Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (10): 2427.doi: 10.7503/cjcu20130414

• Polymer Chemistry • Previous Articles     Next Articles

Synthesis and Properties of Polyimides Containing Benzimidazole Group

ZHOU Yu, WANG Da-Ming, ZHAO Xiao-Gang, ZHOU Hong-Wei, CHEN Chun-Hai, DANG Guo-Dong   

  1. Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2013-05-03 Online:2013-10-10 Published:2013-10-10

Abstract:

A diamine monomer containing benzimidazole unit 2-(4-aminophenyl)-4-aminobenzimidazole was polymerized with commercially available dianhydrides to obtain polyimide films. The results of thermal and mechanical properties characterization show that these polyimide films possess considerable thermal resistance and good mechanical properties. Meanwhile, the relative position of the amino group in the diamine monomer imparts bent and distorted conformation of the polyimides, leading to good thermal plasticity and large value of coefficient of thermal expansion.

Key words: Polyimide, Benzimidazole, Thermal resistance, Thermal plasticity

CLC Number: 

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