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On the Nature of Heterogeneity in Vacuum Deposited Polyaniline Films

Published online by Cambridge University Press:  10 February 2011

V. F. Ivanov ,
A. A. Nekrasov ,
K. V. Cheberyako ,
O. L. Gribkova  and
A. V. Vannikov
V. F. Ivanov
Affiliation:
A.N. Frumkin Institute of Electrochemistry RAS, Leninskii prospect 31, Moscow 117071, Russia. E-mail: vanlab@glasnet.ru.
A. A. Nekrasov
Affiliation:
A.N. Frumkin Institute of Electrochemistry RAS, Leninskii prospect 31, Moscow 117071, Russia. E-mail: vanlab@glasnet.ru.
K. V. Cheberyako
Affiliation:
A.N. Frumkin Institute of Electrochemistry RAS, Leninskii prospect 31, Moscow 117071, Russia. E-mail: vanlab@glasnet.ru.
O. L. Gribkova
Affiliation:
A.N. Frumkin Institute of Electrochemistry RAS, Leninskii prospect 31, Moscow 117071, Russia. E-mail: vanlab@glasnet.ru.
A. V. Vannikov
Affiliation:
A.N. Frumkin Institute of Electrochemistry RAS, Leninskii prospect 31, Moscow 117071, Russia. E-mail: vanlab@glasnet.ru.
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Abstract

Heterogeneity of polyaniline and other conductive polymers in intermediate oxidation states is fundamental problem of physics and chemistry of these ones. Usually only advanced methods may be used for immediate detection of the heterogeneity in the molecular scale range. For the first time we have observed the process of the heterogeneous net-like structure formation in macroscopic scale under the oxidation of the evaporated polyaniline films by aqueous HNO3. and other oxidative agents. Formation of heterogeneous structure is explained in terms of nonequilibrium thermodynamic and chemical kinetics.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 600: Symposium FF – Electroactive Polymers , 1999 , 221
Copyright
Copyright © Materials Research Society 2000

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