Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Morphology of the Conducting Poly-N-vinylcarbazole-coated Silica Gel Nanocomposites

  • Basavaraja, C. (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Kim, Na-Ri (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Jo, Eun-Ae (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Revanasiddappa, M. (Department of Chemistry, PES School of Engineering) ;
  • Huh, Do-Sung (Department of Chemistry and Institute of Functional Materials, Inje University)
  • Published : 2010.02.20
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Abstract

We report the effect of surface morphology on the conductivity of the poly-N-vinylcarbazole (PVK)/silica gel ($SiO_2$) nanocomposites as a function of $SiO_2$ weight percentage (%).The polymerization of PVK was initiated by a free-radical polymerization. The surface morphology of the prepared composite shows the incorporation of $SiO_2$ in the prepared PVK-$SiO_2$ (PS) nanocomposites. The conductivity increased from $9.2{\times}10^{-5}S\;cm^{-1}$ to $9.6{\times}10^{-4}S\;cm^{-1}$ with the increase in the percentage of silica gel from 5 to 30%. The nanocomposites show a percolation behavior having a threshold value between 15 and 20%.

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References

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