Table 4. Effect of MBA Changes on the Swelling Percentage of PPG Samples in the CaCl2·2H2O Salt Solution.
| sample | AAm/AA (mole ratio) | MBA (mol %) | swelling time (min) | swelling (%) |
|---|---|---|---|---|
| 4 | 4.82 | 6 | 180 | 419 |
| 5 | 4.82 | 14 | 180 | 362 |
| 6 | 4.82 | 18 | 180 | 251 |
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