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제107회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Crosslinked sulfonated polyimide copolymers for proton exchange membrane fuel cell (PEMFCs)

등록일
2011년 2월 25일 20시 49분 55초
접수번호
1753
발표코드
Ⅱ-POLY.P-120 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
김주영, 권세진, 이승우1
영남대학교 화학공학과, Korea
1영남대학교 디스플레이화학공학부, Korea
Proton exchange membrane fuel cells (PEMFCs) are considered as the most promising power source for automotive transportation in order to preserve oil resources and reduce significantly greenhouse gas emission. Most of them, sulfonated polyimides(SPIs) have been designed to be used as a proton conducting membrane in fuel cells. A series of SPIs containing were synthesized by two-step method polymerization. Material was prepared by the reaction of 4,4'-diaminodiphenyl ether-2,2'-disulfonic acid(ODADS), of p-phenylene diacric acid (PDA), p-phenylene diamine (PDA) and 4,4'-Oxydiphthalic anhydride (OPDA) in 1-Methyl-2-pyrrolidinone (NMP). The sulfonated monomer in the SPIs was varied from 0 to 50 wt %. The molecular structures of the SPIs were analyzed by means of fourier transform infrared spectrometer (FT-IR). Thermal Properties of the synthesized polymers were investigated by means of Thermogravimetric analysis(TGA) and Differential scanning calorimetry(DSC) . In addition, Ion exchange capacity(IEC) and Water Uptake(W.U) indicated high proton conductivity and excellent dimensional stability.

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