Reference : Synthesis and polarized light-induced birefringence of new polymethacrylates containi...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/12789
Synthesis and polarized light-induced birefringence of new polymethacrylates containing carbazolyl and azobenzene pendant groups
English
Maertens, Christophe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Dubois, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Blanche, Pierre-Alexandre [University of Liège (ULg) > Centre Spatial de Liège > > >]
Lemaire, P. C. [University of Liège (ULg) > Centre Spatial de Liège > > >]
1-Jan-2000
Journal of Polymer Science. Part B, Polymer Physics
John Wiley & Sons
38
1
205-213
Yes (verified by ORBi)
International
0887-6266
Hoboken
[en] nonlinear optics
[en] Low Tg copolymers of [11(N-carbazolyl)undecylmethacrylate] and [2,5-dimethylphenyl-[(4-nitrophenyl)azo]-phenoxyalkylmethacrylate] have been synthesized and the polarized light-induced birefringence of thick films (70 m) has been investigated at a constant deducted temperature relative to Tg (T - Tg = 10 °C). The optical properties of these copolymers have been studied in relation to the azo-dye content and the length of the alkyl spacer between the azo-dye and the methacrylic backbone. They have been compared with the dispersion of (4-methoxy-2,5-dimethylphenyl)-(4-nitrophenyl)diazene (DMNPAA) within a poly[11(N-carbazolyl)undecyl-methacrylate] and a poly[N-vinylcarbazole] (PVK) matrix. The experimental curves have been fitted by biexponentials, so emphasizing the effects of the copolymer structure on the kinetics of the writing process. The photoinduced orientation is more than three orders of magnitude higher in a grafted material compared to the dispersion version. The azo-dye concentration also has an important role in both the amplitude and the dynamics of the photo-orientation.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/12789
10.1002/(SICI)1099-0488(20000101)38:1<205::AID-POLB23>3.0.CO;2-H
http://www3.interscience.wiley.com/cgi-bin/fulltext/67500748/PDFSTART

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Maertens_C_2000_J pol sci part B_38_1_205.pdfNo commentaryAuthor postprint206.85 kBRequest copy
Restricted access
Maertens C 2000 JPS Polym Phys 205.pdfPublisher postprint164.11 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.