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Direct current electrical conductivity of Versicon™ blended in poly(vinyl chloride)

Published online by Cambridge University Press:  31 January 2011

Rodney Speel  and
Peter K. LeMaire
Rodney Speel
Affiliation:
Department of Physics and Earth Sciences, Central Connecticut State University, New Britain, Connecticut 06050
Peter K. LeMaire
Affiliation:
Department of Physics and Earth Sciences, Central Connecticut State University, New Britain, Connecticut 06050
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Abstract

The direct current (dc) electrical conductivity of the conducting polymer Versicon™ blended in poly(vinyl chloride) (PVC) was measured from 25 K to 310 K. The data were fitted to various electrical transport models, and the best fit was found with the fluctuation-induced tunneling model, suggesting that tunneling dominates in the mode of electron transport at low temperatures. The parameters, T1 and T0 from the fluctuation-induced tunneling model, were found to be 625 K and 129 K, respectively. The interparticle distance was estimated to be about 13 Å. At higher temperatures, the plot of the log of resistivity versus the reciprocal of the temperature was linear, indicating that thermally activated hopping dominated the mode of electrical transport at these temperatures. The results support earlier findings that VersiconTM forms continuous aggregates in blends. The results also support growing evidence in the literature that these types of aggregate formation tend to strongly influence the mode of electrical transport in composites.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 5 , May 1997 , pp. 1183 - 1186
Copyright
Copyright © Materials Research Society 1997

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