Interpolymer complexes of acrylic acid and vinylbutyl ether copolymers with non-ionic and cationic polymers

Copolymers of acrylic acid and vinylbutyl ether AA/VBE) have been involved in complexation reactions with non-ionic poly-N-vinylpyrrolidone (PVP), pol yethylene glycol (PEG) and cationic poly-N-methyl-4-vinylethynylpiperidinol -4 (PVEP) and polyvinyl ether of monoethanolamine (PVEMEA) polymers. Interp olymer complexes (IPC) are stabilized due to the formation of either cooper ative system of hydrogen or ionic bonds depending on the nature of interact ing macromolecular components. The stoichiometry of IPC was determined by e lectrochemical methods. The stability of IPC depends on thermodynamic quali ty of the solvents, temperature, and degree of ionization. The permeability of IPC membranes with respect to urea was studied. Copyright (C) 2000 John Wiley & Sons, Ltd.