Complex formation of polyvinyl ether of diethylene glycol with polyacrylic acid II. Effect of molecular weight of polyacrylic acid and solvent nature

In the present work the complexation between polyvinyl ether of diethylene glycol and polyacrylic acid of different molecular weights has been studied in aqueous and isopropanol solutions. It was found that the polyacrylic acid with molecular weight 2000 does not form interpolymer complexes. The stability of polycomplexes in respect to addition of different solvents was evaluated. It was shown that depending on the nature of polymers the interpolymer complexes may be more or less stable in aqueous solutions than in organic ones.