Enhanced pH stability of conducting polyaniline by reprotonation with perfluorooctanesulfonic acid

被引：20

作者：

Bober, Patrycja ^{[1
]}

Lindfors, Tom ^{[1
]}

Pesonen, Markus ^{[2
]}

Stejskal, Jaroslav ^{[3
]}

机构：

[1] Abo Akad Univ, Dept Chem Engn, Proc Chem Ctr, Analyt Chem Lab, FI-20500 Turku, Finland

[2] Abo Akad Univ, Dept Nat Sci, Ctr Funct Mat, FI-20500 Turku, Finland

[3] Acad Sci Czech Republic, Inst Macromol Chem, CR-16206 Prague 6, Czech Republic

来源：

SYNTHETIC METALS | 2013年 / 178卷

基金：

芬兰科学院;

关键词：

Hydrophobicity; Polyaniline; Reprotonation; pH stability; Emeraldine salt; Perfluorooctanesulfonic acid; PLASTICIZED POLY(VINYL CHLORIDE); IUPAC TECHNICAL REPORT; SELECTIVE ELECTRODES; FILMS; PROTONATION; ANILINE;

D O I：

10.1016/j.synthmet.2013.07.002

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Electrically conducting polyaniline (PANI) films have been prepared by reprotonation of the emeraldine base form of PANI with perfluorooctanesulfonic acid (PFOS). The reprotonated PANI-PFOS films have been characterized by UV-vis spectroscopy, water contact angle and electrical conductivity measurements. We report that reprotonation of PANI base with PFOS increased the water contact angle from 25 degrees to 105 degrees. The hydrophobic PANI-PFOS maintained a good level of conductivity even at pH = 8 (sigma = 1.0 x 10(-2) S cm(-1)) whereas the PANI hydrochloride lost its conductivity at this pH (sigma = 5.0 x 10(-9) S cm(-1)). Long-term stability tests showed that the reprotonated PANI-PFOS film remained in its conducting form for three month. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：52 / 55

页数：4

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