期刊
SYNTHETIC METALS
卷 160, 期 9-10, 页码 1060-1064出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2010.02.027
关键词
Polyaniline; Raman spectroscopy; Spectroelectrochemistry
资金
- Lithuanian Science and Study Foundation [N-07009, B-07013]
Selected conducting polymers (polyaniline and poly-N-methylaniline), and copolymers of aniline with o-, m-, and p-phenylenediamines, as well as with metanilic acid, have been electropolymerized at a gold electrode, and studied with Raman spectroscopy (532 nm excitation) in a pH-neutral solution. Characteristic Raman features have been obtained and analysed for (co)polymers within electrode potential range of -0.4 to 0.2V vs. Ag/AgCl. Changes in Raman spectra depending on electrode potential have been analysed and assigned to different redox forms of (co)polymers. It has been shown that both oxidised and reduced forms of (co)polymers can exist, depending on electrode potential, even in a pH-neutral solution, where most of the polymers studied show no clearly defined electrochemical redox processes. (C) 2010 Elsevier B.V. All rights reserved.
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