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Effective Medium Theory of Polymer Dispersed Liquid Crystal Droplet Systems II: Partially Oriented Bipolar Droplets

Record type: Article

We construct a theory of the dielectric properties of a polymer dispersed liquid crystal droplet film containing bipolar droplets whose principal axes respond to an electric field. The theory involves a balance of an elastic energy term favouring an initial zero-field distribution of droplet axes and a dielectric energy term favouring droplet orientation parallel to an imposed field. We discuss (i) droplets initially orientationally ordered by an in-plane strain field and (ii) an initially random distribution of droplets. In case (i) we find a weakly droplet concentration dependent sharp threshold field at which droplet reorientation occurs. In case (ii) we find more gradual droplet reorientation. In the latter case the droplet axis distribution exhibits an unexpectedly rich structure.

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Citation

RESHETNYAK, V.Yu., SLUCKIN, T.J. and COX, S.J. (1997) Effective Medium Theory of Polymer Dispersed Liquid Crystal Droplet Systems II: Partially Oriented Bipolar Droplets Journal of Physics D: Applied Physics, 30, (23), pp. 3253-3266.

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Published date: 1997
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 250978
URI: http://eprints.soton.ac.uk/id/eprint/250978
PURE UUID: 5a691b7c-bb42-42ed-9d18-a51d9a2a855a

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Date deposited: 08 Oct 1999
Last modified: 24 Jul 2017 16:42

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Contributors

Author: V.Yu. RESHETNYAK
Author: T.J. SLUCKIN
Author: S.J. COX

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