-Yuan Christian University, Chung Li, Taiwan, R. O. C
E-mail: Juiming@cycu.edu.tw
Fax: +886-3-265-3399
Tel: +886-3-2653340

b Taiwan Textile Research Institute, Tucheng, Taiwan, R. O. C.

c The Tsinghua Center for Frontier Polymer Research Department of Chemistry, Tsinghua University, Beijing, China

Abstract

An electroactive polyimide fiber (EPF) mat based on conjugated segments of electroactive amino-capped aniline trimer (ACAT) as a diamine and 4,4′-(4,4′-sopropylidenediphenoxy)-bis(phthalic anhydride) (BSAA) as a dianhydride was successfully prepared by electro-spin technology with electrochemical activity and dopable properties, which were similar to polyaniline. The degree of electrochemical activity and dopable properties can be tuned by varying the content of ACAT existing in the as-prepared electro-spun EPF mats. After doping with perfluorooctanesulfonic acid (PFOS), the water contact angle of EPF surface is increased from hydrophobicity at 133° to superhydrophobicity at 155°. It is interesting that the EPF mat undergoes a switchable process from superhydrophobicity to superhydrophilicity via doping with PFOS and de-doping with ammonium gas.

Graphical abstract: A smart surface prepared using the switchable superhydrophobicity of neat electrospun intrinsically electroactive polyimide fiber mats

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Article information

DOI
https://doi.org/10.1039/C1SM06097J
Article type
Paper
Submitted
13 Jun 2011
Accepted
05 Aug 2011
First published
12 Sep 2011

Soft Matter, 2011,7, 10313-10318

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A smart surface prepared using the switchable superhydrophobicity of neat electrospun intrinsically electroactive polyimide fiber mats

C. Weng, Y. Jhuo, C. Chang, C. Feng, C. Peng, C. Dai, J. Yeh and Y. Wei, Soft Matter, 2011, 7, 10313 DOI: 10.1039/C1SM06097J

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