Epoxidised Natural Rubber Based Polymer Electrolyte Systems for Electrochemical Device Applications

Razali Idris; Noor Hidaya Bujang

doi:10.4028/www.scientific.net/AMR.896.62

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 896Epoxidised Natural Rubber Based Polymer...

Epoxidised Natural Rubber Based Polymer Electrolyte Systems for Electrochemical Device Applications

Abstract:

Epoxidized Natural Rubber (ENR50), lithium imide salt, [LiN(SO₂CF₃)₂] with and without solvent were prepared by solvent casting technique. Non solvated polymer electrolyte showed modest ionic conductivity at ambient temperature. To further enhance ionic conductivity a mixed solvent of ethylene carbonate/propylene carbonate was added into the system. Thermal characterization showed that single transition glass temperature (T_g) for all systems and amorphous phase is dominant. DSC traces of non solvated samples have shown T_g values increased whereas addition of mixed EC/PC solvent into the electrolyte system reduced their values respectively. Impedance measurements for the solvated epoxidized natural rubber (ENR) based electrolyte systems have shown optimal ionic conductivity 10^-4 S cm^-1 whereas 10^-6 S cm^-1 for a non solvated one. ENR electrolyte systems showed similar temperature dependence, which suggests that the conductivity is thermally activated.

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Advanced Materials Research (Volume 896)

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62-65

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https://doi.org/10.4028/www.scientific.net/AMR.896.62

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Online since:

February 2014

Authors:

Razali Idris*, Noor Hidaya Bujang

Keywords:

Epoxidized Natural Rubber (ENR), Glass Transition Temperature, Ionic Conductivity, Polymer Electrolyte

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