Colloid and Polymer Science

, Volume 288, Issue 5, pp 555–565 | Cite as

Structure and dynamics in poly(L-lactide) copolymer networks

  • Roser Sabater i Serra
  • Apostolos Kyritsis
  • Jorge L. Escobar Ivirico
  • Andreu Andrio Balado
  • Jose Luis Gómez Ribelles
  • Polykarpos Pissis
  • Manuel Salmerón-Sánchez
Original Contribution


Poly(L-lactide) networks (PmLA) hydrophilized with different amounts of 2-hydroxyethyl acrylate (HEA) were investigated by dielectric relaxation spectroscopy, thermally stimulated depolarization currents, and differential scanning calorimetry. The incorporation of HEA units in the PmLA network, with the aim of modulating the water sorption capacity of the system, results in a material with a complex behavior. The system consists of phase-separated microdomains richer in one or the other comonomers that constitute the network. Initially, the addition of smalls amount of HEA units in the network gives rise to a one-phase, two-component system; however, when the amount of HEA in the system increases, a new phase (HEA-rich one) is formed containing some mLA chains that modify the main relaxation mode of these domains and the local dynamics of the system. The structure of the system has been analyzed by comparing the relaxational modes in the PmLA and PHEA homonetworks with those in the copolymer networks.


Hydrogels Macromers P(L-lactide) diol Copolymer networks 



The support of the Spanish Ministry of Science through project No. MAT2009-14440-C02-01 (including the FEDER financial support) is kindly acknowledged. RSS acknowledges Generalitat Valenciana for the support through the grant BEST/2008 (Ordre de 28 de Desembre de 2007).


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Roser Sabater i Serra
    • 1
  • Apostolos Kyritsis
    • 2
  • Jorge L. Escobar Ivirico
    • 1
    • 4
  • Andreu Andrio Balado
    • 3
  • Jose Luis Gómez Ribelles
    • 1
    • 4
    • 5
  • Polykarpos Pissis
    • 2
  • Manuel Salmerón-Sánchez
    • 1
    • 4
    • 5
  1. 1.Centro de Biomateriales e Ingeniería TisularUniversidad Politécnica de ValenciaValenciaSpain
  2. 2.Department of PhysicsNational Technical University of AthensAthensGreece
  3. 3.Departament de FísicaUniversitat Jaume ICastellóSpain
  4. 4.CIBER en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)ValenciaSpain
  5. 5.Centro de Investigación Príncipe FelipeValenciaSpain

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