Patent ID: 7452845
Filing Date: 2008-11-18
Classification: C07F

Abstract:
1. A process for preparing organic-inorganic hybrid materials with controlled porosity and functionality, comprising: a stage (a) of hydrolysis and polycondensation of a mixture of at least one compound of formula (I): in which: Z represents either a halogen atom selected from chlorine, bromine or iodine atoms, or an amino or phosphino group; R, R′ and R″, which may be the same or different, independently of each other, represent an alkyl radical containing 1 to 4 carbon atoms; R with at least one alkali or alkaline-earth silicate of formula (II) in a molar ratio (I)/(II)=1/9 in the presence of at least one nonionic surfactant in a micellar concentration to form a mesoporous silica represented by formula (III): said stage (a) being followed by a step (b) of anchoring, on the mesoporous silica of formula (III), an equivalent of an organic compound represented by (Δ)N—H comprising at least one group —NH— capable of reacting with the function Z of said mesoporous silica to form the functionalized mesoporous silica represented by formula (IV):