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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Reversible Morphological Transformation between Polymer Nanocapsules and Thin Films through Dynamic Covalent Self-assembly

등록일
2014년 8월 28일 16시 50분 01초
접수번호
1303
발표코드
POLY.P-72 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
김지홍, 백강균1,*, SHETTYDINESH1, 윤경원, 김남훈1, 고영호1, 박경민1, 황일하1, 김기문*
포항공과대학교(POSTECH) 화학과, Korea
1기초과학연구원 복잡계자기조립연구단, Korea
In biological systems, morphological transformations of nano/microstructures in response to environmental stimuli are integral to many of the processes necessary for life, including allosteric conformational changes of enzymes, pseudopodium formation during chemotaxis, and the formation and fusion of various vesicles during a variety of cell growth and signalling events. Synthetic nanostructures that can similarly undergo morphological transitions in response to physical and chemical stimuli have attracted a great deal of attention particularly for the development of “smart” functional materials. We developed a facile method for synthesizing polymer nanocapsules and thin films using multiple in-plane stitching of monomers via the formation of reversible disulfide linkages. Due to the reversibility of the disulfide linkages, the nanostructured materials readily change their structures in respond to environmental changes at room temperature. For example, the polymer nanocapsules release loaded cargo molecules in a reducing environment. Moreover, reversible morphological transformations between these structures are achieved by simple solvent exchanges. Our work presents a novel approach for the formation of robust nano/microstructured materials with dynamic response to environmental stimuli.

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