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Electron spin resonance spectroscopy and electrical conductivity studies on some polyaniline salts and their bases

Rao, Swapna P and Sathyanarayana, DN (2004) Electron spin resonance spectroscopy and electrical conductivity studies on some polyaniline salts and their bases. In: Indian Journal of Chemistry, Section A: Inorganic, Bio-inorganic, Physical, Theoretical & Analytical Chemistry, 43A (7). pp. 1377-1384.

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Abstract

Four different polyaniline salts have been prepared by chemical oxidative polymerization of aniline with benzoyl peroxide as a novel oxidant employing inverse emulsion method at ambient temperature using different protonic acids (HCl, $H_2SO_4, H_3PO_4$ and sulphosalicylic acid). Their corresponding bases have been obtained by dedoping the salts with aqueous ammonium hydroxide. The polyaniline HCl salt exhibits the highest room temperature conductivity (2.31 S cm-1). Temperature dependent EPR studies reveal Curie-Weiss and thermally activated paramagnetism for the polyaniline salts. No correlation between the magnetic properties and conductivity could be found.

Item Type: Journal Article
Additional Information: Copyright of this rticle belongs to National Institute of Science Communication
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 06 Nov 2007
Last Modified: 19 Sep 2010 04:41
URI: http://eprints.iisc.ernet.in/id/eprint/12383

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