Research Article
Synthesis and Characterization of Chemically Cross-Linked Acrylic Acid/Gelatin Hydrogels: Effect of pH and Composition on Swelling and Drug Release
Table 4
Sol-gel fraction analysis and porosity measurement of different formulations of AA/Gelatin hydrogels.
| Sample codes
| Degree of cross-linking (EGDMA) % W/W | Gel fraction (%) | Sol fraction (%) | Porosity (%) |
| U1 | 0.70 | 84.44 | 15.56 | 44.07 | U2 | 0.70 | 86.59 | 13.41 | 56.81 | U3 | 0.70 | 90.22 | 9.78 | 62.09 | U4 | 0.70 | 87.12 | 12.88 | 46.43 | U5 | 0.70 | 90.23 | 9.77 | 57.47 | U6 | 0.70 | 94.54 | 5.46 | 63.72 | U7 | 0.65 | 85.64 | 14.36 | 69.03 | U8 | 0.75 | 89.09 | 10.91 | 65.32 | U9 | 0.85 | 95.23 | 4.77 | 62.30 |
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