scholarly journals A fibre forming smectic twist–bent liquid crystalline phase

RSC Advances ◽  
2015 ◽  
Vol 5 (15) ◽  
pp. 11207-11211 ◽  
Author(s):  
M. G. Tamba ◽  
S. M. Salili ◽  
C. Zhang ◽  
A. Jákli ◽  
G. H. Mehl ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Crystalline Phase ◽  
Nematic Phase ◽  
Liquid Crystalline ◽  
Liquid Crystalline Phase ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Filament Formation

We demonstrate the nanostructure and filament formation of a novel liquid crystal phase of a dimeric mesogen below the twist–bend nematic phase.

Synthesis and Characterization of Terthiophene-Based Rod-Like Liquid Crystals

2012 ◽  
Vol 532-533 ◽  
pp. 61-65
Author(s):  
Xiao Hui Liu ◽  
Zhong Xiao Li ◽  
Song Ya Zhang ◽  
Jia Ling Pu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Schiff’S Base ◽  
Thermally Induced ◽  
H Nmr ◽  
Clearing Point ◽  
Temperature Ranges

With 2,2',5',2''-Terthiophene as starting material, two liquid crystalline compounds containing Schiff’s base unit were synthesized in this paper. The structure of the compounds was confirmed by FTIR and 1H NMR. The thermally induced phase transition behaviors were investigated by POM and DSC, and the temperature ranges of liquid crystal phase of the two compounds were compared. Results showed that the symmetric compound exhibited a lower clearing point temperature and broader temperature range of liquid crystal phase.

Antiferroelectric Liquid Crystals from Achiral Molecules And A Liquid Conglomerate

1999 ◽  
Vol 559 ◽  
Author(s):  
David M. Walba ◽  
Eva Körblova ◽  
Renfan Shao ◽  
Joseph E. Maclennan ◽  
Darren R. Link ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Crystalline Structures ◽  
Chiral Liquid Crystal ◽  
Antiferroelectric Liquid Crystals ◽  
Liquid Crystal Structure

ABSTRACTUntil recently, it was an empirical fact that creation of a chiral liquid crystal phase required enantiomerically enriched molecules. In addition, to date known ferroelectric and antiferroelectric smectics have also been composed of enantiomerically enriched molecules. Herein are described the first examples of the formation of chiral and antiferroelectric supermolecular liquid crystalline structures from achiral molecules. In one case (apparently metastable) the liquid crystal structure is macroscopically chiral, with samples composed of heterochiral macroscopic domains: a liquid conglomerate.

scholarly journals pH dependent isotropic to nematic phase transitions in graphene oxide dispersions reveal droplet liquid crystalline phases

2014 ◽  
Vol 50 (50) ◽  
pp. 6668-6671 ◽  
Author(s):  
Rachel Tkacz ◽  
Rudolf Oldenbourg ◽  
Shalin B. Mehta ◽  
Morteza Miansari ◽  
Amitabh Verma ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Phase Transitions ◽  
Crystalline Phase ◽  
Nematic Phase ◽  
Liquid Crystalline ◽  
Liquid Crystalline Phase ◽  
Crystalline Phases ◽  
Liquid Crystalline Phases ◽  
Ph Dependent ◽  
Droplet Liquid

The existence of a droplet liquid crystalline phase of graphene oxide (GO) is reported.

Dynamics of liquid crystalline phase transition in sedimenting platelet-like particles

Soft Matter ◽  
2018 ◽  
Vol 14 (16) ◽  
pp. 3049-3056 ◽  
Author(s):  
Jize Sui ◽  
Yiming Ding ◽  
Masao Doi
Keyword(s):  
Phase Transition ◽  
Crystalline Phase ◽  
Nematic Phase ◽  
Liquid Crystalline ◽  
Liquid Crystalline Phase ◽  
Isotropic Phase ◽  
Closed Container ◽  
Crystalline Phase Transition

When a suspension of platelet-like particles sediment in a closed container, the particles undergo isotropic–nematic phase transition (I–N transition), and there appears a clear interface between the isotropic phase and the nematic phase.

Chiroptical switching caused by crystalline/liquid crystalline phase transition of a chiral bowl-shaped molecule

2016 ◽  
Vol 52 (24) ◽  
pp. 4585-4588 ◽  
Author(s):  
Masaki Yamamura ◽  
Kimiya Sukegawa ◽  
Daichi Okada ◽  
Yohei Yamamoto ◽  
Tatsuya Nabeshima
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Crystalline Phase ◽  
Phosphorus Atom ◽  
Liquid Crystalline ◽  
Liquid Crystalline Phase ◽  
Alkyl Chains ◽  
Crystalline Phase Transition

The liquid crystal of a chiral bowl-shaped molecule having a central-phosphorus atom and long alkyl chains was developed.

High-pressure DTA Studies of the Phase Behaviors of 4-n -butyl-thiocyanobiphenyl (4TCB) and 4-w-pentyl-4’-n-phenyl-cyanocyclohexane (5HCP)

1999 ◽  
Vol 54 (12) ◽  
pp. 675-678 ◽  
Author(s):  
M. Massalska-Arodź ◽  
A. Würflinger ◽  
D. Büsinga
Keyword(s):  
High Pressure ◽  
Liquid Crystal ◽  
Transition Temperature ◽  
Pressure Dependence ◽  
Nematic Phase ◽  
Liquid Crystalline ◽  
Melting Curve ◽  
Liquid Crystal Phase ◽  
Dta Studies ◽  
Phase Behaviors

Abstract DTA measurements of 4-n-butyl-thiocyanobiphenyl (4TCB) and ρ-cyano-ρ’-pentylphenyl-cyclohex-ane (5HCP) have been performed in the temperature range 220 K-390 K and pressures up to 400 MPa. For 4TCP a transition from a crystalline to a liquid crystal phase (probably smectic E) could be detect-ed at higher pressures > 90 MPa. The pressure dependence of the transition temperature has been estab-lished. At pressures lower than 88.7 MPa no transition of SmE into a crystal or into a glass has been found. For 5HCP only the melting curve was observed, in contrast to 5PCH, which displays a liquid crystalline nematic phase.

Relationship between liquid crystalline phase stability and ingredient composition in liquid crystal oil–water emulsion

2016 ◽  
Vol 43 (10) ◽  
pp. 1495-1502 ◽  
Author(s):  
Wan Su Jung ◽  
Hanui Ye ◽  
Mateen Fahad ◽  
Jun Bae Lee ◽  
Su Ji Kim ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phase Stability ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Liquid Crystalline Phase ◽  
Water Emulsion ◽  
Oil Water ◽  
Ingredient Composition

Structure properties Relationships of Dendritic and Multipodal Liquid Crystal Materials based on Carbosilazane Cores

2001 ◽  
Vol 709 ◽  
Author(s):  
R. Elsäßer ◽  
D. Rodriguez Martin ◽  
R. M. Richardson ◽  
D. J. Photinos ◽  
J. W. Goodby ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Phase Behaviour ◽  
Liquid Crystalline Phase ◽  
Organic Hybrid ◽  
Columnar Phase ◽  
Smectic C ◽  
Phase Structures ◽  
Structure Properties

ABSTRACTThe synthesis of the first inorganic-organic hybrid liquid crystal dendrimers based on carbosilazane cores, which exhibit enantiotropic nematic and smectic C and columnar phase behaviour is presented and the liquid-crystalline phase properties and the phase structures are discussed.

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