Additionally, we can mention that the high values of dielectric parameters observed in Fig. 7, compared to the dielectric
permittivity or loss tangent of other hydrocarbons, are due to the presence of ionic conductivity molecules (from electrolyte
used to swelling the sample before EIS analyses) inside the elastomer matrix. Nevertheless, it has not influence on the tendency explained by the relaxation behaviour of the composite dielectric elastomers, as the film thicknesses were well
controlled