Lecithin Microemulsion Gels: A NMR Study (Articolo in rivista)

Type
Label
  • Lecithin Microemulsion Gels: A NMR Study (Articolo in rivista) (literal)
Anno
  • 1993-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/la00027a013 (literal)
Alternative label
  • D. Capitani, E. Rossi, A.L. Segre, M Giustini, P.L. Luisi (1993)
    Lecithin Microemulsion Gels: A NMR Study
    in Langmuir; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Capitani, E. Rossi, A.L. Segre, M Giustini, P.L. Luisi (literal)
Pagina inizio
  • 685 (literal)
Pagina fine
  • 689 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://dx.doi.org/10.1021/la00027a013 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto Di Metodologie Chimche Institut fur Polymere, ETH Zentrum, Zurich, Switzerland (literal)
Titolo
  • Lecithin Microemulsion Gels: A NMR Study (literal)
Abstract
  • Lecithin gels in cyclohexane have been studied by NMR spectroscopy with a multinuclear approach. A precise correlation exists between previously published1-4 shear viscosity, a macroscopic property, and the line width of the P-31 NMR resonance. At constant water/lecithin ratio (W0 = 8) near the condition of maximal shear viscosity, the P-31 spin-spin relaxation time as a function of lecithin concentration defines the range in which a gel-forming condition is present. Light scattering data i.e. hydrodynamic and gyration radii5 at low lecithin concentration as a function of W0 match extremely well the corresponding P-31 line width curve. During the gel formation process water mobility increases and, contrary to the expectation based on the established model, no evidence of fatty chains entanglement is found. Instead a marked stiffening of the trigliceride moiety and the phosphate is found, while the polar head and the fatty chains do not show loss in mobility. (literal)
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