On February 9, 2021, Bhadra, Pratiti; Siu, Shirley W. I. published an article.Formula: C10H22S The title of the article was Effect of Concentration, Chain Length, Hydrophobicity, and an External Electric Field on the Growth of Mixed Alkanethiol Self-Assembled Monolayers: A Molecular Dynamics Study. And the article contained the following:
Growing functionalized self-assembled monolayers (SAMs) with fewer defects and lower cost is the focus of ongoing investigations. In the present study, mol. dynamics simulations were performed to investigate the process of SAM formation on a gold substrate from mixed alkanethiolates in ethanol solution Using the mixed-SAM system of 11-mercaptoundecanoic acid (MUA) with either 1-decanethiol (C9CH3) or 6-mercaptohexanol (C6OH) in a 3:7 ratio as the standard SAM model, we systematically investigated the effects of the concentration, chain length, functional group, and an external elec. field on SAM growth. The results showed that the initial growth rate and surface coverage of the SAM are dependent on the ligand concentration At a certain high concentration (about 1.2-1.5 times the min. concentration), the final surface coverage is optimal. Reducing the chain length and increasing the proportion of hydrophobic diluting mols. are effective ways to improve the surface coverage, but the compositional ligands have to be changed, which may not be desirable for the functional requirements of SAMs. Furthermore, by investigating the behavior of the alkanethiolates and ethanol solvent under an applied external field, we find that a strong elec. field with a proper field direction can facilitate the generation of defect-free monolayers. These findings will contribute to the understanding of mixed-SAM formation and provide insight into exptl. design for efficient and effective SAM formation. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).Formula: C10H22S
The Article related to hydrophobicity alkanethiol self assembled monolayer md simulation, external elec field concentration, Surface Chemistry and Colloids: Solid-Liquid Systems and other aspects.Formula: C10H22S
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts