Polymer-dispersed liquid crystals: liquid crystal/polymer composites as electro-active materials

1996 ◽  
Author(s):  
Humaira M. Siddiqi ◽  
Michel Dumon ◽  
Jean P. Pascault
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Polymer Composites ◽  
Liquid Crystal Polymer ◽  
Active Materials ◽  
Crystal Polymer ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed

NMR Characterization of Liquid Crystal—Polymer Interactions in Polymer-Dispersed Liquid Crystals

1997 ◽  
Vol 51 (11) ◽  
pp. 1639-1643 ◽  
Author(s):  
Peter A. Mirau ◽  
Mohan Srentvasarao
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Liquid Crystal Polymer ◽  
Butyl Methacrylate ◽  
Magic Angle ◽  
Crystal Polymer ◽  
Nmr Characterization ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed ◽  
Polymer Interactions

Solid-state nuclear magnetic resonance (NMR) and optical microscopy have been used to study liquid crystal–polymer interactions in polymer-dispersed liquid crystals (PDLCs) composed of the E7 liquid crystal mixture and poly( n-butyl methacrylate) or poly(isobutyl methacrylate). As previously reported, the droplets adopt a bipolar configuration in the PDLCs using poly( n-butyl methacrylate) as the matrix material and a radial configuration in those using poly(isobutyl methacrylate). The NMR signals from the E7 cannot be detected in the bulk state by using magic angle spinning and cross-polarization because of its liquid-like properties. The E7 and the polymer signals are only weakly cross-polarized in 60:40 E7/poly( n-butyl methacrylate) PDLCs but are strongly cross-polarized in the PDLCs with poly(isobutyl methacrylate). We suggest that the differences are due to a change in the surface-anchoring conditions and that NMR spectroscopy may provide a molecular-level probe of the forces that control droplet configuration and the electro-optical properties of these materials.

An electrically light-transmittance-switchable film with a low driving voltage based on liquid crystal/polymer composites

2019 ◽  
Vol 47 (1) ◽  
pp. 106-113 ◽  
Author(s):  
Chunxin Li ◽  
Mei Chen ◽  
Lanying Zhang ◽  
Wenbo Shen ◽  
Xiao Liang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Polymer Composites ◽  
Liquid Crystal Polymer ◽  
Light Transmittance ◽  
Driving Voltage ◽  
Crystal Polymer

Electrical conductivity and rheology of carbon fiber/liquid crystal polymer composites

2007 ◽  
Vol 28 (2) ◽  
pp. 168-174 ◽  
Author(s):  
Julia A. King ◽  
Jason M. Keith ◽  
Ryan C. Smith ◽  
Faith A. Morrison
Keyword(s):  
Electrical Conductivity ◽  
Liquid Crystal ◽  
Carbon Fiber ◽  
Polymer Composites ◽  
Liquid Crystal Polymer ◽  
Crystal Polymer

Hidden Gratings in Holographic Liquid Crystal Polymer-Dispersed Liquid Crystal Films

2018 ◽  
Vol 10 (15) ◽  
pp. 13107-13112 ◽  
Author(s):  
Luciano De Sio ◽  
Pamela F. Lloyd ◽  
Nelson V. Tabiryan ◽  
Timothy J. Bunning
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Polymer ◽  
Liquid Crystal Films ◽  
Polymer Dispersed Liquid Crystal ◽  
Crystal Polymer ◽  
Crystal Films ◽  
Polymer Dispersed

scholarly journals Light-addressable liquid crystal polymer dispersed liquid crystal

2017 ◽  
Vol 7 (5) ◽  
pp. 1581 ◽  
Author(s):  
Luciano De Sio ◽  
Elena Ouskova ◽  
Pamela Lloyd ◽  
Rafael Vergara ◽  
Nelson Tabiryan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Polymer ◽  
Polymer Dispersed Liquid Crystal ◽  
Crystal Polymer ◽  
Polymer Dispersed
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