X-RAY PHOTOELECTRON SPECTROSCOPIC STUDIES OF CONDUCTING POLYANILINE, POLY-BISPHENOL-A CARBONATE AND ELECTROCHEMICALLY SYNTHESIZED COMPOSITEOF THE 2

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