Solubility of butane and isobutane in molten polypropylene and polystyrene

Yoshiyuki Sato, Ming Wang, Shigeki Takishima, Hirokatsu Masuoka, Taku Watanabe, Yoshihito Fukasawa

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The solubility of butane and isobutane in molten polypropylene (PP) and polystyrene (PS) was measured at pressures up to 3 MPa and along four isotherms from 438 to 483 K for PP and from 348 to 473 K for PS. The solubility increased with increasing pressure and decreasing temperature. At 438 K and 2 MPa, the solubilities of butane and isobutane in PP were 0.15 and 0.11 g-gas/g-polym, respectively. At 423 K and 2 MPa, the solubilities of butane and isobutane in PS were 0.08 and 0.05 g-gas/g-polym, respectively. Solubility could be correlated with the Sanchez-Lacombe equation of state with temperature-dependent binary interaction parameters to within 4.4% average relative deviation. Henry's constant for these gases in the PP and PS obtained in this work were used to determine correlation equations along with literature data.

Original languageEnglish
Pages (from-to)2083-2089
Number of pages7
JournalPolymer Engineering and Science
Volume44
Issue number11
DOIs
Publication statusPublished - 2004 Nov 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

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    Sato, Y., Wang, M., Takishima, S., Masuoka, H., Watanabe, T., & Fukasawa, Y. (2004). Solubility of butane and isobutane in molten polypropylene and polystyrene. Polymer Engineering and Science, 44(11), 2083-2089. https://doi.org/10.1002/pen.20213