Graphene/polyaniline nanocomposites, and derivatives were synthesized by the in-situ polymerization of aniline and derivatives on Graphene using ammonium persulfate to initiate the polymerization. The UV-Vis spectrum of PANI nanospheres displayed the characteristic absorption peak of p-p* transition of the benzenoid ring at 355 nm. The oxidation state of PANI nanospheres was identified with FT-IR spectroscopy by comparing the two bands at 1582 (ring stretching in quinoid unit) and 1498 cm-1 (ring stretching in bezenoid unit). The X-ray diffraction patterns demonstrated the low crystalline nature of PANI nanospheres. The morphology of PANI nanospheres was spherical and the mean diameter of nanospheres was found in the range of 5-12 nm. The thermal behavior of PANI nanospheres was studied by thermogravimetric analysis. The effect of doping of HCl and H2SO4 on Graphene-PANI nanospheres confirm enhancement in electrical conductivity. The products were also characterized using FTIR, SEM, TGA and powder XRD.

Graphene-polymer composites: Applications as conducting materials

247th National Meeting (2014)

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