Enhancement of electrical conductivity in plasticized chitosan based membranes
Document Type
Article
Publication Date
1-1-2012
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.
Keywords
Chitosan, Gel polymer electrolytes, Ionic conductivity, Protonic conductor, Solid polymer electrolytes, Glass-transition, Gel electrolyte, Lithium, Glycerol, Films, Nanocomposites, Temperatures, Transport, Kinetics
Divisions
PHYSICS
Publication Title
Molecular Crystals and Liquid Crystals
Volume
554
Publisher
Taylor & Francis
Additional Information
Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA