Chinese Chemical Letters p. 871 - 874 (2012)
Update date:2022-08-30
Topics:
Xu, Ye Wei
Tang, Jie
Chang, Guan Jun
Zhu, Fang Hua
Zhang, Lin
Poly(N-arylenebenzimidazole pyridine sulfone) (PNABIPS) has been prepared via the aromatic nucleophilic displacement reaction of 2,6-bis(2-benzimidazoly) pyridine (BBP) with bis(4-fluorophenyl) sulfone. BBP was synthesized by reaction of 2,6-pyridinedicarboxylic acid with 1,2-phenylenediamine in polyphosphoric acid. The chemical structure of BBP was confirmed by FT-IR, HRMS, 1H NMR and 13C NMR. The characterization of the polymer was performed with FT-IR, 1H NMR, elemental analysis, GPC, XRD, DSC, TGA and solubility tests. The polymer was obtained in quantitative yield with M n value 12,600 and Mw value 28,300, respectively. DSC and TGA measurements show that the glass transition temperature (Tg) is 312 °C and 5% weight loss temperature is 434°C in nitrogen and 545°C in air, respectively. In addition, the novel polymer exhibits good solubility, which can be dissolved in common organic solvent at room temperature.
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