Picolylamine resins

Process for preparing monodisperse, macroporous or gel-type picolylamine resins bearing tertiary nitrogen atoms in structures of the general formula (I)

• as functional group,
• where R1, R2, R3, M, m, n and p are as defined above, characterized in that
• a) monomer droplets of a mixture of a monovinylaromatic compound, a polyvinylaromatic compound and/or a (meth)acrylic compound, an initiator or an initiator combination and optionally a porogen are reacted to form a monodisperse crosslinked bead polymer,
• b) the monodisperse bead polymer obtained is functionalized with primary amino groups,
• c) the functionalized, monodisperse bead polymer containing amine groups is reacted with halomethyl nitrogen heterocycles to form bead polymers which have basic, anion-exchanging groups and contain methyl nitrogen heterocycles and
• d) the monodisperse bead polymer containing methyl nitrogen heterocycles obtained in process step c) is reacted with chlorocarboxylic acid or salts thereof.