As per your question if graphene have been incorporated in the matrix the following characterizations can be done: XRD, FTIR, TGA, SEM, TEM, XPS, Raman spectroscopy etc. Fourier-transform infrared (FTIR) spectra and X-ray diffraction (XRD) patterns will demonstrate the graphene oxide was reduced during the in-situ polymerization and the surface morphology can be studied by scanning electron microscopy (SEM). The XPS will help to detect the presence of C-C bond i.e. 1s XPS spectrum a peak centered at~284.5 eV indicate that the carbons are mainly C-C bonded.
I thank Mr.Arnab, Mourad's and Paresh. If the phenolic composite has few other components like Kevlar, PAN, steel, copper, metal sulfides, BaSO4, Mica, vermiculite then! will the above characterization technique work? if it is possible to show the graphene presence in the composite which one of the above will be most suitable?