On Schroeder´s Paradox in Ion-Exchange Polymers

Vjacheslav Roldughin, Larisa Karpenko-Jereb

Research output: Contribution to journalArticle

Abstract

The known Schroeder paradox, i.e., a difference in the degree of swelling of ion-exchange polymers at equilibrium with liquid water and its vapor, has been discussed. It has been noted that there is no paradoxicality in this phenomenon. An example of different “swelling” based on trivial physical considerations has been presented. A simple mechanism has been proposed for increased swelling of an ion-exchange polymer immersed in liquid water, this mechanism being associated with the action of the Maxwell stresses at a polymer/electrolyte interface. The predicted values of the “excess” swelling have been shown to correspond to the data of real experiments.
Original languageEnglish
Pages (from-to)795-799
Number of pages5
JournalColloid Journal
Volume78
Issue number6
DOIs
Publication statusPublished - 2016

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