FREQUENCY TEMPERATURE RESPONSE OF CONDUCTIVITY IN POLYACRYLONITRILE COPPER(II) HALIDE POLYMER COMPLEXES .1.

The AC and DC electrical properties of synthesized polyacrylonitrile ( PAN) copper(II) halides were investigated in the temperature range 298 -476 K and at frequencies varying from 1 Hz up to 100 kHz. The conduct ivity and dielectric constants of PAN-copper bromide were found to be frequency- and temperature-dependent, while the conductivities of both as-prepared PAN-CuCl2 and samples of PAN-CuCl2 complex heat-treated a t 433 K for 48 h were found to be independent of frequency. The conduc tivity of as-prepared PAN-CuCl2 is found to he 10(-4) Omega(-1) cm(-1) , while that of the heat-treated complex was two orders of magnitude h igher This increase is attributed to another phase transformation havi ng a conjugated structure. IR, UV-visible, and EPR spectroscopy and el emental analysis and magnetic susceptibility were used to investigate the synthesized samples.