We had been studying the synthesis of fluorine-containing polymers derived from 2,3,4,5,6-pentafluorobenzoic acid. This paper described the synthesis and characterization of novel fluorine-containing poly(arylether 1,3,4-oxadiazole)s(F-PEOs). Monomer was synthesized from hydrazine hydrate and 2,3,4,5,6-pentafluorobenzoyl chloride. F-PEOs were synthesized by nucleophilic aromatic substitution reaction at 30°C in NMP. The polymers obtained by stopping just before the gelation were all para connected linear structures confirmed by NMR. The obtained F-PEOs showed excellent solubility and afforded tough transparent films by solution casting method. They also exhibited high Tg of 157-257°C and good thermal stability, and excellent hydrophobicity due to the incorporation of 2,3,5,6-tetrafluoro-1,4-phenylene moiety.
|出版ステータス||Published - 2005|
|イベント||54th SPSJ Annual Meeting 2005 - Yokohama|
継続期間: 5月 25 2005 → 5月 27 2005
|Other||54th SPSJ Annual Meeting 2005|
|Period||5/25/05 → 5/27/05|
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