Density and phase transition study of the liquid crystal compound 50.16

2015 ◽  
Author(s):  
Debanjan Bhattacharjee ◽  
Ayon Bhattacharjee
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Transition Study ◽  
Crystal Compound

Dependence of Phase Transition of a Bent-Core Liquid Crystal on the Heating Rate

2010 ◽  
Vol 663-665 ◽  
pp. 787-790 ◽  
Author(s):  
Qing Lan Ma ◽  
Yuan Ming Huang
Keyword(s):  
Phase Transition ◽  
Differential Scanning Calorimetry ◽  
Liquid Crystal ◽  
Optical Microscopy ◽  
Heating Rate ◽  
Broad Peak ◽  
Crystal Phase ◽  
Scanning Calorimetry ◽  
Polarized Optical Microscopy ◽  
Crystal Compound

A bent-core liquid crystal compound N,N-bis (4-propoxybenzylidene)benzene- 1,3-diamine was synthesized. Phase transition properties of the synthesized compound with the deferent heating rate were characterized with differential scanning calorimetry and polarized optical microscopy. , respectively. Our results demonstrated that the bent-core compound exhibited the completely undivided multi-phases in heating-rate ranges from 1oC/min to 6oC/min while it showed a broad-peak crystal phase in higher heating-rate ranges of 7-10oC/min for the first heating.

A bent-shape liquid crystal compound with antiferroelectric triclinic-monoclinic phase transition

2003 ◽  
Vol 30 (3) ◽  
pp. 265-271 ◽  
Author(s):  
A. Jákli ◽  
G. G. Nair ◽  
H. Sawade ◽  
G. Heppke
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Monoclinic Phase ◽  
Crystal Compound

Synthesis and Mesomorphism of a Novel Triphenylene-Based Discotic Liquid Crystal with Chiral Chain

2012 ◽  
Vol 557-559 ◽  
pp. 1062-1065 ◽  
Author(s):  
Ming Xia Zhang ◽  
Yi Fei Wang ◽  
Chun Xiu Zhang ◽  
Hao Wu ◽  
Jia Ling Pu
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Ir Spectra ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Phase Transition Behavior ◽  
Chemical Structures ◽  
Discotic Liquid Crystal ◽  
Ft Ir ◽  
Crystal Compound

A novel triphenylene-based discotic liquid crystal compound was synthesized in this study. The chemical structures of compounds were characterized by 1HNMR spectra, FT-IR spectra and were confirmed. The phase transition behavior was studied in the combination of texture observation by DSC and POM equipped with a temperature-controllable hot-stage. The object compound showed liquid crystal phase and the results showed that columnar liquid crystal phase between 90.1°C and 138.1 °C during heating.

Dielectric investigation of the liquid crystal compound with the directSmA*–SmCA* phase transition

2016 ◽  
Vol 43 (5) ◽  
pp. 654-663 ◽  
Author(s):  
P. Perkowski ◽  
M. Mrukiewicz ◽  
J. Herman ◽  
P. Kula ◽  
L. Jaroszewicz
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Crystal Compound

Reversible microscale assembly of nanoparticles driven by the phase transition of a thermotropic liquid crystal

2017 ◽  
Author(s):  
Niamh Mac Fhionnlaoich ◽  
Stephen Schrettl ◽  
Nicholas B. Tito ◽  
Ye Yang ◽  
Malavika Nair ◽  
...  
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Self Assembly ◽  
Nematic Phase ◽  
Hierarchical Control ◽  
Building Blocks ◽  
Model System ◽  
Microscopic Level ◽  
Reversible Process ◽  
Thermotropic Liquid Crystal

The arrangement of nanoscale building blocks into patterns with microscale periodicity is challenging to achieve via self-assembly processes. Here, we report on the phase transition-driven collective assembly of gold nanoparticles in a thermotropic liquid crystal. A temperature-induced transition from the isotropic to the nematic phase leads to the assembly of individual nanometre-sized particles into arrays of micrometre-sized aggregates, whose size and characteristic spacing can be tuned by varying the cooling rate. This fully reversible process offers hierarchical control over structural order on the molecular, nanoscopic, and microscopic level and is an interesting model system for the programmable patterning of nanocomposites with access to micrometre-sized periodicities.

5, 6-Difluoro-benzofuran:A new core structure for the design of liquid crystal compound

2020 ◽  
Vol 35 (10) ◽  
pp. 1000-1005
Author(s):  
Jian LI ◽  
◽  
Zhao-yi CHE ◽  
Ling-chao MO ◽  
Ming-gang HU ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Core Structure ◽  
Crystal Compound

Characterization of some mesogenic alkyl 1-thioglycosides

2002 ◽  
Vol 80 (8) ◽  
pp. 1162-1165 ◽  
Author(s):  
B Henrissat ◽  
G K Hamer ◽  
M G Taylor ◽  
R H Marchessault
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Solid State ◽  
Solid State Nmr ◽  
Liquid Crystalline ◽  
Liquid Crystal Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Liquid Crystalline Phases

A series of dodecyl 1-thio-β-D-glycosides has been synthesized and characterized (DSC, NMR, CP MAS, X-ray diffraction) as possible new marking materials with liquid-crystalline properties. These compounds undergo solid to liquid crystal phase transitions at various temperatures, which depend on the nature of the carbohydrate part of the structure. Their liquid-crystalline phases show extreme shear thinning behaviour.Key words: liquid crystal, powder X-ray diffraction, phase transition, thioglycoside, solid-state NMR, marking material

Phase Transition Detection in Liquid Crystal Analysis By Mathematical Morphology

2021 ◽  
pp. 117015
Author(s):  
A. Farinha ◽  
F.C. Flores ◽  
A.R. Sampaio ◽  
N.M. Kimura ◽  
F.C.M. Freire
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Mathematical Morphology

Comparative experimental optical studies on 7.O5O.7 dimeric liquid crystal compound using theoretical models

2017 ◽  
Vol 45 (4) ◽  
pp. 586-592 ◽  
Author(s):  
Debanjan Bhattacharjee ◽  
Parameswara Rao Alapati ◽  
Ayon Bhattacharjee
Keyword(s):  
Liquid Crystal ◽  
Theoretical Models ◽  
Optical Studies ◽  
Crystal Compound
Sign in / Sign up

Export Citation Format

Share Document