OJPChem  Vol.5 No.4 , November 2015
Study the Frequency Dependence of Dielectric Properties of Gamma Irradiated PVA(1-x)PSx Polymer Blends
PVA(1-x)PSx (x = 0.0, 0.25, 0.50, 0.75 and 1.0) polymer blend films were prepared by simple solution cast method using mixer of dimethyl sulphoxide (DMSO) and double distilled water (DDW) as a common solvent. Gamma irradiation studies have been carried out to investigate the potential for improvements in the electrical properties of pure and blend polymer film. The induced changes in the dielectric constant (εr), dielectric loss (tanδ) and AC conductivity (σac) properties for the unirradiated and irradiated films were studied, in the frequency range 50 Hz - 5 MHz at room temperature (27°C). Further, it was seen that the frequency dependent dielectric constant, dielectric loss and AC conductivity were found to increase with increasing γ irradiation dose for all the PVA(1-x)PSx (x = 0.0, 0.25, 0.50, 0.75 and 1.0) polymer blends. The maximum σac at 1 kHz frequency was observed to be 2.4421 × 10-6 s/m (at room temperature) for PVA film irradiated at 1.5 kGy.

Cite this paper
Prabha, K. and Jayanna, H. (2015) Study the Frequency Dependence of Dielectric Properties of Gamma Irradiated PVA(1-x)PSx Polymer Blends. Open Journal of Polymer Chemistry, 5, 47-54. doi: 10.4236/ojpchem.2015.54006.
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