Abstract
New corrosion inhibitors, namely, rosin poly(oxyethylene) ester 4,5-dihydroimidazole maleate Adduct (RIMA-PEG), have been synthesized from rosin acid natural product. The chemical structure of the prepared RIMA-PEG was confirmed by FTIR analysis. The effectiveness of the synthesized compound as corrosion inhibitor for carbon steel in 1M hydrochloric acid solution was investigated using electrochemical methods. Experimental data indicated that RIMA-PEG has shown a strong inhibitive effect for the corrosion of carbon steel in 1M HCl solution.