Skip to main navigation Skip to search Skip to main content

Self-consistent model of concentration and temperature dependence of permeability in rubbery polymers

  • Rajeev S. Prabhakar
  • , Roy Raharjo
  • , Lora G. Toy
  • , Haiqing Lin
  • , Benny D. Freeman
  • University of Texas at Austin
  • Air Liquide S.A.
  • RTI International

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

A model describing the concentration and temperature dependences of gas and vapor permeability in rubbery polymers is presented. The solubility and permeability of propane in poly-(dimethylsiloxane) (PDMS), a commercially used vapor separation membrane material, were determined over a wide range of temperatures and pressures to test the model. The model describes propane permeability in PDMS with an average error of 8.2%. The model also accurately predicts a decrease in propane permeability in PDMS with decreasing permeate pressure at fixed feed pressure. The model has also been tested satisfactorily using literature data for transport of condensable penetrants in PDMS and poly(ethylene).

Original languageEnglish
Pages (from-to)1547-1556
Number of pages10
JournalIndustrial and Engineering Chemistry Research
Volume44
Issue number5
DOIs
StatePublished - Mar 2 2005

Fingerprint

Dive into the research topics of 'Self-consistent model of concentration and temperature dependence of permeability in rubbery polymers'. Together they form a unique fingerprint.

Cite this