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  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Sulfonated Poly(arylene ether) Membranes containing Perfluorocyclobutyl and Ethynyl groups: Increased Mechanical Strength through Chain Extension and Crosslinking

등록일
2014년 9월 4일 15시 39분 52초
접수번호
1497
발표코드
POLY.O-8 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 11시 : 30분
발표형식
구두발표
발표분야
고분자화학 - New Trends in Polymer Chemistry
저자 및
공동저자
이수빈, 이재석1,*
광주과학기술원(GIST) 신소재공학부, Korea
1광주과학기술원(GIST) 신소재공학과, Korea
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 extension and crosslinking reactions were performed by thermal curing at 200 °C, and confirmed by FT-IR and chemical resistance testing. 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.

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