High field NMR analysis of the degree of substitution in carboxymethylcellulose sodium salt (Articolo in rivista)

Type
Label
  • High field NMR analysis of the degree of substitution in carboxymethylcellulose sodium salt (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0144-8617(99)00173-3 (literal)
Alternative label
  • D. Capitani, F. Porro, A.L. Segre (2000)
    High field NMR analysis of the degree of substitution in carboxymethylcellulose sodium salt
    in Carbohydrate polymers
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Capitani, F. Porro, A.L. Segre (literal)
Pagina inizio
  • 283 (literal)
Pagina fine
  • 286 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://dx.doi.org/10.1016/S0144-8617(99)00173-3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 42 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Deipartimento di Ingegneria dei materiali e della produzione, Università di Napoli Federico II, Piazzale Tecchio, Napoli (literal)
Titolo
  • High field NMR analysis of the degree of substitution in carboxymethylcellulose sodium salt (literal)
Abstract
  • An accurate high field (H-1 at 600.13 MHz) 1D and 2D study was performed on an aqueous solution of carboxymethyl cellulose (CMC) sodium salt at 90 degrees C. A combination of 2D experiments was used, H-1-H-1 totally correlated spectroscopy TOCSY, and reverse detected H-1-C-13 hetero-correlated spectroscopy HMQC with gradient selection. This combination allows a full assignment of C-13 NMR spectra. From the gated decoupled C-13 spectrum it is then possible to obtain not only the degree of substitution but also a good measure of the amount of esterification in each chemical position. Conductimetric titration supports the obtained results. (literal)
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