title: Trichlorosilane isocyanate as coupling agent for mild conditions functionalization of silica-coated surfaces.
abstract: Despite the importance of the isocyanate group in chemistry, very few examples of isocyanate-modified silicas have been reported, and all of the strategies described so far led to partial or total hydrolysis or condensation of the isocyanate group. By synthesizing trichlorosilane isocyanate as the coupling reagent, we show that oxidized silicon wafers are successfully modified with the isocyanate group. Our method is achieved in mild conditions, at low temperature, without side-reactions and allows the formation of a self-assembled monolayer (SAM) of isocyanates. The isocyanate group then offers a flexible way to further functionalize silica substrates with different nucleophiles, due to its high and specific reactivity.
authors.affiliation: Chimie Moléculaire et Organization du Solide, UMR 5637 Case 007, Université Montpellier 2 Place Eugène Bataillon, 34095 Montpellier Cedex 05, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Ardès-Guisot
authors.forename: Jean-Olivier
authors.initials: JO
authors.lastname: Durand
authors.forename: Michel
authors.initials: M
authors.lastname: Granier
authors.forename: Aurore
authors.initials: A
authors.lastname: Perzyna
authors.forename: Yannick
authors.initials: Y
authors.lastname: Coffinier
authors.forename: Bruno
authors.initials: B
authors.lastname: Grandidier
authors.forename: Xavier
authors.initials: X
authors.lastname: Wallart
authors.forename: Didier
authors.initials: D
authors.lastname: Stievenard