Photoalignment of pentyl-cyanobiphenyl on the fluorinated polyvinyl-cinnamates induced by UV and visible light

Authors
Andrienko, D Dyadyusha, A Kurioz, Y Reznikov, Y Barbet, F Bormann, D Warenghem, M Khelifa, B
Citation
D. Andrienko et al., Photoalignment of pentyl-cyanobiphenyl on the fluorinated polyvinyl-cinnamates induced by UV and visible light, MOL CRYST A, 329, 1999, pp. 831-838
Citations number
26
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
ISSN journal
1058725X → ACNP
Volume
329
Year of publication
1999
Part
2
Pages
831 - 838
Database
ISI
SICI code
1058-725X(1999)329:<831:POPOTF>2.0.ZU;2-I
Abstract
We present the measurements of anchoring energy, pretilt angle and sliding ability of 5CB on fluoro-substituted poly(vinylcinnamates) (PVCN-Fs). It is found that the position of the fluoro-fragments with respect to the benzen e ring is crucial for the anchoring properties of PVCN-Fs. We report also t he photoalignment effect under the irradiation of PVCN-Fs layer with visibl e light and we evidenced isomerization of para-PVCN-F by Raman Spectroscopy .