Poly-(1-hydroxy-4-vinylpyridinium) anion-exchangers

Cross-linked poly-(1-hydroxy-4-vinylpyridinium) ion-exchangers have been prepared, in an attempt to utilize the specificity that N-oxides show to heavy metals, and to uranium in particular. However, the polymers obtained behaved as ordinary anion-exchangers, somewhat less basic than Dowex 2. The main advantage of the new exchanger is its high exchange rate.