Method for hydrosilylating aliphatically unsaturated alkoxysilanes and hydrogen-terminated organosiloxane oligomers to prepare alkoxysilyl-terminated polymers useful for functionalizing polyorganosiloxanes using cobalt catalysts

摘要

The method for preparing the product is as follows: A) a siloxane oligomer having a silicon-bonded hydrogen atom, B) an alkoxysilane having at least one aliphatic unsaturated group capable of causing a hydrosilylation reaction, and C) a cobalt catalyst. Including, including combining starting materials, including. The present method can be used to produce compounds of formula (I) [Chemical Formula 1]. This compound can be used in a hydrosilylation reaction with vinyl-functional polyorganosiloxane. The resulting product comprises an ethyltrimethoxysilyl functional polyorganosiloxane useful in a condensation reaction curable sealant composition. [Selection diagram] None