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Ageing of Conductive Polyaniline/Poly(Ethylene-co-Vinylacetate) Composites Studied by Thermal Methods

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Abstract

The long-term environmental ageing of conductive composite films containing ethylene-co-vinyl-acetate (EVA) copolymer and a complex of polyaniline (PANI) and dodecylbenzenesulfonic acid (DBSA) was studied by using differential scanning calorimetry (DSC). We assume that both phase separation and crosslinking of PANI main chains occur in the systems. On the other hand, the competition between PANI–DBSA complex self-organization and crystallization of EVA matrix result in structural changes and formation of continuous conductive network, responsible for significantly increased (ca five orders of magnitude) electrical conductivity of the aged films.

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Authors and Affiliations

  1. Institute of Polymers, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    D. Tsocheva & L. Terlemezyan

  2. Department of Commodity Science, University of National and World Economy, Studentsky grad Ch. Botev, 1100, Sofia, Bulgaria

    T. Tsanov

Authors
  1. D. Tsocheva
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  2. T. Tsanov
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  3. L. Terlemezyan
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Tsocheva, D., Tsanov, T. & Terlemezyan, L. Ageing of Conductive Polyaniline/Poly(Ethylene-co-Vinylacetate) Composites Studied by Thermal Methods. Journal of Thermal Analysis and Calorimetry 68, 159–168 (2002). https://doi.org/10.1023/A:1014949021329

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