Fluorescence Lifetime Distributions of Labeled Amorphous Polymers in Bulk

e-Archivo Repository

Show simple item record

dc.contributor.author Serrano Prieto, Berna
dc.contributor.author Baselga Llidó, Juan
dc.contributor.author Fernández de Piérola, Inés
dc.date.accessioned 2017-11-17T13:14:41Z
dc.date.available 2017-11-17T13:14:41Z
dc.date.issued 2002-09
dc.identifier.bibliographicCitation Serrano, B., Baselga, J., & Piérola, I. F. (2002). Fluorescence Lifetime Distributions of Labeled Amorphous Polymers in Bulk. Polymer Journal, 34 (12), pp. 905-910.
dc.identifier.issn 0032-3896
dc.identifier.uri http://hdl.handle.net/10016/25882
dc.description.abstract Polystyrene, poly(methylmethacrylate), poly(cyclohexyl methacrylate) and poly(1-butylmethacrylate) were labeled with anthryl groups by copolymerization. Films of labeled polymers as well as blends of them with unlabeled polystyrene samples of different polydispersity and molecular weight, were prepared by solvent casting. The time resolved emission of anthryl groups in those films was measured by Single Photon Counting with front face excitation at the standard 30° incident angle and with much lower incident angles to photoselect chromophores on the polymer-air surface. Fluorescence decays were fitted with bimodal fluorescence lifetime distributions, which were analyzed taking into consideration some polymer characteristics and the compatibility of polymer blends. It was thus concluded that solid-like and liquid-like environments are both in the bulk and in the surface of the film although liquid-like domains are more frequent on the surface than in bulk. Polymer Tᵍ determines the position of the two modes and polydispersity justify the broadness of the modes in the fluorescence lifetime distribution.
dc.description.sponsorship Financial support from DGI (Spain) under grants BQU2000-0251 and MAT2000-0391-P4-02, is gratefully acknowledged.
dc.format.extent 6
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Nature Publishing Group
dc.rights © Nature, 2002
dc.subject.other Fluorescence Lifetime Distribution
dc.subject.other Fluorescence Deca
dc.subject.other Poly(1-butylmethacrylate)
dc.subject.other Poly(methylmethacrylate)
dc.subject.other Poly(cyclohexylmethacrylate)
dc.subject.other Polystyrene
dc.title Fluorescence Lifetime Distributions of Labeled Amorphous Polymers in Bulk
dc.type article
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.identifier.doi https://dx.doi.org/10.1295/polymj.34.905
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. MAT2000-0391-P4-02
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 905
dc.identifier.publicationissue 12
dc.identifier.publicationlastpage 910
dc.identifier.publicationtitle Polymer Journal
dc.identifier.publicationvolume 34
dc.identifier.uxxi AR/0000010944
dc.affiliation.dpto UC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Polímeros y Composites
 Find Full text

Files in this item

*Click on file's image for preview. (Embargoed files's preview is not supported)

This item appears in the following Collection(s)

Show simple item record