Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake
Alkaline stable anion exchange membranes based on the cross-linked poly(arylene ether sulfone) grafted with dual quaternary piperidine (XPAES-DP) units were synthesized. The chemical structure of the synthesized PAES-DP was validated using <sup>1</sup>H-NMR and FT-IR spectroscopy. The ph...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/2/364 |
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| author | Prem P. Sharma Yeeun Jeon Dukjoon Kim |
| author_facet | Prem P. Sharma Yeeun Jeon Dukjoon Kim |
| author_sort | Prem P. Sharma |
| collection | DOAJ |
| description | Alkaline stable anion exchange membranes based on the cross-linked poly(arylene ether sulfone) grafted with dual quaternary piperidine (XPAES-DP) units were synthesized. The chemical structure of the synthesized PAES-DP was validated using <sup>1</sup>H-NMR and FT-IR spectroscopy. The physicochemical, thermal, and mechanical properties of XPAES-DP membranes were compared with those of two linear PAES based membranes grafted with single piperidine (PAES-P) unit and conventional trimethyl amine (PAES-TM). XPAES-DP membrane showed the ionic conductivity of 0.021 S cm<sup>−1</sup> at 40 °C which was much higher than that of PAES-P and PAES-TM because of the possession of more quaternary ammonium groups in the cross-linked structure. This cross-linked structure of the XPAES-DP membrane resulted in a higher tensile strength of 18.11 MPa than that of PAES-P, 17.09 MPa. In addition, as the XPAES-DP membrane shows consistency in the ionic conductivity even after 96 h in 3 M KOH solution with a minor change, its chemical stability was assured for the application of anion exchange membrane fuel cell. The single-cell assembled with XPAES-DP membrane displayed a power density of 109 mWcm<sup>−2</sup> at 80 °C under 100% relative humidity. |
| first_indexed | 2024-03-10T00:50:55Z |
| format | Article |
| id | doaj.art-6757a7cb22874d14970acf64f6cfbaae |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T00:50:55Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-6757a7cb22874d14970acf64f6cfbaae2023-11-23T14:50:51ZengMDPI AGMolecules1420-30492022-01-0127236410.3390/molecules27020364Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water UptakePrem P. Sharma0Yeeun Jeon1Dukjoon Kim2School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Gyeonggi, KoreaSchool of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Gyeonggi, KoreaSchool of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Gyeonggi, KoreaAlkaline stable anion exchange membranes based on the cross-linked poly(arylene ether sulfone) grafted with dual quaternary piperidine (XPAES-DP) units were synthesized. The chemical structure of the synthesized PAES-DP was validated using <sup>1</sup>H-NMR and FT-IR spectroscopy. The physicochemical, thermal, and mechanical properties of XPAES-DP membranes were compared with those of two linear PAES based membranes grafted with single piperidine (PAES-P) unit and conventional trimethyl amine (PAES-TM). XPAES-DP membrane showed the ionic conductivity of 0.021 S cm<sup>−1</sup> at 40 °C which was much higher than that of PAES-P and PAES-TM because of the possession of more quaternary ammonium groups in the cross-linked structure. This cross-linked structure of the XPAES-DP membrane resulted in a higher tensile strength of 18.11 MPa than that of PAES-P, 17.09 MPa. In addition, as the XPAES-DP membrane shows consistency in the ionic conductivity even after 96 h in 3 M KOH solution with a minor change, its chemical stability was assured for the application of anion exchange membrane fuel cell. The single-cell assembled with XPAES-DP membrane displayed a power density of 109 mWcm<sup>−2</sup> at 80 °C under 100% relative humidity.https://www.mdpi.com/1420-3049/27/2/364anion exchange membraneionic conductivitypoly(arylene ether sulfone)alkaline stabilitycrosslinkfuel cell |
| spellingShingle | Prem P. Sharma Yeeun Jeon Dukjoon Kim Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake Molecules anion exchange membrane ionic conductivity poly(arylene ether sulfone) alkaline stability crosslink fuel cell |
| title | Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake |
| title_full | Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake |
| title_fullStr | Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake |
| title_full_unstemmed | Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake |
| title_short | Alkaline Stable Anion Exchange Membranes Based on Cross-Linked Poly(arylene ether sulfone) Bearing Dual Quaternary Piperidines for Enhanced Anion Conductivity at Low Water Uptake |
| title_sort | alkaline stable anion exchange membranes based on cross linked poly arylene ether sulfone bearing dual quaternary piperidines for enhanced anion conductivity at low water uptake |
| topic | anion exchange membrane ionic conductivity poly(arylene ether sulfone) alkaline stability crosslink fuel cell |
| url | https://www.mdpi.com/1420-3049/27/2/364 |
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