| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 가을 (10/21 ~ 10/22, 인하대학교) |
| 권호 |
11권 2호, p.2119 |
| 발표분야 |
에너지/환경 |
| 제목 |
Hydrolytically Durable, Highly Proton Conductive Organic-Inorganic Nanocomposite Membranes Containing Chemical Modifiers |
| 초록 |
Organic-inorganic composite membranes show excellent thermal, mechanical, and chemical stability, and high proton conductivity under elevated temperatures and/or low humidified condition. However, there still exist severe problems such as limitation in the incorporation content and difficulty in the homogeneous distribution of inorganic fillers. In this study, sulfonated polyimide-silica nanocomposite membranes were fabricated using fumed silica and non-ionic chemical modifiers to improve membrane stability and to increase water retention level at the elevated temperature. The low-molecular non-ionic modifiers substantially contributed to the improvement of other membrane performances as well as homogeneous distribution of silica particles. Eventually, the ultimate goal of this study is to investigate the effect of hydrophilic and hydrophobic fumed silica in a nanoscale. Another goal is to study the influence of non-ionic chemical modifiers containing hydrophilic-hydrophobic blocks with different chain lengths on the proton conductivity, methanol permeability, and hydrolytic stability. |
| 저자 |
이창현1, 황신영1, 박호범1, 김주영2, 이영무1
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| 소속 |
1한양대, 2삼척대 |
| 키워드 |
organic-inorganic nanocomposite; fumed silica; chemical modifiers
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| E-Mail |
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| 원문파일 |
초록 보기 |
