Effects of Water Soluble Rosin on the Corrosion Inhibition of Carbon Steel

摘要

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 theprepared RIMA-PEG was confirmed by FTIR analysis. The effectiveness of the synthesized compoundas corrosion inhibitor for carbon steel in 1M hydrochloric acid solution was investigated usingelectrochemical methods. Experimental data indicated that RIMA-PEG has shown a strong inhibitiveeffect for the corrosion of carbon steel in 1M HCl solution.