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Effect of a Dual Functional Polymer on the Electro-Optical Properties of Blue Phase Liquid Crystals

1
School of Electronic and Information Engineering, Hebei University of Technology, Tianjin 300401, China
2
Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(7), 1128; https://doi.org/10.3390/polym11071128
Received: 3 June 2019 / Revised: 23 June 2019 / Accepted: 25 June 2019 / Published: 3 July 2019
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Abstract

The effects of the fluorinated monomer with an ethynyl group on the electro-optical properties of polymer-stabilized blue phase liquid crystals (PSBPLCs) were investigated in different polymer systems. In rigid polymer systems, the Kerr constant can be increased by about 27.6%, while keeping a microsecond response time. In soft polymer systems, hysteresis decreased by about 45.5% and residual birefringence can be reduced from 1.85% to 0.6%. The above phenomena exhibited dual functions of affecting the anchoring energy and the viscosity of the system simultaneously. The results provide a potential value for the ethynyl-containing monomers in PSBPLC systems. View Full-Text
Keywords: blue phase; ethynyl group; polymer system; Kerr effect; liquid crystal devices blue phase; ethynyl group; polymer system; Kerr effect; liquid crystal devices
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gao, L.; Wang, K.-M.; Zhao, R.; Ma, H.-M.; Sun, Y.-B. Effect of a Dual Functional Polymer on the Electro-Optical Properties of Blue Phase Liquid Crystals. Polymers 2019, 11, 1128.

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