Polyaniline nanotubules-anion effect on conformation and oxidation state of polyaniline studied by Raman spectroscopy

被引：124

作者：

Tagowska, M ^{[1
]}

Palys, B ^{[1
]}

Jackowska, K ^{[1
]}

机构：

[1] Warsaw Univ, Fac Chem, Lab Electrochem, PL-02093 Warsaw, Poland

来源：

SYNTHETIC METALS | 2004年 / 142卷 / 1-3期

关键词：

nanotubules; polyaniline; anion effect; Raman;

D O I：

10.1016/j.synthmet.2003.09.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polyaniline nanotubules have been obtained by using both chemical or electrochemical synthesis. The effect of the polymerization bath composition on morphology and molecular structure of nanotubules has been studied by means of scanning electron microscopy (SEM) and Raman microspectroscopy. As revealed by SEM, electrochemically obtained tubes are more rigid and uniform comparing with those obtained by chemical synthesis. Raman depth profiles across the template membrane containing nanotubules were studied. Most significant differences between Raman spectra of the variously obtained nanotubules are introduced by the kind of acid present in the polymerization bath. In particular, perchloric acid promotes stretched-planar conformation and the polaronic structure of polyaniline in tubes, while hydrochloric acid favors twisted (or random) conformation and quinoid structures. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：223 / 229

页数：7