Synthesis and characteristics of conductive composite film from polyaniline and PMMA

Conductive composite materials of polyaniline (PAn)/PMMA was synthesized by in-situ chemical oxidation ploymerization of aniline in PMMA solution.The free-standing composite film was made through the evaporation of solvent.The electrical conductivity of the composite film reached up to 10~(-2) S/cm measured by standard four-probe method.The conditions of synthesis were discussed,a proper polymerization condition was obtained,and the stability of the film was discussed as well.The electrode electrochemical activities and electrical properties were stable through testing the conductivity of the film.The structure and component of the film were characterized by IR and elemental analysis.