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Study of growth of polyaniline chain by EPR method

Abstract

Chemical aniline polymerization has been studied by the EPR method. After a long delay a weak EPR signal I is appeared and transformed rapidly into a strong Lorentzian line. Constants of spin exchange of signals I and II with paramagnetic probes Fe(CN)[sub 6][sup 3-], Co[sup 2+] and O[sub 2], freely diffusing in solution, have been determined. Effect of ferricyanide ions and urea, a breaker of hydrogen bonds, has been measured for signals I and II. Data obtained show the formation of an array of positive charges in PANI at early stage of doping. Constants of spin exchange depend on prehistory of samples. Averaging of EPR line widths of different paramagnetic centers in polyaniline was found. (orig.)
Authors:
Kulikov, A V; [1]  Kogan, Ya L; [1]  Fokeeva, L S [1] 
  1. Inst. of Chemical Physics, Chernogolovka (Russian Federation)
Publication Date:
Mar 22, 1993
Product Type:
Conference
Report Number:
CONF-9208132-
Reference Number:
CHF-93-0GF854; EDB-94-030960
Resource Relation:
Journal Name: Synthetic Metals; (Switzerland); Journal Volume: 55:2/3; Conference: 1992 international conference on science and technology of synthetic metals (ICSM), Goeteborg (Sweden), 12-18 Aug 1992
Subject:
36 MATERIALS SCIENCE; FERRICYANIDES; POLYMERIZATION; ANILINE; DOPED MATERIALS; EXCHANGE INTERACTIONS; LINE WIDTHS; OXYGEN; PARAMAGNETISM; SPIN EXCHANGE; AMINES; AROMATICS; CHEMICAL REACTIONS; COMPLEXES; ELEMENTS; INTERACTIONS; IRON COMPLEXES; MAGNETISM; MATERIALS; NONMETALS; ORGANIC COMPOUNDS; TRANSITION ELEMENT COMPLEXES; 360601* - Other Materials- Preparation & Manufacture; 360606 - Other Materials- Physical Properties- (1992-)
OSTI ID:
5615157
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0379-6779; CODEN: SYMEDZ
Submitting Site:
CHF
Size:
Pages: 1023-1028
Announcement Date:

Citation Formats

Kulikov, A V, Kogan, Ya L, and Fokeeva, L S. Study of growth of polyaniline chain by EPR method. Switzerland: N. p., 1993. Web.
Kulikov, A V, Kogan, Ya L, & Fokeeva, L S. Study of growth of polyaniline chain by EPR method. Switzerland.
Kulikov, A V, Kogan, Ya L, and Fokeeva, L S. 1993. "Study of growth of polyaniline chain by EPR method." Switzerland.
@misc{etde_5615157,
title = {Study of growth of polyaniline chain by EPR method}
author = {Kulikov, A V, Kogan, Ya L, and Fokeeva, L S}
abstractNote = {Chemical aniline polymerization has been studied by the EPR method. After a long delay a weak EPR signal I is appeared and transformed rapidly into a strong Lorentzian line. Constants of spin exchange of signals I and II with paramagnetic probes Fe(CN)[sub 6][sup 3-], Co[sup 2+] and O[sub 2], freely diffusing in solution, have been determined. Effect of ferricyanide ions and urea, a breaker of hydrogen bonds, has been measured for signals I and II. Data obtained show the formation of an array of positive charges in PANI at early stage of doping. Constants of spin exchange depend on prehistory of samples. Averaging of EPR line widths of different paramagnetic centers in polyaniline was found. (orig.)}
journal = {Synthetic Metals; (Switzerland)}
volume = {55:2/3}
place = {Switzerland}
year = {1993}
month = {Mar}
}