Metal-free coumarate based ionic liquids and poly(ionic liquid)s as corrosion inhibitors

Mild steel is used extensively in infrastructure and its corrosion susceptibility is a severe issue both economically and with regards to safety. The toxicity of traditional chromate inhibitors requires the discovery of new non-toxic anti-corrosion solutions. Here we show metal-free organic ionic liquids that can be used as direct anodic and cathodic corrosion inhibitors or incorporated into a polymer coating. New p-coumarate methacrylic UV curable ionic liquids that can be used as direct corrosion inhibitors or incorporated into a polymer coating are reported.