Fig. 3: Nanostructure of PBDT + GO nanocomposite film.
From: Strong graphene oxide nanocomposites from aqueous hybrid liquid crystals
WAXS and SAXS scattering results measured at α = 0° (film edge-on scattering) for PBDT + GO nanocomposite films cast from Ctotal = 1.7 wt.% (I phase) and 7.1 wt.% (hNb phase). In WAXS patterns, distinct intramolecular and intermolecular periodicities in PBDT are only observed in nanocomposite films prepared from fully monophasic hNb mixture. The stronger azimuthal dependence of PBDT scattering in films cast from Ctotal = 7.1 wt.% indicates uniplanar distribution of PBDT rods i.e. a collapsed version of the hNb phase wherein the directors are orthogonal with nP in the film plane and nGO normal to the film giving rise to the stratified morphology. In these nanocomposites, the highly anisotropic meridional scattering from SAXS measurements indicates PBDT aggregates and GO platelets have in-plane orientation.
