The electrochemical synthesis of a composite of poly(3-methylthiophene) and poly(acrylonitrile-co-butadiene), nitrilic rubber, is described. The effect of the synthesis conditions on the electrochemical properties of the material was studied by cyclic voltammetry and chronoamperometry. I. r. spectroscopy thermogravimetry, d.s.c., elemental analysis and scanning electron microscopy were used to characterize the inclusion of the conductive polymer in the rubber matrix. The data indicated a low miscibility between the composite components. Stress-strain measurements indicated a toughening of the composite material in relation to the pure rubber. The electrical conductivity of the composite is one order of magnitude lower than that of the pure polymer.33214611461
