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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Molecular sieving of liquid mixtures through ultrathin covalent organic networks

등록일
2014년 8월 28일 13시 55분 26초
접수번호
0917
발표코드
POLY.P-44 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
변민선, 박지웅*
광주과학기술원(GIST) 신소재공학부, Korea
Nanometer-thick covalent molecular networks were synthesized on the molecular level by pore-limited molecular layer deposition (MLD) process. The deposition phenomena were different when the MLD was conducted on the nanoporous substrates such as AAO membrane unlike flat substrates. The deposition of molecular networks was restricted by the pore structures. The ultrathin covalent organic nets were then deposited on the surface of the membrane as a skin layer. Alternating deposition of multi-functional, polyhedral molecules gives nanometer thick films of three-dimensionally cross-linked organic molecular networks. Varying the number of deposition cycles enables to control the pore size of the molecular networks membrane precisely on the molecular level. Molecular sieving performance confirmed by filtration of various aqueous solutions containing organic solutes. Molecular nets membrane is a promising strategy to overcome the limitations of the conventional separation system using membranes. This research was supported by Global Frontier Program through the Global Frontier Hybrid Interface Materials(GFHIM) of the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning (2013M3A6B1078869).

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