SYNTHESIS AND PHOTO-CROSS-LINKING OF ORIENTED SIDE-CHAIN LIQUID-CRYSTALLINE POLYMERS

Citation
N. Kawatsuki et al., SYNTHESIS AND PHOTO-CROSS-LINKING OF ORIENTED SIDE-CHAIN LIQUID-CRYSTALLINE POLYMERS, Macromolecular rapid communications, 17(10), 1996, pp. 703-712
Citations number
22
Categorie Soggetti
Polymer Sciences
ISSN journal
10221336
Volume
17
Issue
10
Year of publication
1996
Pages
703 - 712
Database
ISI
SICI code
1022-1336(1996)17:10<703:SAPOOS>2.0.ZU;2-D
Abstract
New photo-crosslinkable side-chain liquid-crystalline methacrylate pol ymers comprising m-[4'-(n-cinnamoyloxyalkoxy)biphenyl-4-yloxy]alkyl gr oups (m, n = 2, 6) were synthesized. All polymers exhibit a nematic li quid-crystalline phase depending on the spacer length (5a-5d). Aligned thin films could be obtained using a rubbed polyimide-coated substrat e, and they could be photo-crosslinked without change in the aligned s tructure. The photo-crosslinked film of 5d (m = n = 6) showed a stable alignment up to 300 degrees C.