Synthesis and characterization of organo-soluble conducting polyaniline doped with oleic acid

An emulsion polymerization process has been developed for the direct synthesis of the organo-soluble polyaniline (PANI) with oleic acid (OA) as the surfactant and dopant. The polyaniline doped with oleic acid (PANI/OA) powders, prepared by the proposed method, are highly soluble in many organic solvents such as dimethyl sulfoxide (DMSO), dimethyformamide (DMF) and N-methyl,2-pyrrolidinone (NMP). The PANI/OA powders were characterized by elemental analysis (EA), FTIR, UV–vis, TGA and SEM. The conductivities of the PANI/OA powders decreased with the increasing of the amounts of water in the emulsion polymerization.