NOVEL PHOTO-CROSSLINKABLE BENZALDEHYDE POLYMERS FOR LIQUID CRYSTAL LENSES CREATION
Abstract
This paper presents the results of the study of new photo-crosslinkable benzaldehyde polymers with fragments including long hydrocarbon substituents in the side chain as materials for creating a predetermined distribution of the director pretilt angle in the liquid crystal cell. It is shown that by changing the exposure dose of ultraviolet irradiation after rubbing the polymer layers, any pretilt angle can be obtained in the range 90-0°. The distribution of pretilt angles necessary for the creation of a liquid crystal lens was formed, and the values of the azimuthal anchoring energy of liquid crystals with the alignment layer were increased to 2.5 × 10- 5 J/m2, which made it possible to reduce the number of defects and to improve the optical quality of the liquid crystal lens substantially.
About the Authors
V. S. Bezruchenko
Belarusian State University; Institute of Chemistry of New Materials
Russian Federation
Russian Federation
U. V. Mahilny
Belarusian State University
Russian Federation
Russian Federation
A. I. Stankevich
Belarusian State University
Russian Federation
Russian Federation
Al. An. Muravsky
Institute of Chemistry of New Materials
Russian Federation
Russian Federation
An. Al. Murauski
Institute of Chemistry of New Materials
Russian Federation
Russian Federation
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Review
For citations:
Bezruchenko V.S., Mahilny U.V., Stankevich A.I., Muravsky A.A., Murauski A.A. NOVEL PHOTO-CROSSLINKABLE BENZALDEHYDE POLYMERS FOR LIQUID CRYSTAL LENSES CREATION. Zhurnal Prikladnoii Spektroskopii. 2018;85(4):652-657. (In Russ.)
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