A new theoretical model was developed for the description of spherical and quasispherical
solute diffusion through highly swollen polymeric networks and membranes. This model …

This work presents important new evidence that the crosslinked structure of swollen
polymers acts as a molecular screen for diffusion of large solutes. Diffusion experiments of …

A theoretical model was developed to describe solute transport through moderately swollen
networks. The model is an extension of the previous analysis of Peppas and Reinhart …

An overview of macroscopic, mass transfer, irreversible thermodynamic and macromolecular
theories is presented for application in solute diffusion through polymeric membranes …

A model is developed to express the solute diffusion coefficient through semicrystalline
polymeric networks. The crystallites create impermeable diffusional barriers around the …

A scaling law was developed for the diffusion coefficient of spheroidal and ellipsoidal
solutes in nonporous, equilibrium‐swollen hydrogels. The law relates the solute diffusion …

The effective diffusivity of a solute within a pore of comparable size is frequently found to be
less than its value in bulk solution. This phenomenon is known as “hindered” or “restricted” …

The question of viscous flow versus molecular diffusion mechanisms for pressure‐induced
liquid transport through membranes is critically examined for the specific case of …

The present book contains a comparison of existing theoretical models developed in order
to describe membrane separation processes. In general, the permeation equations resulting …

The concept of a homogeneous polymer membrane, in which randomly coiled
macromolecules pack the solid phase uniformly leaving some unoccupied space as free …