Table 1.
| 10 DPA Fiber | 37 DPA Fiber | Band Assignment |
|---|---|---|
| 1740 (s) | 1740 (w) | C=O stretching |
| 1620 (s) | HOH bending of adsorbed water + amide I | |
| 1620 (w) | HOH bending of adsorbed water | |
| 1545 (s) | 1545 (w) | Amide II |
| 1425 (w) | 1425 (s) | CH2 scissoring |
| 1405 (s) | 1405 (w) | O–H deformation |
| 1365 (w) | 1365 (s) | C–H bending |
| 1335 (w) | 1335 (s) | CH2 wagging |
| 1315 (w) | 1315 (s) | CH2 wagging |
| 1236 (s) | 1236 (w) | O–H deformation or N–H deformation |
| 1200 (w) | 1200 (s) | C–O stretching |
| 1158 (w) | 1158 (s) | C–O–C stretching |
| 1104 (w) | 1104 (s) | C–O stretching |
| 1055 (w) | 1055 (s) | C–O stretching |
| 1028 (w) | 1028 (s) | C–O stretching |
| 985 (w) | 985 (s) | C–O stretching |
| 895 (w) | 895 (s) | β-glycosidic linkage |
| 662 (w) | 662 (s) | O–H out-of-plane bending |
* Parentheses indicate the relative ATR FT-IR spectral intensities between 10 and 37 DPA fibers: s = strong, w = weak.