Enhancement of electrical conductivity in plasticized chitosan based membranes

Mattos, R.I. and Raphael, E. and Majid, Siti Rohana and Arof, Abdul Kariem and Pawlicka, A. (2012) Enhancement of electrical conductivity in plasticized chitosan based membranes. Molecular Crystals and Liquid Crystals, 554. pp. 150-159. ISSN 1542-1406

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Official URL: https://doi.org/10.1080/15421406.2012.633862

Abstract

Plasticized natural macromolecules-based polymer electrolyte samples were prepared and characterized. The plasticization of chitosonium acetate with glycerol increased the ionic conductivity value from 3.0 x 10(-7) S/cm to 1.1 x 10(-5) S/cm. The conductivity temperature relationship of the samples exhibits either VTF or Arrhenius type depending on the glycerol concentration in the sample. The dielectric studies evidencing the relaxation process in the plasticized sample at low frequency region are due to the electric polarization effect. Moreover, the samples were transparent in the Vis region, showed thermal stability up to 160 degrees C and good surface uniformity.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Chitosan; Gel polymer electrolytes; Ionic conductivity; Protonic conductor; Solid polymer electrolytes; Glass-transition; Gel electrolyte; Lithium; Glycerol; Films; Nanocomposites; Temperatures; Transport; Kinetics
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 17 Jul 2013 01:00
Last Modified: 27 Aug 2019 01:15
URI: http://eprints.um.edu.my/id/eprint/7696

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