Abstract
It has been established that vaporization of binary solutions of low-molecular surfactants through asymmetric polymer membranes causes pronounced auto-oscillations of the permeability and selectivity of the membranes. This effect is accounted for by the periodic formation and collapse of micropores in the active layer of membranes; the corresponding mechanism is proposed. The validity of the physical pattern suggested is proved experimentally. A general approach to the mathematical description of substance transfer through structurally unstable solids is developed, which suggests some characteristic features of the differential equations that describe the process.
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M. V. Lomonosov Moscow State University. Translated fromZhurnal Strukturnoi Khimii, Vol. 36, No. 5, pp. 828–837, September–October, 1995.
Translated by I. Izvekova
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Ageev, E.P., Vershubskii, A.V. Reversible rearrangements in the structure of polymer membranes initiated by adsorbing binary liquids. 1. Experiment, mechanism, and general approach to the mathematical description. J Struct Chem 36, 752–760 (1995). https://doi.org/10.1007/BF02579666
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DOI: https://doi.org/10.1007/BF02579666