• Materials Science
  • Published 2005

Studies on proton conductivity of phosphoric acid doped new polybenzimidazole

@inproceedings{Gaihua2005StudiesOP,
  title={Studies on proton conductivity of phosphoric acid doped new polybenzimidazole},
  author={Liu Gai-hua},
  year={2005}
}
Poly-2,6-benzimidazole (PBI-mono) and poly-2,2′-octamethylene-5,5′-bibenzimidazole (PBI-octa) were synthesized. The chemical structures of these polymers were confirmed by FTIR. Thermo-gravimetric analyzer was used to estimate the thermal stability. Compared with poly-2,2′-(m-phenylene)-5,5′-bibenzimidazole (PBI-ph) and PBI-mono, the thermal stability of PBI-octa decreased significantly due to the aliphatic segmental in the backbone. While the solubility of PBI-octa in some solvents was a… CONTINUE READING