| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Semi-Interpenetrating Polymer Network Membranes Based on Sulfonated Poly(arylene ether sulfone) for Fuel cells at High Temperature and Low Humidity Conditions |
| 초록 |
Semi-interpenetrating polymer network (semi-IPN) membranes based on sulfonated poly(arylene ether sulfone) (SPAES) were developed for the application in polymer electrolyte membrane fuel cells (PEMFCs) operating at high temperature (> 100°C) and low relative humidity(< 50% RH) conditions. The semi-IPN membranes were prepared by a heating procedure using SPAES solutions containing vinyl phosphonic acid (VPA) and diethylene glycol dimethacrylate (DEGDMA). When the membrane was prepared using the optimized molar ratio of VPA to DEGDMA, it showed a very high proton conductivity of up to 10 mS cm-1 at 120°C and 40% RH, and high mechanical property with a tensile strength of 43.2 MPa. Membrane electrode assemblies (MEAs) prepared using this semi-IPN membrane showed a peak power density of 180 mW cm-1 at the operating condition (120°C and 40% RH), which is much larger than that of the MEAs prepared using the SPAES membrane (145 mW cm-2). The semi-IPN membranes also showed very good electrochemical stability during the durablility test. |
| 저자 |
배중문, 김기현, 고태윤, 이종찬
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| 소속 |
서울대 |
| 키워드 |
Semi-IPN membranes; PEMFC; sulfonated poly(arylene ether sulfone); vinyl phosphonic acid; high temperature; low relative humidity
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| E-Mail |
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