LAUSR

Using eco-friendly organic compounds to control metallic corrosion in various corrosive media has extended to the use of polymers to inhibit metallic corrosion. In this paper, poly(1,5-diaminonaphthalene) (1,5-DAN) coatings were electrodeposited on the surface of a copper electrode using a potentiostatic technique under different conditions. The protection efficiency of the formed polymer in 0.6 M NaCl as an aggressive medium was investigated by open-circuit potential measurements, potentiodynamic polarization and electrochemical impedance spectroscopy. All of the anterior studies proved that the poly(1,5-DAN) formed at 0.7 V acts as an excellent coating for the copper (Cu) surface in 0.6 M NaCl and shows a high protective efficiency of approximately 99.9%. The surface morphology of the formed polymer was characterized by UV–visible absorption spectroscopy, FT-IR spectroscopy and scanning electron microscopy. All the analyses confirmed that poly(1,5-DAN) efficiently protects the Cu substrate.