Mesogenic linear azobenzene polymer-stabilized nematic liquid crystals

Autor:	Arutyun Bagramyan, Olivier Thibault-Maheu, Yue Zhao, Tigran Galstian, André Bessette
Rok vydání:	2011
Předmět:	chemistry.chemical_classification Materials science business.industry Scattering Mesogen General Physics and Astronomy Dielectric Polymer chemistry.chemical_compound Azobenzene chemistry Polymerization Liquid crystal Chemical physics Optoelectronics Molecule business
Zdroj:	Journal of Applied Physics. 109:063505
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.3553854
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::32c5cb408261ca2a8ae3dc202629e3ef https://doi.org/10.1063/1.3553854 Zobrazit plný text záznamu