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Oxidative degradation of polyaniline during the chemical oxidative polymerization of aniline in aqueous methanol medium

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The course of chemical oxidative polymerization of aniline using ammonium persulfate as the initiator in acidic (1 M HCl) aqueous methanol (30 to 70 vol%) was studied spectrophotometrically. It was found that at temperatures greater than about 10 °C the reaction leads to degradation of polyaniline, the effect being greater with increasing methanol concentration. This is quite unlike the situation in aqueous ethanol where the product is the usual emeraldine hydrochloride form of polyaniline. Copyright © 2005 Society of Chemical Industry
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Keywords: chemical polymerization; methanol; polyaniline

Document Type: Research Article

Affiliations: 1: Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India 2: Heritage Institute of Technology, Kolkata 700 107, India

Publication date: August 1, 2005

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