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Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Volume 339, 2000 - Issue 1
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Liquid Crystal

OFF State Alignment In PDLCs by Polymerization of Monomer Additives

F. P. Nicoletta Dipartimento di Chimica, Università degli Studi della Calabria, 87036, Rende, Italy
,
G. De Filpo Dipartimento di Chimica, Università degli Studi della Calabria, 87036, Rende, Italy
,
F. Iemma Dipartimento di Chimica, Università degli Studi della Calabria, 87036, Rende, Italy
&
G. Chidichimo Dipartimento di Chimica, Università degli Studi della Calabria, 87036, Rende, Italy
Pages 159-166 | Received 13 May 1999, Accepted 27 Jul 1999, Published online: 24 Sep 2006
 
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Abstract

We have investigated the electro-optical properties of polymer dispersed liquid crystal films obtained by a two step phase separation process. Strong OFF state alignments of the liquid crystal were obtained by the application of an electric field during the photo-polymerization step. This memory effect is not present when the monomer molecules show a low solubility in liquid crystal droplets. The influence of monomer concentration on the OFF state alignment of the liquid crystal has been also discussed.

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Related Research Data

Electro-optical response of polymer-dispersed liquid crystal single layers of large nematic droplets oriented by rubbed teflon nanolayers
Source: AIP Publishing

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