INSOLUBLE, SLIGHTLY-SWELLING POLYMERS WITH AMINO GROUPS, PROCESS FOR MAKING THEM AND THEIR USE

摘要

Insoluble, slightly-swelling polymers containing amino groups obtainable from popcorn polymers which contain units of structure (I), in which R, R<1> = H or C1 to C4 alkyl, by the separation of the R-CO- group from at least 2 % of the monopolymerised units of structure (I) with the formation of units of structure (II), process for producing the amino group-containing popcorn polymers by the polymerisation of N-vinyl carboxylic acid amides and possibly other monoethylenically unsaturated monomers copolymerisable therewith containing 0.1 to 10 % wt. in relation to the monomers used in polymerisation of an at least two-ethylenically unsaturated unconjugated double-bond-containing compound as the cross-linking agent with the exclusion of oxygen, and polymerisation initiators to form popcorn polymers and the separation of formyl groups from at least 2 % of the polymerised N-vinyl carboxylic acid amides and use of the insoluble, slightly-swelling polymers with amino groups as an ion exchangers or adsorber resins for metal ions.