Superabsorbent Polymer Based on Sodium Carboxymethyl Cellulose Grafted Polyacrylic Acid by Inverse Suspension Polymerization

Figure 4

Effect of initiator (KPS) concentration on swelling capacity (reaction condition: 2.0 g/100 mL NaCMC, 0.8 mol/L AA, 70% neutralized AA, and 0.01 mol/L MBA at 70°C for 90 min).