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

Table 2

Stability constants of copper- (II-) complexed materials.

Copper- (II-) complexed polymer	[NaNO3] (mol/L)
PAA/Cu(II)	0.00	10.43 (6.3–6.9)^*
	0.01	9.84
HQ-PAA/Cu(II)	0.00	13.20
	0.01	10.86

Reference [21] (ionic strength of 0.1 mol/L and molecular weight of = 3 × 10⁶ g/mol).