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Graphene oxide based nanocomposites were prepared through in-situ polymerization of aniline and pyrole to study the interaction of graphene oxide with polyaniline (PANI) and polypyrole (PPy). Field emission scanning electron microscopy (FESEM) was used to study the surface morphology and transmission electron microscopy (TEM) for the qualitative understanding of the internal structure of PANI/PPy coating on GO. The chemical structures of composites were studied through X-ray photoelectron spectroscopy (XPS) analysis. It was observed that, specific capacitance of PPy coated GO improved by ~122.73% comparing to pristine GO. Also, the binding energy of polypyrole-graphene oxide was found to be higher than polyaniline-graphene oxide due to the absence of oxygen containing functional groups. In addition, the storage capacity was effectively improved due to the synergistic effect of polypyrole coating on graphene oxide.

Acrylonitrile butadiene styrene (ABS)-polyaniline (PANI) and ABS-polypyrrole (PPy) blends exhibit poor mechanical and thermal properties due to their weak interfacial adhesion and inhomogeneous mixing. The properties have been improved by addition of carbon black (CB) and nanoclay (NC). Composites are prepared by mixing CB and NC with ABS-PANI and ABS-PPY blends. The morphology and crystalline characteristics are studied using field emission scanning electron spectroscopy (FESEM) and X-ray diffraction, respectively. In addition, all the composites have been analyzed for their mechanical and thermal performance. The tensile strength of ABS-PANI has been increased by 7.18% and 65.83% with addition of CB and a combination of CB-NC, respectively. FESEM images are found supportive with these trends and show homogeneous dispersion of CB in the polymer matrix, assisted by NC. Dynamic mechanical analysis results also show slight improvement of glass transition temperature (T g ) with addition of fillers.