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Synthesis and Spectroscopic Characterization of Highly Conducting $BF_3$-Doped Polyaniline

Chaudhuri, Debangshu and Kumar, Ashwani and Rudra, Indranil and Sarma, DD (2001) Synthesis and Spectroscopic Characterization of Highly Conducting $BF_3$-Doped Polyaniline. In: Advanced Materials, 13 (20). pp. 1548-1551.

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Abstract

Conducting polymers constitute an important class of materials because of their novel physical properties and the prospect of their application in various areas of technological importance. Polyaniline (PANI) owing to its ease of synthesis, remarkable environmental stability, and high conductivity in the doped form, has become one of the most thoroughly studied conducting polymers. Over all these years, almost the entire effort in making conducting polyaniline has been focussed on proton doping and little emphasis has been given to other possible dopants. Thus, we felt it worthwhile to explore the possibility of using non-protonic dopants such as electron-deficient Lewis acids. Lewis acid-doped polymers are expected to be different from the conventional protonated PANI owing to a qualitatively different chemical interaction between the dopant and the polymer; for instance, the absence of any counterion in these systems may have a different influence on the properties. During the course of our investigation, a report appeared in the literature establishing the feasibility of doping polyaniline with a Lewis acid, namely $SnCl_4$;[1] however, the room temperature conductivity obtained in this case is about $10^3 S cm^{-1}$ rendering the material unsuitable as a conducting polymer.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley & Sons, Inc.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 17 Oct 2008 07:39
Last Modified: 19 Sep 2010 04:50
URI: http://eprints.iisc.ernet.in/id/eprint/16113

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