Self-doped polyaniline derived from poly(2-methoxyaniline-5-phosphonic acid) and didodecyldimethylammonium salt

Abstract

Salt formation of poly(2-methoxyaniline-5-phosphonic acid) (PMAP) with didodecyldimethylammonium bromide (DDDMABr) was performed to give the organic solvent soluble self-doped polyaniline, PMAP-DDDMA. The UV-vis-NIR absorption and ESR spectra clearly support the self-doping. This is in sharp contrast to the corresponding ammonium salt of poly(2-methoxyaniline-5-sulfonic acid), where dedoping was suggested. The drop-cast film of PMAP-DDDMA exhibited its conductivity.