Nano-Engineering of New Photoreactive Materials Having Fluorine Units: Synthesis and Photoalignment of Liquid Crystals

M. M., Yusoff and Rasha, Ata Alaa and Hegde, Gurumurthy and Arun, M Isloor and Boodappa, Chandrakantha and Shridhar, Mallad and Lachezar, Komitov (2013) Nano-Engineering of New Photoreactive Materials Having Fluorine Units: Synthesis and Photoalignment of Liquid Crystals. Soft Nanoscience Letters, 3 (1). pp. 1-6. ISSN 2160-0600 (print), 2160-0740 (online). (Published)

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Abstract

In order to investigate the photoalignment mechanism of nematic liquid crystals on an oxadiazoles, new 1,3,4-oxadiazole having fluorine atoms as terminal, as well as sideways was synthesized. Linearly polarized UV light shined in these nano-layered films causes the preferential direction of the liquid crystal molecules either perpendicular (in the case of terminal fluoro substitution) or parallel (in the case of sideways fluorine substitution) to the polarized direction. A powerful indication about the relationship between molecular structure and alignment properties where just by changing fluorine atom can change the entire alignment direction is proposed. Such information is indispensable for the design and synthesis of photoalignment materials for liquid crystal displays of high quality.

Item Type:	Article
Uncontrolled Keywords:	Liquid Crystals; Fluorine; Parallel; Perpendicular; Irradiation
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Faculty/Division:	Faculty of Industrial Sciences And Technology
Depositing User:	Prof. Dr. Mashitah Mohd Yusoff
Date Deposited:	31 Dec 2013 06:50
Last Modified:	27 Jul 2018 03:24
URI:	http://umpir.ump.edu.my/id/eprint/4696
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