Phosphoric acid doped polysulfone membranes with aminopyridine pendant groups and imidazole cross-links

Steffen Hink, Katrine Elsøe, Lars Nilausen Cleemann, Dirk Henkensmeier, Jong Hyun Jang, Hyoung Juhn Kim, Jonghee Han, SukWoo Nam, Qingfeng Li

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Udel polysulfone based membranes with 4-aminopyridine pendant groups and cross-linking imidazole units are synthesized in a simple two step reaction. The ratio of 4-aminopyridine and imidazole is varied and the materials are extensively characterized. The average phosphoric acid uptake (in 85 wt% PA) ranges between 90 wt% and 452 wt% depending on the ratio of 4-aminopyridine and imidazole and the membranes show good proton conductivity of up to 65 mS cm<sup>-1</sup> at 160 °C under non-humidified conditions. The applicability of these materials as a polymer electrolyte membrane was proven by single cell tests at 130 °C. The relationships between PA uptake, chemical composition and mechanical stability are reported. Proton conductivity and mechanical properties only depend on the phosphoric acid content, which, however is a function of the chemical composition.

Original languageEnglish
Pages (from-to)102-113
Number of pages12
JournalEuropean Polymer Journal
Volume72
DOIs
Publication statusPublished - 2015 Nov 15

Fingerprint

Aminopyridines
4-Aminopyridine
Polysulfones
phosphoric acid
Phosphoric acid
imidazoles
Proton conductivity
membranes
Membranes
chemical composition
conductivity
protons
Mechanical stability
Chemical analysis
Electrolytes
Polymers
electrolytes
mechanical properties
Mechanical properties
polymers

Keywords

  • Aminopyridine
  • High temperature polymer electrolyte membrane fuel cell (HT-PEMFC)
  • Udel polysulfone

ASJC Scopus subject areas

  • Polymers and Plastics
  • Physics and Astronomy(all)
  • Organic Chemistry

Cite this

Hink, S., Elsøe, K., Cleemann, L. N., Henkensmeier, D., Jang, J. H., Kim, H. J., ... Li, Q. (2015). Phosphoric acid doped polysulfone membranes with aminopyridine pendant groups and imidazole cross-links. European Polymer Journal, 72, 102-113. https://doi.org/10.1016/j.eurpolymj.2015.08.026

Phosphoric acid doped polysulfone membranes with aminopyridine pendant groups and imidazole cross-links. / Hink, Steffen; Elsøe, Katrine; Cleemann, Lars Nilausen; Henkensmeier, Dirk; Jang, Jong Hyun; Kim, Hyoung Juhn; Han, Jonghee; Nam, SukWoo; Li, Qingfeng.

In: European Polymer Journal, Vol. 72, 15.11.2015, p. 102-113.

Research output: Contribution to journalArticle

Hink, Steffen ; Elsøe, Katrine ; Cleemann, Lars Nilausen ; Henkensmeier, Dirk ; Jang, Jong Hyun ; Kim, Hyoung Juhn ; Han, Jonghee ; Nam, SukWoo ; Li, Qingfeng. / Phosphoric acid doped polysulfone membranes with aminopyridine pendant groups and imidazole cross-links. In: European Polymer Journal. 2015 ; Vol. 72. pp. 102-113.
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AU - Jang, Jong Hyun

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