Synthesis of novel fluorine-containing poly(aryl ether nitrile)s derived from 2,3,4,5,6-pentafluorobenzonitrile

Kunio Kimura, Yumi Tabuchi, Ai Nishichi, Yuhiko Yamashita, Yasunori Okumura, Yoshimitu Sakaguchi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


2,3,4,5,6-Pentafluorobenzonitrile (PFBN) is a valuable intermediate and it is available as a commercial product. In this paper, synthesis and characterization of novel fluorinated poly(ether nitrile)s (PEN) derived from PFBN is reported. Novel fluorinated PENs containing fluorine atoms in the main chain and pendant phenoxy group (2F-PEN) are synthesized by aromatic nucleophilic substitution reaction, of which Mn ranges from 1.77×104 to 5.16×104. The obtained PENs show excellent solubilities in common solvents, and 2F-PEN(6FBA) and 2F-PEN(DPE) can be cast as tough transparent films. These polymers have high thermal stabilities with the 5% weight loss temperature in the range 509-562°C and the Tg of 142-235°C, which is highly dependent on the structures.

Original languageEnglish
Pages (from-to)290-296
Number of pages7
JournalPolymer Journal
Issue number3
Publication statusPublished - 2001


  • 2,3,4,5,6-Pentafluorobenzonitrile
  • Fluorine-Containing Polymer
  • High T
  • Nucleophilic Aromatic Substitution
  • Poly(ether nitrile)
  • Solubility
  • Thermal Stability

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry


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