Solid State Science and Technology, Vol. 16, No 1 (2008) 1-7

ISSN 0128-7389

Corresponding Author:



N.A.A. Razak, T. Winie, F.S.A. Ghani and A.H. Ahmad

Institute of Sciences, Faculty of Applied Sciences, University Teknologi MARA,

40450 Shah Alam, Selangor, Malaysia


New polymer electrolytes using Chitosan and Poly(vinyl alcohol)[PVA] with different weight percent (wt%) have been prepared using solution cast technique. The low conductivity of this system (S/cm) was enhanced due to the dissociation of lithium trifluoromethanesulfonate (LiCF3SO3) added to the blend. The ac conductivity of the polymer electrolytes has been investigated by using impedance spectroscopy method in the frequency range of 100 kHz to 5 MHz at room temperature. Result for conductivity studies has shown that the sample with 45% lithium trifluoromethanesulfonate exhibits the highest conductivity of 1.241 x 10-4 S/cm at room temperature. The enhanced conductivity observed was due to complexation occurred between the Li+ cation and the lone pair electron of the nitrogen (N) and oxygen (O) atoms present in the polymer blend. Infrared spectroscopy was employed to confirm the polymer-salt complexation.



[1]. A.M.M. Ali, N.S. Mohamed and A.K. Arof, (Jan 1998); Polyethylene Oxide

(PEO)-Ammonium Sulfates ((NH4)2SO4) Complexes and Electrochemical Cell

Performance, J.Power Sources, 74, 135-141.

[2]. S. Rajendran, M. Sivakumar and R. Subadevi, (2004); Li-ion Conduction of

Plasticized PVA Solid Polymer Electrolytes Complexed with Various Lithium

Salts. Solid State Ionics, 167, 335-339.

[3]. Sahzada Ahmad, T. K Saxena, Shariff Ahmad and S. A. Agnihotry, The Effect

of Nanosized TiO2 Addition on Poly(Methylmethacrylate) Based Polymer

Electrolytes, J. Power Source, Online Journal, 2006.

[4]. C. Schoenenberger, J.F. Le Nest and A. Gandini,(1995); Polymer Electrolytes

Based On Modified Polysaccharides - 2. Polyether-Modified Cellulosics,

Electrochimica Acta, 40, 2281-2284.

[5]. Tan Winie and A. K. Arof, (2004) Dielectric Behaviour and AC Conductivity

of LiCF3SO3 Doped H-Chitosan Polymer Films, J. Ionics, 10, 193-199.

[6]. T. Koyano, N. Koshizaki, H. Umehara, M. Nagura and N. Minoura, (2000);

Surface States of PVA/Chitosan Blended Hydrogels, Polymer, 41, 4461-4465.

[7]. S.J. Kim, S.J. Park and S.I. Kim, (2003); Swelling Behavior of

Interpenetrating Polymer Network Hydrogels Composed of Poly(Vinyl

alcohol) and Chitosan, Reactive and Functional Polymers, 55, 53-59.

[8]. S. Rajendran, M. Sivakumar and R. Subadevi, (2003) Effect of Salt

Concentration in Poly(vinyl alcohol)-based Solid Polymer Electrolytes, J.

Power Sources, 124, pp. 225-230.

[9]. S. Ramesh, T.F. Yuen and C.J. Shen, (May 2007); Conductivity and FTIR

Studies on PEO-LiX [X: CF3SO3

-, SO4

2-] Polymer Electrolytes,

Spectrochimica Acta Part A, Online Journal.

[10]. B. Natesan, N.K. Karan, M.B. Rivera, F.M. Aliev and R.S. Katiyar, (2006);

Segmental Relaxation and Ion Transport in Polymer Electrolyte Films by

Dielectric Spectroscopy, J. Non-Crystalline Solids, 352, 5205-5209.

[11]. T. Winie and A. K. Arof, (2006) FTIR Studies on Interactions Among

Components in Hexanoyl Chitosan-based Polymer Electrolytes, J.

Spectrochimica Acta Part A, 63, 677-684.

[12]. F.M. Gray, (1997); Solid Polymer Electrolytes, Fundamentals and Technology

Applications, The Royal Society of Chemistry, United Kingdom.

[13]. A.A. Chialvo and J.M Simonson, (2007); Ion Pairing and Counterion

Condensation in Aqueous Electrolyte and Polyelectrolyte Solutions-Insights

from Molecular Simulation, J. Molecular Liquids, 134, 15-22.

[14]. A.A. Mohamad, N S. Mohamed, M.Z.A. Yahya, R. Othman, S. Ramesh, Y.

Alias and A.K. Arof, (July 2002), Ionic Conductivity Studies of Poly(vinyl

alcohol) Alkaline Solid Polymer Electrolyte and Its Use in Nickel–Zinc Cells,

Solid State Ionics, 156, 171-177.

[15]. M.Z.A. Yahya and A.K. Arof, (Nov 2002); Effect of Oleic Acid Plasticizer on

Chitosan Lithium Acetate Solid Polymer Electrolytes, J. European Polymer,

39, 897-902.

[16]. Z. Osman, A.K. Arof, (Nov 2002); FTIR Studies of Chitosan Acetate Based

Polymer Electrolytes, Electrochimica Acta, 48, 993-999.

[17]. A.K. Arof, N.M. Morni and M.A. Yarmo, (1998); Evidence of Lithium–

Nitrogen Interaction in Chitosan–based Films from X-ray Photoelectron

Spectroscopy, B 55, 130-133.

[18]. A.K. Arof, Novel Chitosan-Based Electrochemical Devices for Future

Developments. Universiti Malaya, Malaysia 2006.