Influence of Curing Frequency on the Morphology and the Electro-Optical Property of Polymer-Stabilized Cholesteric Textures

The effect of curing frequency on the morphology of polymer networks and the electro-optical property of normal-mode polymer-stabilized cholesteric textures (PSCTs) has been investigated. The scanning electron microscopy indicates that the shape of polymer networks transforms from honeycomb-like to...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2014-01, Vol.588 (1), p.9-16
Main Authors: Lu, Hongbo, Zhang, Jun, Wang, Minghui, Song, Zhigang, Xiong, Xianfeng, Lin, Guangqing, Zhang, Guobing, Wang, Xianghua, Qiu, Longzhen
Format: Article
Language:English
Subjects:
Crystals
Curing
Curing frequency
Deformation
Electric properties
electro-optical property
Frequencies
Liquid crystal polymers
morphology of polymer network
Optical properties
polymer-stabilized cholesteric textures
Scanning electron microscopy
two-stage reorientation process
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Summary:The effect of curing frequency on the morphology of polymer networks and the electro-optical property of normal-mode polymer-stabilized cholesteric textures (PSCTs) has been investigated. The scanning electron microscopy indicates that the shape of polymer networks transforms from honeycomb-like to fiber-like due to the increased solubility of the monomer at higher curing frequencies. The PSCTs cured at lower frequencies with sufficiently large network voids show a two-stage reorientation process that correlates with two kinds of cholesteric liquid crystal (LC) under different environments. The threshold voltage decreases as the curing frequency increases from 1 Hz to 10,000 Hz, while the field-off response time increases.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2013.822298