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The temperature dependence of the electrical conductivity of some unsaturated copoly (ester-amine) polymers

ASSAD F. KHATTAB1,* , SA’AD F. MAHMOOD1, YOUSIF A. SHAHAB1

Affiliation

  1. Chemistry Department, College of Science, Mosul University, Mosul, Iraq

Abstract

The temperature dependence of the electrical conductivity (σ) of ten unsaturated copolymers of the (ester-amine) type was studied in the temperature range (303-373K). A plot of log (σ) versus (1/T) reveals two region with an inflection point at the glass transition temperature Tg of the polymers. Below Tg the conductivity is not very sensitive to change in temperature, while the sensitivity increases above Tg. The Tg of the investigated polymers determined with this method is influenced by the nature of monomers constituting the polymers and their sequence distribution..

Keywords

Unsaturated copoly (ester-amine) polymers, Electrical conductivity, Glass transition temperature, Molecular motion.

Submitted at: Oct. 10, 2007
Accepted at: June 9, 2008

Citation

ASSAD F. KHATTAB, SA’AD F. MAHMOOD, YOUSIF A. SHAHAB, The temperature dependence of the electrical conductivity of some unsaturated copoly (ester-amine) polymers, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 6, pp. 1463-1467 (2008)