Fluorescent labels to study thermal transitions in epoxy/silica composites

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dc.contributor.author Albala, R
dc.contributor.author Olmos Díaz, Dania
dc.contributor.author Aznar Jiménez, Antonio
dc.contributor.author Baselga Llidó, Juan
dc.contributor.author González Benito, Francisco Javier
dc.date.accessioned 2017-11-21T12:14:30Z
dc.date.available 2017-11-21T12:14:30Z
dc.date.issued 2004-09-01
dc.identifier.bibliographicCitation Albalá, R., Olmos, D., Aznar, A. J., Baselga, J. & González-Benito, J. (2004). Fluorescent labels to study thermal transitions in epoxy/silica composites. Journal of Colloid and Interface Science, 277 (1), pp. 71-78.
dc.identifier.issn 0021-9797
dc.identifier.uri http://hdl.handle.net/10016/25918
dc.description.abstract The analysis of the fluorescent response from the dansyl moiety as a function of temperature has been used to estimate the thermal transitions in silica particle/epoxy-based composite materials. Silica particles were surface-coated with 3-aminopropyltriethoxysilane (APTES) and 3-aminopropylmethyldiethoxysilane (APDES). 5-Dimethylamino-1-naphtalenesulfonyl chloride (DNS) and 5-dimethylaminonaphthalene-1-(2-aminoehyl)) sulfonamide (DNS-EDA) were selectively attached to the silanized silica particles and to the epoxy matrix respectively. The fluorescence results, interpreted in terms of the model of interpenetrating polymer networks, suggest that (i) independent of the silane coating, the interfacial region is slightly more rigid and heterogeneous than the epoxy bulk and (ii) the interface generated with APTES seems to be more flexible than that obtained with APDES.
dc.description.sponsorship The authors gratefully acknowledge projects of Epoxil (MAT2000-0391-P4-02) and Fibrodont (MAT2001-0677-P3) for financial support.
dc.format.extent 8
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier, 2004
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Fluorescence
dc.subject.other Thermal transitions
dc.subject.other Composites
dc.subject.other Silane coatings
dc.title Fluorescent labels to study thermal transitions in epoxy/silica composites
dc.type article
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.1016/j.jcis.2004.04.018
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. MAT2000-0391-P4-02
dc.relation.projectID Comunidad de Madrid. MAT2001-0677-P3
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 71
dc.identifier.publicationissue 1
dc.identifier.publicationlastpage 78
dc.identifier.publicationtitle Journal of Colloid and Interface Science
dc.identifier.publicationvolume 277
dc.identifier.uxxi AR/0000002750
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