Segmental dynamics in poly(ε-caprolactone)/poly(L-lactide) copolymer networks
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Scholar |
Otros documentos de la autoría: Sabater Serra, Roser; Escobar Ivirico, Jorge L.; Meseguer Dueñas, José María; Andrio, Andreu; Gomez Ribelles, Jose Luis; Salmerón Sánchez, Manuel
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http://dx.doi.org/10.1002/polb.21629 |
Metadatos
Título
Segmental dynamics in poly(ε-caprolactone)/poly(L-lactide) copolymer networksAutoría
Fecha de publicación
2009Editor
WileyISSN
0887-6266Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/polb.21629/fullVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both ... [+]
Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both macromonomers were copolymerized to get copolymer networks with different compositions (namely, PCL/PLA: 0/100, 70/30, 50/50, 30/70, 100/0). Dielectric and calorimetric experiments allow one to conclude the microphase separation of the system: one phase made of pure PCL domains while the second one consists of caprolactone units, which somehow plasticize PLA and moves its main relaxation (glass transition) to lower temperatures. The effect of crosslinking PLA on the dynamics of the system was further investigated by comparing with the dynamics for linear PLA. [-]
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Journal of Polymer Science Part B: Polymer Physics, 47, 2, p. 183–193Derechos de acceso
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