Sonseca Olalla, A.; Peponi, L.; Sahuquillo, O.; Kenny, J.; Giménez Torres, E. (2012). Electrospinning of biodegradable polylactide/hydroxyapatite nanofibers: Study on the morphology, crystallinity structure and thermal stability. Polymer Degradation and Stability. 97(10):2052-2059. https://doi.org/10.1016/j.polymdegradstab.2012.05.009
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/93304
Título:
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Electrospinning of biodegradable polylactide/hydroxyapatite nanofibers: Study on the morphology, crystallinity structure and thermal stability
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Autor:
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Sonseca Olalla, Agueda
Peponi, Laura
Sahuquillo, Oscar
Kenny, J.M.
Giménez Torres, Enrique
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Entidad UPV:
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Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials
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Fecha difusión:
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Resumen:
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[EN] Aligned mats of poly(lactic acid) (PLA) nanofibers containing nanosized hydroxyapatite filler have been obtained via electrospinning onto a rotating mandrel. Their structure and morphology have been characterized as ...[+]
[EN] Aligned mats of poly(lactic acid) (PLA) nanofibers containing nanosized hydroxyapatite filler have been obtained via electrospinning onto a rotating mandrel. Their structure and morphology have been characterized as a function of the production parameters, by SEM, DSC, DMA and WAXS, with emphasis in the effects of the take-up velocity. SEM, DSC and X-ray diffraction studies confirmed a reduction in fiber diameter, an increase of fiber orientation and a highly crystalline structure of the mats collected at higher speed due to the stretching produced during the process. Double melting behavior was observed, suggesting the presence of two crystalline forms. Moreover the higher storage modulus (E¿ modulus), and glass transition temperatures of the higher speed collected mats were correlated with an enhancement in the thermal stability and nanofiller distribution. © 2012 Elsevier Ltd. All rights reserved.
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Palabras clave:
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Crystallinity
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Electrospinning
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Hydroxyapatite
,
Morphology
,
Thermal stability
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Crystalline form
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Crystalline structure
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Crystallinities
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Double melting
,
In-fiber
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Nano-sized hydroxyapatite
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Nanofiller
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Polylactide
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Polylactic acids
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Production parameters
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Rotating mandrel
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Structure and morphology
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X-ray diffraction studies
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Lactic acid
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Nanofibers
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X ray diffraction
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Thermodynamic stability
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Derechos de uso:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Fuente:
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Polymer Degradation and Stability. (issn:
0141-3910
)
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DOI:
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10.1016/j.polymdegradstab.2012.05.009
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Editorial:
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Elsevier
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Versión del editor:
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http://doi.org/10.1016/j.polymdegradstab.2012.05.009
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Código del Proyecto:
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info:eu-repo/grantAgreement/MECD//AP2009-2482/ES/AP2009-2482/
info:eu-repo/grantAgreement/MICINN//MAT2010-21494-C03-01/ES/DESARROLLO DE ESPUMAS Y SISTEMAS RIGIDOS CON MEMORIA DE FORMA BASADOS EN NANOCOMPUESTOS BIODEGRADABLES NANONOESTRUCTURADOS/
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Agradecimientos:
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This project has been supported by Project MAT2010/21494-C03
of Spanish Ministry for Science and Innovation (MICINN). AS
acknowledges the support of FPU grant from MED (MED-FPU;
AP2009-2482).
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Tipo:
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Artículo
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