Synthesis, Characterizations and Multifunctional Activities of New Thiourea-Based Non-Ionic Surfactants

摘要

Six new thiourea-based non-ionic surfactants were prepared from easily existing raw resources in good yield name 1-sec-buty1-3-dodecanoylthiourea, 1-dodecanoy1-3-phenylthiourea, 1,1dibuty1-3-dodecanoylthiourea, 3-dodecanoy1-1, 1-diphenylthiourea, 1-cyclohexy1-3-dodecanoylthiourea and 1-buty1-3-dodecanoylthiourea. The structural chemistry of these compounds was studied by multinuclear magnetic resonance (H-1, C-13), Infrared spectroscopy and UV-Visible spectrophotometry techniques. Their solubility varies according to temperature. They show a low solubility, which increases with the temperature of the water. However, they are not stable. The are soluble in organic solvent like ethanol. These molecules possess a low critical micelle concentration and due to this it shows that they are moderately hydrophobic. These molecules were studied regarding their antimicrobial activities and their antifungal and antibacterial efficiency was tested against five microoganism strains. In all cases, the new compounds show a significant inhibition growth against the tested five bacterial and fungal strains. Due to these behaviors they can be used as future candidates in cleaning as well as in agriculture features. The corrosion inhibition behavior was also studied using chromium and aluminum metals.