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Influence of ferrite nanoparticle type and content on the crystallization kinetics and electroactive phase nucleation of poly(vinylidene fluoride)

Journal Article


Abstract


  • This work reports on the nucleation of the β-phase of poly(vinylidene fluoride) (PVDF) by incorporating CoFe2O4 and NiFe 2O4 nanoparticles, leading in this way to the preparation of magnetoelectric composites. The fraction of filler nanoparticles needed to produce the same β- to α-phase ratio in crystallized PVDF is 1 order of magnitude lower in the cobalt ferrite nanoparticles. The interaction between nanoparticles and PVDF chains induce the all-trans conformation in PVDF segments, and this structure then propagates in crystal growth. The nucleation kinetics is enhanced by the presence of nanoparticles, as corroborated by the increasing number of spherulites with increasing nanoparticle content and by the variations of the Avrami's exponent. Further, the decrease of the crystalline fraction of PVDF with increasing nanoparticle content indicates that an important fraction of polymer chains are confined in interphases with the filler particle. © 2011 American Chemical Society.

UOW Authors


  •   Gomes da Silva Sencadas, Vitor
  •   Martins, P (external author)
  •   Pitães, Alexandre (external author)
  •   Benelmekki, Maria (external author)
  •   Gomez Ribelles, J L. (external author)
  •   Lanceros-Méndez, Senentxu (external author)

Publication Date


  • 2011

Citation


  • Sencadas, V., Martins, P., Pitães, A., Benelmekki, M., Gomez Ribelles, J. Luis. & Lanceros-Méndez, S. (2011). Influence of ferrite nanoparticle type and content on the crystallization kinetics and electroactive phase nucleation of poly(vinylidene fluoride). Langmuir: the ACS journal of surfaces and colloids, 27 (11), 7241-7249.

Scopus Eid


  • 2-s2.0-79957979285

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3723

Number Of Pages


  • 8

Start Page


  • 7241

End Page


  • 7249

Volume


  • 27

Issue


  • 11

Abstract


  • This work reports on the nucleation of the β-phase of poly(vinylidene fluoride) (PVDF) by incorporating CoFe2O4 and NiFe 2O4 nanoparticles, leading in this way to the preparation of magnetoelectric composites. The fraction of filler nanoparticles needed to produce the same β- to α-phase ratio in crystallized PVDF is 1 order of magnitude lower in the cobalt ferrite nanoparticles. The interaction between nanoparticles and PVDF chains induce the all-trans conformation in PVDF segments, and this structure then propagates in crystal growth. The nucleation kinetics is enhanced by the presence of nanoparticles, as corroborated by the increasing number of spherulites with increasing nanoparticle content and by the variations of the Avrami's exponent. Further, the decrease of the crystalline fraction of PVDF with increasing nanoparticle content indicates that an important fraction of polymer chains are confined in interphases with the filler particle. © 2011 American Chemical Society.

UOW Authors


  •   Gomes da Silva Sencadas, Vitor
  •   Martins, P (external author)
  •   Pitães, Alexandre (external author)
  •   Benelmekki, Maria (external author)
  •   Gomez Ribelles, J L. (external author)
  •   Lanceros-Méndez, Senentxu (external author)

Publication Date


  • 2011

Citation


  • Sencadas, V., Martins, P., Pitães, A., Benelmekki, M., Gomez Ribelles, J. Luis. & Lanceros-Méndez, S. (2011). Influence of ferrite nanoparticle type and content on the crystallization kinetics and electroactive phase nucleation of poly(vinylidene fluoride). Langmuir: the ACS journal of surfaces and colloids, 27 (11), 7241-7249.

Scopus Eid


  • 2-s2.0-79957979285

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3723

Number Of Pages


  • 8

Start Page


  • 7241

End Page


  • 7249

Volume


  • 27

Issue


  • 11