| 摘要 |
The invention relates to a layer or three-dimensional molded articles comprised of or composing an organically modified polysiloxane or a derivative thereof, the silicon atoms of which are completely or partially replaced with other metal atoms, wherein the organic share of the polysiloxane or derivative thereof has an organic cross-link with thiol-ene addition products bonded to silicon and/or to other metal atoms via carbon and/or oxygen, which are obtainable via a two-photon or multi-photon polymerization reaction, wherein the article has two areas with differing primary and/or secondary structures, available through the following process: a) Providing a substrate or a mold, b) Providing a material selected from sols, gels, and organically modified materials containing polysiloxanes, all of which contain metal and/or metalloid, wherein said provided material has free SH groups and isolated C═C double bonds, c) Applying or attaching the provided material on or to the substrate or pouring it into the mold, d) Selective exposure of a selected area of material located on the substrate or in the mold with the help of two-photon or multi-photon polymerization, e) Thermal and/or photochemical treatment of the entire material located on the substrate or in the mold, with the provision that steps d) and e) can be conducted in any sequence. The material provided in step (b) is preferably selected from: 1. A mixture comprised of and containing (a) a material having organic groups bonded to the metal/metalloid via an oxygen bridge or via a carbon atom, which are substituted with one or more SH groups, and (b) a purely organic compound, which has two or more isolated C═C bonds, 2. A mixture comprised of and containing (a) a material having organic groups bonded to the metal/metalloid via an oxygen bridge or via a carbon atom, which have one or more isolated C═C double bonds, and (b) a purely organic compound, which is substituted with two or more SH groups, and 3. A mixture comprised of and containing (a) a material having organic groups bonded to the metal/metalloid via an oxygen bridge or via a carbon atom, which are substituted with one or more SH groups, and (b) having organic groups bonded to the metal/metalloid via an oxygen bridge or via a carbon atom, which have one or more isolated C═C bonds. |
