S. Sato, H. Ito, T. Mizunuma, K. Nagai, H. Matsumoto and S. Matsumoto, “Substitute Effect of Fluorine-Containing Polyimides with Hexafluoroisopropylidine Group on Photoalignment of Liquid Crystal Molecule,” Journal of Photopolymer Science and Technology, Vol. 24, No. 6, 2011, pp. 617-623. doi:10.2494/photopolymer.24.617

has been cited by the following article:

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

  AUTHORS: Rasha Ata Alaa, Gurumurthy Hegde, Arun M Isloor, Boodappa Chandrakantha, Shridhar Malladi, M.M. Yusoff, Lachezar Komitov

  KEYWORDS: Liquid Crystals; Fluorine; Parallel; Perpendicular; Irradiation

  JOURNAL NAME: Soft Nanoscience Letters, Vol.3 No.1, December 20, 2012

  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.