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Polyaniline-supported acid catalyst: Esterification of cinnamic acid with alcohols

✍ Scribed by Srinivasan Palaniappan; Malladi Sairam

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 106 KB
Volume: 96
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.21601

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✦ Synopsis

Abstract

Polyaniline‐supported acid salts such as polyaniline‐hydrochloride, polyaniline‐sulfate, and polyaniline‐nitrate were prepared by oxidation of aniline using benzoyl peroxide and ammonium persulfate as oxidizing agents. Polyaniline salts were used as catalysts in the esterification of cinnamic acid with alcohols. Polyaniline‐sulfate salt was found to be the best catalyst for the esterification of cinnamic acid. The reusability, handling, and recovery of the catalyst were found to be good. The yield of the ester depended on the type of the polyaniline salt, amount of the catalyst, amount of alcohol, and both the time and the temperature of the reaction. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 1584–1590, 2005

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