A facile route to prepare organic/inorganic hybrid nanomaterials by 'click chemistry'

Abstract

An organosilane with an alkyne group at the non-condensable end, [(2-propynylcarbamate)propyl]triethoxysilane, has been synthesized. Condensation of this organosilane with tetraethoxysilane can be achieved by a co-condensation strategy to produce silica nanoparticles with surface alkyne functionality. The size and uniformity of size distribution of the silica nanoparticles are influenced by varying the concentration of the added organosilane. The alkyne-functionalized silica nanoparticles are coupled directly with azidemodified polymers by 'click chemistry' to yield organic-inorganic hybrid nanomaterials. [Chemical equation presented] © 2009 WILEY-VCH Verlag GmbH & Co. KCaA.