abstract |
ALKENYLSULFONATE COPOLYMERS, WHICH, ON HEATING, UNDERGO SELF-CROSS-LINKING, AND WHEN SO CROSS-LINKED, CAN BE FORMED INTO CATION PERMOSELECTIVE MEMBRANES, SAID COPOLYMERS COMPRISING, IN CHEMICALLY COMBINED FORM: AN ALKENYLSULFONATE, VINYLIDENE CHLORIDE AND/OR A-CHLOROACRYLONITRILE, AND OPTIONALLY, AT LEAST ONE OTHER COPOLYMERIZABLE MONOMER CONTAINING A CH2=C< GROUP. |