Optimum use of organic corrosion inhibitors in coatings requires a better understanding of their protective mechanisms, including their orientation on steel substrates. The molecular orientation of N-oleoylsarcosine on steel was determined by a combination of specular reflectance Fourier transform infrared spectroscopy, ellipsometry, and electron spectroscopy. Studies suggest that it functions as a corrosion inhibitor by forming a chelate with the steel surface.
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