Composites between hydroxyapatite and poly(epsilon-caprolactone) synthesized in open system at room temperature (Articolo in rivista)

Type

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

Label

• Composites between hydroxyapatite and poly(epsilon-caprolactone) synthesized in open system at room temperature (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Guerra G.D.1, Cerrai P.1, Tricoli M.1, Krajewski A.2, Ravaglioli A.2, Mazzocchi M.2, Barbani N.3 (2006)
  Composites between hydroxyapatite and poly(epsilon-caprolactone) synthesized in open system at room temperature
  
  (literal)

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

• Guerra G.D.1, Cerrai P.1, Tricoli M.1, Krajewski A.2, Ravaglioli A.2, Mazzocchi M.2, Barbani N.3 (literal)

Pagina inizio

• 69 (literal)

Pagina fine

• 79 (literal)

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

• 17 (literal)

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

• cit. 1 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• 1 IMCB-CNR, Pisa; 2 ISTEC-CNR, Faenza; 3 Dip. Ing. Chim, Chim. Ind. e Sci. Mater., Università di Pisa (literal)

Titolo

• Composites between hydroxyapatite and poly(epsilon-caprolactone) synthesized in open system at room temperature (literal)

Abstract

• The hydroxyls present on the surface of hydroxyapatite (HA) granules, annealed at 700°C, 900°C and 1100°C, are able to initiate the polymerization of epsilon-caprolactone (CL), not only at 185°C under vacuum, but also at room temperature in open system. A polymer layer ionically linked to the substrate is formed on HA surface, enhancing the compatibility between the organic phase and the inorganic one in composite biomaterials. We studied the characteristics of the polymer, produced by the reaction carried out at room temperature in open system, as well as the percentages of the poly(epsilon-caprolactone) (PCL) ionically bonded to the HA structure and of the “free” one. Both percentages appear very dependent on the annealing temperature; in particular, HA annealed for 1 hour at 1100°C is the most efficient initiator of the reaction leading to ionically bonded PCL. The percentages of “free” polymer are much higher than at 185°C under vacuum. Its formation is attributed to the role of water in opening the CL rings, and to the presence of carbonate and hydrogen-phosphate ions in the HA annealed at lower temperatures. The presence of water appears to be the limiting factor for the production of PCL not bonded to the HA structure. (literal)

Prodotto di

• Institute for composite and biomedical materials (IMCB) (Istituto)
• Biomateriali ed ingegneria dei tessuti (PM.P02.004.002) (Modulo)

Autore CNR

• MARIO TRICOLI (Persona)
• PIERO CERRAI (Unità di personale interno)
• GIULIO DANTE GUERRA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Composites between hydroxyapatite and poly(epsilon-caprolactone) synthesized in open system at room temperature" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• MARIO TRICOLI (Persona)
• GIULIO DANTE GUERRA (Unità di personale interno)
• PIERO CERRAI (Unità di personale interno)

Prodotto

• Institute for composite and biomedical materials (IMCB) (Istituto)
• Biomateriali ed ingegneria dei tessuti (PM.P02.004.002) (Modulo)

Insieme di parole chiave di

• Parole chiave di "Composites between hydroxyapatite and poly(epsilon-caprolactone) synthesized in open system at room temperature" (Insieme di parole chiave)