http://www.cnr.it/ontology/cnr/individuo/prodotto/ID18125

Development and rheological investigation of novel alginate/N-succinylchitosan hydrogels (Articolo in rivista)

Type

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

Label

Development and rheological investigation of novel alginate/N-succinylchitosan hydrogels (Articolo in rivista) (literal)

Anno

2008-01-01T00:00:00+01:00 (literal)

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

10.1002/polb.21450 (literal)

Alternative label

G. Gomez d'Ayala; P. Laurienzo; M. R. Nobile; V. Pirozzi; E. Somma (2008)
Development and rheological investigation of novel alginate/N-succinylchitosan hydrogels
in Journal of polymer science. Part B, Polymer physics; Wiley, New York (Stati Uniti d'America)
(literal)

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

G. Gomez d'Ayala; P. Laurienzo; M. R. Nobile; V. Pirozzi; E. Somma (literal)

Pagina inizio

1167 (literal)

Pagina fine

1182 (literal)

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

N.° citazioni: 3 (Fonte: Scopus) (literal)

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

46 (literal)

Rivista

Journal of polymer science. Part B, Polymer physics (Rivista)

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

15 (literal)

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

12 (literal)

Note

Scopu (literal)

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

Department of Chemical and Food Engineering, University of Salerno, Via Ponte Don Melillo 84084 Fisciano (Salerno) Italy; Institute of Polymer Chemistry and Technology (ICTP) CNR, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy. (literal)

Titolo

Development and rheological investigation of novel alginate/N-succinylchitosan hydrogels (literal)

Abstract

In the present paper alginate hydrogels and novel hydrogels based on blends of alginate/N-succinylchitosan have been realized in water solution at neutral conditions. The gels have been obtained by cross-linking via the internal setting method using calcium carbonate (CaCO3) as calcium ions source. A rheological investigation of both the plain alginate and the alginate/N-succinylchitosan blend hydrogels has been performed by means of oscillatory dynamic measurements. The effect of the inclusion of different amounts of CaCO3 on the critical deformation (gc) characterizing the limit of the linear viscoelastic regime has been studied for the plain alginate gels. The frequency response in small amplitude oscillatory experiments of the plain alginate gels has been investigated in terms of the storage (G) and loss (G) modulus behaviour. The dynamic data have been interpreted in terms of the Friedrich and Heymann model. The inclusion of the N-succinylchitosan, in the range 10 to 50% w/w, had no effect on the gc values. On the contrary, when the 10% w/w of the N-succinylchitosan is added to the plain alginate gels, a significant increase in the storage modulus values is recorded for all the systems analyzed. The gelation kinetics has been investigated and the results indicate that the kinetics process can be accelerated increasing the percentage of Ca+2 ions and /or including the N-succinylchitosan in the plain alginate systems. Finally, the morphological analysis of scaffolds obtained from the hydrogels through freeze-drying revealed an interconnected porous structure. (literal)

Editore