Structural and electrical characterization of hexanoyl chitosan- LiClO 4-TiO2-DMC polymer electrolytes

• Published in: Key Engineering Materials
• Main Author: Muhammad F.H.; Subban R.H.Y.; Winie T.
• Format: Conference paper
• Language: English
• Published: Trans Tech Publications Ltd 2014
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891870648&doi=10.4028%2fwww.scientific.net%2fKEM.594-595.608&partnerID=40&md5=da67fd8e30a98057850ad7c8663fcd96

Hexanoyl chitosan-based polymer electrolytes were prepared using the solution casting technique. The effect of dimethyl carbonate (DMC) plasticizer on the structural and electrical properties of the prepared electrolyte system was investigated by X-ray diffraction and impedance spectroscopy, respectively. Upon addition of 15 wt. % of DMC, the ionic conductivity was increased to 4.09 x 10-4 S cm-1 from 3.06 x 10-4 S cm -1. The XRD results revealed the variation in conductivity from the structural aspect. For example, sample with lower crystallinity exhibits higher conductivity. The Rice and Roth model was employed to understand the variation in conductivity on the basis of number and mobility of free ions. Copyright © 2014 Trans Tech Publications Ltd, Switzerland.