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Thermal analysis applied to the characterization of degradation in soil of polylactide: I. Calorimetric and viscoelastic analyses

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Thermal analysis applied to the characterization of degradation in soil of polylactide: I. Calorimetric and viscoelastic analyses

dc.contributor.author	Santonja-Blasco, L.
dc.contributor.author	Moriana, Rosana
dc.contributor.author	Badia Valiente, José David
dc.contributor.author	Ribes Greus, A.
dc.date.accessioned	2019-10-21T14:57:51Z
dc.date.available	2019-10-21T14:57:51Z
dc.date.issued	2010
dc.identifier.citation	Santonja-Blasco, L. Moriana, Rosana Badia Valiente, José David Ribes Greus, A. 2010 Thermal analysis applied to the characterization of degradation in soil of polylactide: I. Calorimetric and viscoelastic analyses Polymer Degradation and Stability 95 11 2185 2191
dc.identifier.uri	https://hdl.handle.net/10550/71783
dc.description.abstract	An accelerated soil burial test has been performed on a commercial polylactide (PLA) for simulating non-controlled disposal. Degradation in soil promotes physical and chemical changes in polylactide properties, which can be characterized by Thermal Analysis techniques. Physical changes occurred in polylactide due to the degradation in soil were evaluated by correlating their calorimetric and viscoelastic properties. It is highly remarkable that each calorimetric scan offers specific and enlightening information. Degradation in soil affects the polylactide chains reorganization. A multimodal melting behavior is observed for buried PLA, degradation in soil also promotes the enlarging the lamellar thickness distribution of the population with bigger average size. Morphological changes due to degradation in soil lead to an increase in the free volume of the polylactide chains in the amorphous phase that highly affected the bulk properties. Thermal Analysis techniques provide reliable indicators of the degradation stage of polylactide induced by degradation in soil, as corroborated by molecular weight analysis.
dc.language.iso	eng
dc.relation.ispartof	Polymer Degradation and Stability, 2010, vol. 95, num. 11, p. 2185-2191
dc.subject	Termoplàstics
dc.subject	Materials compostos
dc.title	Thermal analysis applied to the characterization of degradation in soil of polylactide: I. Calorimetric and viscoelastic analyses
dc.type	journal article	es_ES
dc.date.updated	2019-10-21T14:57:51Z
dc.identifier.doi	10.1016/j.polymdegradstab.2010.08.005
dc.identifier.idgrec	134910
dc.rights.accessRights	open access	es_ES