Segmental dynamics in poly(e-caprolactone)/poly(l-lactide) copolymer networks

Roser Sabater I. Serra, Jorge L.Escobar Ivirico, María Meseguer Dueñas Jose María Meseguer Dueñas, Andreu Andrio Balado, José Luis Gómez Ribelles, Manuel Salmerón Sánchez

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24 Citations (Scopus)

Abstract

Poly(e-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. VVC 2008 Wiley Periodicals, Inc.

Original languageEnglish
Pages (from-to)183-193
Number of pages11
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume47
Issue number2
DOIs
Publication statusPublished - Jan 15 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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    Serra, R. S. I., Ivirico, J. L. E., Jose María Meseguer Dueñas, M. M. D., Balado, A. A., Ribelles, J. L. G., & Sánchez, M. S. (2009). Segmental dynamics in poly(e-caprolactone)/poly(l-lactide) copolymer networks. Journal of Polymer Science, Part B: Polymer Physics, 47(2), 183-193. https://doi.org/10.1002/polb.21629