Complexation behavior of polyelectolyte/polyelectolyte at weak neutralization degree: Study by several techniques

L. Tennouga & A. Mansri
The complexation of hydrolyzed polyacrylamide (AD37) and poly(4-vinylpyridine) (P4VP) in aqueous solution at 25 °C was studied by viscosity, conductivity and potentiometry measurements. The result shows, that intermolecular electrostatic association are favored by increasing the P4VP concentration. Thus, mixtures rich in P4VP are characterized by a high decrease in the viscosity due to interpolymer complete complexation AD37-P4VP, leading to the totally contraction or collapse of the polymer chains. So, strongest reduced viscosities, due to the...
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