Conductivity and Transport Properties Study of Plasticized Carboxymethyl Cellulose (CMC) Based Solid Biopolymer Electrolytes (SBE)

Abstract:

Solid biopolymer electrolytes (SBE) comprising carboxymethyl cellulose (CMC) with NH₄Br-EC were prepared by solution casting method. The samples were characterized by impedance spectroscopy (EIS) and sample containing 25wt. % of NH₄Br exhibited the highest room temperature conductivity of 1.12 x 10^-4 S/cm for salted CMC based SBE system. The ionic conductivity increased to 3.31 x 10^-3 S/cm when 8 wt. % of ethylene carbonate (EC) was added to the highest conductivity. The conductivity-temperature of plasticized SBE system obeys the Arrhenius relation where the ionic conductivity increases with temperature. The influence of EC addition on unplasticized CMC based SBE was found to be dependent on the number and the mobility of the ions. This results revealed that the influence of plasticizer (EC) which was confirmed play the significant role in enhancement of ionic conductivity for SBE system.

• Periodical: Advanced Materials Research (Volume 856)
• Pages: 118-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.856.118
• Online since: December 2013
• Authors: A. S. Samsudin, Mohd Ikmar Nizam Mohamad Isa
• Keywords: Ionic Conductivity, Plasticizer, Transport Study

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