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Computer simulation of alternate conductivity of polymer system

S. MINÁRIK1,* , M. KUBLIHA1, V. LABAŠ1, J. KALUŽNÝ1

Affiliation

  1. Department of Nonmetallic Materials, Faculty of Materials Sciences and Technology in Trnava, Slovak University of Technology in Bratislava, Slovakia

Abstract

The classical model of electrical conduction was used for simulation of alternate conductivity frequency dependence σ(ω) of polymeric material at low frequency range. We assumed that the simple classical kinetic theory is applicable for description of drif mobility of the charge carriers bounded in the polymer material structure. Harmonic forced oscillators approximation was used for the simulation of the polymer AC conductivity in the framework of simple Drude`s approach. Dependence σ(ω) of polymehylmethacrylate (PMMA) was measured experimentally at the frequency range from 12 Hz up to 300 kHz and the observed experimental data was compared with the result of simulation. We concluded that it is necessary to optimize the applied simulation process for the reason of macromolecular character of polymer structure. Systems of different types of oscillating charge carriers with properties distinguishable each other coupled in the polymeric chains was considered and the superposition principle was used for the determination of simulated dependence σ(ω) optimization.Good agreement of the experimental data with the results of alternate conductivity frequency dependence simulation was reached in this way at the investigated frequency range..

Keywords

Alternate conductivity, Polymehylmethacrylate, Harmonic forced oscillator.

Submitted at: May 25, 2006
Accepted at: July 20, 2006

Citation

S. MINÁRIK, M. KUBLIHA, V. LABAŠ, J. KALUŽNÝ, Computer simulation of alternate conductivity of polymer system, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 4, pp. 1524-1527 (2006)