固体ＮＭＲによるポリ（フェニルビニルシリレンエチニレン‐１，３‐フェニレンエチニレン）の熱硬化構造の解析

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  • Thermosetting Mechanism Study of Poly[(Phenylvinylsilylene)ethynylene-1,3-phenyleneethynylene] by Solid-State and High-Resolution 1H, 13C, 29Si NMR Spectroscopy.
  • コタイ NMR ニ ヨル ポリフェニルビニルシリレンエチニレン 1 3 フェニレンエチニレン ノ ネツ コウカ コウゾウ ノ カイセキ

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Poly [(phenylvinylsilylene) ethynylene-1, 3-phenylene ethynylene] is the model molecule of the sily 1-carborane hybridized diethylbenzene-silylene pohlymer which exhibits high nonflammability in air.<BR>The thermosetting mechanism of poly [(phenylviny lsilylene) ethynylene-1, 3-phenyleneethynylene] was studied using the high-resolution and solid-state 1H, 13C, and 29Si NMR and two-dimensional 1H-13C correlation NMR method in this study. From these results, we concluded that two intermolecular cross-linking reactions: 1) the diene reaction between C≡Cs and 2) the addition reaction between C≡C and -CH=CH2 and between -CH=CH2s, occurred in this polymer. The naphthalene ring and cyclohexene ring was formed due to the diene reaction and the addition reaction, respectively, and a very highly thermally stable structure was formed. Both of the reactions progressed in the 250-450°C region.

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  • 高分子論文集

    高分子論文集 57 (1), 23-29, 2000

    公益社団法人 高分子学会

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