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Surface Characterization of Silanized Glass Fibers by Labeling with Environmental Sensitive Fluorophores

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Polímeros y Compositeses
dc.contributor.authorGonzález Benito, Francisco Javier
dc.contributor.authorCabanelas Valcárcel, Juan Carlos
dc.contributor.authorAznar Jiménez, Antonio
dc.contributor.authorVigil Montaño, Maria Reyes
dc.contributor.authorBravo de Pedro, Julio
dc.contributor.authorBaselga Llidó, Juan
dc.date.accessioned2017-11-09T13:10:25Z
dc.date.available2017-11-09T13:10:25Z
dc.date.issued1996-10-10
dc.description.abstractGlass fibers have been treated with gamma-aminopropyl-triethoxysilane (APES) through different silanizating procedures, which include APES aqueous solutions and APES vapor adsorption. Transmission Fourier transform IR (FTIR) measurements have been performed on the silanized samples to characterize the silanization reaction. Dansyl-sulfonamide conjugates have then been formed by reaction of dansyl chloride in dimethylformamide solution with the amine functionality's immobilized on the glass fiber surface. Steady-state and time-resolved fluorescence measurements have been performed on dansylated samples. A dependence of the fluorescence intensity and the wavelength of the maximum emission on the silanization procedure has been observed. Good fits of the fluorescence decays of dansyl labels are found when biexponential functions are used for deconvolution, whereas the decay of dansylamides in fluid solution is single exponential. A two-state model for the solid solvent relaxation seems to apply for this samples. Several surface structural changes produced by the different silanization methods have been proposed. FTIR results support the conclusions drawn from fluorescence measurements.en
dc.description.sponsorshipFinancial support for this work has been provided by Comision Interministerial de Ciencia y Tecnologia (Cl­ CYT) , under grant MAT93-0823, and by Comunidad Autónoma de Madrid (CAM) , under grant 247 / 92. We thank Dr. I. Pierola for her comments and suggestions.en
dc.format.extent10
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationJ. Gonzalez-Benito, J. C. Cabanelas, J, A. J. Aznar, M. R. Vigil, J. Bravo y J. Baselga (1996). Surface Characterization of Silanized Glass Fibers by Labeling with Environmental Sensitive Fluorophores. Journal of Applied Polymer Science, 62 (2), pp. 375-384.es
dc.identifier.doihttps://dx.doi.org/10.1002/(SICI)1097-4628(19961010)62:2<375::AID-APP12>3.0.CO;2-0
dc.identifier.issn0021-8995
dc.identifier.publicationfirstpage375
dc.identifier.publicationissue2
dc.identifier.publicationlastpage384
dc.identifier.publicationtitleJournal of Applied Polymer Scienceen
dc.identifier.publicationvolume62
dc.identifier.urihttp://hdl.handle.net/10016/25789
dc.identifier.uxxiAR/0000006161
dc.language.isoeng
dc.publisherWileyen
dc.relation.projectIDGobierno de España. MAT93-0823es
dc.relation.projectIDComunidad de Madrid. CAM247/92es
dc.rights© Wiley, 1996
dc.rights.accessRightsopen access
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.titleSurface Characterization of Silanized Glass Fibers by Labeling with Environmental Sensitive Fluorophoresen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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