Graphene-containing thermoresponsive nanocomposite hydrogels of poly(N-isopropylacrylamide) prepared by frontal polymerization (Articolo in rivista)

Type

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

Label

• Graphene-containing thermoresponsive nanocomposite hydrogels of poly(N-isopropylacrylamide) prepared by frontal polymerization (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1039/c1jm11076d (literal)

Alternative label

• Alzari, Valeria; Nuvoli, Daniele; Scognamillo, Sergio; Piccinini, Massimo; Gioffredi, Emilia; Malucelli, Giulio; Marceddu, Salvatore; Sechi, Mario; Sanna, Vanna; Mariani, Alberto (2011)
  Graphene-containing thermoresponsive nanocomposite hydrogels of poly(N-isopropylacrylamide) prepared by frontal polymerization
  in Journal of materials chemistry (Print)
  (literal)

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

• Alzari, Valeria; Nuvoli, Daniele; Scognamillo, Sergio; Piccinini, Massimo; Gioffredi, Emilia; Malucelli, Giulio; Marceddu, Salvatore; Sechi, Mario; Sanna, Vanna; Mariani, Alberto (literal)

Pagina inizio

• 8727 (literal)

Pagina fine

• 8733 (literal)

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

• 21 (literal)

Rivista

• Journal of materials chemistry (Rivista)

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

• 7 (literal)

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

• 24 (literal)

Note

• ISI Web of Science (WoS) (literal)
• ISI Web of Science (WOS) (literal)

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

• University of Sassari; Local INSTM unit; Porto Conte Ric Srl; Polytechnic University of Turin; Local INSTM Unit; Consiglio Nazionale delle Ricerche (CNR); University of Sassari (literal)

Titolo

• Graphene-containing thermoresponsive nanocomposite hydrogels of poly(N-isopropylacrylamide) prepared by frontal polymerization (literal)

Abstract

• Frontal polymerization has been successfully used to synthesize poly(N-isopropylacrylamide) nanocomposite hydrogels containing graphene. The latter was directly achieved by ultrasound treatment of a dispersion of graphite in N-methylpyrrolidone. The dispersion, having the concentration of 2.21 g L-1, was characterized by TEM analysis and mixed with suitable amounts of N-isopropylacrylamide for the synthesis of graphene-containing nanocomposite polymer hydrogels. The nanocomposite hydrogels were analyzed by SEM and Raman spectroscopy, and their swelling and rheological properties were investigated. It was found that graphene strongly influences the swelling ratio, dramatically increasing it, even if present in small amounts. Finally, the rheological properties of the hydrogels were correlated with the graphene content: G' modulus and complex viscosity were found to increase with increasing nanofiller concentration, thus indicating the occurrence of good interactions between the two phases. Nevertheless, at a high concentration (i.e., 0.13 wt.%), graphene showed a lubrication effect, lowering the rheological parameters and approaching the same pseudoplastic behaviour of the unfilled material. (literal)

Prodotto di

• Istituto di scienze delle produzioni alimentari (ISPA) (Istituto)
• Tecnologie sostenibili per la trasformazione, la conservazione ed il confezionamento dei prodotti ortofrutticoli (AG.P05.017.001) (Modulo)

Autore CNR

• SALVATORE MARCEDDU (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di scienze delle produzioni alimentari (ISPA) (Istituto)
• Tecnologie sostenibili per la trasformazione, la conservazione ed il confezionamento dei prodotti ortofrutticoli (AG.P05.017.001) (Modulo)

Autore CNR di

• SALVATORE MARCEDDU (Unità di personale interno)

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

• Journal of materials chemistry (Rivista)