| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Synthesis and Characterization of Novel Sulfonated Poly(arylene ether sulfone) Multi-block Copolymers Containing Phenolphthalein Moieties for Direct Methanol Fuel Cell Membrane |
| 초록 |
A series of novel sulfonated poly(arylene ether sulfone) multi-block copolymers containing phenolphthalein moieties were synthesized by direct copolymerization of phenoxide-terminated and fluorine-terminated oligomers with different segment lengths. The structures of the multi-block copolymers were confirmed by NMR and FT-IR, and their thermal stability and viscosity were also investigated. A series of novel multi-block copolymer membranes were characterized by determining the ion-exchange capacity, water uptake, methanol permeability, proton conductivity and fuel cell performance. Proton conductivity for the multi-block copolymer series was proportional to segment lengths. In addition, methanol permeability of the multi-block copolymers was efficiently reduced due to the presence of phenolphthalein moieties. Therefore, it is noted that the novel multi-block copolymers are useful and possible to be candidate for future polymer electrolyte membrane in DMFCs. |
| 저자 |
윤수진, Susheela B. Idage, 최종호, 김석제, 홍영택
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| 소속 |
한국화학(연) |
| 키워드 |
polymer electrolyte membrane; phenolphthalein; sulfonated poly(arylene ether sulfone) multi-block
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| E-Mail |
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