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A simple strategy based on a highly fluorinated polymer blended with a fluorinated polymer containing phosphonic acid to improve the properties of PEMFCs

New Journal of Chemistry, ISSN: 1369-9261, Vol: 43, Issue: 28, Page: 11141-11147
2019
  • 12
    Citations
  • 0
    Usage
  • 8
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    12
    • Citation Indexes
      12
  • Captures
    8

Article Description

In order to enhance the thermo-chemical and mechanical proton exchange membrane (PEM) properties, a series of five blend membranes made from poly(vinylidene fluoride-co-chlorotrifluoroethylene) (poly(VDF-co-CTFE)) with a fluorinated copolymer containing phosphonic acid was synthesised. The mechanical properties of these blend membranes were assessed by dynamic mechanical analysis (DMA). In order to determine the influence of the fluorinated copolymer on the blend membrane morphology, a SAXS study was performed. The presence of the fluorine atoms in poly(VDF-co-CTFE) allows us to obtain membranes with a better structuration, but also to enhance the oxidative stability in the presence of radicals. The best result obtained shows a proton conductivity of 40 mS cm at 80 °C under fully hydrated conditions.

Bibliographic Details

Etienne Labalme; Ghislain David; Pierrick Buvat; Janick Bigarre

Royal Society of Chemistry (RSC)

Chemical Engineering; Chemistry; Materials Science

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