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

doi:10.1016/j.eurpolymj.2015.08.026

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 journal › Article › peer-review

12 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^-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 language	English
Pages (from-to)	102-113
Number of pages	12
Journal	European Polymer Journal
Volume	72
DOIs	https://doi.org/10.1016/j.eurpolymj.2015.08.026
Publication status	Published - 2015 Nov 15

Bibliographical note

Funding Information:
This work was supported by KIST K-GRL , the Innovation Fund Denmark in the frame of the 4M Centre and the National Research Foundation of Korea Grant funded by the Korean Government (MSIP) (2014, University-Institute cooperation program).

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.

Keywords

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

ASJC Scopus subject areas

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

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10.1016/j.eurpolymj.2015.08.026

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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 = "Aminopyridine, High temperature polymer electrolyte membrane fuel cell (HT-PEMFC), Udel polysulfone",

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",

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year = "2015",

month = nov,

day = "15",

doi = "10.1016/j.eurpolymj.2015.08.026",

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volume = "72",

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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

N1 - Funding Information: This work was supported by KIST K-GRL , the Innovation Fund Denmark in the frame of the 4M Centre and the National Research Foundation of Korea Grant funded by the Korean Government (MSIP) (2014, University-Institute cooperation program). Publisher Copyright: © 2015 Elsevier Ltd. All rights reserved. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.

PY - 2015/11/15

Y1 - 2015/11/15

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 - Aminopyridine

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

KW - Udel polysulfone

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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