Preparation of Polycarbosilane Using a Catalytic Process and Its Practical Uses

Abstract:

Polycarbosilane is the most typical polymeric precursor for SiC ceramic. In this study, liquid type polycarbosilane was synthesized from polydimethylsilane in the presence of solid acid catalyst at 350oC. The molecular weights of the polycarbosilane were ranged between 350 and 530. Synthesized polycarbosilane was characterized with 29Si Solid NMR, FT-IR and GPC analysis. The synthesized polycarbosilane can be used as a good organometallic precursor for SiC coating via chemical vapor deposition or spin coating.

• Periodical: Key Engineering Materials (Volume 287)
• Pages: 108-111
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.287.108
• Online since: June 2005
• Authors: Y. Kim, Dong Geun Shin, Hyung Rae Kim, Hong Sik Park, Doh Hyung Riu
• Keywords: Catalytic Process, Oligomer, Polycarbosilane, SiC Coating, SiC Precursor

References

[1] M. Birot, J. P. Pillot and J. Dunogues: Chem. Rev., Vol 95 (1995), p.1443.

[2] P. Colombo, T. E. Paulson and C.G. Pantano: J. Am. Ceram. Soc., Vol 80.

[9] (1997), p.2333.

[3] S. Yajima, Y. Hasegawa, J. Hayashi and M. Ilmura: J. Mater. Sci. Vol 13 (1978), p.2569.

[4] S. Yajima, Y. Hasegawa, K. Okamura and T. Matsuzawa: Nature, Vol 273 (1978), p.525.

[5] Y. Hasegawa, T. Kobori, K. Fukuda, U.S. Pat. No. 4, 590, 253, (1986).