Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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AC Conductivity Studies of Polyaniline-polymannuronate Nanocomposites

  • Basavaraja, C. (Department of Chemistry and Institute of Functional Material, Inje University) ;
  • Kim, Na-Ri (Department of Chemistry and Institute of Functional Material, Inje University) ;
  • Jo, Eun-Ae (Department of Chemistry and Institute of Functional Material, Inje University) ;
  • Pierson, R. (Department of Chemistry and Institute of Functional Material, Inje University) ;
  • Huh, Do-Sung (Department of Chemistry and Institute of Functional Material, Inje University)
  • Published : 2009.07.20
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Abstract

Temperature and frequency dependent AC conductivity behavior has been studied for the chemically synthesized polyaniline-polymannuronate (PANI-PM) composites. The temperature (300 - 500 K) and frequency (100 - $10^6$ Hz) dependent AC conductivity suggests evidence for the transport mechanism in PANI-PM composites. The frequency dependence of AC conductivity has been investigated by the power law. The frequency exponent (s) is determined, and the data suggest that s decreases with temperature. The variation of s with temperature suggests that AC conduction is due to the correlated barrier hopping.

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