Mesogenic linear azobenzene polymer-stabilized nematic liquid crystals

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3553854· OSTI ID:21538166

Bagramyan, Arutyun; Thibault-Maheu, Olivier; Galstian, Tigran ^[1]; Bessette, Andre; Zhao, Yue ^[2]

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1. Center for Optics, Photonics and Laser, Department of Physics, Engineering Physics and Optics, Laval University, Pav. d'Optique-Photonique, 2375 Rue de la Terrasse, Quebec G1V 0A6 (Canada)
2. Departement de Chimie, Universite de Sherbrooke, Sherbrooke, Quebec J1K 2R1 (Canada)

We describe the detailed study of a polymer stabilized liquid crystal compound, which was created by using a reactive (monofunctional) azobenzene mesogenic guest and a nematic liquid crystal host. The resonant interaction of light with the azobenzene segment of the guest and the mesogenic nature of the latter enable the optical alignment of host molecules and the permanent fixing of that orientation by means of UV polymerization of the guest. We use dynamic spectral, polarimetric, and scattering techniques to study the orientational ordering and interaction of the guest-host system. We show that the uniform UV polymerization of this compound results in a low scattering material system with dielectric and elastic properties that are relatively close to those of the host, while still providing the capacity for optical configuration of its morphology.

• OSTI ID: 21538166
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 6 Vol. 109; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CAPACITY
CHEMICAL REACTIONS
CONFIGURATION
CRYSTALS
DENSITY
DIELECTRIC MATERIALS
ELASTICITY
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FLUIDS
INTERACTIONS
LEPTONS
LIQUID CRYSTALS
LIQUIDS
MASS SPECTROSCOPY
MATERIALS
MECHANICAL PROPERTIES
MOLECULES
ORIENTATION
PHYSICAL PROPERTIES
POLYMERIZATION
POLYMERS
RADIATIONS
SCATTERING
SPECTROSCOPY
SURFACES
TRANSMISSION
ULTRAVIOLET RADIATION
VISIBLE RADIATION