Synthesis and characterization of a new type of sulfonated poly(ether ether ketone ketone)s for proton exchange membranes

Gang Zhang, Tiezhu Fu, Jing Wu, Xianfeng Li, Hui Na

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

A novel series of sulfonated poly(ether ether ketone ketone)s (SPEEKKs) were prepared by aromatic nucleophilic polycondensation with different ratios of 1,3-bis(3-sodium sulfonate-4-fluorobenzoyl)benzene to 1,3-bis(4-fluorobenzoyl) benzene. 1H-NMR spectroscopy was used to confirm the degrees of sulfonation (DS) of the polymers. Thermal stabilities of the SPEEKKs in acid form were characterized by thermogravimetric analysis (TGA), which showed that SPEEKKs were excellently thermally stable at high temperatures. SPEEKK polymers can be easily cast into tough membranes. Both of proton conductivity and methanol diffusion coefficient have been tested in this article. Other properties of the SPEEKK membranes were investigated in detail. The results show that the SPEEKK membranes are promising in proton exchange membrane fuel cells (PEMFCs) application.

Original languageEnglish (US)
Pages (from-to)1515-1523
Number of pages9
JournalJournal of Applied Polymer Science
Volume116
Issue number3
DOIs
StatePublished - May 5 2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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