| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
Synthesis and properties of sulfonated poly(phenylene) proton exchange membrane via by superacid-catalyzed polymerization |
| 초록 |
A series of poly(phenylene)-based polyelectrolytes were synthesized from trifluoroacetophenone and N-methylisatin by superacid catalyzed polyhydroxyalkylation reaction. Postsulfonation of this high molecular weight and thermochemically stable poly(phenylene) with concentrated sulfuric acid resulted in homogeneous polyelectrolytes with controllable ion content (IEC: 1.5-2.3 mequiv/g). The membranes were casted from dimethylsulfoxide (DMSO). The structural properties of the synthesized polymers were investigated by 1H NMR spectroscopy and FT-IR. The membranes were studied by ion exchange capacity (IEC), water uptake, dimensional stability and proton conductivity. The chemical degradation test was performed by Fenton reagent, and compared with normal sulfonated poly(ether sulfone)s and Nafion. The polymers containing fluoro group without ether linkage on polymer backbone were chemically stable towards nucleophiles (H2O, hydrogen peroxide, hydroxide anion and radical). |
| 저자 |
이순호, 임영돈, 장호현, Hossain, 김환기
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| 소속 |
건국대 |
| 키워드 |
PEMFC; membrane; electrolyte; superacid
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| E-Mail |
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