In recent years, significant advancement in the synthesis, characterization and association with different types of polymers, thermoplastics or reactive (thermosetting) systems of ionic liquids with tunable nature (ammonium, imidazolium, and phosphonium) open up new perspectives in the field of polymers, in particular in one of epoxy networks. It has been shown that ionic liquids (ILs) could contribute to host polymers as they can act as nanostructuring agents, interfacial agents of nanofillers (ionic exchanges with lamellar silicates or grafted onto silica nanofillers), or even as reagent intervening on the polymerization mechanism. Thus, enhanced physical behaviors (mechanical, surface, thermal resistance, etc.) which cannot be obtained w...