Functionalised polyglycine-poly(alkylene imine)-copolymers, the preparation thereof and use thereof for preparing formulations of or for complexing anionic active ingredients and effect substances

Copolymers containing 5 to 75 mol % of structural units of the formula (I), 5 to 75 mol % of structural units of the formula (II) and 20 to 90 mol % of structural units of the formula (III)

• —NR1—CHR3—CHR4- (I),
• —NH—CO—CHR7- (II),
• —NH—CHR9—CHR10- (III),
• or
• copolymers containing 5 to 75 mol % of structural units of the formula (IV), 5 to 75 mol % of structural units of the formula (V) and 20 to 90 mol % of structural units of the formula (VI)
• —NR1—CHR3—CHR4—CHR5- (IV),
• —NH—CO—CHR7—CHR8- (V),
• —NH—CHR9—CHR10—CHR11- (VI),
• wherein
• R1 is a radical of the formula —CO—R2, of the formula —CO—NH—R2, of the formula —CH2—CH(OH)—R12 or of the formula —CH2—CH(NH2)—R12,
• R3, R4, R5, R7, R8, R9, R10 and R11 independently of one another are hydrogen, methyl, ethyl, propyl or butyl,
• R2 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, aralkyl, —CmH2m—X or —(CnH2n—O)o—(CpH2p—O)q—R6,
• R6 is hydrogen or C1-C6 alkyl,
• R12 is selected from the group consisting of hydrogen, alkyl, alkenyl, cycloalkyl, aryl or aralkyl,
• X is selected from the group consisting of hydroxyl, alkoxy, amino, N-alkylamino, N,N-dialkylamino, heterocyclyl having at least one ring nitrogen atom, guanidino, carboxyl, carboxylic acid ester, sulfuric acid ester, sulfonic acid ester or carbamic acid ester,
• m is an integer from 1 to 18,
• n and p independently of one another are integers from 2 to 4, where n is not equal to p, and
• o and q independently of one another are integers from 0 to 60, at least one of o or q not being equal to 0, the percentages being based on the total amount of the structural units of the formula (I), (II) and (III) or of the formula (IV), (V) and (VI).