Membranes for the dehydration of liquid and vapor organics / water - mixtures with layers having release activity on the basis of polyacrylamide

摘要

Membrane with a dense, non-porous separating layer of one or more layers of a polymer in the form of a homopolymer, copolymer, graft homo polymer and / or graft copolymer, which, by means of a diacylkupplung of acid amides having carboxylic acid groups with elimination of water is crosslinked, obtainable bya) of a base polymer having an acidamide group is assumed,b) the base polymer in an aqueous or aqueous / organic solvent is at least partially dissolved,c) the base polymer by partial hydrolysis of its acid amides is modified, wherein the for crosslinking by means of diacylkupplung required carboxylic acid groups are formed, and at the same time with the elimination of water draining crosslinking of the carboxylic acid groups is carried out with the acid amides.