X-ray photoelectron spectroscopic studies of conducting polyaniline, poly bisphenol A carbonate and electrochemically synthesized composite of the two

X-ray photoelectron studies of electrochemically prepared conducting polyaniline (PAN), polycarbonate (PC) and PAN/PC composite films have been studied. The core level spectra of carbon, oxygen, nitrogen and chlorine have been synthesized using Gaussian distribution functions. The analysis oft he first two elements indicates the presence of carbonyl group on the surface of PAN samples. The detailed analysis of nitrogen and chlorine spectra show the presence of N-Cl bonding apart from usual covalent peaks. No major structural modification in the composite film could be detected. Only the presence of covalent chlorine derived from chloroform used to prepare these films have been observed. From the measurement of electrical conductivity of these films it seems that it is the proportion of ionic chlorine, rather than covalent chlorine to nitrogen that is important in determining the conductivities. (C) 1998 Elsevier Science Ltd. All rights reserved.