Organic-silica hybrids, construction

Functionalization of silica and montmorillonite These inorganic polymers are not suitable for organic reaction in solution because of its hydrophilicity. To remove this defect, it has been tried to construct inorganic-organic hybrid type compound by the treatment with SCR. By this process, the functional oup in SCR becomes an effective ligand for metal complex formation. The functionalized silica or montmorillonite was treated with metal ion in order to obtain immobilized catalyst. N,N-dimethyl-3-aminopropyltrimethoxysilane and N-2-aminoethyl-3-aminopropyltrimethoxysilane were used as SCR. From the silica with higher surface area immobilized catalyst FS-l(Fe) and FS-l(Cu) were obtained. From montmorillonite cobalt immobilized catalyst([I] and [II]) was derived. 

Alternating different layers of amino-functionalized silica nanoparticles (295 nm diameter) and epoxy-functionalized smaller silica nanoparticles (20 nm diameter), hybrid organic/inorganic surfaces have been constructed using the concept of covalent layer-by-layer assembly (covalent LbL) for the elaboration of films from polymers or den-drimers. ... 

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