화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 37권 2호
발표분야 고분자구조 및 물성
제목 Extreme nanoseparation by dual-confining effect:  Binary mixtures of bent-core and rod-like liquid crystals in confined geometry  
초록 There has been a growing interest for the achiral bent-core molecules in its unique combinations of polarity and chirality. Especially when they are mixed with the rod-like matrix, it shows more interesting phenomena that helicity change, induced antiferroelectric order, and mesoscale stabilization for nanoseparation. By confining this binary mixtures in one-dimensional nanochennels (AAO, anodic aluminum oxide), it is possible not only to induce individual high-order alignment but also to enable controlling the specific mutual orientation upon varying its molar concentration. In this study, X-ray diffraction (GIXD) and various visualizing techniques (SEM, TEM and POM) were combined to reveal the grounds of structural transitions and the presence of short-range correlation. This provides the important insight into the interaction between two different molecules in confined geometry, and the clue to the crucial possibility for further applications of B4 phases in the matrix.
저자 김한임, 윤동기, 류성호, 이선희, 이상복
소속 한국과학기술원
키워드 Binary mixture; GIXD; Liquid crystal; physical confining
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