Liquid-crystal photoalignment by photosensitive fluorinated poly(arylene ether)
- Department of Polymer Science and Technology, Chonbuk National University, Chonbuk 561-756 (Korea, Republic of)
We report a liquid-crystal (LC) photoalignment material with a high photosensitivity based on the fluorinated poly(arylene ether) containing a chalcone unit in the main chain. The fluorinated poly(arylene ether) exhibited defect-free homogeneous alignment of LCs upon irradiation of linearly polarized UV light for 10 s. Spectroscopic analyses revealed that [2+2] cycloaddition between the chalcone moieties generated the surface anisotropy to induce an efficient alignment of LCs.
- OSTI ID:
- 20637043
- Journal Information:
- Applied Physics Letters, Vol. 86, Issue 13; Other Information: DOI: 10.1063/1.1894604; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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