Separating materials

摘要

The invention is directed to separating materials comprising a primary or secondary aliphatic hydroxyl group-containing support coated with at least one covalently bonded polymer, wherein (1) the covalently bonded polymers are bonded to the support by graft polymerization via the alpha -carbon atoms of the hydroxyl groups, and (2) the polymer contains identical or different recurring units of the formula I I wherein R1 is H or CH3; Y is R' and R'' are each independently H or CH3, R2 and R3 are each independently (a) C1-10-alkyl, phenyl, phenyl-C1-10-alkyl, cycloalkyl, C1-10-alkyl-cycloalkyl or C1-10-alkylphenyl, (b) one of the above groups in (a) monosubstituted or polysubstituted by each of amino, mono- or dialkylamino, trialkylammonium, carboxyl, or sulfonyl, (c) a cyclic or bicyclic radical having 5-10 C atoms, wherein one or more CH or CH2 groups is replaced by (i) N or NH, (ii) N or NH and S, or (iii) N or NH and O, or (d) one of R2 or R3 is H; and wherein R2 and R3 are coordinated with one another so that either both radicals are acidic or basic, or one of the radicals is neutral and one is acidic or basic, x is 2 to 100, and R4 is C1-10-alkyl, phenyl, phenyl-C1-10-alkyl, cycloalkyl or C1-10-alkyl-cycloalkyl, or C1-10-cyclophenyl, each monosubstituted or polysubstituted by carboxyl or sulfonyl.