| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 | 29권 1호, p.171 |
| 발표분야 | 기능성 고분자 |
| 제목 | Synthesis and characterization of novel sulfonated polybenzoxazoles for proton exchange membrane applications |
| 초록 | Fuel cells are electrochemical devices that convert chemical energy into electrical energy. Proton exchange membrane plays a key role in fuel cell technology. Sulfonated perfluorocopolymers such as Nafion and Flemion have been recognized as the best materials due to their high proton conductivity and excellent chemical stability. However, these copolymers have some disadvantages in high cost, reduced conductivity at high temperature, and high methanol permeability. The development of new polymer electrolyte membranes have been also necessitated by the fact that commercial Nafion membrane do not meet the requirements. In this study, we will present the synthesis and characterization of sulfonated polybenzoxazoles by the polycondensation of aromatic dihydroxy diamine with a novel desulfonated dicarboxylic acid using polyphosphoric acid as the polymerization media. The basic and electrochemical properties of these resulting copolymers as a proton exchange membrane will be discussed. |
| 저자 | 박형수1, 김형중2, 이재흥1, 홍영택1 |
| 소속 | 1한국화학(연), 2공주대 |
| 키워드 | polybenzoxazoles; Fuel cell; membrane |
