✦ LIBER ✦

Photo-induced alignment of a photo-crosslinkable liquid-crystalline copolymer film by linearly polarized UV light

✍ Scribed by Nobuhiro Kawatsuki; Chieko Suehiro; Hiroshi Shindo; Tohei Yamamoto; Hiroshi Ono

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 340 KB
Volume: 19
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.1998.030190408

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✦ Synopsis

The anisotropic photoreaction of a liquid-crystalline (LC) copolymer comprising one co-monomer being anisotropically photo-crosslinkable by linearly polarized (LP)-UV light and the other being insensitive to UV-irradiation is presented. Polarized UVand IR studies suggested a photo-induced alignment of the mesogenic side groups during the LP-UV photoreaction 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.

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