Piperazine-based homo- and copolymers containing trivalent and quaternary nitrogen functionalities

Abstract

The synthesis and solution properties of poly(1,1-diallyl-4-hydropiperazine dichloride) [poly(DAHPD)] (3), a dicationic polymer, and poly(1,1-diallylpiperazinium chloride), [poly(DAPC)] (4), a bifunctional polymer with trivalent and quaternary nitrogens, and their corresponding copolymers with sulfur dioxide, poly (DAHPD-SO2) (6) and poly(DAPC-SO2) (7), are discussed. Dicationic polymers (3) and (6) were found to have less pronounced polyelectrolyte effects than their monocationic counterparts (4) and (7). © 1998 John Wiley & Sons, Inc.