Formation of cyclodextrin monolayer through a host–guest interaction with tailor-made Phenyltriethoxysilane (cas 780-69-8) self-assembled monolayer

Add time:07/14/2019    Source:sciencedirect.com

Host–guest systems have been widely used for nanostructure construction; however, studying host–guest behavior by immobilizing the guest molecule on a substrate's surface faces great challenges. In this study, Phenyltriethoxysilane (cas 780-69-8) (PTES) was selected as the ideal candidate to fabricate a guest molecule self-assembled monolayer (SAM). A remarkable PTES SAM growth mechanism, which includes two growth stages, was revealed. By controlling the PTES SAM formation in the first growth stage, the residual PTES ethoxyl groups will hydrolyze in a cyclodextrin (CD) aqueous solution, and the hydrolyzed PTES SAM, as a guest molecule, can provide suitable steric space for forming α- and β-CD inclusion complexes. The experiments demonstrated that the inclusion configurations for α- and β-CD SAMs are different, with the α-CD molecule tilting relative to the silica surface in order to include the PTES phenyl group; whereas the secondary surface of the β-CD remains parallel to the silica surface due to its large cavity. The results corroborated that this simple, yet effective, platform can be readily used to investigate host–guest systems, and it has huge potential for fabricating materials containing CD monolayers.

We also recommend Trading Suppliers and Manufacturers of Phenyltriethoxysilane (cas 780-69-8). Pls Click Website Link as below: cas 780-69-8 suppliers

Prev:Vibrational spectra of Phenyltriethoxysilane (cas 780-69-8), phenyltrimethoxysilane and their sol–gels
Next:Synthesis of radiation crosslinked poly(acrylic acid) in the presence of Phenyltriethoxysilane (cas 780-69-8))