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dc.contributor.authorRiba Ruiz, Jordi-Roger
dc.contributor.authorCantero, Rosa
dc.contributor.authorGarcía Masabet, Violeta del Valle
dc.contributor.authorCailloux, Jonathan
dc.contributor.authorCanals, Trini
dc.contributor.authorMaspoch Rulduà, Mª Lluïsa
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Ciència i Enginyeria dels Materials
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationRiba, J. [et al.]. Multivariate identification of extruded PLA samples from the infrared spectrum. "Journal of materials science", Gener 2020, vol. 55, núm. 3, p. 1269-1279.
dc.descriptionThis is a post-peer-review, pre-copyedit version of an article published in Journal of materials science. The final authenticated version is available online at:
dc.description.abstractPolylactic acid (PLA) is a biodegradable thermoplastic polymer that is presented as a good alternative to petroleum-derived plastics. Some of the major drawbacks of this material are its lack of thermal stability and rapid degradation in large-scale production; thus, special care must be taken during processing. To improve their properties, a reactive extrusion with a multi-epoxy chain extender (SAmfE) has been performed at pilot plant scale. The induced topological modifications produce a mixture of several types of non-uniform structures. Conventional chromatographic (SEC—static light scattering) or spectroscopic (nuclear magnetic resonance) techniques usually fail in characterizing non-uniform structures. A method for the classification of modified PLA samples based on a multivariate treatment of the spectral data obtained by Fourier-transform infrared spectroscopy, jointly with the application of feature extraction and classification algorithms, was applied in this study. The results of this work show the potential of the methodology proposed to improve quality control during manufacturing.
dc.format.extent11 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subjectÀrees temàtiques de la UPC::Enginyeria elèctrica::Dispositius magnètics
dc.subject.lcshPolylactic acid
dc.subject.lcshInfrared spectroscopy
dc.titleMultivariate identification of extruded PLA samples from the infrared spectrum
dc.subject.lemacÀcid polilàctic
dc.subject.lemacEspectroscòpia d'infraroigs
dc.contributor.groupUniversitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group
dc.contributor.groupUniversitat Politècnica de Catalunya. e-PLASCOM - Plàstics i Compòsits Ecològics
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorRiba, J.; Cantero, R.; Garcia, V.; Cailloux, J.; Canals, T.; Maspoch, M.
local.citation.publicationNameJournal of materials science

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