| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터) |
| 권호 |
34권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Hyperbranched polymers as an additive for both electrode and membrane in high temperature PEM fuel cell application |
| 초록 |
Hyperbranched polymers based on phenoxide linkage (HPE) were prepared by 3,5-difluorophenol as an AB2 type monomer. Suzuki polycondensation was applied to synthesize HPE to prepare fluorinated hyperbranched polymers (HPEF). The oxygen affinity is induced by the high electronegativity of fluorine and such functionality was introduced by launching hyperbranched structure and resulted in maximization of fluorine density at the outskirts. Therefore, high oxygen affinity is expected for HPEF possessing high fluorine population. Core structure based on phenylene groups also contributed to high thermal stability and high Tdeg(500 ℃) was observed. HPEF as an additive for both electrode and membrane showed remarkable improvement in cell performance and great feasibility for high temperature PEM fuel cells appilication. |
| 저자 |
박소영1, 임미정1, 김동녕1, 안철희1, 최성우2, 박정옥2, 장혁2
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| 소속 |
1서울대, 2삼성종합기술원 |
| 키워드 |
fuel cell |
| E-Mail |
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