AMPHIPHILIC POLYELECTROLYTE NETWORKS DERIVED FROM 2-OXAZOLINES

Ionene graft copolymers and networks containing quaternary ammonium gr oups as linkages have been prepared by termination of living mono- and bifunctional poly(2-methyl-2-oxazoline) and poly(2-phenyl-2-oxazoline ) with poly(dimethylaminoethyl methacrylate). Ionene networks of diffe rent density with p,p'-dichloroxylene and poly(2-alkyloxazoline)s as c ross-linkers have been synthesized. The obtained graft and crosslinked copolymers are well defined and with controlled hydrophilic-hydrophob ic balance. Viscosity examination and potentiometric titration of some of the products were carried out. Sorption ability towards Cu2+, Ni2, Mn2+, Fe3+ and anion-exchange capacity were investigated as well. Th e pH dependence of the sorption of metal ions was evaluated. (C) 1998 Elsevier Science Ltd. All rights reserved.