Starting from ethylenediamine as the center of the molecule, and terminated by the four peripheral imidazole rings, a dendric derivative with tetra-imidazoline (DDTI) was synthesized. The results of weight loss method showed the inhibition efficiency of DDTI could approximately reach up to 98.29% when the inhibitor dosage was 400 mg L−1. Meanwhile, referring to the potentiodynamic polarization test, DDTI could be classified as a mixed-type inhibitor. What’s more, both electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM) illustrated that the adsorption between the inhibitors and metal surface was the crucial reason for the high efficiency. Meanwhile, it is interesting that the compact, dendrimer-like and multilayer ed inhibitor films covering on the metal surface regularly acted as the main reason for prominent performance.
Russian Journal of Applied Chemistry – Springer Journals
Published: Oct 25, 2015
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