Membrane consisting of polyquaternary amine ion exchange polymer network interpenetrating the chains of thermoplastic matrix polymer

摘要

An ion-exchange membrane is formed from a solution containing dissolved matrix polymer and a set of monomers which are capable of reacting to form a polyquaternary ion-exchange material; for example vinyl pyridine and a dihalo hydrocarbon. After casting the solution and evaporation of the volatile components, a relatively strong ion-exchange membrane is obtained which is capable of removing anions, such as nitrate or chromate from water. The ion-exchange polymer forms an interpenetrating network with the chains of the matrix polymer.