Dielectric properties of 1,8 Anthraquinon phthalate films


The dielectric properties of poly ( 1,8-antraquinon phthalate film’s) have been studied through measuring the electrical equivalent circuit (lumped circuit ) contained capacitance and resistance. The measurements were carried out in temperature range ( 305-343)K, at constant frequency (1KHz). The permittivity was found decreased with increasing temperature similar to the CP , and the relaxation process was pointed in the temperature spectrum of the imaginary part of the dielectric constant ε= related to α- process. Another result that was obtained was the dissipation factor which at a high temperature decreased with increasing temperature.