Gel content (%) and water absorption capacity (%) of PU samples.
| Samples | Gel content (%) | Water absorption capacity (%) | ||||||
|---|---|---|---|---|---|---|---|---|
| 0 h | 1 h | 2 h | 3 h | 4 h | 24 h | 48 h | ||
| HSSO-PU | 99.27 | 0 | 3.9 | 4.09 | 4.09 | 9.42 | 9.71 | 14.94 |
| Or–HSSO-PU | 97.66 | 0 | 0.47 | 1.42 | 4.42 | 3.63a | 7.4a | 5.53a |
| Or-PU | 98.32 | 0 | 3.14 | 5.45 | 6.7 | 7.54 | 10.06 | 15.01 |
Dissolution was observed for a small portion of sample.