Wettability switching of SDS-doped polyaniline from hydrophobic to hydrophilic induced by alkaline/reduction reactions

被引：32

作者：

Leng, Wenguang ^{[1
]}

Zhou, Shuxue ^{[1
]}

Gu, Guangxin ^{[1
]}

Wu, Limin ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Key Lab Mol Engn Polymers MOE, Adv Mat Lab, Shanghai 200433, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2012年 / 369卷

基金：

中国国家自然科学基金;

关键词：

Polyaniline; Stimuli-responsive; Alkaline reaction; Reduction reaction; Hydrophobicity; Hydrophilicity; AMMONIA GAS; FILMS; NANOFIBERS; COMPOSITE; SENSORS; SURFACE; MICROSTRUCTURES; SENSITIVITY;

D O I：

10.1016/j.jcis.2011.11.080

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, sodium dodecyl sulfate (SDS) is used as dopant to manipulate both morphology and wettability of polyaniline (PANI). When SDS amount is controlled within a certain range, micro/nano double-rough PANI with hydrophobic surface can be obtained, while insufficient or excess SOS can only lead to hydrophilic PANI. The double-rough PANI shows stimuli-responsive change in wettability to either alkaline reaction or reduction reaction from hydrophobicity to hydrophilicity. This quick response can be applied to quantitatively estimate NaOH concentrations within the range of 10(-3)-10(-1) M and to detect various reducing liquids. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：411 / 418

页数：8

共 36 条

[1] Optical ozone-sensing properties of poly(2-chloroaniline), poly(N-methylaniline) and polyaniline films [J].