Structural change in poly(hexafluoro-1,3-butadiene) during heat treatment

Shin Nishimura, Akira Nagai, Akio Takahashi, Tadashi Narita, Tokio Hagiwara, Hiroshi Hamana

研究成果: ジャーナルへの寄稿学術誌査読

4 被引用数 (Scopus)

抄録

The structural change in poly(hexafluoro-1,3-butadiene) that takes place during heat treatment was investigated by measuring its i.r. spectra. The polymer obtained from hexafluoro-1,3-butadiene (HFBD), produced by t-C4H9OCs initiation in toluene, showed excellent thermal properties, such as a high thermal decomposition temperature and a low thermal expansion coefficient. The thermal properties of poly(HFBD) were found to be similar to those of conventional thermosetting polymers, since the thermal expansion coefficient of poly(HFBD) decreased after the heating process. The absorption at ∼2970 cm-1, which was assigned to traces of initiator (t-C4H9), disappeared after heating at 200 or 400°C for 10 h. The absorption at ∼1710 cm-1, which was assigned to the CFCF bond in the main chain, and the peak at 1840 cm-1, both increased after heating at 400°C for 10 h. It is suggested that the chemical structure of the polymer was changed during the heating process. Furthermore, the radical species which was produced by cleavage of the bonds with heating at high temperatures might react with the CFCF bonds in the polymer chain to yield crosslinked species.

本文言語英語
ページ(範囲)3474-3478
ページ数5
ジャーナルpolymer
35
16
DOI
出版ステータス出版済み - 8月 1994
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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