화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터)
권호 40권 1호
발표분야 Self-Assembled Materials
제목 Direct formation and destruction of the helical nanofilaments in the confined geometries
초록 Bent-core LCs (Liquid Crystals) form a very unique superstructure which is called helical nanofilaments (HNFs), that is aroused by the highly restrictive molecular packing from the molecular shape. Under a physical confinement using porous anodic aluminum oxide (AAO), the growing direction and dimension of individual HNFs are precisely controlled in linear nanoscale pores. To reveal the origin of its helix evolution in achiral organic molecules, we made a novel attempt to apply this system to the mixture of two different homologues that are originated from the same backbone structure with different chain length. It gives only a temporal steric hindrance on molecular packing process, which causes a time delay over the whole formation process maintaining its own developing history. This work gives the important clues for a fundamental understanding of HNF formation that is to enable the non-destructive observation on the whole process in every single steps in real time scale.
저자 김한임1, 류성호1, 신태주2, Ewa gorecka3, 윤동기1
소속 1KAIST, 2포항가속기(연), 3Univ. of Warsaw
키워드 helical nanofilaments; nanoconfinement; self-organization and destruction
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