聚合物分散液晶从液体桥的组装(英文)

来源 :物理化学学报 | 被引量 : 0次 | 上传用户:HIT_Happy
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We report the organization of polymer-dispersed liquid crystals (PDLCs) into ordered concentric rings over large areas by drying a drop of bound PDLC toluene solution (i.e., confined between a spherical lens and an indium tin oxide (ITO)-coated glass substrate; sphere-on-ITO geometry). The formation of regular ring-like deposits was a direct consequence of controlled“stick-slip”cycles of three-phase contact line during the course of solvent evaporation, which was effectively regulated through the use of the sphere-on-ITO geometry. This simple approach based on controlled evaporative organization may provide a new means of processing polymer/LC mixture to produce ordered surface patterns in one step, where microscopic LCs are dispersed within the polymer matrix. We report the organization of polymer-dispersed liquid crystals (PDLCs) into ordered concentric rings over large areas by drying a drop of bound PDLC toluene solution (ie, confined between a spherical lens and an indium tin oxide (ITO) -coated glass substrate; sphere-on-ITO geometry). The formation of regular ring-like deposits was a direct consequence of controlled “stick-slip” cycles of three-phase contact line during the course of solvent evaporation, which was effectively regulated through the use of the sphere-on-ITO geometry. This simple approach based on controlled evaporative organization may provide a new means of processing polymer / LC mixture to produce ordered surface patterns in one step, where microscopic LCs are dispersed within the polymer matrix.
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