Anew class of dimethyl formamide (DMF)- and acetone-soluble conducting pyrrole-ketonic resin copolymers has been developed. This was accomplished by oxidatively polymerizing pyrrole monomer by Ce(IV) salt in the presence of methyl ethyl ketone formaldehyde resin (MEKF-R). The resulting copolymers were readily dissolved in DMF and acetone. These products were characterized by FTIR and UV-visible spectroscopy, conductivity, four-probe conductivity, viscosity, and DSC measurements. (C) 2001 John Wiley & Sons, Inc.