Article (Scientific journals)
Intramolecular excited-state processes of a halato-telechelic polymer, evaluated by global compartmental analysis of the fluorescence decay surface with the use of model coumpounds
van Stam, Jan; De Schryver, Frans C; Boens, Noël et al.
1997In Macromolecules, 30 (19), p. 5582-5590
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Keywords :
halatotelechelic polymer
Abstract :
[en] The excited-state processes of the halato-telechelic polymer bis[(N,N-dimethyl-N-[3-(1-pyrenyl)propyl]ammonio)trifluoromethanesulfonate]-end-capped poly(tetrahydrofuran) at low concentrations are investigated by time-resolved fluorescence. The photophysical processes can be described by an intramolecular three-state excited-state model. Such a system is not identifiable in the absence of a priori information. It is possible to perform a global compartmental analysis of the fluorescence decay surface using the scanning technique, based on model compound data previously obtained [Hermans et al., J. Phys. Chem. 1994, 98, 13583 and Hermans et al. Macromolecules 1995, 28, 3380]. The value boundaries on the rate constant for ring closure of the chain ends show that this process is close to diffusion-controlled.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Author, co-author :
van Stam, Jan;  Katholieke Universiteit Leuven (KUL) > Department of Chemistry
De Schryver, Frans C;  Katholieke Universiteit Leuven (KUL) > Department of Chemistry
Boens, Noël;  Katholieke Universiteit Leuven (KUL) > Department of Chemistry
Hermans, Bart;  Katholieke Universiteit Leuven (KUL) > Department of Chemistry
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Trossaert, Geert;  University of Ghent
Goethals, Erik;  University of Ghent > Department of Organic Chemistry
Schacht, Etienne;  University of Ghent
Language :
English
Title :
Intramolecular excited-state processes of a halato-telechelic polymer, evaluated by global compartmental analysis of the fluorescence decay surface with the use of model coumpounds
Publication date :
22 September 1997
Journal title :
Macromolecules
ISSN :
0024-9297
eISSN :
1520-5835
Publisher :
Amer Chemical Soc, Washington, United States - Washington
Volume :
30
Issue :
19
Pages :
5582-5590
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
The Belgian "Fonds voor Geneeskundig Wetenschappelijk Onderzoek" (FGWO)
The Belgian "Fonds Fonds voor Kollektief Fundamenteel Onderzoek"
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
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