Supercritical CO2-EtOH expanded liquid processing to produce tailored PEEK-WC membranes (Articolo in rivista)

Type
Label
  • Supercritical CO2-EtOH expanded liquid processing to produce tailored PEEK-WC membranes (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c4ra11021h (literal)
Alternative label
  • Gugliuzza, Annarosa; Cardea, Stefano; Drioli, Enrico; Reverchon, Ernesto (2014)
    Supercritical CO2-EtOH expanded liquid processing to produce tailored PEEK-WC membranes
    in RSC advances
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gugliuzza, Annarosa; Cardea, Stefano; Drioli, Enrico; Reverchon, Ernesto (literal)
Pagina inizio
  • 65098 (literal)
Pagina fine
  • 65107 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 4 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 110 (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale delle Ricerche (CNR); University of Salerno; University of Calabria; Hanyang University (literal)
Titolo
  • Supercritical CO2-EtOH expanded liquid processing to produce tailored PEEK-WC membranes (literal)
Abstract
  • Supercritical CO2 expanded ethanol is used to induce a phase separation process for one-step preparation of porous skinless membranes from a modified poly(etheretherketone). The process takes the advantage of the flexibility of the procedure that is also timesaving and greener than traditional phase separation methods. Skin-less membranes with modular structures have been obtained, combining different processing parameters, including SC-expanded liquid composition, polymer concentration, temperature and pressure. Kinetics and thermodynamics that control the phase separation have been analyzed in relation to diffusivity and solvent power of the SC-expanded liquid. Combining the different processing parameters, open structures with high void volume fraction and high degree of interconnectivity have been obtained, as confirmed by a very low resistance to mass transfer. Nitrogen fluxes up to 350 L cm(-2) min(-1) have been measured through membranes prepared at 250 bar, 35 degrees C, and 10% w/w. (literal)
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