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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 2
BKCSDE 31(2)
February 20, 2010

Title	Morphology of the Conducting Poly-N-vinylcarbazole-coated Silica Gel Nanocomposites
Author	C Basavaraja, Na Ri Kim, Eun Ae Jo, M Revanasiddappa, Do Sung Huh*
Keywords	DC conductivity, Morphology, Percolation, Poly-N-vinylcarbazole, Silica
Abstract	We report the effect of surface morphology on the conductivity of the poly-N-vinylcarbazole (PVK)/silica gel (SiO₂) nanocomposites as a function of SiO₂ weight percentage (%).The polymerization of PVK was initiated by a free-radical polymerization. The surface morphology of the prepared composite shows the incorporation of SiO2 in the prepared PVK-SiO₂ (PS) nanocomposites. The conductivity increased from 9.2 × 10^?5 S cm^-1 to 9.6 × 10^?4 S cm^?1 with the increase in the percentage of clay from 5 to 30%. The nanocomposites show a percolation behavior having a threshold value between 15 and 20%.
Page	298 - 302
Full Text	PDF

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