Chapter 8. Silylene-Acetylene Polymers as Precursors to SiC Fibers
- John B. Wachtman Jr
Published Online: 28 MAR 2008
Copyright © 1991 The American Ceramic Society, Inc.
Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 7/8
How to Cite
Meyer, M. K., Akinc, M., I-Maghsoodi, S., Zhang, X. and Barton, T. J. (2008) Silylene-Acetylene Polymers as Precursors to SiC Fibers, in Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313831.ch8
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1991
Print ISBN: 9780470375099
Online ISBN: 9780470313831
The use of sitylene-acetylene polymers ((RR'SiCC)n) as precursors to SiC fibers has been investigated. A number of polymers with different R and R groups have been synthesized and characterized with respect to molecular weight, ceramic yield, and oxidative stability of the ceramics at elevated temperatures. Pyrofysis of polymers was followed by FTIR, XRD, and TGA. All of the polymers were found to be soluble in a variety of solvents and meltable below 200°C. Several of the polymers, especially the ones with large cyclic R and R groups, could be melt spun into continuous, uniform, 10 m̈m diameter fibers. Short sections of fibers were UV crosslinked and pyrolyzed to ceramic fibers.