Impedanciometric Study of Conducting Polymer Composite Films from Cassava Starch/ Poly (3,4-Ethylenedioxythiophene)

Abstract

The aim of this study was to study, by electrochemical impedance spectroscopy, the electrochemical properties of a new conductive polymer composite made from cassava starch and poly (3, 4ethylenedioxythiophene) (PEDOT). The results show that the polymer composite shows excellent conductivity with resistance values in the order of kΩ and capacitance values in the order of mF as a result of possible interactions of polymer chains of cassava starch and PEDOT. The results allow to establish a high potentiality of the starch/PEDOT polymer composite for applications as batteries, charge accumulators or electrochemical actuators.