| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 가을 (10/30 ~ 11/01, 대전컨벤션센터) |
| 권호 |
17권 2호 |
| 발표분야 |
포스터-에너지저장.변환 |
| 제목 |
Preparation and Characterizations of Sulfonated Poly(arylene sulfone) Multiblock Copolymers for PEMFC Applications |
| 초록 |
Two series of multiblock copolymers based on sulfonated poly(arylene sulfone) blocks with highly acidic sulfonic acid groups were prepared. Multiblock copolymers with various IEC values were prepared by controlling the molecular weights of their hydrophilic and hydrophobic oligomers. The prepared block copolymer membranes with high ion exchange capacities above 1.90 meq/g showed improved water absorption behaviors (higher dimensional stability and lower water uptake) as well as higher proton conductivity (＞0.2 and ＞0.020 S/cm under 100% and 50% RH, respectively, at 80 ℃) compared with conventional multiblock copolymers based on sulfonated poly(arylene ether sulfone)s. Their high oxidative and thermal stability were also confirmed by Fenton’s test and TGA analysis. Finally, the multiblock copolymer membranes in this study showed similar or higher cell performances compared with that of Nafion 212 (~1053 mA/cm2 @ 0.6 V). |
| 저자 |
정명수, 유덕만, 이장용, 김태호, 홍영택
|
| 소속 |
한국화학(연) |
| 키워드 |
poly(arylene sulfone); multiblock copolymer; proton exchange membrane
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| E-Mail |
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