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Thermosetting Mechanism Study of Organosilicon Polymer Containing Carborane by Solid-State NMR Spectroscopy

  • H. Kimura (a1), K. Okita (a1), M. Ichitani (a2), M. Yonezawa (a2) and T. Sugimoto (a2)...

Abstract

The thermosetting mechanism of an organosilicon polymer containing carborane has been studied utilizing the 13and 29Si solid-state NMR method. The polymer having C≡C bonds in the main chain and CH═CH2, Si-H bonds, and carborane in the bulky side chain, shows a very highly thermal stability in air by curing. From 13C and 29Si NMR spectra of the polymer, it was found that the intermolecular cross-linking reactions of the polymer was due to (1) the diene reaction between Ph-C≡C and C≡C and (2) the addition reaction between side chain terminal and Ph-C≡C and between CH═CH2 and Si–H, and a very highly thermal stable structure is formed.

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1. Kuroki, S., Okita, K., Kakigano, T., Ishikawa, J., and Itoh, M., Macromolecules 31 p. 28042808, 9 (1998)10.1021/ma971133g
2. Ichitani, M., Yonezawa, M., Sugimoto, T., Polymer Journal, in press (1999)
3. Pehrsson, P. E., Henderson, L. J., Keller, T. M., Surf. Interface Anal. 24 p. 145151, (1996)10.1002/(SICI)1096-9918(199603)24:3<145::AID-SIA89>3.0.CO;2-B

Thermosetting Mechanism Study of Organosilicon Polymer Containing Carborane by Solid-State NMR Spectroscopy

  • H. Kimura (a1), K. Okita (a1), M. Ichitani (a2), M. Yonezawa (a2) and T. Sugimoto (a2)...

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