| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Preparation of cross-linked membranes using highly sulfonated poly(arylene ether sulfone) by thiol-ene click reaction for proton exchange membrane fuel cell application |
| 초록 |
Cross-linked sulfonated poly(arylene ether sulfone)(SPAES) membranes with high degree of sulfonation(DS) of 70 mol% were prepared by thiol-ene click reaction using thiol endgroup SPAES with vinyl polysulfone(VPSf) as a cross-linker and the degree of cross-linking was controlled with the amount of VPSf. The physicochemical stabilities such as oxidative and dimensional stability were significantly improved by cross-linking compared to the linear SPAES membrane. The proton conductivities of the cross-linked membranes could be repeatedly measured despite the high DS of 70 mol%, which was difficult before cross-linking, and were larger than that of linear SPAES membrane of 50 mol% DS with similar IEC value. In addition, the fuel cell performance of membrane electrode assembly(MEA) using the cross-linked membrane(C-SPAES_7) showed higher maximum power density 692 mWcm-2 than that(603 mWcm-2) when using Nafion 212 membrane at 80℃ under fully humidified H2/Air condition. |
| 저자 |
이세호, 이현희, 한주성, 김혜진, 이종찬
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| 소속 |
서울대 |
| 키워드 |
Proton exchange membrane; Fuel cell; Sulfonated poly(arylene ether sulfone); Cross-linking
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| E-Mail |
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