Corrosion of the mild steel electrode with electrochemically formed aniline oligomers coating in 3% NaCl
has been investigated by the means of electrochemical techniques and UV–vis spectroscopy. It has been
shown that aniline oligomer coating, among barrier protection mechanism, change the mechanism of the
oxygen reduction reaction from 4 to 2-electron path lowering the corrosion rate. The aniline oligomers
structure has been slightly changed during the corrosion processes.