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Sains Malaysiana 43(6)(2014):
877–883
Ionic Liquid Incorporated PVC Based Polymer Electrolytes: Electrical
and Dielectric Properties
(Cecair Ionik Diperbadankan
dengan Polimer Elektrolit Berasaskan PVC:
Sifat Elektrik dan Dielektrik)
SITI KHATIJAH
DERAMAN1*, NOR
SABIRIN MOHAMED2
& RI HANUM
YAHAYA SUBBAN1
1Faculty of Applied Sciences, Universiti
Teknologi MARA, 40450 Shah Alam, Selangor Malaysia
2Centre for Foundation Studies in Science,
University of Malaya, 50603 Kuala Lumpur Malaysia
Received:
22 March 2013/Accepted: 2 August 2013
ABSTRACT
This paper is focussed on conductivity
and dielectric properties of Poly (vinyl) chloride (PVC)-
ammonium triflate (NH4CF3SO3)
- butyltrimethyl ammonium bis (trifluoromethyl sulfonyl) imide (Bu3MeNTf2N)
ionic liquid, electrolyte system. The electrolyte is prepared by
solution cast technique. In this work, the sample containing 30
wt. % NH4CF3SO3 exhibits the highest room temperature
conductivity of 2.50 × 10-7
S cm-1. Ionic
liquid is added in various quantities to the 70 wt. % PVC-30
wt. % NH4CF3SO3
composition in order to enhance the conductivity of
the sample. The highest conductivity at room temperature is obtained
for the sample containing 15 wt. % Bu3MeNTf2N with a value of 1.56 ×
10 -4 S cm-1.
The effects of ionic liquid addition on the frequency dependent
dielectric properties of PVC based electrolytes is
investigated by electrochemical impedance spectroscopy (EIS)
at room temperature. The values of dielectric constant were found
to increase with increasing conductivity of the samples. Analysis
of the ac conductivity data showed the electrolytes to be of the
non-Debye type.
Keywords: Dielectric properties; EIS; ionic liquid; non-Debye type
ABSTRAK
Kertas ini memberi tumpuan kepada kajian
konduktiviti dan dielektrik Poli (vinil) klorida (PVC)-
ammonium triflat (NH4CF3SO3)-
bis butyltrimethyl ammonium (Sulfonyl trifluoromethyl) imide (Bu3MeNTf2N), cecair ionik, sistem elektrolit.
Elektrolit telah disediakan dengan teknik cast penyelesaian. Dalam
penyelidikan ini, sampel yang mengandungi 30 %bt NH4CF3SO3 dipamerkan pada suhu bilik tertinggi
kekonduksian 2.50×10-7 S
cm-1. Cecair ionik kemudiannya
ditambah dalam kuantiti yang pelbagai 70 %bt PVC-30
%bt NH4CF3SO3
komposisi dalam usaha untuk meningkatkan kekonduksian
sampel. Kekonduksian tertinggi diperoleh pada suhu bilik 1.56×10-4 Scm-1
untuk sampel yang mengandungi 15 %bt Bu3MeNTf2N. Kesan sampingan cecair
ionik pada sifat frekuensi dielektrik bergantung kepada elektrolit
berasaskan PVC telah dikaji oleh spektroskopi impedans elektrokimia
(EIS)
dalam suhu bilik. Nilai pemalar dielektrik didapati telah meningkat
dengan peningkatan kekonduksian sampel. Analisis ac kekonduksian
data menunjukkan elektrolit adalah bukan dari jenis Debye.
Kata
kunci: Cecair ionik; EIS;
jenis bukan-Debye; sifat dielektrik
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*Corresponding author; email: rihanum43@salam.uitm.edu.my
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