Effect of the morphology of two phase polymer blends on glass transition temperature

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dc.contributor.author Serrano Prieto, María Bernarda
dc.contributor.author Fernández de Piérola, Inés
dc.contributor.author Bravo de Pedro, Julio
dc.contributor.author Baselga Llidó, Juan
dc.date.accessioned 2017-11-21T11:50:37Z
dc.date.available 2017-11-21T11:50:37Z
dc.date.issued 2003-10-01
dc.identifier.bibliographicCitation Serrano, B., F. Piérola, I., Bravo, J. & Baselga, J. (2003). Effect of the morphology of two phase polymer blends on glass transition temperature. Journal of Materials Processing Technology, 141 (1), pp. 123-126.
dc.identifier.issn 0924-0136
dc.identifier.uri http://hdl.handle.net/10016/25917
dc.description Paper derivado del Póster presentado al Congreso: International Conference on Advanced Materials Processing Technologies (AMPT'01)
dc.description.abstract Blends of poly(cyclohexylmethacrylate), PChMA, with poly(vinylacetate), PVAc, were prepared by casting THF and chloroform solutions. A calorimetric and morphologic study was performed. Differential scanning calorimetry investigations of the blends show two glass transition temperature that give evidence of inmiscibility. For polymer less flexible (PChMA) was observed an enhancement of Tᵍ by 20 °C approximately in blends of PVAc-rich composition. Epifluorescence microscopy, using PChMA labelled by copolymerization pirenyl-methylmethacrylate, Py, shows also phase separation providing imaging of the distribution of PChMA in the different domains and in the matrix. Blends containing 80% w/w PChMA show a bicontinuous primary morphology suggesting a spinodal phase separation mechanism. The 50 and 20% PChMA samples show morphologies composed of PChMA-rich domains in a matrix composed by PVAc mainly. Blends with domain–matrix morphology present a higher Tᵍ than pure homopolymer more rigid (PChMA) due to packing in microphases in matrix of more flexible polymer (PVAc).
dc.format.extent 4
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier, 2003
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Epifluorescence microscopy
dc.subject.other Polymer blends
dc.subject.other Blend morphology
dc.subject.other Glass transition temperature
dc.title Effect of the morphology of two phase polymer blends on glass transition temperature
dc.type article
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.1016/S0924-0136(03)00245-0
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 123
dc.identifier.publicationissue 1
dc.identifier.publicationlastpage 126
dc.identifier.publicationtitle Journal of Materials Processing Technology
dc.identifier.publicationvolume 141
dc.identifier.uxxi AR/0000020512
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