Sequence distribution of poly(ether-sulfone) poly(ether-ketone) copolymers by mass-spectrometry and C-13 NMR (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Sequence distribution of poly(ether-sulfone) poly(ether-ketone) copolymers by mass-spectrometry and C-13 NMR (Articolo in rivista) (literal)

Anno

• 1995-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1002/macp.1995.021960206 (literal)

Alternative label

• Montaudo G, Montaudo MS, Puglisi C, Samperi F, (1995)
  Sequence distribution of poly(ether-sulfone) poly(ether-ketone) copolymers by mass-spectrometry and C-13 NMR
  in Macromolecular chemistry and physics (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Montaudo G, Montaudo MS, Puglisi C, Samperi F, (literal)

Pagina inizio

• 499 (literal)

Pagina fine

• 511 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• la rivista MACROMOLECULAR CHEMISTRY AND PHYSICS ha un impact factor di 2.570 (fonte JCR 2009) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 196 (literal)

Rivista

• Macromolecular chemistry and physics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 12 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 2 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• polimeri catania (literal)

Titolo

• Sequence distribution of poly(ether-sulfone) poly(ether-ketone) copolymers by mass-spectrometry and C-13 NMR (literal)

Abstract

• The sequence distributions of four poly(ether-sulfone)/poly(ether-ketone) (PES/PEK) copolymer samples were determined by means of fast atom bombardment mass spectrometry (FAR-MS) and by C-13 NMR spectroscopy. The controlled partial degradation of the copolymer chains to produce oligomers suitable of FAB-MS analysis was performed with sodium methoxide in dimethyl sulfoxide solution at 130 degrees C, and the experimental conditions were optimized. The sequential arrangements of ether-sulfone/ether-ketone units present in these materials were estimated by a best-fit minimization method using the MACO4 computer program which compares the experimental FAB-MS spectral intensities with theoretical intensities. Random PES/PEK copolymer samples showed quite the same sequence arrangements as expected from monomer feed-ratios used in the syntheses. Instead, a PES/PEK copolymer sample expected to be exactly alternating (from the synthesis procedure) showed 44% of random sequences owing to the transetherification reaction which occurred in the synthesis. The results of sequential analysis obtained from C-13 NMR data compare well with the data obtained by the FAB-MS analysis. (literal)

Prodotto di

• Istituto di chimica e tecnologia dei polimeri (ICTP) (Istituto)

Autore CNR

• CONCETTO PUGLISI (Unità di personale interno)
• FILIPPO SAMPERI (Persona)
• MAURIZIO MONTAUDO (Unità di personale interno)

Incoming links:

Autore CNR di

• FILIPPO SAMPERI (Persona)
• CONCETTO PUGLISI (Unità di personale interno)
• MAURIZIO MONTAUDO (Unità di personale interno)

Prodotto

• Istituto di chimica e tecnologia dei polimeri (ICTP) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Macromolecular chemistry and physics (Rivista)