Elastomeric Polymers. 1. Application of Proton NMR Imaging to the (Articolo in rivista)

Type
Label
  • Elastomeric Polymers. 1. Application of Proton NMR Imaging to the (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Alternative label
  • Gussoni M 1, F Greco 2, M Mapelli 3, A Vezzoli 4,E Ranucci 5, P Ferruti 5, and L Zetta 2 (2002)
    Elastomeric Polymers. 1. Application of Proton NMR Imaging to the
    in Macromolecules (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gussoni M 1, F Greco 2, M Mapelli 3, A Vezzoli 4,E Ranucci 5, P Ferruti 5, and L Zetta 2 (literal)
Pagina inizio
  • 1714 (literal)
Pagina fine
  • 1721 (literal)
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  • Impact factor 2002: 3.75 (literal)
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  • 35 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
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  • 1)Dipartimento di Scienze e Tecnologie Biomediche, Universita` di Milano, Segrate (Mi), Italy; 2)Istituto di Chimica delle Macromolecole, CNR, Milano, Italy; 3)Istituto Oncologico Europeo,Milano, Italy; 4) Ex Istituto di Tecnologie Biomediche Avanzate, CNR, Milano, Italy; 5)Dipartimento di Chimica Organica e Industriale, Universita` di Milano, Milano, Italy (literal)
Titolo
  • Elastomeric Polymers. 1. Application of Proton NMR Imaging to the (literal)
Abstract
  • Proton NMR imaging techniques were used to characterize a silicone rubber, intended mainly for biomedical applications, modified by an “in situ” polymerization. The study was aimed at the investigation of the effect of the polymerization on the silicone properties and of the dispersion of the guest polymer inside the host matrix. Before the onset of the reaction, the silicone, swollen either in water or in toluene, was characterized. Any source of inohomogeneities such as air bubbles or defects was localized and measured, and the geometry was recognized. By comparing the signal intensity from images collected before, during and after the polymerization reaction as well as the T1 and T2 relaxation time values, the guest polymer was found almost homogeneously dispersed in the host matrix, without preferential locations and/or agglomerates. The silicone network did not appear significantly altered by the presence of the guest polymer. The occurrence of the “in situ” polymerization reaction was proved by infrared spectroscopy. (literal)
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