Polyaniline doped with (+/-)-camphor sulfonic acid was blended with polyvinyl chloride/nitrile rubber. The thermoplastic blend was characterized for its conductivity, mechanical and dynamic mechanical properties, and microwave response. The blend was found to be compatible in nature. Loss component of relative permittivity increased with polyaniline content. Storage modulus increased with polyaniline content, whereas tan 5 showed decline. (c) 2006 Wiley Periodicals, Inc.