Based on silicon and oxygen backbone, silicones are high-performance polymers. Their properties can be tuned by modifying organic groups on silicon atom. To build the polysiloxane chain, the hydrosilylation reaction, i.e. addition of hydrosilane or hydrosiloxane moiety across a carbon-carbon double bond, is a key reaction not only for synthesis of functional silanes of polysiloxanes but also for the manufacturing of silicone materials. Although hydrosilylation has been known for more than 50 years, industrial catalytic systems are manly based on Platinum (choloroplatinic acid, Karstedt catalyst).<br/>Up to date, focusing on activity and selectivity, Karstedt catalyst remains the best catalyst known for hydrosilylation in silicon media. For many reasons, in particular economical ones, the development of original platinum-free catalysts for the hydrosilylation reaction and crosslinking of silicone materials is nowadays an important target. Alternatives catalysts based on other metals such as rhodium, iridium, ruthenium, nickel and more recently iron or cobalt have been also developed.<br/>In the present work we investigated metal complexes bearing specific ligand based on first row late transition metals for hydrosilylation of olefins (such as octene…) and crosslinking under inert and non-inert atmosphere silicone materials.<br/>

New catalyst for alkene hydrosilylation reactions and crosslinking of silicones

256th National Meeting (2018)

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