アセチレンを主鎖に含む芳香族ポリエーテルの合成と性質

DOI Web Site 参考文献22件
  • RUSANOV A.L.
    A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences
  • KESHTOV M.L.
    A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences
  • SARKISYAN G.B.
    A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences
  • 左 敏
    豊橋技術科学大学物質工学系
  • 竹市 力
    豊橋技術科学大学物質工学系

書誌事項

タイトル別名
  • Preparation and Properties of Aromatic Polyethers Containing Acetylene Groups in the Backbone.
  • アセチレン オ シュサ ニ フクム ホウコウゾク ポリエーテル ノ ゴウセイ ト セイシツ

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抄録

Novel difluoroaromatic compounds containing acetylene groups were prepared. The reactivity of the monomers in nucleophilic substitution was evaluated from the positive charges on the carbon of C-F bonds calculated using the semiempirical PM3 method. It was found that there is a good correlation between the charge calculated and the chemical shifts in the 19F NMR spectra. Reactions of the monomers with various bisphenols under the nucleophilic substitution reaction conditions gave aromatic polyethers. The glass transition temperatures of the polyethers were in the range of 145-280°C, and the temperature at 10% weight loss were in the range of 410-545°C in the air. DSC revealed that acetylene groups in the polyether backbone reacted to crosslink atca. 350°C to give solvent resistant polymers.

収録刊行物

  • 高分子論文集

    高分子論文集 56 (7), 434-439, 1999

    公益社団法人 高分子学会

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