[en] A copolymer of [11-(N-carbazolyl)undecyl methacrylate] and ethyl (E)-2-cyano-3[5-(5-(4-methacryloyloxy)piperidino-2-thienylcarbonyl)-2-thienyl]-2-propenoate has been prepared. The photoconductivity and the electrooptic properties of a hot-pressed thin film of this copolymer have been measured and compared with the properties of the dispersion of ethyl (E)-2-cyano-3[5-(5-piperidino-2-thienylcarbonyl)-2-thienyl]-2-propenoate within a poly[11-(N-carbazolyl)undecyl methacrylate] matrix. The electrooptic coefficient has been measured by both interferometric and polarimetric techniques. The interferometric technique was not appropriated because the strong electric field applied to the electrodes changes the film thickness of these low Tg materials. A value of up to 5 pm/V for the figure of merit n3(r13 − r33) has been reported for the dispersed material, which is 10 times higher than the corresponding grafted material, and a linear relationship between the poling intensity and the electrooptic coefficient has been observed for the two materials.
Centre/Unité de recherche :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chimie Science des matériaux & ingénierie
Auteur, co-auteur :
Maertens, Christophe; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Dubois, Philippe; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Blanche, P.-A.; Université de Liège - ULiège > Centre Spatial de Liège (CSL)
Lemaire, Philippe ; Université de Liège - ULiège > Centre Spatial de Liège (CSL)
Langue du document :
Anglais
Titre :
Synthesis and electrooptic properties of a new chromophore dispersed or grafted in a carbazolyl methacrylate matrix
Date de publication/diffusion :
avril 1998
Titre du périodique :
Chemistry of Materials
ISSN :
0897-4756
eISSN :
1520-5002
Maison d'édition :
American Chemical Society (ACS), Washington, Etats-Unis - District de Columbia
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique F.R.S.-FNRS - Fonds de la Recherche Scientifique FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture
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