Cooperativity length scale in nanocomposites: Interfacial and confinement effects (Articolo in rivista)

Type

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

Label

• Cooperativity length scale in nanocomposites: Interfacial and confinement effects (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevE.88.042605 (literal)

Alternative label

• Saiter A.; Prevosto D.; Passaglia E.; Couderc H.; Delbreilh L.; Saiter J.M. (2013)
  Cooperativity length scale in nanocomposites: Interfacial and confinement effects
  in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
  (literal)

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

• Saiter A.; Prevosto D.; Passaglia E.; Couderc H.; Delbreilh L.; Saiter J.M. (literal)

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

• http://www.scopus.com/inward/record.url?eid=2-s2.0-84886655298&partnerID=q2rCbXpz (literal)

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

• 88 (literal)

Rivista

• Physical review. E, Statistical, nonlinear, and soft matter physics (Rivista)

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

• 4 (literal)

Note

• Scopu (literal)

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

• AMME-LECAP EA4528 International Laboratory, Institut des Matériaux de Rouen, Université et INSA de Rouen, BP12, 76801 Saint Etienne du Rouvray cedex, France; Institute for Chemical and Physical Processes, CNR Largo, Pontecorvo 3, 56127 Pisa, Italy; ICCOM- CNR UOS Pisa, Via G. Moruzzi 1, 56124 Pisa, Italy; Institut de Recherche d'Hydroquébec, 1800, boul. Lionel-Boulet, Varennes, QC J3X 1S1, Canada (literal)

Titolo

• Cooperativity length scale in nanocomposites: Interfacial and confinement effects (literal)

Abstract

• Interfacial and confinement effects on the evolution of cooperativity on approaching the glass transition have been studied in poly(propylenecoethylene) functionalized with diethylmaleate, polyethylene 1,4-cyclohexylenedimethylene terephthalate glycol and their nanocomposites with montmorillonite. A small increase of the structural dynamic cooperativity, a weak alteration of the temperature dependence of the characteristic relaxation frequency, and no changes in the glass transition temperature observed in poly(propylenecoethylene)-based samples can be rationalized in terms of interfacial interactions between polymer and exfoliated clay. On the other hand, confinement of polymer chains in the galleries of clay (intercalated nanocomposite) produces a strong reduction of cooperativity, of the temperature dependence of the characteristic relaxation frequency, and of the glass transition temperature in polyethylene 1,4-cyclohexylenedimethylene terephthalate glycol samples. Finally, by investigating the temperature dependence of a generalized fragility and of cooperativity, we evidenced that fragility of glass formers is determined not only by cooperativity. © 2013 American Physical Society. (literal)

Prodotto di

• Institute of chemistry of organometallic compounds (ICCOM) (Istituto)

Autore CNR

• ELISA PASSAGLIA (Unità di personale interno)

Incoming links:

Prodotto

• Institute of chemistry of organometallic compounds (ICCOM) (Istituto)

Autore CNR di

• ELISA PASSAGLIA (Unità di personale interno)

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

• Physical review. E, Statistical, nonlinear, and soft matter physics (Rivista)