scholarly journals Tilt orientationally disordered hexagonal columnar phase of phthalocyanine discotic liquid crystals

2014 ◽  
Vol 89 (6) ◽  
Author(s):  
Makoto Yoneya ◽  
Takayoshi Makabe ◽  
Ayano Miyamoto ◽  
Yo Shimizu ◽  
Yasuo Miyake ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals ◽  
Columnar Phase ◽  
Hexagonal Columnar

Hydrogen-bonding induced melamine-core supramolecular discotic liquid crystals

2017 ◽  
Vol 5 (35) ◽  
pp. 9165-9173 ◽  
Author(s):  
Ling-Xiang Guo ◽  
Yu-Han Liu ◽  
Li Wang ◽  
Meng Wang ◽  
Bao-Ping Lin ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Liquid Crystals ◽  
Discotic Liquid Crystals ◽  
Hexagonal Columnar

A variety of hydrogen-bonding induced melamine-core supramolecular discotic liquid crystals possessing hexagonal columnar, rectangular columnar and square columnar phases are described.

Effect of Temperature on the Columnar Tilt of Discotic Liquid Crystals

2010 ◽  
Vol 428-429 ◽  
pp. 186-193 ◽  
Author(s):  
Wen Jun Zheng ◽  
Chen Yan Chiang ◽  
Chi Wi Ong
Keyword(s):  
Free Energy ◽  
Liquid Crystals ◽  
Surface Free Energy ◽  
Substrate Surface ◽  
Effect Of Temperature ◽  
Discotic Liquid Crystals ◽  
Columnar Phase ◽  
Mechanical Shearing

The effect of temperature on the tilt of discotic columns in a columnar phase has been studied. The homogenous alignment of discotic columns is achieved by applying a mechanical shearing. In the columnar phase, the tilt of the discotic columns at substrate surface is found to change with temperature. A decrease in the temperature of the substrates causes an increase in the pretilt of the discotic columns. The phenomenon is explained based on the consideration of surface free energy at the interface of the substrate.

Solid-state 13C NMR study of banana liquid crystals – 2: Alkyl tail-group packing environments in the hexagonal columnar phase

2013 ◽  
Vol 1040 ◽  
pp. 117-121 ◽  
Author(s):  
Hiromichi Kurosu ◽  
Yumi Endo ◽  
Saori Kimura ◽  
Tomoko Hashimoto ◽  
Motoi Harada ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Solid State ◽  
13C Nmr ◽  
Columnar Phase ◽  
Nmr Study ◽  
Hexagonal Columnar ◽  
Alkyl Tail ◽  
Solid State 13C Nmr

On the rectangular-hexagonal columnar phase transition in disc-like liquid crystals

1983 ◽  
Vol 44 (5) ◽  
pp. 597-602 ◽  
Author(s):  
C. Destrade ◽  
Nguyen Huu Tinh ◽  
J. Malthête ◽  
A.M. Levelut
Keyword(s):  
Phase Transition ◽  
Liquid Crystals ◽  
Columnar Phase ◽  
Hexagonal Columnar

Optoelectronic exploration of novel non-symmetrical star-shaped discotic liquid crystals based on cyanopyridine

2018 ◽  
Vol 42 (20) ◽  
pp. 16999-17008 ◽  
Author(s):  
D. R. Vinayakumara ◽  
K. Swamynathan ◽  
Sandeep Kumar ◽  
Airody Vasudeva Adhikari
Keyword(s):  
Liquid Crystals ◽  
Charge Transport ◽  
Transport Properties ◽  
Blue Light ◽  
Room Temperature ◽  
Light Emission ◽  
Discotic Liquid Crystals ◽  
Blue Light Emission ◽  
Hexagonal Columnar

Novel unsymmetrical star-shaped cyanopyridines were shown to possess an ordered hexagonal columnar assembly at room temperature. Their inherent intramolecular charge transport properties cause a technologically important intense blue light emission in the aggregated state.

Ordering in discotic liquid crystals

1984 ◽  
Vol 45 (4) ◽  
pp. 709-714 ◽  
Author(s):  
E.I. Kats ◽  
M. I. Monastyrsky
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals

scholarly journals Nanoporous Films with Photoswitchable Absorption Kinetics Based on Polymerizable Columnar Discotic Liquid Crystals

2021 ◽  
Vol 13 (3) ◽  
pp. 4385-4392
Author(s):  
Jody A. M. Lugger ◽  
Patricia P. Marín San Román ◽  
Camiel C. E. Kroonen ◽  
Rint P. Sijbesma
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals ◽  
Absorption Kinetics ◽  
Nanoporous Films
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