Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Novel Polysilamethylenosilanes; New Precursors for Silicon Carbide

  • Jung, Il-Nam (Organometallic Chemistry Lab. Korea Institute of Science & Technology) ;
  • Gyu-Hwan Lee (Organometallic Chemistry Lab. Korea Institute of Science & Technology) ;
  • Suk, Mi-Yeon (Organometallic Chemistry Lab. Korea Institute of Science & Technology) ;
  • Yeon, Seung-Ho (Organometallic Chemistry Lab. Korea Institute of Science & Technology)
  • Published : 1991.12.20
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Abstract

Novel polysilamethylenosilanes (PSMS) were prepared by Wurtz type co-condensation of various mixtures of 2,4,4,6-tetrachloro-2,6-dimethyl-2,4,6-trisilahept ane (TSH) and dimethyldichlorosilane (D). When TSH was incorporated more than 25 mole%, PSMS polymers were soluble in common organic solvents probably due to the polycarbosilane linkage brought from TSH. The molecular weights of the polymer were measured by gel permeation chromatography and showed higher molecular weight with high TSH content. The thermal gravimetric residues increased as TSH contents increased. These properties suggested that PSMS polymers could be useful as ceramic precursors for silicon carbide.

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References

  1. Advances in Chemistry Series 224, Am. Chem. Soc. Silicon-Based Polymer Science W. H. Atwell;J. M. Zeiger(ed.);F. W. G. Fearon(ed.)
  2. Chem Letters. v.931 S. Yajima;J. Hayashi;M. Omori
  3. Nature v.261 S. Yajima;J. Hayashi;M. Omori;K. Okamura
  4. J. Am. Ceram. Soc. v.61 K. S. Mazdiyasni;R. West;L. D. David
  5. Am. Ceram. Soc. Bull. v.62 R. West;L. D. David;P. I. Djurovich;H. Yu
  6. Am. Ceram. Soc. Bull. v.62 C. L. Schilling;J. P. Wesson
  7. British Polymer J. v.18 C. L. Schilling
  8. Bull. Kor. Chem. Soc. v.12 I. N. Jung;G. H. Lee;S. H. Yeon;M. Y. Suk
  9. J. Am. Chem. Soc. v.71 C. A. Burkhard
  10. J. Chem. Soc. Chem. Comm. L. F. Brough
  11. J. Polym. Soc., Polym. Chem. Ed. v.17 J. P. Wesson
  12. J. Am. Chem. Soc. v.103 R. West
  13. J. Mater. Sci. v.13 S. Yajima;Y. Hasegawa
  14. Abstracts of Int. Symp. on Organosilicon Chem. Directed Towards Mat. Sci. v.L305 C. L. Schilling, Jr.
  15. The Chemistry of Organic Silicon Compounds E. A. Williams;P. Saul(ed.);Z. Rappoport(ed.)
  16. J. Mater. Sci. v.21 Y. Hasegawa;K. Okamura
  17. J. Mater. Sci v.13 S. Yajima

Cited by

  1. ChemInform Abstract: Novel Polysilamethylenosilanes; New Precursors for Silicon Carbide. vol.23, pp.22, 1991, https://doi.org/10.1002/chin.199222208