Influence of Propylene Carbonate as A Plasticizer in CMC-OA Based Biopolymer Electrolytes: Conductivity and Electrical Study

Carboxyl methylcellulose (CMC) doped with oleic acid (OA) and plasticized with propylene carbonate (PC) was successfully manufactured into thin film using solution cast technique. Impedance study shows the ionic conductivity falls into two region. With the addition of 5wt% of PC the ionic conductivity falls from 2.11x10-5S/cm to 2.00x10-7 S/cm. The highest conductivity gained at ambient temperature is 2.52x10-7 S/cm for sample CMC-OA-PC 10 wt. %. The system obeys the non-Debye dependence based on the dielectric and modulus study.