ELECTROCHEMICAL SYNTHESIS OF POLYANILINE ON LEAD

Electrochemical synthesis of polyaniline is shown to be possible on a lead surface in sulfuric-acid electrolyte with catalytic quantities of chlorine-containing anions of Ir, Pt, or Pd (initiators). The effects on the polymeric-film growth of various techniques of introducing the initiator and the electrosynthesis conditions are studied. The initia tor presumably enters the composition of the surface sulfate film enha ncing its conductance and promoting better monomer adsorption on the e lectrode surface by complexing with the aniline molecule.