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Transport and magneto-transport study on some conducting polyanilines

Angappane, S and Srinivasan, D and Rangarajan, G and Prasad, V and Subramanyam, SV and Wessling, B (2000) Transport and magneto-transport study on some conducting polyanilines. In: Physica B: Condensed Matter, 284-28 (Part-2). pp. 1982-1983.

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The room temperature electrical conductivities of pristine polyaniline (PAni), its blend with PMMA (polymethylmethacrylate) in the ratio 2 : 3 and PAni extracted from the blend were found to be 18, 29 and 73 S/cm, respectively. The temperature dependence of conductivity was also found to differ markedly: for the extract and the blends it is weakly temperature dependent over the interval 300–1.2 K. Reduced activation energy versus temperature plots showed that, while the unblended PAni is on the insulating side of the M–I transition, the blends and the extracted PAni are on the metallic side. The magneto-conductivity (MC) of the extracted PAni is discussed in terms of localization and Coulomb interaction effects.

Item Type: Journal Article
Publication: Physica B: Condensed Matter
Publisher: Elsevier
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Conducting polymers;Disordered metals;PAni;PAni-PMMA;Polyaniline.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 25 Jul 2008
Last Modified: 19 Sep 2010 04:48
URI: http://eprints.iisc.ac.in/id/eprint/15242

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