The Influence of 4,4’-bis[6-(acryloyloxy)-hexyloxy]biphenyl Contents on the Electro-Optical Properties of Polymer Stabilized Liquid Crystals

2013 ◽  
Vol 634-638 ◽  
pp. 2523-2526
Author(s):  
Hui Chang ◽  
Wen Juan Fan ◽  
Xiao Li Liu ◽  
Hong Ying Huo
Keyword(s):  
Optical Properties ◽  
Liquid Crystals ◽  
Response Time ◽  
Polymer Network ◽  
Contrast Ratio ◽  
Monomer Concentration ◽  
Helical Structure ◽  
Switching Process ◽  
Polymer Stabilized ◽  
Structure Of Liquid

The polymer stabilized liquid crystals (PSLC) films was prepared subsequently based on the mesogenic diacrylate monomer 4,4’-bis[6-(acryloyloxy)-hexyloxy]biphenyl (BAB6). The effects of BAB6 on the morphology of polymer network as well as the electro-optical properties of the PSLC films were investigated. The helical structure of liquid crystals was observed in the morphology of polymer network by SEM. Further, a single switching process was observed at lower monomer concentration in this study compared with the former publication. When BAB6 concentration reached 7 %, the response time and contrast ratio of PSLC film were 7 ms and 16.8, respectively.

scholarly journals Thermo-Chromic Response of Polymer Stabilized Cholesteric Liquid Crystal for Thermal Imaging

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Rishi Kumar
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Thermal Imaging ◽  
Cholesteric Liquid Crystal ◽  
Helical Structure ◽  
Cholesteric Liquid Crystals ◽  
Polymer Stabilized

Cholesteric liquid crystal (Ch-LC) exhibits many remarkable optical properties due to formation of a macroscopic helical structure. A low amount of monomer (5wt.%) is dispersed into cholesteric liquid crystal and get polymerized under UV radiations to form polymer stabilized cholesteric texture (PSCT). The thermo-chromic response made this device suitable for the developing applications in thermal imaging. Temperature based measurements of PSCT exploits the key property of some polymer stabilized cholesteric liquid crystals (PSCLC) to reflect definite colors at specific temperatures. The selective color of PSCT texture shifts with raise in temperature from 30oC to 85oC, which can be utilized in thermal imaging applications.

P‐148: Chiral Polymer Network of Polymer‐stabilized Blue Phase Liquid Crystals

2019 ◽  
Vol 50 (1) ◽  
pp. 1788-1791
Author(s):  
Yifan Feng ◽  
Changli Sun ◽  
Shenghao Zha ◽  
Jiangang Lu
Keyword(s):  
Liquid Crystals ◽  
Polymer Network ◽  
Phase Liquid ◽  
Blue Phase ◽  
Polymer Stabilized ◽  
Chiral Polymer

scholarly journals Effects of silica nanoparticles on electro-optical properties of polymer-stabilized liquid crystals

2014 ◽  
Vol 22 (15) ◽  
pp. 18513 ◽  
Author(s):  
Che-Ju Hsu ◽  
Chih-Chin Kuo ◽  
Chia-Ding Hsieh ◽  
Chi-Yen Huang
Keyword(s):  
Optical Properties ◽  
Liquid Crystals ◽  
Silica Nanoparticles ◽  
Polymer Stabilized

Optical Properties of Polymer Stabilized Cholesteric Liquid Crystals

2002 ◽  
Vol 277 (1) ◽  
pp. 75-83 ◽  
Author(s):  
V. Laux ◽  
F. Roussel ◽  
J.-M. Buisine
Keyword(s):  
Optical Properties ◽  
Liquid Crystals ◽  
Cholesteric Liquid Crystals ◽  
Polymer Stabilized

Infrared Liquid Crystal Tunable Filters

1997 ◽  
Vol 479 ◽  
Author(s):  
Shin-Tson Wu ◽  
Chiung-Sheng Wu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Absorption Coefficient ◽  
Response Time ◽  
Layer Thickness ◽  
Absorption Spectra ◽  
Computer Simulations ◽  
Contrast Ratio ◽  
Tunable Filters ◽  
Fabry Perot

AbstractComputer simulations on Fabry-Perot liquid crystal tunable filters are performed in the 3–5 and 8–12 μm bands and some discrete laser lines. Effects of transmittance, contrast ratio and response time on liquid crystal birefringence, layer thickness, absorption coefficient and reflectivity of mirrors are analyzed. Absorption spectra and responsible mechanisms of liquid crystals in the 2.5–20 μm region are studied. The fluorinated tolane and diphenyl-diacetylenes and dialkyl diphenyldiacetylenes are found to possess low absorption in the mid-IR range. Mixtures of these compounds will find useful applications for the proposed IR tunable filters.

Synthesis of chiral azobenzene-based compounds for use in the photochemical tuning of the helical structure of liquid crystals

2003 ◽  
Vol 30 (10) ◽  
pp. 1219-1223 ◽  
Author(s):  
Seiji Kurihara ◽  
Teppei Yoshioka ◽  
Tomonari Ogata ◽  
Alam Md Zahangir ◽  
Takamasa Nonaka
Keyword(s):  
Liquid Crystals ◽  
Helical Structure ◽  
Structure Of Liquid
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