TR2## where n=0-0.95 mole fraction of neutralized acid moieties; m=0.05-1.0 mole fraction of acid moieties with the proviso that n=m=1; X1, X2, X3 are each a hydrogen atom or a monovalent organic radical; Y is a single bond or a divalent organic radical; Z is a metallic ion or a tertiary ammonium ion; and p is a number such that the polymer has a molecular weight between about 200,000 and about 5,