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

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Size-Controlled Self-Assembly of Magneto-Polymersomes

등록일
2012년 2월 23일 10시 19분 16초
접수번호
1391
발표코드
KCS2-4 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 10시 : 10분
발표형식
심포지엄
발표분야
Developing Bonds Between Women Chemists in the U.S. and Korea
저자 및
공동저자
So-Jung Park, Rob Hickey
Department of Chemistry, University of Pennsylvania, USA, United States
Here, we present the size-controlled self-assembly of nanoparticles and amphiphilic block-copolymers. Three distinct structures were fabricated by controlling the solvent-nanoparticle and polymer-nanoparticle interactions: 1) polymersomes densely packed with magnetic nanoparticles (magneto-polymersomes), 2) core-shell type polymer assemblies where nanoparticles are radially arranged at the interface between the polymer core and the shell (magneto-core shell), and 3) polymer micelles where nanoparticles are homogeneously incorporated (magneto-micelles). We show that the incorporation of nanoparticles drastically affects the self-assembly structure of block-copolymers by modifying the relative volume ratio between the hydrophobic block and the hydrophilic block. The size of polymersomes was effectively controlled by varying the size of incorporated nanoparticles. Furthermore, we demonstrated that the morphology of nanoparticle-encapsulating polymer assemblies significantly affects their magnetic relaxation properties, emphasizing the importance of the self-assembly structure and nanoparticle arrangement as well as the size of the assemblies.

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