Author/Authors :
Takahashi، نويسنده , , Kohshin and Nakamura، نويسنده , , Kunihiro and Yamaguchi، نويسنده , , Takahiro and Komura، نويسنده , , Teruhisa and Ito، نويسنده , , Shoji and Aizawa، نويسنده , , Ryuji and Murata، نويسنده , , Kazuhiko، نويسنده ,
Abstract :
Water solubility in all pH region for externally HCl-doped conducting polyaniline (ED-SPAN) enables us to do its detail characterization by UV–VIS spectra, cyclic voltammogram, ESR spectra, and electrical conductivity in relation to the doping level. It was found that one free radical was produced in polyaniline backbone by the addition of one proton onto the imino-nitrogen. The electrical conductivity of ED-SPAN solid film remarkably increased with increasing free radical in polyaniline backbone because of remarkable increase of the hole mobility. Undoping of ED-SPAN solid occurred by heating at more than 40 °C.
