Insoluble, slightly-swelling polymers with amino groups,...

Details Insoluble, slightly-swelling polymers with amino groups,... Insoluble, slightly-swelling polymers with amino groups,...

C - Chemistry, Metallurgy

08

F

C08F 26/02 (2006.01) B01J 20/26 (2006.01) B01J 39/20 (2006.01) B01J 41/14 (2006.01) C08F 8/00 (2006.01) C08F 226/02 (2006.01) C12P 13/00 (2006.01)

Patent

CA 2143939

Insoluble, only slightly swellable polymers containing amino groups, which can be obtained from popcorn polymers containing units of the structure Image (I) where R and R1 are H or C1-C4-alkyl, by eliminating the group R-CO- from at least 2% of the incorporated units of the structure I, with the formation of units of the structure II Image (II), a process for the preparation of the amino-containing popcorn polymers by polymerizing N-vinylcarboxamides and, if desired, other monoethylenically unsaturated monomers copolymerizable therewith with from 0.1 to 10% by weight, based on the monomers used in the polymerization, of a compound containing at least two ethylenically unsaturated non-conjugated double bonds as crosslinking agent, with exclusion of oxygen and polymerization initiators, to form popcorn polymers, and elimination of formyl groups from at least 2% of the copolymerized N-vinylcarboxamides, and the use of the resulting insoluble, only slightly swellable polymers containing amino groups as ion exchangers or adsorber resins for metal ions are described.

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