Rheo-dielectric behavior of low molecular weight liquid crystal 2. Behavior of 8CB in nematic and smectic states

1999 ◽  
Vol 38 (2) ◽  
pp. 100-107 ◽  
Author(s):  
Hiroshi Watanabe ◽  
Tomohiro Sato ◽  
Motoyuki Hirose ◽  
Kunihiro Osaki ◽  
Ming-Long Yao
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Dielectric Behavior ◽  
Low Molecular Weight

Swelling dynamics of liquid crystal elastomers swollen with low molecular weight liquid crystals

2004 ◽  
Vol 69 (2) ◽  
Author(s):  
Yusril Yusuf ◽  
Yukitada Ono ◽  
Yusuke Sumisaki ◽  
P. E. Cladis ◽  
Helmut R. Brand ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Low Molecular Weight ◽  
Liquid Crystal Elastomers

Electrorheological Effect in the Nematic and the Smectic A Phases of Low Molecular Weight Liquid Crystal

1999 ◽  
Vol 13 (14n16) ◽  
pp. 2005-2010 ◽  
Author(s):  
Keishi Negita
Keyword(s):  
Phase Transition ◽  
Molecular Weight ◽  
Liquid Crystal ◽  
Electric Field ◽  
Low Molecular Weight ◽  
Large Decrease ◽  
Smectic A ◽  
General Properties ◽  
Electrorheological Effect ◽  
Phase Sequence

Electrorheological (ER) effects in the nematic (Ne), the smectic A (SmA) and the isotropic (Is) phases of octyloxy cyanobiphenyl (8OCB) are studied. When an electric field is applied, a large decrease of the viscosity is observed in the Sm A phase, while in the Ne phase an increase of the viscosity is recognized with an anomalous ER effect near the SmA-Ne phase transition. These behaviors are suggested to be general properties of the liquid crystal exhibiting the phase sequence of SmA-Ne-Is.

scholarly journals Enlargement of blue-phase stability for rod-like low-molecular-weight chiral nematic liquid crystal mixtures

2014 ◽  
Vol 41 (11) ◽  
pp. 1619-1626 ◽  
Author(s):  
Beomjong Kim ◽  
Yeon Jung Um ◽  
Seongun Jeon ◽  
Hirotugu Kikuchi ◽  
Sung-Kyu Hong
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Phase Stability ◽  
Low Molecular Weight ◽  
Chiral Nematic ◽  
Blue Phase

Liquid-crystal photoalignment using low-molecular-weight photo-cross-linkable composites

2001 ◽  
Vol 79 (1) ◽  
pp. 30-32 ◽  
Author(s):  
O. Yaroshchuk ◽  
L. G. Cada ◽  
M. Sonpatki ◽  
L.-C. Chien
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Low Molecular Weight

Aggregation States and Bistable Light Switching of (Liquid Crystalline Polymer)/(Low Molecular Weight Liquid Crystal) Mixture Systems

1989 ◽  
Vol 18 (5) ◽  
pp. 817-820 ◽  
Author(s):  
Tisato Kajiyama ◽  
Hirotsugu Kikuchi ◽  
Akira Miyamoto ◽  
Satoru Moritomi ◽  
Jenn Chiu Hwang
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Low Molecular Weight ◽  
Crystal Mixture

Airbrushed Liquid Crystal/Polymer Fibers for Responsive Textiles

2016 ◽  
Vol 100 ◽  
pp. 43-49 ◽  
Author(s):  
John L. West ◽  
Jun Ren Wang ◽  
Antal Jákli
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Temperature Sensors ◽  
Polymer Fibers ◽  
Electrospun Fibers ◽  
Low Molecular Weight ◽  
Solution Composition ◽  
The Core ◽  
Crystal Polymer ◽  
Formation Conditions

We report formation of complex responsive fibers consisting of a low molecular weight liquid crystal (LC) core surrounded by a polymer sheath using simple airbrush or jet spraying techniques. The fibers are formed using a solution of LC and polymer dissolved in a common solvent. With proper control of the solution composition and formation conditions the fibers self‐assemble. The diameter of the resulting fibers can be adjusted over a range spanning from one to tens of microns. The core of the fiber retains all of the responsive properties associated with low molecular weight LCs. A nematic LC core's director aligns along the long axis of the fiber making them highly birefringent. An electric field applied across the fiber changes both the director alignment and the optical properties of the fiber. Alternatively, thermochromic fibers are formed using a cholesteric LC in the core. Unlike similar electrospun fibers, the airbrushed fibers can be sprayed as continuous mats on virtually any surface or woven into textiles. The resulting fabrics can be made into displays, thermochromic temperature sensors, or for detection of chemical or biological agents. They offer numerous opportunities for wearable textiles that respond optically to a variety of stimuli.

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