Trichlorosilane isocyanate as coupling agent for mild conditions functionalization of silica-coated surfaces.
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.
Ardès-Guisot
Nicolas
N
Chimie Moléculaire et Organization du Solide, UMR 5637 Case 007, Université Montpellier 2 Place Eugène Bataillon, 34095 Montpellier Cedex 05, France.
Durand
Jean-Olivier
JO
Granier
Michel
M
Perzyna
Aurore
A
Coffinier
Yannick
Y
Grandidier
Bruno
B
Wallart
Xavier
X
Stievenard
Didier
D