New DADMAC-based macromolecular architectures have been prepared, varying the permanent charge distribution in the polycation structure. DADMAC and PEG-containing block copolymers with (AB)n and ABCBA structures were synthesized via condensation together with thermal and redox radical polymerization. Polymers with a randomly reduced charge density were, on the other hand, obtained via polymer-analogous reactions based on the dequaternarization of the ammonium groups.
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Tirelli et al. (1999) studied this question.