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Spectroscopic studies of doping reactions in polypyrrole actuators
Paul A. Kilmartin,Kwong-Chi Li,Graham A. Bowmaker,Nicholas A. Vigar,Ralph P. Cooney,adranka Travas-Sejd 한국물리학회 2006 Current Applied Physics Vol.6 No.3
Thin lms of polypyrrole were electropolymerised on a platinum electrode in electrolytes containing the small mobile chloride anion,laser excitations of 488 nm and 785 nm. Cyclic voltammetry indicated that anion movement dominates the redox processes in a KClelectrolyte, and cation movement in NaDBS media, while in K2SO4 both anions and cations are involved during doping and dedoping.The reduction of polpyrrole was eectively monitored by the increase of the 1555 cm. 1 band (mC@ C) using the 488 nm laser, and theoxidation of polpyrrole by the appearance of a band at 921 cm. 1 (d.