Synthesis and Characterization of Novel Sulfonated Polybenzimidazoles

doi:10.3969/j.issn.0251-0790.2012.03.040

Abstract

Abstract:

A series of sulfonated polybenzimidazoles(SPBI) was prepared via the condensation polymerization of 1,4-bis(4-carboxyphenoxy)benzene-2-sulfonate, 4,4'-dicarboxydiphenyl ether and 3,3'-diaminobenzidine in phosphorus pentoxide/methanesulfonic acid in a mass ratio of 1∶10. The structures and properties of sulfo-nated polybenzimidazoles were confirmed by FTIR, NMR and TGA. They show good solubility in polar solvents, high thermal stability, good film forming ability and excellent mechanical properties.

Key words: Sulfonated polybenzimidazole(SPBI), Sodium 1,4-bis(4-carboxyphenoxy)benzene-2-sulfonate(BCPOBS-Na), Solubility

CLC Number:

O631

TrendMD:

ZHAO Jing, SHENG Li, XU Hong-Jie, FANG Jian-Hua, YIN Jie. Synthesis and Characterization of Novel Sulfonated Polybenzimidazoles[J]. Chem. J. Chinese Universities, doi: 10.3969/j.issn.0251-0790.2012.03.040.

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Synthesis and Characterization of Novel Sulfonated Polybenzimidazoles

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