Organosilane Polymers. IV. Polycarbosilane Precursors for Silicon Carbide.
Abstract
The current objectives of this project are: (1) optimized preparations of tractable polycarbosilane precursors for silicon carbide; (2) conversion of such polycarbosilanes to silicon carbide including shaped articles thereof, such as fibers; and (3) development of fundamental understanding of the preparative and pyrolytic chemistry. One-step preparations of tractable polycarbosilanes are achieved through silicon-carbon bond-forming reactions of vinylic or chloromethyl (ClCH2-) silanes. These polymers are directly convertible to silicon carbide compositions by atmospheric pressure pyrolysis. Backbone branching is recognized as essential for practical conversion of such polycarbosilanes to silicon carbide.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1981
- Accession Number
- ADA099030
Entities
People
- C. L. Schilling Jr.
- J. P. Wesson
- T. C. Williams