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Swelling behavior of hydrogels with 15 wt% S1200MA (hydrogel 5 with DS 2 and hydrogel 10, DS 5) and 15 wt% S1200SH (hydrogel 15).
| Hydrogel | pH | % Swelling ratio at t = 10 min | % Swelling ratio at t = 100 min | % Swelling ratio at t = 1000 min |
|---|---|---|---|---|
| 5 | 6.5 | 225 ± 18 | 333 ± 10 | 315 ± 22 |
| 10 | 6.5 | 454 ± 20 | 451 ± 11 | 490 ± 10 |
| 15 | 6.5 | 400 ± 16 | 413 ± 8 | 497 ± 15 |
|
| ||||
| 5 | 8.0 | 202 ± 12 | 139 ± 5 | 169 ± 5 |
| 10 | 8.0 | 364 ± 25 | 305 ± 15 | 257 ± 8 |
| 15 | 8.0 | 1111 ± 62 | 1079 ± 71 | 1195 ± 55 |
