Dynamics, fragility, and glass transition of low-molecular-weight linear homopolymers (Articolo in rivista)

Type

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

Label

• Dynamics, fragility, and glass transition of low-molecular-weight linear homopolymers (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

Alternative label

• Andreozzi, L; Autiero, C; Faetti, M; Giordano, M; Zulli, F (2008)
  Dynamics, fragility, and glass transition of low-molecular-weight linear homopolymers
  
  (literal)

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

• Andreozzi, L; Autiero, C; Faetti, M; Giordano, M; Zulli, F (literal)

Pagina inizio

• 4151 (literal)

Pagina fine

• 4159 (literal)

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

• 88 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• \"Univ Pisa, Dept Phys E Fermi, Pisa, Italy; CNR, INFM, PolyLab, I-56100 Pisa, Italy (literal)

Titolo

• Dynamics, fragility, and glass transition of low-molecular-weight linear homopolymers (literal)

Abstract

• Analysis of the dynamics of low-molar-mass linear homopolymers is important when trying to understand the mechanisms driving structural relaxation properties from molecular liquids to polymers. Theoretical models assume, in general, the same mobility of the different moieties of the macromolecule, but this hypothesis fails for low-molar-mass polymers. Therefore, isofrictional comparisons are necessary to interpret experimental data with theoretical models. In this work, the molar-mass dependence of the glass transition temperatures T-g, fragility indexes, and dynamic moduli of unentangled poly(ethyl acrylate) (PEA) melts are studied and discussed. All the results are interpreted in a coherent framework developed from the free-volume concept. The predictive power of this framework is also tested to fit theoretical and experimental master curves, introducing an 'inverse' isofrictional correction. (literal)

Autore CNR

• CIRO AUTIERO (Unità di personale esterno)
• LAURA ANDREOZZI (Persona)
• MARCO GIORDANO (Unità di personale esterno)
• massimo faetti (Persona)

Insieme di parole chiave

• Parole chiave di "Dynamics, fragility, and glass transition of low-molecular-weight linear homopolymers" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• LAURA ANDREOZZI (Persona)
• CIRO AUTIERO (Unità di personale esterno)
• MARCO GIORDANO (Unità di personale esterno)
• massimo faetti (Persona)

Insieme di parole chiave di

• Parole chiave di "Dynamics, fragility, and glass transition of low-molecular-weight linear homopolymers" (Insieme di parole chiave)