Studies of Polymerization of Acrylic Monomers Using Luminescence Probes and Differential Scanning Calorimetry

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dc.contributor.author Serrano Prieto, Berna
dc.contributor.author Levenfeld Laredo, Belén
dc.contributor.author Bravo De Pedro, Julio
dc.contributor.author Baselga Llidó, Juan
dc.date.accessioned 2017-11-27T12:21:21Z
dc.date.available 2017-11-27T12:21:21Z
dc.date.issued 1996-01
dc.identifier.bibliographicCitation Serrano, B., Levenfeld, B., Bravo, J. & Baselga, J. (1996). Studies of Polymerization of Acrylic Monomers Using Luminescence Probes and Differential Scanning Calorimetry. Polymer Engineering & Science, 36 (2), pp. 175-181.
dc.identifier.issn 1548-2634
dc.identifier.uri http://hdl.handle.net/10016/25981
dc.description.abstract A fiber optic system has been designed to couple calorimeter and fluorimeter equipment for in situ monitoring of polymerization reactions by both techniques simultaneously. Two acrylic monomers (cyclohexyl methacrylate, CHM, and 2-ethylhexyl acrylate, EHA) were studied at different temperatures. Pyrene (Py) was employed at a low concentration (≤10⁻⁴ mol/L) as a fluorescence probe. The emission spectrum of pyrene shows a broad band peaking at 390 nm, whose intensity grows with polymerization progress. A correlation with conversion degree could be established by collecting fluorescence intensity through the optical fiber at different polymerization times. For the more flexible polymer formed, poly(ethylhexyl acrylate) (PEHA), Py emission sharply increases only when high conversions are reached and continues increasing for a long time after the limiting conversion is attained. For CHM polymerizations, S-shaped curves are found. Isochronal plots of intensity vs. scaled conversion allow elaboration of master curves for the peak emission. Data at 50°C for CHM cannot be fitted to the master curve, and this is explained in terms of vitrification.
dc.description.sponsorship The authors acknowledge the financial support of this work by the Consejeria de Educación of Comunidad de Madrid (CAM 247 /92) and the Comisión Interministerial de Ciencia y Tecnología (MAT93-0823).
dc.format.extent 7
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Wiley
dc.rights © Wiley, 1996
dc.title Studies of Polymerization of Acrylic Monomers Using Luminescence Probes and Differential Scanning Calorimetry
dc.type article
dc.subject.eciencia Materiales
dc.identifier.doi https://doi.org/10.1002/pen.10399
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. CAM (247/92)
dc.relation.projectID Comunidad de Madrid. MAT1993-0823
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 175
dc.identifier.publicationissue 2
dc.identifier.publicationlastpage 181
dc.identifier.publicationtitle Polymer Engineering and Science
dc.identifier.publicationvolume 36
dc.identifier.uxxi AR/0000010924
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