VAPOR LIQUID EQUILIBRIA FOR BENZENE POLYBUTADIENE AND CYCLOHEXANE POLYBUTADIENE SYSTEMS AT 333-K, 355-K, AND 373-K USING GAS-CHROMATOGRAPHY Academic Article uri icon

abstract

  • A perturbation chromatography apparatus has been designed and constructed for determining the vaporliquid equilibrium between a twocomponent (solvent/helium) vapor phase and a twocomponent (polymer/solvent) liquid phase. The apparatus performed very well, giving reproducible and reliable results that agree with independent, previously reported studies. All tests of the equipment indicated that it was successful in meeting the conditions of low column pressure drop, small perturbations, and slow flow rate that are required for perturbation chromatography. Binary polymer/solvent data were obtained for polybutadiene (PBD)/benzene or polybutadiene/cyclohexane systems at solvent partial pressures to 40 kPa and for nhexane at infinite dilution, all at the three temperatures of 333.15, 355.00, and 373.15 K. The experimental data for each system can be represented within experimental error by the FloryHuggins polymer solution theory using a single binary interaction parameter that is independent of temperature and concentration. Copyright 1982 John Wiley & Sons, Inc.

published proceedings

  • JOURNAL OF APPLIED POLYMER SCIENCE

author list (cited authors)

  • LAU, W. R., GLOVER, C. J., & HOLSTE, J. C.

citation count

  • 5

complete list of authors

  • LAU, WR||GLOVER, CJ||HOLSTE, JC

publication date

  • January 1982

publisher