Bulletin of the Korean Chemical Society

  • 제17권5호
  • /
  • Pages.443-447
  • /
  • 1996
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지
DOI QR코드

DOI QR Code

Syntheses and Characterization of Polysilanes with Bulky Substituents

  • 발행 : 1996.05.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Several polysilanes with sterically bulky substituents such as poly(2-phenylpropyl)(n-hexyl)silane were prepared by Wurtz-type coupling. The polysilane products were mixtures of low-molecular-weight polymers (&bar{M};w~103) as major and high-molecular-weight polymers (&bar{M};w~106) as minor. Overall yields for polysilanes were in the range of 81-99%. λmax of liquid low MW polymers appeared at around 280 nm. Formations of solid high MW polymers were decreased by a longer reaction time and increased steric bulkiness of substituents. High MW polymers with λmax at 327 nm except crosslinked polymers were soluble in common organic solvents and found to be light sensitive. Crosslinked high MW polymer gave 21% TGA ceramic yield, compared with linear high polymer giving zero ceramic yield.

키워드

참고문헌

  1. Chem. Rev. v.89 Miller, R. D.;Michl, J.
  2. J. Organomet. Chem. v.300 West, R.
  3. Inorganic Polymers Mark. J. E.;Allcock, H. R.;West. R.
  4. Silicon Based Polymer Science; Ad vances in Chemistry Series 224 Zeigler, J. M.;Fearon, F. W. G.
  5. Inorganic and Organometal lic Polymers; ACS Symp. Series 360 Zeldin, M.;Wynne, K. J.;Allcock, H. R.
  6. Macromolecules v.20 Harrah, L. A.;Zeigler, J. M.
  7. J. Polym. Sci.: Part A, Polym. Chem. v.29 Miller, R. D.;Thomson, D.;Sooriyakumaran, R.;Fickes, G. N.
  8. J. Chem. Soc. v.119 Kipping, F. S.
  9. J. Chem. Soc. v.125 Kipping, F. S.
  10. J. Am. Chem. Soc. v.71 Burkhard, C.
  11. Adv. Organomet. Chem. v.6 Kumada, M.;Tamao, K.
  12. J. Organomet. Chem. v.88 Boberski, W.;Allred, A. R.
  13. Chem. Lett. Yajima, S.;Hayashi, J.;Omori, M.
  14. J. Am. Ceram. Soc. v.59 Yajima, S.;Okamura, K.;Hayashi, J.;Omori, M.
  15. J. Polym. Sci., Polym . Chem. Ed. v.19 Wesson, J. P.;Willams, T. C.
  16. J. Am. Ceram. Soc. v.61 Mazdayasni, K. S.;West, R.;David, L. D.
  17. J. Am. Ceram. Soc. v.103 West, R.;David, L. D.;Djurovich, P. I.;Stearley, K. L.;Srinivasan, K. S. V.;YU, H.
  18. J. Organomet. Chem. v.236 Helmer, B.;West, R.
  19. J. Organomet. Chem. v.198 Trujillo, R. E.
  20. Acc. Chem. Res. v.26 Tilly, T. D.
  21. J. Am. Ceram. Soc. v.113 Matyjaszewski, K.;Gupta, Y.;Cypryk, M.
  22. J. Am. Chem. Soc. v.111 Sakamoto, K.;Obata, K.;Hirata, J.;Nakajima, M.;Sakurai, H.
  23. Macromolecules v.28 Matyjaszewski, K.;Greszta, D.;Hrkach, J. S.;Kim, H. K.
  24. Organometallics v.12 Yeon, S. H.;Lee, B. W.;Kim, S. I.;Jung, I. N.
  25. Organometallics v.13 Lee, B. W.;Yoo, B. R.;Kim, S. I.;Jung, I. N.
  26. Bull. Korean Chem. Soc. v.16 Woo, H.-G.;Han, M.-K.;Cho, E.-J.;Jung, I. N.
  27. J. Mater. Sci. v.13 Yajima, S.
  28. Bull. Korean Chem. Soc. v.12 Jung, I. N.;Lee, G. H.;Suk, M. Y.;Yeon, S. H.
  29. J. Am. Chem. Soc. v.107 Trefonas, P. III;West, R.;MIller, R. D.
  30. Organometallics v.6 Nate, K.;Ishikawa, M.;Ni, H.;Watanabe, H.;Saheki, Y.