AC CONDUCTION OF POLY(O-METHOXYANILINE)

Chemically synthesized poly(o-methoxyaniline) was dissolved in N-methy l pirrolidinone and cast in the form of flexible, free-standing films. The electrical properties of these films were investigated by ac cond uctivity measurements in the frequency range from 10(-2) to 10(5) Hz, as a function of the doping level and temperature. For high doping lev els the conductiviy is frequency independent. However, for low doping levels the conductivity increases significantly in the high frequency range. The results are discussed in terms of a hopping model based on a method of distribution of transition rates.