Solubility of propylene in semicrystalline polypropylene

Yoshiyuki Sato, Masashi Yurugi, Takafumi Yamabiki, Shigeki Takishima, Hirokatsu Masuoka

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Gas solubilities and polymer swelling in propylene and semicrystalline polypropylene system at temperatures of 323.2 and 348.2 K and pressures up to propylene's vapor pressure were measured. Pressure, specific volume, and temperature (PVT) measurements of polypropylene were carried out at temperatures from 313 to 573 K and pressures up 200 MPa. Two kinds of polypropylenes, which had different stereoregularities, were used for both solubility and PVT measurements. The solubilities were correlated with the Sanchez-Lacombe equation of state (EOS) with temperature-dependent binary interaction parameters to within 5% average relative percentage deviation. Swelling ratios estimated with Sanchez-Lacombe EOS coupled with optimized interaction parameters were 20% lower than the experimental values.

Original languageEnglish
Pages (from-to)1134-1143
Number of pages10
JournalJournal of Applied Polymer Science
Volume79
Issue number6
DOIs
Publication statusPublished - 2001 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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