Nanocomposites with Structure Domains of 0.5 to 3 nm by Polymerization of Silicon Spiro Compounds

摘要

In recent years a variety of methods has been developed to produce organic-inorganic hybrid materials with defined nanostructures in the size range of 2 to 100 nm. According to Sanchez and Ribot, these can be classified as type I and type II hybrids. The latter have covalent bonds between their single phases, while type I composites do not. Literature methods for the production of nanostructured type I hybrid materials-for example, by the use of organic polymer templates-have a lower size barrier of 2-3 nm. Therefore, new synthetic concepts are required to develop nanostructures with dimensions of 0.5-2 nm. Such nanostructured hybrid materials are of high scientific and technical interest, for example, as potential precursors for highly porous oxides or organic polymer networks for gas storage. For this reason, this area is being intensively investigated worldwide.