Polyaniline( PANI) was synthesized by self-assembly method in aqueous solutions of 2-acrylamido-2-methylpropane sulfonic acid( AMPS),sodium laurylsulfonate( SDBS) and poly( 2-acrylamido-2-methylpropane sulfonic acid)( PAMPS),respectively. PANI synthesized with different surfactants was characterized by SEM,TEM and specific surface analyzer. The doping effects of PAMPS on PANI were investigated by FT-IR,UV spectra and XPS. The electrochemical properties of PANI were investigated by cyclic voltammetry and ele...