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Diffusion of cyclic hydrocarbons in benzene‐swollen, divinylbenzene‐crosslinked polystyrene beads
Author(s) -
Roucis John B.,
Ekerdt John G.
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070271018
Subject(s) - divinylbenzene , polystyrene , diffusion , benzene , solvent , polymer , volume fraction , polymer chemistry , materials science , volume (thermodynamics) , swelling , chemical engineering , chemistry , copolymer , thermodynamics , organic chemistry , styrene , composite material , physics , engineering
Diffusion of cyclic hydrocarbons within benzene‐swollen, polystyrene‐divinylbenzene gel‐type beads were studied at 25°C. Solute concentrations less than 6.3 × 10 −2 M and volume fractions of polymer less than 0.6 were used. Diffusion coefficients were calculated assuming Fick's law diffusion, and were found to depend upon the volume fraction of polymer. The dependence suggests that the swollen polymer network acts as a physical obstruction to diffusion. Studies indicated that the solute–solvent interactions affecting diffusion were the same in the solvent‐swollen polymer as in the pure benzene solvent.