Abstract
A nanoreactor effect is found that consists in a considerable (two orders of magnitude) increase in the rate of ion exchange in sulfonated calixarene-containing polymers. The kinetics of ion exchange in network calixarene-containing polymers with sulfonic acid and phenolic ionogenic groups is studied. It is shown that the interaction of these polymers with aqueous solutions of LiCl, NaCl, AgNO3, LiOH, NaOH, and (CH3)4NOH is controlled by ion diffusion in the polymeric phase. An analytical dependence of the conversion on an interdiffusion coefficient and the time of ion exchange in bifunctional cation exchangers is derived using the spherical-layer model.
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