THE POLYMER SOCIETY OF KOREA

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 세션명 콜로이드 및 분자조립 부문위원회 (I) 제1회장 1L1-8 2021-04-8 16:45-17:10 Active stratification of colloidal particle mixtures under the lateral compression 김규한 서울과학기술대학교 김규한† 서울과학기술대학교 Stratification of a particle mixture is a very interesting process due to the impartment of unique surface properties that are quite different from the interior, which can be utilized in various fields, such as multi-functional coatings and controlled drug-releases. Thus, the related studies have been conducted intensively, and in particular, a self-stratification of particle mixtures have been attracted recently. This self-stratification of particle mixture solutions can be simply formed by evaporating the solvent, but this does not seem to be an appropriate process to achieve a uniformly stratified structures with a large surface area. Therefore, we here introduce a new approach for stratifying the particle mixtures by applying a lateral compression to particle mixture layers at the air-water. Based on this, we successfully report that the uniformly stratified structures are simply achieved with a large area, and the thickness of each particle layer can be even controllable.