Synthèse, Caractérisation de nouveaux ligands bases de Schiff en vue d’application dans la protection contre la corrosion et en biologie

Abstract

Two Schiff bases L and L’ were synthesized and characterized using Physico-chemical analysis techniques. The structure of the ligand L was determined by X-Ray Diffraction method. These compounds have been examined as corrosion inhibitors using electrochemical methods and gravimetry. The electrochemical properties were studied by using cyclic voltammetry. The two inhibitors are efficiently adsorbed by a chemisorption process on the surface of the mild steel. The adsorption of these compounds follows the Langmuir isotherm in the study medium. The UV-Vis and The SEM analysis confirm the adsorption of inhibitor molecules on iron surface by forming inhibitor-Fe complex. The antioxidant activity of the synthesized Schiff's bases was evaluated using several tests. The results show that these compounds have good reactivity and high inhibition efficiency. All experimental results were confirmed by DFT and MDS.