Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (7): 1461.

• Articles • Previous Articles     Next Articles

Synthesis and Characterization of Soluble Copolybenzimidazoles

SHENG Li, XU Hong-Jie*, FANG Jian-Hua, YIN Jie   

  1. School of Chemistry & Chemical Technology, The State Key Lab of Metal Matrixcomposites, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:2009-09-28 Online:2010-07-10 Published:2010-07-10
  • Contact: XU Hong-Jie. E-mail: hjxu@sjtu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50973062)资助.

Abstract:

A series of co-polybenzimidazoles were prepared via the condensation polymerization of 1,4-bis(4-carboxyphenoxy)benzene, 4,4′-dicarboxydiphenyl ether and 3,3′-diaminobenzidine in phosphorus pentoxide/methanesulfonic acid in a mass ratio of 1:10 by weight reaction medium. The structures of co-polybenzimidazoles were confirmed by FTIR and 1H NMR, and they show good solubility in polar solvents such as DMSO, DMAc and NMP, high thermal stability, good film forming ability and excellent mechanical properties.

Key words: Polybenzimidazole; Copolymer; Solubility

TrendMD: