The effect of molar volume on the swelling of poly(dimethylsiloxane) in fluorocarbon fluids

Ferenc Horkay, William K. Waldron, Gregory B. McKenna

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The vapour sorption of three fluorocarbon fluids (tetrafluoroethane, chlorotetrafluoroethane, and heptafluoropropane) has been measured in crosslinked and uncrosslinked poly(dimethylsiloxane) as a function of the temperature in the interval 35-105°C. For a given solvent, the swelling activity parameter, S, for the solvent/crosslinked polymer system decreases as both the degree of swelling and the temperature increase. The range of experimental conditions examined allowed consideration of S for different solvents, but constant molar volume V1. Plots of S as a function of degree of swelling can be reduced to families of curves at constant V1 for the three solvents studied here. The dependence of S on solvent quality and temperature is then encompassed in its variation with V1.

Original languageEnglish
Pages (from-to)4525-4527
Number of pages3
JournalPolymer
Volume36
Issue number23
DOIs
StatePublished - 1995

Keywords

  • Frenkel-Flory-Rehner hypothesis
  • fluorocarbon fluids
  • poly(dimethylsiloxane)
  • swelling activity parameter

Fingerprint Dive into the research topics of 'The effect of molar volume on the swelling of poly(dimethylsiloxane) in fluorocarbon fluids'. Together they form a unique fingerprint.

Cite this