THERMAL ACTIVATION OF CONDUCTING POLYMER POLYPYRROLE/ZEOLITE

 

M.T.Z. Emma, Z.A. Talib, M.K. Halimah, H.A.A. Sidek

 

Department of Physics, Faculty of Science

Universiti Putra Malaysia,

43400 UPM, Serdang, Selangor, Malaysia

 

Corresponding author: email: eemmss79@yahoo.com

 

ABSTRACT

 

In this paper the influence of dopant on the electrical properties of polymer prepared by chemical oxidative polymerization method is investigated using the four point probe technique. Polymers are formed by using Pyrrole and Iron (III) Chloride Hexahydrate (FeCl3.6H2O) as well as Zeolite as dopant. The current-voltage was measured from 20 to 300 K. The current-voltage characteristic of all samples shows that the measured voltage increased linearly with current. It was found that conductivity increases with temperature and concentration of the dopant. As expected, the D.C. conductivity of Polypyrrole/Zeolite was found slightly higher than Polypyrrole which to be considered that Zeolite have altered and enhanced the conductivity of the samples. The increases of conductivity may consider have improved the thermal stability of the blends. An explanation is proposed based on the character and conduction mechanism of FeCl3/Polypyrrole/Zeolite.

 

 

REFERENCES

 

 [1].             J.H. Chen, Z.P. Huang, D.Z. Huang, D.Z. Wang, S.X. Yang, W.Z. Li, J.G. Wen and  Z.F. Ren, Synthetic Metals, 125, 289-294 (2001).

 [2].             K. Jurewicz, S. Delpeux, V. Bertagna, F. Beguin and E. Frackowiak, Chemical Physics Letter, 347, 36-40 (2001).

 [3].             C.W. Lin, B.J. Hwang and C.R. Lee, Materials Chemistry and Physics, 55, 139-144 (1998).

 [4].             V.T. Truong, P.K. Lai, B.T. Moore, R.F. Muscat, M.S. Russo, Synthetic Metals, 110, 7-15 (2000).

 [5].             R. Erlandsson, O. Inganas, I. Lundstron, and W.R. Salaneck, Synthetic Metals, 10, 303-318 (1985).

 [6].             Y.C. Liu & C.J. Tsai, Journal of Electroanalytical Chemistry, 537, 165-171 (2002).

 [7].             E. Vitoratos, S. Sakkopoulos, E. Dallas, P. Malkaj and Ch. Anestis, Current Applied Physics, 7, 578-581 (2007).

 [8].             S.A. Waghuley, S.M. Yenorkar, S.S. Yawale and S.P. Yawale, Sensors and Actuators, B 128, 366-373 (2008).

 [9].             L. Bredas, B. Themans, J.M Andre, R.R. Chance and R. Silbey, Synthetic Metals, 9, 265-274 (1984).

[10].           V.N. Prigodin & A.J. Epsteins, Synthetic Metals, 125, 43-53 (2002).