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Thermal properties of processable polyaniline with novel sulfonic acid dopants

✍ Scribed by Raji K Paul; C K S Pillai

Book ID
104528739
Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
135 KB
Volume
50
Category
Article
ISSN
0959-8103

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✦ Synopsis

Abstract

Thermal properties of melt processable polyaniline (PANI) synthesized by doping with functionalised novel sulfonic acid dopants have been investigated. Doping of PANI was carried out by using the dopants derived from an inexpensive naturally existing biomonomer, cardanol: sulfonic acid of 3‐pentadecylphenol, sulfonic acid of 3‐pentadecylanisole and sulfonic acid of 3‐pentadecylphenoxyacetic acid. These dopants act as very good plasticizing cum protonating agents for PANI. Doping was carried out either by mechanical mixing of emeraldine base and the dopant or by an in situ doping emulsion polymerization of aniline. Highly conducting free‐standing flexible films of protonated PANI could be prepared by a hot pressing method at different temperatures. The thermal stability and thermal reactions of these protonated PANI were followed by conductivity measurements at different temperatures, wide angle X‐ray diffraction measurements, thermogravimetric analysis and differential scanning colorimetry analysis.

© 2001 Society of Chemical Industry

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