Improved ionic conductivity in guar gum succinate–based polymer electrolyte membrane

Azzahari, Ahmad Danial and Abdul Mutalib, Nur Fazilah and Rizwan, Muhammad and Naceur Abouloula, Cheyma and Selvanathan, Vidhya and Sonsudin, Faridah and Yahya, Rosiyah (2018) Improved ionic conductivity in guar gum succinate–based polymer electrolyte membrane. High Performance Polymers, 30 (8). pp. 993-1001. ISSN 0954-0083

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Official URL: https://doi.org/10.1177/0954008318775790

Abstract

Guar gum succinate (GGS) was chemically modified by reacting guar gum with succinic anhydride in the presence of 4-dimethylaminopyridine. Succination was confirmed by Fourier transform infrared (FTIR) spectroscopy with carbonyl bands at 1724 cm −1 and ester linkage at 1567 cm −1 of the succinate group. The resulting amorphous, GGS was used as a polymer host to prepare cost-effective solid polymer electrolyte (SPE) films via incorporating a blend of ethylene carbonate (EC), carboxymethyl cellulose (CMC), lithium triflate (LiTf) and lithium iodide (LiI). SPE system for GGS:EC (1.0:0.6) with 30 wt% LiTf showed highest conductivity of 6.29 × 10 −5 S cm −1 and GGS:CMC:EC (0.5:0.5:0.6) with 25 wt% LiI showed highest conductivity of 2.10 × 10 −4 S cm −1 . FTIR revealed multiple complexation sites for ion mobility indicating that GGS possesses high prospects as a conductive SPE.

Item Type: Article
Uncontrolled Keywords: electrochemical impedance spectroscopy; Fourier transform infrared spectroscopy; Guar gum succinate; solid polymer electrolyte
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Centre for Foundation Studies in Science > Chemistry Division
Faculty of Science > Dept of Chemistry
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Sep 2019 08:22
Last Modified: 17 Sep 2019 08:22
URI: http://eprints.um.edu.my/id/eprint/22389

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