T. Budtova et al., ELECTROKINETICS OF THE CONTRACTION OF A POLYELECTROLYTE HYDROGEL UNDER THE INFLUENCE OF CONSTANT ELECTRIC-CURRENT, Polymer gels and networks, 3(3), 1995, pp. 387-393
The kinetics of the contraction of a highly swollen polyelectrolyte hy
drogel under the influence of electric current was investigated. From
the results obtained, different mechanisms of the contraction may be s
upposed to predominate for different degrees of swelling. In the case
of a rather small contraction, it depends only on the magnitude of ele
ctric charge transported through the sample and is described by the Fa
raday law with the correction coefficient. The second mechanism may be
connected with electro-osmotic release of water.