Synthesis and photoresponsive properties of two liquid crystalline polymers bearing branched azobenzene-containing side chains
Literature Information
Publication Date
2013-07-09
DOI
10.1039/C3PY00757J
Impact Factor
5.582
Authors
Yu Zhu, Xiaogong Wang
View Original
Abstract
We synthesized two photoresponsive liquid crystalline polymers bearing branched azobenzene-containing side-chains. The side-chain liquid crystal polymers (SCLCPs) were designed to contain two and three azobenzene moieties in each monomeric unit, which were attached to the backbones via a linkage of biphenylene and flexible spacers. The SCLCPs were synthesized by radical polymerization of corresponding methacrylate-based monomers. The polymers were characterized by FT-IR, 1H NMR, UV-vis, GPC and small angle X-ray scattering (SAXS). Both polymers formed the smectic-A mesophase in the LC states, whilst the polymer containing three azobenzene-containing branches in each repeat unit showed a high order mesophase in the lower temperature range. The polymers exhibited trans–cis photoisomerization and photoinduced orientation under light irradiation at suitable wavelengths.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
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Recommended Compounds
![(2E)-4-[(1R,2S,8R,19S,21R)-14-Hydroxy-11-isopropenyl-8,23,23-trimethyl-5-(3-methyl-2-buten-1-yl)-16,20-dioxo-3,7,22-trioxaheptacyclo[17.4.1.1~8,12~.0~2,17~.0~2,21~.0~4,15~.0~6,13~]pentacosa-4(15),5,13
,17-tetraen-21-yl]-2-methyl-2-butenoic acid structure](https://static.chemtradehub.com/structs/173/173867-04-4-d2d3.webp "(2E)-4-[(1R,2S,8R,19S,21R)-14-Hydroxy-11-isopropenyl-8,23,23-trimethyl-5-(3-methyl-2-buten-1-yl)-16,20-dioxo-3,7,22-trioxaheptacyclo[17.4.1.1~8,12~.0~2,17~.0~2,21~.0~4,15~.0~6,13~]pentacosa-4(15),5,13
,17-tetraen-21-yl]-2-methyl-2-butenoic acid structure")
Benzyl 3-(aminomethyl)piperidine-1-carboxylate hydrochloride
CAS Number:
1186663-23-9
Molecular Formula:
C14H21ClN2O2
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