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Conducting poly(2-methylaniline) salts and their bases: temperature-dependent EPR studies

Anand, Jayashree and Palaniappan, Srinivasan and Sathyanarayana, DN (1994) Conducting poly(2-methylaniline) salts and their bases: temperature-dependent EPR studies. In: Synthetic Metals, 63 (1). pp. 43-46.

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Abstract

Five different poly(2-methylaniline) salts were prepared by chemical polymerization of 2-methylaniline using different protonic acids. The salts were converted into their bases by using aqueous $NH_4OH$. EPR spectra were recorded for the solid samples of poly(2-methylaniline) salts and their bases in the temperature range 40-200 °C at intervals of 40 °C. PMA salts and their bases consist of highly mobile radical cations or polarons. The salts show a thermally activated paramagnetism, i.e., polarons are antiferromagnetically coupled to each other, while the bases show temperature-independent or Pauli-type paramagnetism.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 19 Oct 2006
Last Modified: 19 Sep 2010 04:31
URI: http://eprints.iisc.ernet.in/id/eprint/8319

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