| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
SYNTHESIS AND PROPERTIES OF GRAFTING SULFONATED POLY(ISATIN-BIPHENYLENE) PROTON EXCHANGE MEMBRANE BY SUPERACID-CATALYZED POLYMERIZATION FOR PEMFC |
| 초록 |
These polymers have no ether linkage on polymer backbone that was not attacked by nucleophiles (H2O, hydrogen peroxide, hydroxide anion and radical). It has obtained high molecular weight by Superacid-catalyzed polyhydroxyalkylation after Friedel-Crafts. Sulfonated polymer were synthesized by condensation of isatin polymer with potassium salt of 3-bromo-1-propanesulfonic acid and grafted polymer film was acidified by immersing in 1.0 M sulfuric acid solution at 80 °C for 6 h. The sulfonic acid composition was regulated at 25~80 mol % of propylsulfonic acid in order to achieve expected ion exchange capacity of maximum 2.0 meq/g. The copolymers were of high molecular weight to afford a tough membrane by solution casting. The structure properties of the synthesized polymers were investigated by 1H-NMR spectroscopy. The membranes were studied by ion exchange capacity (IEC), water uptake, dimensional stability and proton conductivity. Grafting sulfonated polymer compared with Nafion |
| 저자 |
이순호, Hossain, 전영태, 이상영, 홍태훈, 김환기
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| 소속 |
건국대 |
| 키워드 |
PEMFC; electrolyte; membrane; MEA; sulfonated polymer
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| E-Mail |
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