FIELD: organosilicon polymers.
SUBSTANCE: novel polycyclic poly- and copolyorganocyclocarbosiloxanes with variable cycle size including structural motif of general formula: , wherein (1) x=3 or 4 and y=1, (2) x=2 and y=2, (3) x=3, and suitable as preceramic templates for manufacturing oxygen-free silicon carbide ceramics are prepared by Würtz reaction in toluene via interaction of chloro-derivatives of organocarbosilanes with metallic sodium in the form of suspension.
EFFECT: enlarged assortment of preceramic templates.
2 cl, 1 tbl, 3 ex
Title | Year | Author | Number |
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POLYCYCLIC POLY- AND COPOLYORGANOCYCLOCARBOSILOXANES AS PRECERAMIC TEMPLATES FOR SILICON-CARBIDE-OXIDE CERAMICS | 2005 |
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Authors
Dates
2007-01-20—Published
2005-11-14—Filed