Composites between alumina and an ester-ether-ester bioresorbable copolymer (Articolo in rivista)

Type

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

Label

• Composites between alumina and an ester-ether-ester bioresorbable copolymer (Articolo in rivista) (literal)

Anno

• 2001-01-01T00:00:00+01:00 (literal)

Alternative label

• Cerrai P., Guerra G.D., Palla M., Tricoli M., Krajewski A., Ravaglioli A., Guicciardi S., Maltinti S., D?Acunto M., Narducci P. (2001)
  Composites between alumina and an ester-ether-ester bioresorbable copolymer
  in Macromolecular materials and engineering (Print)
  (literal)

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

• Cerrai P., Guerra G.D., Palla M., Tricoli M., Krajewski A., Ravaglioli A., Guicciardi S., Maltinti S., D?Acunto M., Narducci P. (literal)

Pagina inizio

• 546 (literal)

Pagina fine

• 554 (literal)

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

• The lack of chemical inertness of alumina towards epsilon-caprolactone leads to reconsider the use of alumina as a biochemically inert material. (literal)

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

• 286 (literal)

Rivista

• Macromolecular materials and engineering (Rivista)

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

• Synthesis and characterization of the composites between alumina and an ester-ether-ester bioresorbable copolymer. Alumina is able to start the polymerization of epsilon-caprolactone in the reaction condition. Two polymerization mechanisms, simultaneously occurring, are proposed for the formation of poly(epsilon-caprolactone), both free and bonded to the alumina surface. (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• 1, 2, 3, 4: CSMMPB-CNR, via Diotisalvi 2, I-56126 Pisa; 5, 6, 7: IRTEC-CNR, via Granarolo 64, I-48018 Faenza; 8: Dip. Scienze Uomo e Ambiente, sez. Chim. e Biochim. Med., Univ. Pisa, Via Roma 55, I-56126 Pisa; 9: Dipartimento di Scienze della Terra, Università di Pisa, via S. Maria 53, I-56126 Pisa; 10: Dip. Ing. Chim., Chim. Ind. Sci. Mat., Univ. Pisa, Via Diotisalvi 2, I-56126 Pisa. (literal)

Titolo

• Composites between alumina and an ester-ether-ester bioresorbable copolymer (literal)

Abstract

• Composites between alumina and the bioresorbable poly(epsilon-caprolactone-oxyethylene-epsilon-caprolactone) block copolymer were obtained by reacting epsilon-caprolactone with preformed poly(ethylene glycol), in the presence of ceramic alumina powder, at 185 °C under vacuum. The mechanical properties, tested by compression and flexural strengths and Young’s modulus, show that the copolymer interacts poorly with the alumina grains. Both Scanning Electron and Atomic Force Microscopy show a scarce wettability between alumina and copolymer, as well as the aggregation of alumina micro-particles into clusters of big size. Both mechanical and morphological tests seem to indicate a stronger interaction between the alumina micro-particles than between the alumina surface and the reaction mixture during the polymerization, as well as a “compacting effect” by alumina on the forming copolymer. The FT-IR spectra of the composites show both copolymer and alumina absorption bands. The FT-IR analysis on the fractions of an extraction with chloroform indicates the presence of traces of poly(epsilon-caprolactone), stably bonded to alumina. The polymerization of epsilon-caprolactone with alumina alone in the same conditions gives poly(epsilon-caprolactone), mainly free and in minor part bonded to the alumina surface. Two polymerization mechanisms, simultaneously occurring, are proposed. The most relevant result of this work is the lack of chemical inertness of alumina towards epsilon-caprolactone, which leads to reconsider also the use of alumina as a biochemically inert material. (literal)

Prodotto di

• Institute for composite and biomedical materials (IMCB) (Istituto)

Autore CNR

• PIERO CERRAI (Unità di personale interno)
• ANTONIO RAVAGLIOLI (Unità di personale interno)
• STEFANO GUICCIARDI O GUIZZARDI (Persona)
• MARIO TRICOLI (Persona)
• ADRIANO KRAJEWSKI (Unità di personale interno)
• GIULIO DANTE GUERRA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Composites between alumina and an ester-ether-ester bioresorbable copolymer" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• MARIO TRICOLI (Persona)
• STEFANO GUICCIARDI O GUIZZARDI (Persona)
• GIULIO DANTE GUERRA (Unità di personale interno)
• ADRIANO KRAJEWSKI (Unità di personale interno)
• PIERO CERRAI (Unità di personale interno)
• ANTONIO RAVAGLIOLI (Unità di personale interno)

Prodotto

• Institute for composite and biomedical materials (IMCB) (Istituto)

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

• Macromolecular materials and engineering (Rivista)

Insieme di parole chiave di

• Parole chiave di "Composites between alumina and an ester-ether-ester bioresorbable copolymer" (Insieme di parole chiave)