Mechanism of photo-induced liquid crystal alignment on a poly(vinyl cinnamate) thin layer
The mechanism of photo-induced liquid crystal (LC) alignment on a poly(vinyl cinnamate) (PVCi) thin layer was studied. By spectral analysis for the polarized UV spectra of the PVCi thin layer exposed to a polarized UV, dichroism of the photo-dimer and photo-isomer could be determined. To elucidate the mechanism of photo-induced LC alignment, changes in the dichroism of the photo-products and photoaligned LC were investigated with two successive irradiations of polarized UV (250-340 nm) with different polarization directions to the PVCi thin layer. The dichroism of the photoaligned LC was found to follow not the dichroism of the photo-isomer but that of the photo-dimer, which indicates that the anisotropic distribution of the photo-dimer is mainly responsible for uniform LC alignment.
- Publisher
- SOC POLYMER SCIENCE JAPAN
- Issue Date
- 2001-01
- Language
- English
- Article Type
- Article
- Keywords
SIDE-CHAINS; PHOTOALIGNMENT; POLYMETHACRYLATES; FILMS
- Citation
POLYMER JOURNAL, v.33, no.1, pp.9 - 12
- ISSN
- 0032-3896
- Appears in Collection
- CBE-Journal Papers(저널논문)
- Files in This Item
- There are no files associated with this item.
This item is cited by other documents in WoS
| ⊙ Detail Information in WoSⓡ | Click to see |  |
| ⊙ Cited 14 items in WoS | Click to see citing articles in |  |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.