Epoxy resin/TiO2nanocomposites prepared by both reactivesuspension method, based on in situ synthesis, and conventional mechanical mixing are analysed by solid-state nuclear magnetic resonance and transmission electron microscopy in order to have a deeper insight into the nature of interactions at the polymer/particle interface and their effect on the nanoparticles dispersion. Specifically, solid-state nuclear magnetic resonance experiments showed that the nanoparticles, synthesized by reactive suspension method, can efficiently link the matrix by hydrogen bonds forming a hybrid organic-inorganic 3D network. Such evidences strongly supports our previously reported theory, in which the nanoparticles in situ synthesized by reactive suspension method act not only as rigid filler, but also as actual cross-linking points, dramatically improving the mechanical properties of the polymeric matrix. Moreover, as revealed by transmission electron microscopy investigations, the formation of such hydrogen bonds significantly affect also the nanoparticles distribution, thanks to a stabilizing effect on the nanoparticles’ surface that prevents their aggregation and improves their dispersion.

Spinella, A., Bondioli, F., Nasillo, G., Renda, V., Caponetti, E., Messori, M., et al. (2017). Organic-inorganic nanocomposites prepared by reactive suspension method: investigation on filler/matrix interactions and their effect on the nanoparticles dispersion. COLLOID AND POLYMER SCIENCE, 295(4), 695-701 [10.1007/s00396-017-4036-6].

Organic-inorganic nanocomposites prepared by reactive suspension method: investigation on filler/matrix interactions and their effect on the nanoparticles dispersion

SPINELLA, Alberto;NASILLO, Giorgio;RENDA, VINCENZO;CAPONETTI, Eugenio;
2017

Abstract

Epoxy resin/TiO2nanocomposites prepared by both reactivesuspension method, based on in situ synthesis, and conventional mechanical mixing are analysed by solid-state nuclear magnetic resonance and transmission electron microscopy in order to have a deeper insight into the nature of interactions at the polymer/particle interface and their effect on the nanoparticles dispersion. Specifically, solid-state nuclear magnetic resonance experiments showed that the nanoparticles, synthesized by reactive suspension method, can efficiently link the matrix by hydrogen bonds forming a hybrid organic-inorganic 3D network. Such evidences strongly supports our previously reported theory, in which the nanoparticles in situ synthesized by reactive suspension method act not only as rigid filler, but also as actual cross-linking points, dramatically improving the mechanical properties of the polymeric matrix. Moreover, as revealed by transmission electron microscopy investigations, the formation of such hydrogen bonds significantly affect also the nanoparticles distribution, thanks to a stabilizing effect on the nanoparticles’ surface that prevents their aggregation and improves their dispersion.
link.springer.de/link/service/journals/00396/index.htm
Spinella, A., Bondioli, F., Nasillo, G., Renda, V., Caponetti, E., Messori, M., et al. (2017). Organic-inorganic nanocomposites prepared by reactive suspension method: investigation on filler/matrix interactions and their effect on the nanoparticles dispersion. COLLOID AND POLYMER SCIENCE, 295(4), 695-701 [10.1007/s00396-017-4036-6].
File in questo prodotto:
File Dimensione Formato  
Articolo 24 Organic inorganic nanocomposites prepared.pdf

accesso aperto

Dimensione 968 kB
Formato Adobe PDF
968 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/244775
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 8
social impact