Photoisomerization and photoorientation of brilliant yellow in the thin film state
https://doi.org/10.29235/1561-8323-2019-63-2-169-174
Abstract
The features of photoisomerization and photoorientation of azo dye brilliant yellow (BY) in the thin film state are studied. The trans-cis-isomerization of the dye molecules is established to proceed upon irradiation of the films based on BY with a full light of an ultra-high pressure lamp DRT-1000 (UV / VID light), this reaction is described by the first-order reaction equation. Under the action of linearly polarized blue light (λ = 457 nm), an optical anisotropy arises in films of BY. Optically anisotropic films of BY with a high dichroic ratio (>10) are shown to be formed using N-methylpyrrolidone and N, N-dimethylformamide as solvents and cellulose acetate as the polymer matrix.
About the Authors
S. N. Lemiashonak
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus.
Belarus
Belarus
Lemiashonak Sviatlana Nikolaevna – Junior researcher.
36, F. Skoryna Str., 220141, Minsk.
Zh. D. Chaplanova
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus.
Belarus
Belarus
Chaplanova Zhanna Davidovna – Ph. D. (Chemistry), Leading researcher.
36, F. Skoryna Str., 220141, Minsk.
V. E. Agabekov
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus.
Belarus
Belarus
Agabekov Vladimir Enokovich – Academician, D. Sc. (Chemistry), Professor, Director.
36, F. Skoryna Str., 220141, Minsk.
N. A. Ivanova
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus.
Russian Federation
Russian Federation
Ivanova Nadezhda Arkadievna – Ph. D. (Chemistry), Head of the Laboratory.
36, F. Skoryna Str., 220141, Minsk.
I. N. Kukhta
Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus.
Russian Federation
Russian Federation
Kukhta Iryna Nikolaevna – Researcher.
36, F. Skoryna Str., 220141, Minsk.
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