| 학회 |
한국고분자학회 |
| 학술대회 |
2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 |
29권 1호, p.173 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Effect of hydrophobic domain on proton conductivity of sulfonated polyimide membranes |
| 초록 |
The proton transport through proton exchange membranes is controlled by the distribution of hydrated structure connected with negative charged fixed ions such as phosphonic acid, carboxylic acid and sulfonic acid, or water molecules within the membrane. This distribution of hydrophobic and hydrophilic domains causes the micro-separation and the subsequent formation of ionic clusters. In other words, the increase of hydrophilic domains resulted in the change of membrane morphology and influenced on the proton transport behavior. In this study, the percolation theory was applied to observe the relationship between the morphology in micro-phase and the proton transport behavior in sulfonated polyimide membranes with the different distribution of hydrophilic-hydrophobic domains. For this purpose, sulfonated polyimide membranes with various chemical compositions were prepared by the polycondensation of naphthalenic dianhydrides and diamines with different hydrophilicity and hydrophobicity and characterized with the proton conductivity, the water vapor sorption, and the X-ray diffraction spectroscopy. |
| 저자 |
손준용1, 이창현1, 남상용2, 박호범1, 이영무1
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| 소속 |
1한양대, 2경상대 |
| 키워드 |
Percolation theory; Proton conductivity; Sulfonated polyimide membranes
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| E-Mail |
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