Self-diffusion Coefficients of Solvents in Polystyrene Gels
Self-diffusion coefficients of toluene, acetonitrile, chloroform, and dichloromethane in swollen 1-20% cross-linked polystyrene beads have been determined by application of a new model to magnetization-transfer 13C NMR data for exchange of solvent in and out of the beads. The results agree closely with solvent self-diffusion coefficients in the same samples determined independently by the pulsed-gradient spin-echo NMR method. The new method also has been applied to self-diffusion of dichloromethane in macroporous polystyrene beads. © 1987 American Chemical Society.
W. T. Ford et al., "Self-diffusion Coefficients of Solvents in Polystyrene Gels," Journal of the American Chemical Society, American Chemical Society (ACS), Jan 1987.
The definitive version is available at http://dx.doi.org/10.1021/ja00258a005
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© 1987 American Chemical Society (ACS), All rights reserved.