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, Suk Woo Nam, Qingfeng Li

Research output: Contribution to journalJournal articleResearchpeer-review

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-1 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
JournalEuropean Polymer Journal
Volume72
Pages (from-to)102-113
Number of pages12
ISSN0014-3057
DOIs
Publication statusPublished - 2015

Keywords

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

Cite this

Hink, Steffen ; Elsøe, Katrine ; Cleemann, Lars Nilausen ; Henkensmeier, Dirk ; Jang, Jong Hyun ; Kim, Hyoung Juhn ; Han, Jonghee ; Nam, Suk Woo ; 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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title = "Phosphoric acid doped polysulfone membranes with aminopyridine pendant groups and imidazole cross-links",
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-1 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.",
keywords = "High temperature polymer electrolyte membrane fuel cell (HT-PEMFC), Udel polysulfone, Aminopyridine",
author = "Steffen Hink and Katrine Els{\o}e and Cleemann, {Lars Nilausen} and Dirk Henkensmeier and Jang, {Jong Hyun} and Kim, {Hyoung Juhn} and Jonghee Han and Nam, {Suk Woo} and Qingfeng Li",
year = "2015",
doi = "10.1016/j.eurpolymj.2015.08.026",
language = "English",
volume = "72",
pages = "102--113",
journal = "European Polymer Journal",
issn = "0014-3057",
publisher = "Pergamon Press",

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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, Suk Woo; Li, Qingfeng.

In: European Polymer Journal, Vol. 72, 2015, p. 102-113.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Phosphoric acid doped polysulfone membranes with aminopyridine pendant groups and imidazole cross-links

AU - Hink, Steffen

AU - Elsøe, Katrine

AU - Cleemann, Lars Nilausen

AU - Henkensmeier, Dirk

AU - Jang, Jong Hyun

AU - Kim, Hyoung Juhn

AU - Han, Jonghee

AU - Nam, Suk Woo

AU - Li, Qingfeng

PY - 2015

Y1 - 2015

N2 - 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-1 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.

AB - 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-1 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.

KW - High temperature polymer electrolyte membrane fuel cell (HT-PEMFC)

KW - Udel polysulfone

KW - Aminopyridine

U2 - 10.1016/j.eurpolymj.2015.08.026

DO - 10.1016/j.eurpolymj.2015.08.026

M3 - Journal article

VL - 72

SP - 102

EP - 113

JO - European Polymer Journal

JF - European Polymer Journal

SN - 0014-3057

ER -