Catalytic synthesis of silicon carbide preceramic polymers [electronic resource] : Polycarbosilanes. Technical research progress report, October 1, 1991--September 30, 1992
- Washington, D.C. : United States. Dept. of Energy, 1992. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 5 pages : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Polycarbosilanes are the most successful and widely studied class of polymer precursors for silicon carbide, but traditional methods for their synthesis are inefficient and nonselective. This project is focused on developing transition metal catalysts for the synthesis of polycarbosilanes and other preceramic polymers. In recent work we have developed the first homogeneous transition metal catalysts for the dehydrogenative coupling of simple alkyl silanes to oligomeric and polymeric carbosilanes, H-(SiR₂CR′₂)n-SiR₃. The coupling of alkylgermanes, however, yields the corresponding oligomeric poly(germanes) (Ge-Ge). Future work will help elucidate the mechanisms of these catalytic process, explore the use of hydrogen acceptors as reaction accelerators, and develop new and more active catalysts.
- Published through SciTech Connect., 10/01/1992., "doe/er/14173--t1", "DE93008634", Berry, D.H., and Pennsylvania Univ., Philadelphia, PA (United States)
- Type of Report and Period Covered Note:
- Annual; 01/01/1991 - 12/31/1992
- Funding Information:
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