Research Article

Effect of Grafted Hydroquinone on the Acid-Base Properties of Poly(acrylic acid) in the Presence of Copper (II)

Figure 5

Plots of for PAA/Cu(II) and HQ-PAA/Cu(II). [NaNO3] = 0.00 mol/L. The curve in blue square is for tetrahydroxybenzene-polyacrylic acid (THB-PAA) in the presence of copper (II) [5].