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Fabrication of poly(lactic acid)-poly(ethylene oxide) electrospun membranes with controlled micro to nanofiber sizes

Journal Article


Abstract


  • Biodegradable poly(L-lactide acid) (PLLA) nanofiber membranes were prepared by electrospinning of PLLA and poly(ethylene oxide) (PEO). The selective removal of PEO by water allows to obtain smaller fiber diameters and to increase the porosity of the membranes in comparison to PLLA membranes obtained under the same electrospinning conditions. After removal of PEO membranes with fiber sizes of 260 nm and average porosity close to 80% are obtained. Thermal and infrared results confirm the poor miscibility of PLLA and PEO, with the PEO randomly distributed along the PLLA fibers. On the other, PLLA and PEO mixing strongly affect their respective degradation temperatures. The influence of the PEO in the electrospinning process is discussed and the results are correlated to the evolution of the PLLA fiber diameter. Copyright © 2012 American Scientific Publishers.

UOW Authors


  •   Ribeiro, Clarisse (external author)
  •   Gomes da Silva Sencadas, Vitor
  •   Caparrós, Cristina (external author)
  •   Gomez Ribelles, J L. (external author)
  •   Lanceros-Méndez, Senentxu (external author)

Publication Date


  • 2012

Citation


  • Ribeiro, C., Sencadas, V., Caparrós, C., Gomez Ribelles, J. L. & Lanceros-Méndez, S. (2012). Fabrication of poly(lactic acid)-poly(ethylene oxide) electrospun membranes with controlled micro to nanofiber sizes. Journal of Nanoscience and Nanotechnology, 12 (8), 6746-6753.

Scopus Eid


  • 2-s2.0-84865133355

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3709

Number Of Pages


  • 7

Start Page


  • 6746

End Page


  • 6753

Volume


  • 12

Issue


  • 8

Abstract


  • Biodegradable poly(L-lactide acid) (PLLA) nanofiber membranes were prepared by electrospinning of PLLA and poly(ethylene oxide) (PEO). The selective removal of PEO by water allows to obtain smaller fiber diameters and to increase the porosity of the membranes in comparison to PLLA membranes obtained under the same electrospinning conditions. After removal of PEO membranes with fiber sizes of 260 nm and average porosity close to 80% are obtained. Thermal and infrared results confirm the poor miscibility of PLLA and PEO, with the PEO randomly distributed along the PLLA fibers. On the other, PLLA and PEO mixing strongly affect their respective degradation temperatures. The influence of the PEO in the electrospinning process is discussed and the results are correlated to the evolution of the PLLA fiber diameter. Copyright © 2012 American Scientific Publishers.

UOW Authors


  •   Ribeiro, Clarisse (external author)
  •   Gomes da Silva Sencadas, Vitor
  •   Caparrós, Cristina (external author)
  •   Gomez Ribelles, J L. (external author)
  •   Lanceros-Méndez, Senentxu (external author)

Publication Date


  • 2012

Citation


  • Ribeiro, C., Sencadas, V., Caparrós, C., Gomez Ribelles, J. L. & Lanceros-Méndez, S. (2012). Fabrication of poly(lactic acid)-poly(ethylene oxide) electrospun membranes with controlled micro to nanofiber sizes. Journal of Nanoscience and Nanotechnology, 12 (8), 6746-6753.

Scopus Eid


  • 2-s2.0-84865133355

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3709

Number Of Pages


  • 7

Start Page


  • 6746

End Page


  • 6753

Volume


  • 12

Issue


  • 8