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Studies on ionics conduction properties of modification CMC-PVA based polymer blend electrolytes via impedance approach

N. F., Mazuki and Anwar, P. P. Abdul Majeed and Nagao, Y. and A. S., Samsudin (2020) Studies on ionics conduction properties of modification CMC-PVA based polymer blend electrolytes via impedance approach. Polymer Testing, 81 (106234). ISSN 0142-9418

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Abstract

In this study, the modification of cellulose derivative namely carboxymethyl cellulose (CMC) blended with polyvinyl alcohol (PVA) and doped with different content of NH4Br based solid polymer electrolytes (SPEs) prepared via solution casting method is investigated. The FTIR analysis demonstrated the interaction between CMC-PVA and NH4Br via COO−. The optimum ionic conductivity at ambient temperature is found to be 3.21 × 10−4 S/cm for the sample containing 20 wt% NH4Br with the lowest percentage of crystallinity and total weight loss. The conductivity-temperature relationship for the entire SPEs system obeys Arrhenius behaviour. Besides that, based on the Nyquist fitting analysis, it is shown that the ionic conductivity of the SPEs is primarily influenced by the ionic mobility as well as the ions diffusion coefficient. The H+ transference number obtained using non-blocking reversible electrode is 0.31, which further indicates that the conduction species is predominantly due to the cationic conduction.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Blending; Polymer characterization; Ionic conduction properties; H+ transference measurement
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Industrial Sciences And Technology
Faculty of Manufacturing Engineering
Institute of Postgraduate Studies
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 06 Feb 2020 08:42
Last Modified: 06 Feb 2020 08:42
URI: http://umpir.ump.edu.my/id/eprint/27742
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