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학술발표회초록보기

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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Self-Assembling Molecular Sheets and Their Aggregation

등록일
2012년 2월 16일 16시 04분 15초
접수번호
1142
발표코드
POLY.P-64 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
강선영, 이명수
서울대학교 화학부, Korea

Well-defined aqueous nanostructures can be constructed by self-assembly of aromatic amphiphiles. Along this line, we have explored amphiphilic block molecules based on a planar aromatic sheet and a hydrophilic oligoether dendron. Additionally, we have made an effort to prove an influence of a small single alkyl chain which is attached at aromatic sheet. These small block molecules were synthesized through a multistep fashion starting from m-linked terphenyl units. These molecules showed to self-assemble into discrete nanostructures in aqueous solution through strengthened π-π stacking interactions of the flat aromatic segments. The aggregation behavior of the molecules has been characterized by cryo-TEM and DLS. We have also demonstrated that the molecules can selectively exfoliate graphite powder into graphene sheets in water. In this presentation, we will discuss the synthesis of the laterally-grafted molecular sheets and their self-assembly behavior in aqueous solution and the functionalization of graphene. [1] J.-K. Kim, E. Lee, M.-C. Kim, E. Shim, M. Lee, J. Am. Chem. Soc. 2009, 131, 17768 [2] J.-K Kim, E. Lee, M. Lee, Macromol. Rapid Commun. 2010, 31, 980 [3] D.-W. Lee, T. Kim, M. Lee, Chem. Commun. 2011, 47, 8259


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