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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Hydrosilylation Polymerisation
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The catalytic hydrosilylation of difunctional organosilicon monomers containing alkenyl- or alkynyl-groups and/or Si–H bonds has become a versatile synthetic tool for obtaining saturated or unsaturated organosilicon polymers bearing the Si–C bonds in the backbone. These important polymeric products have been prepared through two main routes: the intermolecular hydrosilylation polymerisation of alkenyl(alkynyl)hydrosilanes and the polyhydrosilylation of α,ω-dienes or diynes with dihydro-substituted organosilicon compounds. The chapter covers recent achievements on the synthesis of saturated polycarbosilanes and polycarbosiloxanes as well as unsaturated polycarbosilanes or related σ-π conjugated polymers using transition metal catalysed hydrosilylation polymerisation.