Abstract
Encouraged by the excellent performance of dendrimers as scale inhibitors and anticorrisive coatings, we reasoned that dendrimers with properly designed structures might also be used as efficient water soluble corrosion inhibitors. New kind of dendritic polyether water soluble were synthesized using pentaerythritol tetracrylate as a precursor via Michael addition reaction with diethanolamine. The chemical structure of the prepared dendrimer was determined byFTIR, 13 C and 1H NMR analyses. The inhibitive effect of HPAE-PEG600 on the corrosion of steel in 1 M HCl solution has been investigated using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results indicated that HPAE-PEG600 inhibited the corrosion of steel and the extent of inhibition increased with HPAE-PEG600 concentrations. Potentiodynamic polarization data suggests mixed-mode of corrosion inhibition.