| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Enhancement of ion conductivity of poly(diethyleneglycol dimethacrylate-co-styrenesulfonic acid) membrane with poly(styrenesulfonic acid) grafted carbon nanotube for direct methanol fuel cell |
| 초록 |
Composite membrane was fabricated by polymerization di(ethylene glycol) dimethacrylate (DEGDMA) with styrenesulfonic acid(SSA) in order to reduce methanol crossover with remain proton conductivity of Nafion. Prepared MWNTs-g-PSSA by atomic transfer radical polymerization (ATRP) added to the composites membrane for lower conductivity. The crosslinking reaction between DEGDMA and SSA was characterized through TGA, FT-IR and NMR. Ion conductivity and water uptake were investigated. The solvent swelling ratio of the membranes were controlled by adding a suitable crosslinker and varying the mole ratios of sulfonic acid groups. The proton conductivities of all the membranes were in the range of 103 to 102 S/cm. Also, mechanical properties increased and DEGDMA/SSA/PSSAMWNTs better than DEGDMA/SSA base polymer. |
| 저자 |
홍지혜, 김창근
|
| 소속 |
중앙대 |
| 키워드 |
conductivity; MWNT; DEGMMA; SSA; DMFC
|
| E-Mail |
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