화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터)
권호 18권 1호
발표분야 차세대전지의 전기화학적원리 II
제목 Morphological rearrangement of ionic channels in solid state disulfonated poly(arylene ether) copolymers via direct fluorination
초록 Disulfonated poly(arylene ether sulfone) random and multiblock copolymers with the same chemical architecture state were physicochemically tuned in solid membrane via direct fluorination under a dilute fluorine (F2)-nitrogen (N2) mixture, which was expected to minimize chemical degradation by a highly reactive F2 gas. The direct fluorination and subsequent acidification enabled C-H bonds of aromatic rings in hydrophobic domains or blocks of the copolymers to be selectively converted into C-F bonds. Interestingly, the direct fluorination on the copolymer membranes influenced their morphologies and water/ion transport properties in different ways, even though both sulfonic acid level and swelling ratio of the precursor copolymers were similar.
저자 이창현1, 이관수2, Mingqiang Zhang2, James E. McGrath2, Robert B. Moore2, Mark D. Lingwood2, Louis A. Madsen2, 위성술3, 이소영4, 이영무4
소속 1단국대, 2버지니아텍, 3National Magnetic Field Laboratory, 4한양대
키워드 직접불소화; 이온재정렬; 연료전지; 수처리; 삼투발전
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