| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1255371 | Chinese Chemical Letters | 2012 | 4 Pages |
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 Mn 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.
