학술논문

Catalytic synthesis of silicon carbide preceramic polymers: Polycarbosilanes. Research progress report, March 1, 1991--October 31, 1991
Document Type
Technical Report
Author
Source
Other Information: PBD: Nov 1991
Subject
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE RUTHENIUM COMPLEXES
CHEMICAL PREPARATION
STRUCTURAL CHEMICAL ANALYSIS
CATALYTIC EFFECTS
SILANES
DEHYDROGENATION
ALKENES
PROGRESS REPORT
SILICON CARBIDES
POLYMERS 400201
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
PREPARATION AND MANUFACTURE
STRUCTURE AND PHASE STUDIES
Language
English
Abstract
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.