Crystal and molecular structure of the thioether-analogue of PEEK from X-ray powder data and diffraction-modelling

Howard M. Colquhoun*, Peter L. Aldred, Allan S. Hay, Antisar Rih Hlil, Kenji Miyatake, David J. Williams

*この研究の対応する著者

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Analysis of X-ray powder data for the melt-crystallisable aromatic poly(thioether thioether ketone) [-S-Ar-S-Ar-CO-Ar]n, ('PTTK', Ar=1,4-phenylene), reveals that it adopts a crystal structure very different from that established for its ether-analogue PEEK. Molecular modelling and diffraction-simulation studies of PTTK show that the structure of this polymer is analogous to that of melt-crystallised poly(thioetherketone) [-S-Ar-CO-Ar]n in which the carbonyl linkages in symmetry-related chains are aligned anti-parallel to one another, and that these bridging units are crystallographically interchangeable. The final model for the crystal structure of PTTK is thus disordered, in the monoclinic space group I2/a (two chains per unit cell), with cell dimensions a=7.83, b=6.06, c=10.35 Å, β=93.47°.

本文言語English
ページ(範囲)585-590
ページ数6
ジャーナルPolymer
47
2
DOI
出版ステータスPublished - 2006 1月 13
外部発表はい

ASJC Scopus subject areas

  • 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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