Spectral photosensitization of optical anisotropy in poly(vinyl cinnamate) solid films

We observed possibilities and properties of sensitized photo induced optical anisotropy formation in amorphous poly (vynyl-cinnamate) films (PVCi) and its derivant poly (vynyl-4-methoxy-cinnamate) (PVMCi) under polarized light, including the one which is not absorbed by the supermolecules of the polymeric material. The effect of the induced optical anisotropy involves transferring the energy of electronic excitation from the donor molecules (Michler's ketone or 2-benzoyl-methylene-3, methyl-β-naphthosol) to the scavenger's molecules - PVCi or PVMCi) and photo-topochemical ring formation of cinnamate units in polymeric supermolecules. The discovered photo-induced anisotropy in solid PVCi and PVMCi films provides sensitized photo orientation of low-molecular thermotropic liquid crystals. © Published under licence by IOP Publishing Ltd.

Authors
Kozenkov V.M.1 , Spakhov A.A.1 , Belyaev V.V. 1, 2 , Chausov D.N.1 , Chausova O.V.3 , Chigrinov V.G.4
Conference proceedings
Journal of Physics: Conference Series
Publisher
Institute of Physics Publishing
Number of issue
1
Language
English
Status
Published
DOI
10.1088/1742-6596/867/1/012039
Number
012039
Volume
867
Year
2017
Organizations
  • 1 Moscow Region State University, 10a Radio st., Moscow, 105005, Russian Federation
  • 2 Peoples' Friendship University of Russia, RUDN University, 6 Miklukho-Maklaya st., Moscow, 117198, Russian Federation
  • 3 University of Technology, 42 Gagarina st., Korolev, 141070, Russian Federation
  • 4 Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
Keywords
double refraction; photo-induced optical anisotropy; poly (vynyl-cinnamate) photosensitization
Date of creation
19.10.2018
Date of change
10.06.2021
Short link
https://repository.rudn.ru/en/records/article/record/5424/
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