A curable composition comprising: (i) 2.5 to 50 wt% crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt% curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii)15 to 45 wt% solvent; and (iv) 0 to 10 wt% of free radical initiator; wherein the molar ratio of (i):(ii) is 0.1 to 1.5. The compositions are useful for preparing ion exchange membranes.
