Corrosion protection of copper using polypyrrole electrosynthesised from a salicylate solution

► Electrodeposition of polypyrrole doped with salicylate anions on copper. ► Assessment of the corrosion protection properties of the polymer coating. ► Corrosion potential more positive and smaller corrosion currents for the coated Cu. ► OCP of the coated Cu shifted towards more positive potential and stable for weeks. ► Ability of the polymer to prevent copper dissolution confirmed by EIS measurements.