Table 1.
FTIR peak assignments of hydrogels.
| FCMCS | 0.2DA-FCMCS | 0.4DA-FCMCS | Peak Assignments |
|---|---|---|---|
| 3337 cm−1, 3182 cm−1 | 3343 cm−1, 3188cm−1 | 3336 cm−1, 3190 cm−1 | –OH and NH2 stretching vibrations |
| 1649 cm−1, and 1604 cm−1 | 1649 cm−1, and 1604 cm−1 | 1649 cm−1, and 1604 cm−1 | C=O stretching and N-H deformations associated with –COO− asymmetric stretching vibrations |
| 1311 cm−1 | 1311 cm−1 | 1312 cm−1 | –CH3 groups from CMCS |
| 1411 cm−1 | 1411 cm−1 | 1411 cm−1 | C-N stretching vibrations |
| - | 1256 cm−1 | 1256 cm−1 | C-N stretching of phenyl groups |