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Waterproof material for liquid crystals photoalignment based on azo dyes
Author(s) -
Mikulich Vadzim,
Murauski Anatoli,
Muravsky Alexander,
Agabekov Vladimir,
Bezruchenko Veronika
Publication year - 2014
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.238
Subject(s) - intermolecular force , hydrogen bond , materials science , intramolecular force , inert , photochemistry , chemical engineering , layer (electronics) , thin film , molecule , nanotechnology , chemistry , organic chemistry , engineering
We have designed and synthesized azo dyes with reversible intermolecular bonds, which can be used as materials for liquid crystal photoalignment. The generation of anisotropic structures in azo dye thin film is possible due to the presence of intermolecular hydrogen or coordination (metal–oxygen) bonds. All thin film materials are resistant to air moisture, while photoalignment material with reversible hydrogen bonds is inert to direct water contact. In this paper, we study photoalignment dynamics of obtained materials and discuss possible formation of intramolecular and intermolecular hydrogen bonds within the photoalignment dye layer.