Thermodynamic analysis of two-dimensional crystal growth in nucleated isotactic polypropylene (Articolo in rivista)

Type
Label
  • Thermodynamic analysis of two-dimensional crystal growth in nucleated isotactic polypropylene (Articolo in rivista) (literal)
Anno
  • 1996-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.362997 (literal)
Alternative label
  • M. Pieruccini, G. Di Marco and M. Lanza (1996)
    Thermodynamic analysis of two-dimensional crystal growth in nucleated isotactic polypropylene
    in Journal of applied physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Pieruccini, G. Di Marco and M. Lanza (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 80 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto Tecniche Spettroscopiche CNR (literal)
Titolo
  • Thermodynamic analysis of two-dimensional crystal growth in nucleated isotactic polypropylene (literal)
Abstract
  • A thermodynamic model is used to describe the two-dimensional crystallization kinetics ?as observed by means of a calorimeter? of polypropylene nucleated with small amounts of indigo. The customary expression of the free enthalpy associated to secondary nucleation is initially used to analyze the experimental data. A significant dependence of the apparent surface tension ?either basal or lateral? of the nuclei on the concentration of indigo is pointed out. To account for this effect, a phenomenological correction to the free enthalpy of nucleation is considered afterwards, which is connected with an entropy contribution arising from the formation of the crystal-melt interface. A more detailed data analysis is then carried out in light of this model. (literal)
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