Modeling of DC conductivity for ethylene vinyl acetate (EVA)/polyaniline conductive composites prepared through insitu polymerization of aniline in EVA matrix

Ethylene vinyl acetate (EVA)/polyaniline (Pani) composites were prepared by insitu polymerization technique. DC and AC conductivity of the composites have been investigated. Different theoretical models like Voet, Scarisbrick, Bueche, and McCullough have been applied to predict DC conductivity of the composite systems. Scarisbrick model exhibits somewhat similarity between experimentally observed and theoretically predicted conductivity. The limitations of the models as well as the deviations between the theoretically predicted and experimentally observed results have been discussed. A new model for conductivity has been proposed which fit well with the experimentally observed results.