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Citation: BYUN Myunghwan, WANG Jun, LIN Zhiqun. Organization of Polymer-Dispersed Liquid Crystals froma Liquid Bridge[J]. Acta Physico-Chimica Sinica, ;2009, 25(07): 1249-1253. doi: 10.3866/PKU.WHXB20090746 shu

Organization of Polymer-Dispersed Liquid Crystals froma Liquid Bridge

1.
Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, USA

Received Date: 9 March 2009
Available Online: 22 May 2009

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-ITOgeometry). 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.
- Liquid bridge,
- Polymer-dispersed liquid crystal,
- Controlled evaporative organization,
- "Stick-slip" motion
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