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arXiv · 0903.1498

Effect of composition on the dielectric relaxation of zeolite-conducting polyaniline blends

I. Sakellis·A. N. Papathanassiou·J. Grammatikakis
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Abstract

The complex permittivity of conducting polyaniline and zeolite - polyaniline blends was measured in the frequency range 0.01 to 2000000 Hz from room temperature to liquid nitrogen temperature. A loss peak is detected for 25, 35 and 50 wt % zeolite blends. Its position in the frequency domain, activation energy and intensity is a function of composition. The experimental results are interpreted through the competing multiple role of zeolite: as being less conducting than polyaniline, it impedes the electric charge flow by dividing large conducting polyaniline regions into smaller pieces, subsequently provides short-range pathways and, moreover, enriches the blend in interfaces separating zeolite from polyaniline.

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I. Sakellis, A. N. Papathanassiou, J. Grammatikakis. 2009-03-09. Effect of composition on the dielectric relaxation of zeolite-conducting polyaniline blends. https://doi.org/10.1063/1.3097772

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