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

Published online by Cambridge University Press:  10 February 2011

H. Kimura ,
K. Okita ,
M. Ichitani ,
M. Yonezawa  and
T. Sugimoto
H. Kimura
Affiliation:
Advanced Materials Lab., Japan Chemical Innovation Institute, 2–1–6, Sengen, Tsukuba, 305–0047, Japan, jciikimura@ma3.justnet.ne.jp
K. Okita
Affiliation:
Advanced Materials Lab., Japan Chemical Innovation Institute, 2–1–6, Sengen, Tsukuba, 305–0047, Japan, jciikimura@ma3.justnet.ne.jp
M. Ichitani
Affiliation:
Advanced Polymer Lab., Sekisui Chemical Co., Ltd., 2–1, Momoyama, Mishima-gun, Osaka, 618–8589, Japan
M. Yonezawa
Affiliation:
Advanced Polymer Lab., Sekisui Chemical Co., Ltd., 2–1, Momoyama, Mishima-gun, Osaka, 618–8589, Japan
T. Sugimoto
Affiliation:
Advanced Polymer Lab., Sekisui Chemical Co., Ltd., 2–1, Momoyama, Mishima-gun, Osaka, 618–8589, Japan
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 576: Symposium DD – Organic/Inorganic Hybrid Materials II , 1999 , 89
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

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