“…A considerable attention to the influence exerted by the pH value on the magnitude of the Toms effect has been given by Makogon, Klenin, and Povkh [45,58,59,67]. They carried out a comparative study of the structure and thermodynamic activity of aqueous PAA solutions with different degrees of hydrolysis and various pH values and noted that the viscosity numbers of nonhydrolyzed PAA remained virtually unchanged in the pH range 2310.…”