Synthesis and characterization of the conductivity and polarization processes in supported ionic liquid-like phases (SILLPs)

► Supported ionic liquid-like phases (SILLPs) have been prepared. ► The conductivity has been investigated by means of dielectric impedance spectroscopy. ► The main structural component associated with the conductivity is the nature of the counteranion. ► When the NTf2− ion is present the conductivity is two orders of magnitude higher than the Cl− ion.