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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 FTIR, HRMS,~1H NMR and ~(13)C 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 M_w value 28,300,respectively.DSC and TGA measurements show that the glass transition temperature(T_g) is 312℃ and 5%weight loss temperature is 434℃ in nitrogen and 545℃ in air,respectively.In addition,the novel polymer exhibits good solubility,which can be dissolved in common organic solvent at room temperature.
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 2,6-pyridinedicarboxylic acid with 1,2-phenylenediamine in polyphosphoric acid. The chemical structure of BBP was confirmed by FTIR, HRMS, ~ 1H NMR and ~ (13) C 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 M_w value 28,300, respectively. DSC and TGA measurements show that the glass transition temperature (T_g) 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.