PHOTOINDUCED ALIGNMENT OF A PHOTO-CROSS-LINKABLE LIQUID-CRYSTALLINE COPOLYMER FILM BY LINEARLY POLARIZED UV-LIGHT

Authors
KAWATSUKI N SUEHIRO C SHINDO H YAMAMOTO T ONO H
Citation
N. Kawatsuki et al., PHOTOINDUCED ALIGNMENT OF A PHOTO-CROSS-LINKABLE LIQUID-CRYSTALLINE COPOLYMER FILM BY LINEARLY POLARIZED UV-LIGHT, Macromolecular rapid communications, 19(4), 1998, pp. 201-204
Citations number
18
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
19
Issue
4
Year of publication
1998
Pages
201 - 204
Database
ISI
SICI code
1022-1336(1998)19:4<201:PAOAPL>2.0.ZU;2-H
Abstract
The anisotropic photoreaction of a liquid-crystalline (LC) copolymer c omprising one co-monomer being anisotropically photo-crosslinkable by linearly polarized (LP)-UV light and the other being insensitive to UV -irradiation is presented. Polarized UV and IR studies suggested a pho to-induced alignment of the mesogenic side groups during the LP-UV pho toreaction at the LC temperature range of the copolymer. The direction of the aligned mesogenic groups is parallel to the electric vector of the incident LP-UV light and the induced birefringence is 0.07.