Synthesis and characterization of epoxy-silicone-polythiophene interpenetrating polymer network for corrosion protection of steel

► Interpenetrating polymers were prepared, characterized and tested for corrosion and thermal properties. ► IR, NMR and SEM studies confirm the presence of epoxy-silicone-polythiophene within the interpenetrating polymers. ► The IPNs withstood beyond 270 °C with good adhesion which believably higher than conventional organic coatings. ► EIS studies showed that IPN coatings with lower silicone content exhibit excellent corrosion resistance.