Fluorescence anisotropy of dyes included in crosslinked polystyrene

Marcia Levitus; José Luis Bourdelande; Gerard Marqués; Pedro F. Aramendía

doi:10.1016/S1010-6030(99)00125-2

Fluorescence anisotropy of dyes included in crosslinked polystyrene

Marcia Levitus, José Luis Bourdelande, Gerard Marqués, Pedro F. Aramendía

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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.

Original language	English (US)
Pages (from-to)	77-82
Number of pages	6
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	126
Issue number	1-3
DOIs	https://doi.org/10.1016/S1010-6030(99)00125-2
State	Published - Sep 1999
Externally published	Yes

Keywords

Anisotropy
Fluorescence
Polystyrene

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Physics and Astronomy

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10.1016/S1010-6030(99)00125-2

Cite this

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title = "Fluorescence anisotropy of dyes included in crosslinked polystyrene",

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.",

keywords = "Anisotropy, Fluorescence, Polystyrene",

author = "Marcia Levitus and Bourdelande, {Jos{\'e} Luis} and Gerard Marqu{\'e}s and Aramend{\'i}a, {Pedro F.}",

note = "Funding Information: ML is a graduate fellow from UBA. PFA is a member of Carrera del Investigador Cient{\'ı}fico from CONICET (Research staff from Argentina National Research Council). The work was performed under financial support from UBA (EX-25) and Volkswagen Foundation (Germany).",

year = "1999",

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doi = "10.1016/S1010-6030(99)00125-2",

language = "English (US)",

volume = "126",

pages = "77--82",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

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number = "1-3",

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TY - JOUR

T1 - Fluorescence anisotropy of dyes included in crosslinked polystyrene

AU - Levitus, Marcia

AU - Bourdelande, José Luis

AU - Marqués, Gerard

AU - Aramendía, Pedro F.

N1 - Funding Information: ML is a graduate fellow from UBA. PFA is a member of Carrera del Investigador Cientı́fico from CONICET (Research staff from Argentina National Research Council). The work was performed under financial support from UBA (EX-25) and Volkswagen Foundation (Germany).

PY - 1999/9

Y1 - 1999/9

N2 - 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.

AB - 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.

KW - Anisotropy

KW - Fluorescence

KW - Polystyrene

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DO - 10.1016/S1010-6030(99)00125-2

M3 - Article

AN - SCOPUS:0006591058

SN - 1010-6030

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EP - 82

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 1-3

ER -

Fluorescence anisotropy of dyes included in crosslinked polystyrene

Abstract

Keywords

ASJC Scopus subject areas

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