Polybenzimidazoles (PBIs) Derived from Non-Coplanar Dibenzoic Acid Containing Imidazole (IDBA): Synthesis, Characterization and Properties

被引：6

作者：

Liang, Zhumei ^{[1
]}

Jiang, Xuesong ^{[1
]}

Xu, Hongjie ^{[1
]}

Chen, Dan ^{[1
]}

Yin, Jie ^{[1
]}

机构：

[1] State Key Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2009年 / 210卷 / 19期

关键词：

luminescence; polycondensation; solution properties; synthesis; thermal properties; HYPERBRANCHED POLYBENZIMIDAZOLES; DOPED POLYBENZIMIDAZOLE; FUEL-CELLS; POLYIMIDES; MEMBRANES; POLYMERS;

D O I：

10.1002/macp.200900295

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel non-coplanar imidazole dibenzoic acid (IDBA) was successfully prepared, and its structure was carefully characterized by FT-IR, NMR, MS and elemental analysis. Poly-benzimidazoles (PBIs) derived from IDBA were synthesized by a conventional one-step method in polvyhosphoric acid (PPA). The obtained Ms exhibited good organic solubility, excellent thermo-stability and interesting optical properties. The initiation decomposition temperature for these PBIs ranged from 560-600 degrees C, and the 5% weight loss temperature (T-5) for all these PBIs was above 600 degrees C in N-2. No obvious glass transition for these HIS was observed below 350 degrees C. These PBIs shows UV-vis absorption maximum around 360-380 nm and strong photoluminescence emission (blue light) around 430-440 nm in solution, which is red-shifted to 490-510 nm in the solid state.

引用

页码：1632 / 1639

页数：8

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