Process for the cleavage of silicon-silicon bonds and/or silicon-chlorine bonds in mono-, poly- and/or oligosilanes
AssigneeMomentive Performance Materials Inc.
InventorsNorbert Auner, Max C. Holthausen, Felix Neumeyer
Life of this patent
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Abstract
The invention relates to a method for cleaving silicon-silicon bindings and/or silicon-chlorine bindings in monosilanes, polysilanes, and/or oligosilanes. According to the invention, the monosilane, polysilane, and/or oligosilane is dissolved or suspended in an ether or in an ether-hydrochloric acid solution. Said method is used for example for preparing halogenated oligosilanes from halogenated polysilanes and for preparing siloxanes from organochlorosilanes and chlorinated monosilanes. Said method is particularly simple to carry out and as a result is economical.
Claims17
A method for the cleavage of one or more silicon-silicon bonds in one or more polysilanes, which are substituted by at least one substituent selected from the group consisting of halogen atoms and organic groups,
- said method comprising dissolving or suspending the one or more polysilanes in an ether-HCl solution, which is obtained by introducing HCl gas into the ether, to effect the cleavage of the at least one silicon-silicon bond to prepare a mixture including Si2Cl6.
Dependencies are inferred from the claim text.