scholarly journals Sandwich organization of non-ionic surfactant liquid crystalline phases as induced by large inorganic K4Nb6O17 nanosheets

2016 ◽  
Vol 52 (8) ◽  
pp. 1594-1597 ◽  
Author(s):  
R. Guégan ◽  
K. Sueyoshi ◽  
S. Anraku ◽  
S. Yamamoto ◽  
N. Miyamoto
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Nonionic Surfactants ◽  
Ionic Surfactant ◽  
Crystalline Phases ◽  
Liquid Crystalline Phases ◽  
Crystal Properties

While retaining its liquid crystal properties, niobate nanosheets were used to sandwich a lamellar monodomain made up of nonionic surfactants and water.

Morphology of elastic nematic liquid crystal membranes

Soft Matter ◽  
2017 ◽  
Vol 13 (32) ◽  
pp. 5366-5380 ◽  
Author(s):  
Pardis Rofouie ◽  
Damiano Pasini ◽  
Alejandro D. Rey
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Liquid Crystalline ◽  
Cell Membranes ◽  
Biological Materials ◽  
Crystalline Phases ◽  
Liquid Crystalline Phases

Liquid crystalline phases found in many biological materials, such as actin, DNA, cellulose, and collagen can be responsible for the deformation of cell membranes.

Induced frustrated twist grain boundary liquid crystalline phases in binary mixtures of achiral hockey stick-shaped and chiral rod-like materials

2019 ◽  
Vol 7 (34) ◽  
pp. 10530-10543 ◽  
Author(s):  
Susanta Chakraborty ◽  
Malay Kumar Das ◽  
Alexej Bubnov ◽  
Wolfgang Weissflog ◽  
Dorota Węgłowska ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Grain Boundary ◽  
Binary Mixtures ◽  
Liquid Crystalline ◽  
Ferroelectric Liquid Crystal ◽  
Crystalline Phases ◽  
Hockey Stick ◽  
Liquid Crystalline Phases

Induction of TGB phases in binary mixtures of hockey stick-shaped and chiral ferroelectric liquid crystal compounds.

scholarly journals Luminescence modulation in liquid crystalline phases containing a dispiro[fluorene-9,11′-indeno[1,2-b]fluorene-12′,9′′-fluorene] core

2014 ◽  
Vol 2 (21) ◽  
pp. 4265-4275 ◽  
Author(s):  
Sébastien Thiery ◽  
Benoît Heinrich ◽  
Bertrand Donnio ◽  
Cyril Poriel ◽  
Franck Camerel
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Crystalline Phases ◽  
Thermotropic Liquid Crystal ◽  
Liquid Crystalline Phases ◽  
Crystal Phases ◽  
Liquid Crystal Phases

Luminescence modulations of a bulky dispiro[fluorene-9,11′-indeno[1,2-b]fluorene-12′,9′′-fluorene] (DSF-IF) core embedded in thermotropic liquid crystal phases.

Polycondensation in liquid crystalline phases of nonionic surfactants. Kinetics and morphology

Polymer ◽  
2005 ◽  
Vol 46 (19) ◽  
pp. 7961-7968 ◽  
Author(s):  
Guruswamy Kumaraswamy ◽  
Mohan N. Wadekar ◽  
Vikrant V. Agrawal ◽  
Renu Pasricha
Keyword(s):  
Liquid Crystalline ◽  
Nonionic Surfactants ◽  
Crystalline Phases ◽  
Liquid Crystalline Phases

Liquid crystalline textures and polymer morphologies resulting from electropolymerisation in liquid crystal phases

2015 ◽  
Vol 3 (31) ◽  
pp. 8018-8023 ◽  
Author(s):  
N. Kasch ◽  
I. Dierking ◽  
M. Turner ◽  
P. Romero-Hasler ◽  
E. A. Soto-Bustamante
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Crystalline Phases ◽  
Liquid Crystalline Phases ◽  
Crystal Phases ◽  
Liquid Crystal Phases

A small fraction of an acrylate liquid crystalline monomer (≤5%) is mixed into nematic and smectic liquid crystalline phases, and polymerised through the application of a voltage (electropolymerisation).

Organic reactions in liquid crystalline solvents. 8. Deuterium NMR studies of the solubilization of some aromatic ketones in the liquid crystalline phases of 4′-butylbicyclohexyl-4-carbonitrile

1989 ◽  
Vol 67 (1) ◽  
pp. 148-159 ◽  
Author(s):  
Brian J. Fahie ◽  
D. Scott Mitchell ◽  
William J. Leigh
Keyword(s):  
Liquid Crystal ◽  
Nematic Phase ◽  
Liquid Crystalline ◽  
Smectic Phase ◽  
Deuterium Nmr ◽  
Nmr Studies ◽  
Crystalline Phases ◽  
Rich Phase ◽  
H Nmr ◽  
Liquid Crystalline Phases

The nature of the solubilization of β-phenyl-4-mefhoxypropiophenone (1) in the nematic and crystal-B liquid crystalline phases of trans,trans-4′-butyl-(1, 1′-bicyclohexyl)-4-carbonitrile (CCH-4) has been investigated by deuterium nmr spectroscopy. This has been carried out using deuterium quadrupolar splitting (ΔvQ) and T1 measurements on 1–15 mol% solutions of two selectively deuterated derivatives of the ketone in CCH-4 over the 25–110 °C temperature range. The nmr studies have been supplemented with differential scanning calorimetry (DSC) and thermal microscopic investigations of variously proportioned mixtures of the parent ketone with CCH-4, over a similar temperature range. For comparison, 2H nmr measurements have also been carried out for solutions of 4-methoxyacetophenone-α,α,α,d3 benzene-d6 and β-(4-cyclohexylphenyl)-4-methoxypro-piophenone-α,α-d2 in the same liquid crystal as a function of temperature. Our results indicate that the limit of solubility of 1 in the smectic phase of CCH-4 is less than 0.5 mol%. At temperatures above 35 °C, excess ketone is solubilized in a ketone-rich nematic phase that coexists with the bulk smectic phase, and the composition of the ketone-rich phase varies continuously with temperature throughout this range. At around 35 °C, the ketone-rich phase transforms into a metastable, non-birefringent phase which is characterized by isotropic nmr behaviour. Prolonged storage at room temperature causes crystallization of this phase, forming a stable binary mixture of ca. 9:1 CCH-4/1 that undergoes a K–Sm transition at 27–28 °C, a Sm–N transition at 43.5–44 °C, and a broad N–I transition at 58–63 °C. This stable modification can also be prepared by rapid cooling of a 10 mol% 1/CCH-4 mixure from the nematic phase. The 2H nmr studies of 4-methoxyacetophenone-α,α,α-d3 and benzene-d6 in CCH-4 indicate that these solutes have somewhat higher solubility in the crystal-B phase of this mesogen. The data necessitate a re-interpretation of our previously reported studies of the excited triplet state behaviour of 1 in the liquid crystalline phases of this material, and may be broadly applicable to numerous other studies of photochemical reactivity in this mesogen that have been reported. Keywords: liquid crystal, smectic, 2H nmr, photochemistry, aromatic ketone, bicyclohexyl-4-carbonitrile,4′-butyl.

Sign in / Sign up

Export Citation Format

Share Document