Catalytic synthesis of silicon carbide preceramic polymers: Polycarbosilanes. Research progress report, March 1, 1991--October 31, 1991

Technical Report · Fri Nov 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/10129303· OSTI ID:10129303

Berry, D H

Polycarbosilanes are the most successful and widely studied class of polymer precursors for silicon carbide, but traditional methods for thier synthesis are inefficient and nonselective. This project is focused on developing transition metal catalysts for the synthesis of polycarbosilanes and other perceramic 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-(SiR{sub 2}CR{prime}{sub 2}){sub n}-SiR{sub 3}. Future work will help elucidate the mechanism of the catalytic process, explore the use of hydrogen acceptors as reaction accelerators, and develop new and more active catalysts.

• Research Organization: Pennsylvania Univ., Philadelphia, PA (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-91ER14173
• OSTI ID: 10129303
• Report Number(s): DOE/ER/14173--1; ON: DE92008878
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601
360602
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
ALKENES
CATALYTIC EFFECTS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CHEMICAL PREPARATION
DEHYDROGENATION
POLYMERS
PREPARATION AND MANUFACTURE
PROGRESS REPORT
RUTHENIUM COMPLEXES
SILANES
SILICON CARBIDES
STRUCTURAL CHEMICAL ANALYSIS
STRUCTURE AND PHASE STUDIES