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Solid State Ionics, Vol.177, No.1-2, 197-201, 2006
Nanocomposites based on exfoliated NbWO6 nanosheets and ionic polyacetylenes
Nanocomposites based on exfoliated NbWO6 nanosheets and poly (A-methyl-2-ethynyl pyridinium iodide) (PNMe) or poly (N-octadecyl-2-ethynyl pyridinium bromide) (PNO) have been synthesized by exfoliation-reflocculation method. The XRD data of the NbWO6:PNMe nanocomposite indicates the formation of NbWO6/PNMe nanostructure with an interlayer expansion of 2.16 nm along the stacking direction of NbWO6 nanosheets. Whereas, the XRD data of the PNO:NbWO6 nanocomposite indicates the formation of NbWO6/PNO nanostructure with an interlayer expansion of 4.6 nm along the stacking direction of NbWO6 nanosheets. Formation of these nanocomposites is further supported by the results obtained by FT-IR spectroscopy, transmission electron microscopy and thermogravimetry. The values of electrical conductivity of the polymers and nanocomposites were also measured. (c) 2005 Published by Elsevier B.V.