Field-induced textures of polymer-dispersed chiral liquid crystal microdroplets
- 1 February 1991
- journal article
- research article
- Published by Taylor & Francis Ltd in Liquid Crystals
- Vol. 9 (2), 245-251
- https://doi.org/10.1080/02678299108035502
Abstract
We have microscopically observed the textures of very large droplets of cholesteric liquid crystal in a polymer matrix under the influence of an electric field E. When E = 0, the droplets exhibit rings and often a disclination line extends from the centre to the periphery of the droplet. As E increases, the droplet undergoes a progressive transition to a uniform-appearing texture. This uniform region first occurs near the centre of the droplet, then increases in radius as the field is increased. We propose that the field-off texture corresponds to the Frank-Pryce spherulite model while the uniform field-on texture is the planar texture.Keywords
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