abstract |
The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) n n n n n n n n n n as functional group, wheren R 1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R 2 is —CH 2 —S—CH 2 COOR 3 or —CH 2 —S—C 1 -C 4 -alkyl or —CH 2 —S—CH 2 CH(NH 2 )COOR 3 or —CH 2 —S—CH 2 —CH(OH)—CH 2 (OH) or nn n n n n n n n n n or derivatives thereof or —C═S(NH 2 ), n R 3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating. |