(Pengaruh
Pemplastik Dimetil Karbonat ke atas Kekonduksian Ionik Elektrolit Polimer
Berasaskan Metil Selulos)
M.F. Mustafa1, N.I.M. Ridwan1,
F.F. Hatta1, M.Z.A. Yahya2*
1Centre of Foundation Studies,
UniversitiTeknologi MARA, Kampus Puncak Alam, 42300
Bandar Puncak Alam, Selangor, Malaysia
2Faculty of Applied Sciences,
Universiti Teknologi
MARA, 40450 Shah Alam, Selangor, Malaysia
*Corresponding author: mfiza@salam.uitm.edu.my
Abstract
Influences
of dimethyl carbonate (DMC) plasticizer on ionic conductivity, dielectric
permittivity and electrical modulus formalism of methyl cellulose (MC)-based
polymer electrolytes have been studied. The room temperature electrical
conductivity as measured by impedance spectroscopy shows that a methyl
cellulose film has a conductivity of ~10-10 S cm-1. In
this study, other than KOH ionic dopant, DMC plasticizer is also added to the
polymer with the aim of enhancing the electrical conductivity of the polymer.
The highest room temperature conductivity of the plasticized sample is ~10
-5 S cm-1. The plot of log σ versus 103/T for
the highest conducting sample obeys Arrhenius rule indicating that the
conductivity occurs by thermally activated mechanism.
Keywords: methylcellulose,
ionic conductivity, dimethyl carbonate, Arrhenius rule
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