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Abstract
Polyvinyl alcohol (PVA) as well as polyvinyl chloride (PVC) and triglycine sulphate (TGS) were mixed with different weight fractions in order to have polymer-ferroelectric [(PVA-TGS) and (PVC-TGS)] composites. The dielectric permittivity in the ferroelectric phase of TGS plays an important role in controlling the effective dielectric constant (ε') of the PVA-TGS composite. For PVC-TGS composite the ferroelectric counterpart was found to be responsible for triggering relaxation peaks in the TGS-PVC composite. Poling effect was found to lower ε’ in the ferroelectric phase due to the increase of internal biasing field.