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Journal Article

Examination methods for the physicochemical properties of synthetic membranes

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Pusch,  Wolfgang
Department of Physical Chemistry, Max Planck Institute of Biophysics, Max Planck Society;

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Citation

Pusch, W. (1986). Examination methods for the physicochemical properties of synthetic membranes. Pure and Applied Chemistry, 58(12), 1669-1676.


Cite as: https://hdl.handle.net/21.11116/0000-0008-3EC8-2
Abstract
Methods for the examination of the physico-chemical properties of synthetic membranes are discussed starting with the determination of membrane pore structure and organization. Subsequently, the determination of equilibrium (e.g. water content, fixed charge concentration) and transport parameters of synthetic membranes is outlined. Using the phenomenological relationships of the thermodynamics of irreversible processes, the hydrodynamic and osmotic permeability, the reflection coefficient, and the asymptotic solute (salt) rejection can be obtained from dialysis and hyperfiltration experiments. The experimental set-ups for both dialysis and hyperfiltration experiments are described.