Dieiectric analysis of Poll,styrenc polymer film

Abstract

In this work an atternpt has been made to study the variousdielectric parameters of polystyrene film. The dielectric constant a',dielectric loss s" and loss tangent tan d have been determined in thefrequency range (l -1000)Kt1z at different temperatures- 'fhefrequency dependent conductivity o,, was also rneasured tocharacterize the polymer. The complex impedance plot (cole-coleplot) was used to calculate the static dielectric constant e., infinitell'large frequency dielectric constant s- and relaxation times. Finall-vthe results are analyzed in terrns of clifferent paranreters.