| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis and Properties of Sulfonated Poly(Arylene Ethers) containing Crosslinking Moiety |
| 초록 |
The novel fluorinated poly(arylene ether) copolymers containing sulfonic acid group and crosslinking moiety were prepared for polymer electrolyte membrane of fuel cells. The regulation of the crosslinking density can be controlled by the molar ratio of crosslinking agent. Crosslinked membranes were prepared by thermal curing, and the membranes formed crosslinked network structure by covalent bonds. Gel fraction was evaluated in order to measure the crosslinking density. The thermal properties of the membranes increased with increasing the molar ratio of crosslinking agent. The crosslinked network structure suppressed the water uptake and swelling of the crosslinked membrane. The proton conductivity (0.047 0.123 S/cm) and methanol permeability (8 × 10-8 101 × 10-8 cm2/s) of the membranes also decreased with increasing crosslinking moiety. |
| 저자 |
정명환1, 이관수2, 이정필1, 손효경1, 김영제1, 고운1, 김다영1, 이재석1
|
| 소속 |
1광주과학기술원, 2Virginia Polytechnic Institute and State Univ. |
| 키워드 |
crosslinking; proton exchange membrane; fluoropolymer; direct methanol fuel cell; proton conductivity
|
| E-Mail |
|
