Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions (Articolo in rivista)

Type

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

Label

• Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Alternative label

• S. Cotugno; E. Di Maio; G. Mensitieri; S. Iannace; G.W. Roberts; R. G. Carbonell; and H. B. Hopfenberg (2005)
  Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions
  in Industrial & engineering chemistry research
  (literal)

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

• S. Cotugno; E. Di Maio; G. Mensitieri; S. Iannace; G.W. Roberts; R. G. Carbonell; and H. B. Hopfenberg (literal)

Pagina inizio

• 1795 (literal)

Pagina fine

• 1803 (literal)

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

• 44 (literal)

Rivista

• Industrial & engineering chemistry research (Rivista)

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

• cit. 10 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• IMCB-CNR Università di Napoli \"Federico II\" North Carolina State University (literal)

Titolo

• Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions (literal)

Abstract

• The formation of foams of biodegradable poly(ƒÕ-caprolatone) (PCL) from CO2 solutions in molten PCL was investigated. This study included characterization of the CO2 diffusion and equilibrium solubility in molten PCL in contact with supercritical CO2 (scCO2). Experiments were performed at 70, 80 and 90¢XC at CO2 pressures up to 25 MPa. Diffusion kinetics were studied as a function of the CO2 pressure and the data revealed a dramatic increase in apparent effective diffusivity at elevated pressure consistent with the incipient phase separation in the gas-molten PCL solution. Microcellular PCL foams were produced starting from an equilibrium CO2-PCL solution at 70 ¢XC over a wide range of initial pressures (from 6,5 to 32 MPa) by rapid depressurization and quenching of the polymer solution down to foaming temperatures ranging from 24 to 30„aC. Foam structures were characterized by scanning electron microscopy and cell sizes and density were determined quantitatively. The various foam structures were analyzed and interpreted in connection with the independently measured kinetics and equilibrium of CO2 sorption in PCL by considering the effects of starting pressure and foaming temperature on bubble nucleation and growth. (literal)

Prodotto di

• Polimeri, compositi e nanostrutture con proprietà funzionali programmate (PM.P02.003.001) (Modulo)
• Institute for composite and biomedical materials (IMCB) (Istituto)
• Tecnologie di materiali polimerici, compositi e nanostrutture (SP.P08.013.001) (Modulo)

Autore CNR

• SALVATORE IANNACE (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for composite and biomedical materials (IMCB) (Istituto)
• Polimeri, compositi e nanostrutture con proprietà funzionali programmate (PM.P02.003.001) (Modulo)
• Tecnologie di materiali polimerici, compositi e nanostrutture (SP.P08.013.001) (Modulo)

Autore CNR di

• SALVATORE IANNACE (Unità di personale interno)

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

• Industrial & engineering chemistry research (Rivista)

Insieme di parole chiave di

• Parole chiave di "Characterization of Microcellular Biodegradable Polymeric Foams Produced from Supercritical Carbon Dioxide Solutions" (Insieme di parole chiave)