Stability of sulfonated polytriazole and polyoxadiazole membranes

Mariela Leticia Ponce, Jerusa Roeder, Dominique Gomes, Suzana P. Nunes

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The performance and stability of sulfonated polytriazoles with polymer backbones containing diphenyl ether (S-DPE-PT) and hexafluorisopropylidene groups (S-FPT) were compared, aiming their application as proton conductive membranes for fuel cell. The chemical stability of both membranes were compared and analyzed by infrared spectroscopy after 24 h heating at temperatures up to 250°C. The superior stability of the fluorinated polytriazole was confirmed.

Original languageEnglish (US)
Pages (from-to)235-241
Number of pages7
JournalAsia-Pacific Journal of Chemical Engineering
Issue number1
StatePublished - Jan 2010


  • Fuel cell
  • Polyelectrolyte membrane fuel cell
  • Polytriadiazole
  • Proton conductivity

ASJC Scopus subject areas

  • General Chemical Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


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