“…Further, the significant increase in ε′ and ε″ values of these materials with increase of clay concentration may also be related to the formation of a percolation structure of the nanoparticles, which is confirmed by dielectric investigation on nanocomposites [37]. Pure EG, PVP-EG blends and MMT clay loaded PVP-EG blends have a large increase in the ε′ values in the lower frequency side of the spectra (Figure 1), which is mainly due to the contribution of the electrode polarization (EP) [8,[21][22][23][24] and Maxwell-Wanger (MW) interfacial polarization [38,39]. Further, the ε′ values of the MMT clay loaded PVP-EG blends monotonously increases with the increase of clay concentration, which suggests the enhancement in number of free Na + cations and their mobility in the increased spacing of intercalated clay galleries.…”