| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Sulfonated poly(arylene ether) membranes containing perfluorocyclobutyl and ethyl groups: Increased mechanical strength chain extension and crosslinking |
| 초록 |
Novel extendable and crosslinkable sulfonated poly(arylene ether) copolymers (ESHQx-CMy) were synthesized. These copolymers utilized 4-[trifluorovinyl(oxy)]phenol (TFP) as a linker to extend the polymer and provide better elongation at break and mechanical strength. The extension moiety was successfully synthesized and introduced at the chain end of the sulfonated poly(arylene ether) copolymers to induce a strong interaction of the copolymer while maintaining its flexibility. The synthesized copolymers (ESHQx-CMy) possessed reasonable thermal and chemical stability. In addition, the elongation at break was improved to 14.2%, with a higher tensile strength (73.6 MPa) than other sulfonated poly(arylene ether) copolymers containing only a crosslinked moiety (CM). Importantly, these novel copolymers also displayed the highest proton conductivity (0.145 S/cm) than Nafion 212 (0.093 S/cm) at room temperature. |
| 저자 |
이수빈, 민청민, 안민균, 이재석
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| 소속 |
광주과학기술원(GIST) |
| 키워드 |
Chain-extension; Mechanical strength; Polymer electrolyte membrane
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| E-Mail |
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