scholarly journals A simple theory of molecular organization in fullerene-containing liquid crystals

2005 ◽  
Vol 123 (16) ◽  
pp. 164904 ◽  
Author(s):  
S. D. Peroukidis ◽  
A. G. Vanakaras ◽  
D. J. Photinos
Keyword(s):  
Liquid Crystals ◽  
Simple Theory ◽  
Molecular Organization

The Processing of LC Thermosets in Orienting External Fields

1996 ◽  
Vol 425 ◽  
Author(s):  
Hilmar Körner ◽  
Atsushi Shiota ◽  
Christopher K. Ober
Keyword(s):  
Liquid Crystals ◽  
Data Storage ◽  
Liquid Crystalline ◽  
Polymeric Materials ◽  
Optical Filters ◽  
Mechanical Anisotropy ◽  
Molecular Organization ◽  
External Fields ◽  
Wide Range ◽  
Structural Applications

Liquid crystals may possess macroscopically aligned structural, electrical and optical properties when oriented in external fields which leads to a wide range of applications including optical filters, displays, and data storage devices. Combining the properties of thermosets [1, 2] with the properties of liquid crystals (LC) is a logical step towards creating new materials. The development of liquid crystalline thermosets (LCT) has been motivated by their potential use in structural applications and the need for more adaptable polymeric materials with tunable strength and stiffness as well as tailored mechanical anisotropy. It is known that mechanical properties of conventional thermosets are determined by many factors including curing agent, filler, degree of cure, crosslink density, glass transition temperature, and accelerator. In LCT's all of these factors will ultimately be controlled by the both the molecular organization and orientation of the LC phase.

Molecular organization in liquid crystals: A comparative computational analysis

2008 ◽  
Vol 53 (7) ◽  
pp. 1168-1172 ◽  
Author(s):  
N. Ajeetha ◽  
G. Srinivas ◽  
D. P. Ojha
Keyword(s):  
Liquid Crystals ◽  
Computational Analysis ◽  
Molecular Organization

scholarly journals Ion-Conducting Flexible Thin Films of Composites from Poly(ethylene oxide) and Nematic Liquid Crystals E8—Characterization by Impedance and Dielectric Relaxation Spectroscopy

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4465
Author(s):  
Georgi B. Hadjichristov ◽  
Todor E. Vlakhov ◽  
Yordan G. Marinov ◽  
Nicola Scaramuzza
Keyword(s):  
Thin Films ◽  
Liquid Crystals ◽  
Ethylene Oxide ◽  
Dielectric Relaxation ◽  
Electrical Impedance ◽  
Nematic Liquid Crystals ◽  
Molecular Organization ◽  
Poly Ethylene Oxide ◽  
Ion Conducting ◽  
Poly Ethylene

Complex electrical impedance and dielectric spectroscopy were applied to study the dielectric relaxations and their thermal behavior in ion-conducting composites/complexes from polymer poly(ethylene oxide) (PEO) and E8 nematic liquid crystals (LCs), at the compositional ratio PEO:E8 = 70:30 wt%. Flexible thin films of PEO/E8 with a thickness of 150 μm were inspected, as well as such films from Na+ ion-conducting electrolyte PEO/E8/NaIO4 with the same PEO:E8 compositional ratio, but additionally containing 10 wt.% from the salt sodium metaperiodate (NaIO4) as a dopant of Na+ ions. The molecular dynamics, namely the dielectric relaxation of PEO/E8 and PEO/E8/NaIO4, were characterized through analyses of complex impedance and dielectric spectra measured in the frequency range of 1 Hz–1 MHz, under variation of temperature from below to above the glass-transition temperature of these composites. The relaxation and polarization of dipole formations in PEO/E8 and PEO/E8/NaIO4 were evidenced and compared in terms of both electrical impedance and dielectric response depending on temperature. The results obtained for molecular organization, molecular relaxation dynamics, and electric polarization in the studied ion-conducting polymer/LC composites/complexes can be helpful in the optimization of their structure and performance, and are attractive for applications in flexible organic electronics, energy storage devices, and mechatronics.

Effect of introducing thioether linkages on the molecular organization of chiral twin liquid crystals

2004 ◽  
Vol 31 (11) ◽  
pp. 1495-1502 ◽  
Author(s):  
Isa Nishiyama ◽  
Jun Yamamoto ◽  
John Goodby ◽  
Hiroshi Yokoyama
Keyword(s):  
Liquid Crystals ◽  
Molecular Organization

Molecular organization by head to tail recognition for polar liquid crystals

2003 ◽  
Author(s):  
Atsushi Yoshizawa ◽  
Tsuyoshi Narumi ◽  
Harutada Dewa ◽  
Shinobu Hatai ◽  
Norihisa Araake ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Polar Liquid ◽  
Molecular Organization

scholarly journals Influence of the emollient on emulsions containing lamellar liquid crystals: from molecular organization towards applicative properties

2018 ◽  
Vol 40 (6) ◽  
pp. 565-574 ◽  
Author(s):  
D. Terescenco ◽  
G. Savary ◽  
C. Picard ◽  
F. Clemenceau ◽  
E. Merat ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Molecular Organization ◽  
Lamellar Liquid Crystals
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