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Effects of molecular size and configuration on diffusion in microporous membranes

✍ Scribed by W. M. Deen; M. P. Bohrer; N. B. Epstein

Publisher
American Institute of Chemical Engineers
Year
1981
Tongue
English
Weight
998 KB
Volume
27
Category
Article
ISSN
0001-1541

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✦ Synopsis

Abstract

Effects of molecular size and configuration on hindered diffusion were examined by measuring diffusion of two series of uncharged macromolecules through track‐etch membranes with uniform and well‐defined pore geometry. At any given Stokes‐Einstein radius, diffusivities in small pores were lower for ficoll (crosslinked structure) than for dextran (more nearly linear structure).

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