Table 3.
Kinetic parameters of p(NIPAM-co-AA) hydrogel swelling before and after lyophilization at different pH values (3.5 and 8.5) and temperatures (25 and 37 °C).
| Temperature (°C) |
pH | Before Lyophilization | After Lyophilization | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n |
k × 102 (min1/n) |
R 2 |
D × 107 (cm2/min) |
n |
k (min1/n) |
R 2 |
D × 104 (cm2/min) |
||
| 25 | 3.5 | 1.014 | 1.420 | 0.989 | 3.960 | 0.190 | 0.295 | 0.977 | 1.700 |
| 25 | 8.5 | 0.844 | 1.716 | 0.972 | 5.778 | 0.303 | 0.222 | 0.990 | 0.972 |
| 37 | 3.5 | 0.822 | 1.567 | 0.975 | 4.820 | 0.282 | 0.243 | 0.981 | 1.160 |
| 37 | 8.5 | 0.936 | 0.503 | 0.995 | 0.496 | 0.222 | 0.286 | 0.976 | 1.610 |