Abstract:
In this work we investigate on the local free volume of a crosslinked polystyrene by studying the steady-state fluorescence anisotropy of three probes with different sizes and shape, embedded in the polymer matrix. The very low values measured for the steady-state fluorescence anisotropy show that the molecules can perform ample movements during their excited-state lifetimes (typically few nanoseconds). Moreover, anisotropy values decrease with the size of the probe. Results were interpreted in terms of Saupe order parameters and the wobbling-in-cone model. © 1999 Elsevier Science S.A.
Registro:
Documento: |
Artículo
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Título: | Fluorescence anisotropy of dyes included in crosslinked polystyrene |
Autor: | Levitus, M.; Bourdelande, J.L.; Marqués, G.; Aramendía, P.F. |
Filiación: | INQUIMAE, Depto. Quim. Inorg., Analitica Y Q., Buenos Aires, Argentina Unitat de Quim. Orgànica, Dept. Quim., Univ. Auton. B., Barcelona, Spain
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Palabras clave: | Anisotropy; Fluorescence; Polystyrene |
Año: | 1999
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Volumen: | 126
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Número: | 1-3
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Página de inicio: | 77
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Página de fin: | 82
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DOI: |
http://dx.doi.org/10.1016/S1010-6030(99)00125-2 |
Título revista: | Journal of Photochemistry and Photobiology A: Chemistry
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Título revista abreviado: | J. Photochem. Photobiol. A Chem.
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ISSN: | 10106030
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CODEN: | JPPCE
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10106030_v126_n1-3_p77_Levitus |
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Citas:
---------- APA ----------
Levitus, M., Bourdelande, J.L., Marqués, G. & Aramendía, P.F.
(1999)
. Fluorescence anisotropy of dyes included in crosslinked polystyrene. Journal of Photochemistry and Photobiology A: Chemistry, 126(1-3), 77-82.
http://dx.doi.org/10.1016/S1010-6030(99)00125-2---------- CHICAGO ----------
Levitus, M., Bourdelande, J.L., Marqués, G., Aramendía, P.F.
"Fluorescence anisotropy of dyes included in crosslinked polystyrene"
. Journal of Photochemistry and Photobiology A: Chemistry 126, no. 1-3
(1999) : 77-82.
http://dx.doi.org/10.1016/S1010-6030(99)00125-2---------- MLA ----------
Levitus, M., Bourdelande, J.L., Marqués, G., Aramendía, P.F.
"Fluorescence anisotropy of dyes included in crosslinked polystyrene"
. Journal of Photochemistry and Photobiology A: Chemistry, vol. 126, no. 1-3, 1999, pp. 77-82.
http://dx.doi.org/10.1016/S1010-6030(99)00125-2---------- VANCOUVER ----------
Levitus, M., Bourdelande, J.L., Marqués, G., Aramendía, P.F. Fluorescence anisotropy of dyes included in crosslinked polystyrene. J. Photochem. Photobiol. A Chem. 1999;126(1-3):77-82.
http://dx.doi.org/10.1016/S1010-6030(99)00125-2