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Multifunctional meth-acrylate alkoxysilanes. A new type of reactive compounds

: Glaubitt, W.; Rose, K.; Wolter, H.

Hampden-Smith, M.J. ; Materials Research Society -MRS-:
Better ceramics through chemistry V
Pittsburgh, Pa.: MRS, 1992 (Materials Research Society symposia proceedings 271)
ISBN: 1-558-99166-2
Symposium on Better Ceramics through chemistry <5, 1992, San Francisco/Calif.>
Conference Paper
Fraunhofer ISC ()
Alkoxy-Silan; Methacrylat; omocere; optical lense; Si-Verbindung; Silan; sol-gel

A new class of (meth)acrylate substituted alkoxysilanes has been developed. These are sythesized by addition of the H-S- or H.Si-unit of thiosilanes (e.g. H-S(CH2)3-SiCH3(OCH3)2) or hydrosilanes to one (meth)acrylate C=C bond ofcommercially available di-, tri-, tetra- or penta-(meth)acrylate compounds. The alkoxysilyl groups allow the formation of an inorganic Si-O-Si-network by a hydrolysis and polycondensation reaction (sol-gel process), and the (meth)acrylate groups are available for thermally or photochemically induced organic polymerisation. The elegant procedure for the synthesis of a wide variety of multifunctional alkoxysilanes and the preparation of optical lenses will be dicussed.