| 학회 | 한국화학공학회 |
| 학술대회 | 2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 | 15권 1호, p.53 |
| 발표분야 | 고분자 |
| 제목 | Polyimide Zirconium sulfophenyl phosphate composite membranes for high temperature fuel cell membranes |
| 초록 | In this work, Organic-inorganic composite membranes from sulfonated polyimide and zirconium sulfophenyl phosphate(ZrSPP)s were synthesized. A series of SPI blended with different ratio of ZrSPP were arranged and compared to each other. The sulfonated polyimides(SPI)s are synthesized from 1,4,5,8-naphthalenetetracarboxylic dianhydride(NTDA), 2, 2’-benzidinedisulfonic acid (BDSA) as the sulfonated diamine, and mixing the deca-methyl diamine(DMD). And zirconium sulfophenyl phosphate(ZrSPP)s are synthesized from zirconium oxychloride, phenyl phosphoric acid(PPOA). The synthesis of ZrSPP was confirmed by phosphate(P-O) stretchingbond, and pick is 900-1300㎝-1 in FT-IR. For the structure analysis, we were carried out FT-IR, XRD. These composite membrane characterizations were evaluated for thermal stability(TGA), ion exchange capacity(IEC), water uptake, and proton conductivity. Thermal studies results showed that all the membranes exhibited three step degradation patterns and thermal stability of the SPI/ZrSPP membranes was slightly higher than the pure sulfonated polyimide membranes. Through property of water uptake and ion exchange capacity increased with the ZrSPP weight ratio, also the proton conductivity of the composite membranes shown similar trend with weight percent of ZrSPP. Besides this film consist of hydrophilic polymer matrix because put the ZrSPP(decrease the dehydration at high temperature) into SPI. It is expected to durable the composite membrane with their high proton conductivity at fixed high temperature. This study shows that sulfonated polyimide composite membranes containing ZrSPP has a good mechanical capacity. It can be a substitute for Nafion® fuel cells which is commercial Nafion 117. In addition polyimide has a low cost than Nafion® . |
| 저자 | 정민수, 최원진, 최봉구, 한학수 |
| 소속 | 연세대 |
| 키워드 | Polyimide; Fuel cell; zirconium sulfophenyl phosphate; poly electrolyte membrane; proton conductivity |
| 원문파일 | 초록 보기 |
