Abstract
The temperature dependence of the electrical conductivity (σ) of six conjugated polyazomethines was studied in the
temperature range (303-423 K). A plot of log(σ) versus (1/T) reveals two regions 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. This behavior is explained as a consequence of the effect of the different types of motion of
the polymeric chains below and above Tg on the conductivity of the polymers.
Keywords
Conjugated polyazomethines, Electrical conductivity, Temperature dependence, Glass transition temperature,
Molecular motion.
Citation
ALI F. AL-SHAWABKEH, HAITHAM A. AL-WAHAB, YOUSIF A. SHAHAB, Temperature dependence of the electrical conductivity of some conjugated polyazomethines, Optoelectronics and Advanced Materials - Rapid Communications, 1, 4, April 2007, pp.186-188 (2007).
Submitted at: March 7, 2007
Accepted at: March 14, 2007