Abstract
The mechanical and thermodynamic properties of poly(acrylic acid-co-methyl methacrylate) hydrogels with varying ratios of AA/MMA are reported. Swelling capacity increases but elasticity decreases as the content of AA in the hydrogels increases. Thermodynamic analysis indicates that swelling is an unfavorable (ΔḠ1 > 0) and endothermic (ΔH̄1 > 0) process. Both thermodynamic quantities increase with increasing hydrophobic nature of the hydrogel. The amount of freezing and non-freezing water in the hydrogels was determined by DSC. The ratio of non freezing to total water content increases with the increasing hydrophobic nature of the hydrogels.
| Original language | English |
|---|---|
| Pages (from-to) | 307-321 |
| Number of pages | 15 |
| Journal | Journal of Macromolecular Science, Part A: Pure and Applied Chemistry |
| Volume | 37 A |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2000 |
| Externally published | Yes |
Keywords
- Freezing Water
- Hydrogel
- Hydrophobic
- Hydrophylic
- Mechanical Properties
- Swelling
- Thermodynamic Properties
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