Research Article
UV-Initiated Polymerization of Cationic Polyacrylamide: Synthesis, Characterization, and Sludge Dewatering Performance
Table 2
3-Factor Box-Behnken design and the value of response function (
).
| Run order | Coded variables | Intrinsic viscosity (dL·g−1) | | | | Actual value | Predicted value |
| 1 | 0 | 0 | 0 | 1.85 | 1.86 | 2 | +1 | 0 | 1 | 1.93 | 1.86 | 3 | −1 | 0 | 1 | 1.45 | 1.35 | 4 | 0 | −1 | 1 | 1.36 | 1.42 | 5 | +1 | +1 | 0 | 2.03 | 2.00 | 6 | −1 | +1 | 0 | 1.64 | 1.63 | 7 | +1 | 0 | −1 | 0.81 | 0.90 | 8 | 0 | 0 | 0 | 1.85 | 1.86 | 9 | 0 | −1 | −1 | 0.71 | 0.61 | 10 | −1 | 0 | −1 | 0.90 | 0.96 | 11 | 0 | +1 | 1 | 1.95 | 2.04 | 12 | −1 | −1 | 0 | 1.00 | 1.02 | 13 | 0 | 0 | 0 | 1.80 | 1.86 | 14 | 0 | +1 | −1 | 1.57 | 1.86 | 15 | 0 | 0 | 0 | 1.85 | 1.86 | 16 | +1 | −1 | 0 | 1.09 | 1.09 | 17 | 0 | 0 | 0 | 1.95 | 1.86 |
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