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Ionic conductivity and dielectric studies of LiClO₄ doped poly(vinylalcohol)(PVA)/chitosan(CS) composites

Sunil G. Rathod

Department of Physics, Mangalore University, Mangalagangotri 574 199, Karnataka, India

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R. F. Bhajantri

Department of Physics, Karnatak University, Pavate Nagar, Dharwad 580 003, Karnataka, India

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V. Ravindrachary

Department of Physics, Mangalore University, Mangalagangotri 574 199, Karnataka, India

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P. K. Pujari

Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, Maharastra, India

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, and

T. Sheela

Department of Physics, Mangalore University, Mangalagangotri 574 199, Karnataka, India

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https://doi.org/10.1142/S2010135X14500337Cited by:37 (Source: Crossref)

Abstract

This paper focuses on the dielectric constant (ε′), dielectric loss factor (ε″) and frequency dependent conductivity (σ_ac) properties of newly prepared poly(vinylalcohol) (PVA) chitosan (CS) composite films incorporated with different concentrations of LiClO₄. The composite films were prepared using solution casting technique. The complexation between salt and polymer host is confirmed by FT Raman and UV-Vis studies. The sample containing 20 wt.% LiClO₄ exhibits a highest ionic conductivity of 3 × 10^-6 S/cm at room temperature. The dielectric properties of the composites follow non-Debye behavior.

This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution 3.0 (CC-BY) License. Further distribution of this work is permitted, provided the original work is properly cited.

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