Gas sorption and dilation in poly(2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole-co-tetrafluoroethylene): Comparison of experimental data with predictions of the nonequilibrium lactice fluid model

M.G. De Angelis, T.C. Merkel, V.I. Bondar, B.D. Freeman, F. Doghieri, G.C. Sarti

Research output: Contribution to journalArticlepeer-review

Abstract

The sorption and dilation properties of a series of n-alkanes and the corresponding perfluorinated compounds have been examined in two amorphous copolymers of tetrafluoroethylene (TFE) and 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole (BDD), commercially available under the names Teflon AF1600 and AF2400. The analysis was made at three different temperatures: 25, 35, and 45°C, to test the effect of temperature on solubility and to evaluate the sorption enthalpies. The partial molar volumes of most penetrants have also been determined in both copolymers. The experimental data have been satisfactorily compared with the sorption isotherms predicted or correlated using the nonequilibrium lattice fluid model.
Original languageEnglish
Pages (from-to)1276-1288
Number of pages13
JournalMacromolecules
Volume35
Issue number4
DOIs
Publication statusPublished - 2002

Keywords

  • Dilation
  • Gas sorption
  • Nonequilibrium lattice fluid
  • Polybistrifluoromethyl difluoro dioxole tetrafluoroethylene
  • Polydimethylsiloxane
  • Amorphous materials
  • Copolymers
  • Crystal lattices
  • Enthalpy
  • Mathematical models
  • Solubility
  • Sorption
  • Thermal effects
  • Fluorine containing polymers

Fingerprint Dive into the research topics of 'Gas sorption and dilation in poly(2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole-co-tetrafluoroethylene): Comparison of experimental data with predictions of the nonequilibrium lactice fluid model'. Together they form a unique fingerprint.

Cite this