Preparation of high temperature resistance polybenzimidazole resin

Abstract

Polybenzimidazole’s (PBI) was synthesized from 3,3'-diaminobenzidine and adipic acid by melting copolycondensation. Its thermal properties have been studied The molecular structure and thermal stability of the resulting polymers were characterized by means of FTIR, TGA and DSC. The results indicate that the melting temperature of the PBI is higher than 400°C and the polymer possesses excellent thermal stability. The onset decomposition temperature was determined to be 516°C, and the highest decomposition temperature reaches 536°C.

Keywords

polybenzimidazole / melting polycondensation / thermal weight losses

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Acknowledgements

This work was financially supported by the grand of the Ministry of Education on Science and Technology (No. 0321037).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg