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Synthesis of pyridine-based poly(N-arylenebenzimidazole sulfone) 被引量:1
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作者 Ye Wei Xu Jie Tang +2 位作者 Guan Jun Chang Fang Hua Zhu Lin Zhang 《Chinese Chemical Letters》 SCIE CAS CSCD 2012年第7期871-874,共4页
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 ... 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 ^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 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. 展开更多
关键词 polyBENZIMIDAZOLES poly(n-arylenebenzimidazole pyridine sulfone) Thermal properties SOLUBILITY
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