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Characterization of size-exclusion effects in highly swollen hydrogels: Correlation and prediction by Alexander P. Sassi; Harvey W. Blanch; John M. Prausnitz is a Materials Science article available to read on EtoBox.

What is Characterization of size-exclusion effects in highly swollen hydrogels: Correlation and prediction about?

The literature provides several size-exclusion theories to predict solute exclusion by highly swollen hydrogels. Theoretical calculations are compared to the experimental data of Walther et al. (1993) for partitioning of poly(ethy1ene g1ycol)s and poly(ethy1ene oxide)s of various molecular weight into hydrogels made of poly-N-isopropylacrylamide or poly-2hydroxyethyl methacrylate/dimethylaminoethyl methacrylate. Experimental size-exclusion curves can be correlated almost equally well by theories which characterize the gel as a collection of pores or of fibers; differences between these two theories are important only for partition coefficients near zero or unity. The experimental data of Walther et al. can be predicted best by Schnitzer's uniform pore model.

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Author

Alexander P. Sassi; Harvey W. Blanch; John M. Prausnitz

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0021-8995)

Published

1996

Language

EN

Field

Materials Science (Physical Sciences)