专利名称:Preceramic silicon polymers发明人:Blum, Yigal,McDermott, Gregory A.申请号:EP99123310.7申请日:19940517公开号:EP0989152A2公开日:20000329
专利附图:
摘要:Novel methods for the preparation of polymers useful as precursors to ceramicmaterials by catalytic activation of Si-H bonds are disclosed. The methods comprisereacting, in the presence of a catlyst effective to activate Si-H bonds, Si-N bonds, or both,and/or a reactive solvent, a polymer in the form of a polysilane, polysilazane,
polysiloxane or polycarbosilane with a reactant having the structural formula R-X-H,whrein X is NR' or O, R is H, organic, silyl, soloxyl, silazanyl or carboxilyl and may containat least one additional X-Hgroup, and R' is H, amino, sily or silazanyl, to produce amodified polymer containing at least one Si-X bond. Polymers produced by thesemethods are disclosed.
申请人:SRI INTERNATIONAL
地址:333 Ravenswood Avenue Menlo Park, California 94025-3493 US
国籍:US
代理机构:Mallalieu, Catherine Louise
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