Abstract
The effect of organic surfactants (1,4-butynediol, benzoic and disulfonaphthalene acids) on electrochemical properties of heterogeneous ion-exchange membranes MK-40 and MA-40 is studied. The surfactants effect the membrane properties both under equilibrium conditions and, especially, in the electric field, suggesting that they are involved in both the exchange sorption and the electrotransport. The mechanism of their effect on the anionite membrane is considered. It is shown that bipolar boundaries can arise in the membrane, promoting water dissociation and transport of hydrogen and hydroxyl ions in the field direction.
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