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Sheets of branched poly(lactic acid) obtained by one-step reactive extrusion-calendering process: physical aging and fracture behavior

Autor
Cailloux, J.; Santana, O.; E Franco-Urquiza; Bou, J. J.; Carrasco, F.; Maspoch, M.
Tipus d'activitat
Article en revista
Revista
Journal of materials science
Data de publicació
2014-06-01
Volum
49
Número
11
Pàgina inicial
4093
Pàgina final
4107
DOI
https://doi.org/10.1007/s10853-014-8101-y Obrir en finestra nova
Projecte finançador
Modificación del PLA mediante extrusión reactiva para la mejora del procesado, del comportamiento a fractura y de la preparación de nanocompuestos biodegradables
Repositori
http://hdl.handle.net/2117/22994 Obrir en finestra nova
URL
http://link.springer.com/article/10.1007%2Fs10853-014-8101-y Obrir en finestra nova
Resum
The architectural modifications of a linear poly(D,L-Lactide) acid (PD,L-LA) commercial grade were induced by a one-step reactive extrusion-calendering process using a styrene-glycidyl acrylate copolymer as reactive agent. The melt degradation was counteracted by chain extension and branching reactions, leading to a stabilization of the melt properties and an increase in the molecular weight. For such modified samples [poly(lactic acid) (PLA)-reactive extrusion (REX)], the rate of physical aging...
Citació
Cailloux, J. [et al.]. Sheets of branched poly(lactic acid) obtained by one-step reactive extrusion-calendering process: physical aging and fracture behavior. "Journal of materials science", 01 Juny 2014, vol. 49, núm. 11, p. 4093-4107.
Paraules clau
CRYSTALLIZATION, Digital image correlation, ENTANGLEMENT, ENTHALPY RELAXATION, ESSENTIAL WORK, EWF METHOD, Enthalpy relaxation, Essential work of fracture, FILMS, MECHANICAL-PROPERTIES, MOLECULAR-WEIGHT, POLY(L-LACTIDE), POLYMERS, Physical aging, Poly(lactic acid), Reactive extrusion
Grup de recerca
Càtedra A3 - Càtedra A3
POLYCOM - Polimers i compòsits: tecnologia
e-PLASCOM - Plàstics i Compòsits Ecològics

Participants