Investigation on dielectric relaxation Of PMMA-grafted natural rubber incorporated with LiCF3SO3

Yap, K.S. and Teo, L.P. and Sim, L.N. and Majid, Siti Rohana and Arof, Abdul Kariem (2012) Investigation on dielectric relaxation Of PMMA-grafted natural rubber incorporated with LiCF3SO3. Physica B: Condensed Matter, 407 (13). pp. 2421-2428. ISSN 0921-4526

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Official URL: https://doi.org/10.1016/j.physb.2012.03.039

Abstract

Natural rubber (NR) grafted with 30 wt% poly(methyl methacrylate) (PMMA) and designated as MG30 has been added with varying amounts of LiCF3SO3. X-ray diffraction (XRD) shows the samples to be amorphous. Fourier transform infrared (FTIR) spectroscopy indicates complexation between the cation of the salt and the oxygen atom of the C-O and -COO- groups of MG30. From electrochemical impedance spectroscopy (EIS), MG30 with 30 wt% LiCF3SO3 salt exhibits the highest ambient conductivity of 1.69 x 10(-6) S cm(-1) and lowest activation energy of 0.24 eV. The dielectric behavior has been analysed using dielectric permittivity (epsilon'), dissipation factor (tan delta) and dielectric modulus (M*) of the samples. The dielectric constant of pure MG30 has been estimated to be similar to 1.86. (C) 2012 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: mg30; xrd; ftir; conductivity; cyclic voltammetry activation energy; dielectric; polymer electrolytes; mechanical-properties; methyl-methacrylate; ionic-conductivity; lithium batteries; ftir; latex; spectra; styrene; oxide
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 16 Jul 2013 02:31
Last Modified: 27 Aug 2019 01:13
URI: http://eprints.um.edu.my/id/eprint/7704

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