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Viscoelastic and high ion conducting gum tragacanth-based gel polymer electrolytes
VINEY SHARMA NARINDER ARORA RAJIV KUMAR SUNAINA VERMA SHUCHI SHARM
Volume 46 Published: 14 March 2023 Article ID 0050
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https://www.ias.ac.in/article/fulltext/boms/046/0050 -
Keywords
Gel polymer electrolyte ;conductivity ;thermal studies ;thixotropy. -
Abstract
Gum tragacanth (GT) based gel polymer electrolytes (GPEs)/hydrogels have been synthesized using deionized water (DW) and NaOH salt, and characterized through ionic conductivity, Fourier transform infrared (FTIR), pH, thermal and mechanical studies. Ionic conductivity decrement of liquid and GPEs was observed with the increase of temperature that contradicts pre-existing theoretical equation, i.e., ${\sigma}$ = ${\sigma}_o$ exp.(-Ea/kT) and maximum ionic conductivity of 8.75 ${\times}$ 10$^{–2}$ S cm$^{–1}$ observed for GPE containing 0.625 M NaOH salt at 30°C. Effect of temperature on pH has been investigated for different GPEs and the results were also supported by FTIR studies by formation of new and disappearance of old peaks. Thermogravimetric analysis studies involved the measurements of $T_g$ for GPEs with the incorporation of different concentrations of NaOH salt, supported by DTG thermograms. Viscoelastic behaviour of GPEs with and without salt have been described by rheological studies at 30°C. In spite of that, time-dependent high structure recovery ratio pointed out the sol to gel transition in GPEs after the removal of applied shear rate. Due to high ion conducting, thermally and mechanically strengthened GPEs-based materials may make them applicable for their use in different device applications.
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Author Affiliations
VINEY SHARMA1 2 3 NARINDER ARORA1 RAJIV KUMAR2 SUNAINA VERMA4 SHUCHI SHARM2
- Department of Physics, D.A.V. College, Amritsar 143001, India
- Department of Physics, G.G.D.S.D. College, Hoshiarpur 144208, India
- Department of Physics, Panjab University, Chandigarh 160014, India
- Deparment of Engineering and Technology, IKG Punjab Technical University, Kapurthala 144603, India
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Dates
- Published
- 14 March 2023
- Manuscript received
- 19 September 2022
- Accepted
- 17 November 2022
- Final version published online
- 14 March 2023
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Bulletin of Materials Science
Volume 46, 2023
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