Polyketone Nanocomposites by Palladium-Catalyzed Ethylene-Carbon Monoxide-(Propene) Co(Ter)polymerization Inside an Unmodified Layered Silicate (Articolo in rivista)

Type
Label
  • Polyketone Nanocomposites by Palladium-Catalyzed Ethylene-Carbon Monoxide-(Propene) Co(Ter)polymerization Inside an Unmodified Layered Silicate (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Miller H.A.;Moneti S.; Vizza F.; Passaglia E.; Bianchini C.; Bronco S.; Ceriegi S.; Sulcis R.;Frediani M.; Ciardelli F.; Costa G. (2006)
    Polyketone Nanocomposites by Palladium-Catalyzed Ethylene-Carbon Monoxide-(Propene) Co(Ter)polymerization Inside an Unmodified Layered Silicate
    in E-Polymers
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Miller H.A.;Moneti S.; Vizza F.; Passaglia E.; Bianchini C.; Bronco S.; Ceriegi S.; Sulcis R.;Frediani M.; Ciardelli F.; Costa G. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 3 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, Area Ric, ICCOM, Florence, Italy; CNR, ICCOM, I-56100 Pisa, Italy; INFM, PolyLab, Pisa, Italy; Univ Pisa, Dipartimento Chim & Chim Ind, Pisa, Italy; Scuola Normale Super Pisa, Pisa, Italy; Univ Florence, Dipartimento Chim, I-50019 Sesto Fiorentino, Italy; CNR, ISMAC, Genova Sect, Area Ric Genova, Genoa, Italy (literal)
Titolo
  • Polyketone Nanocomposites by Palladium-Catalyzed Ethylene-Carbon Monoxide-(Propene) Co(Ter)polymerization Inside an Unmodified Layered Silicate (literal)
Abstract
  • Composites from Na-montmorillonite with a content in inorganic material ranging from 3 to 98 wt % were prepared in situ either by copolymerization of ethylene and CO or by terpolymerization of ethylene, propene and CO using a palladium(II) catalyst modified with 1,3-bis( diphenylphosphino) propane. This catalytic system is active in polar media and allowed to produce nanocomposites starting from unmodified Na-montmorillonite in water-methanol solutions. The morphological analysis, performed on samples with less than 40 wt % silicate by XRD and TEM, showed the formation of either intercalated or exfoliated ( nanocomposite) structures, depending on the initial amount of the layered silicate in the reactor as well as the presence of propene as comonomer. Improved thermal stability of the hybrid materials, as compared to the corresponding organic polymers, was shown by TGA. A preliminary study of the blending of some polyketone nanocomposites with polyamide (nylon-6) was carried out by melt mixing at high temperature in a Brabender mixer. (literal)
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