Table 1. FTIR Absorption Bands of Pure CTS and Pure PEO Polymers.
| FT-IR peaks
(CTS) |
FT-IR peaks (PEO) |
||
|---|---|---|---|
| λ (cm–1) | assignments | λ (cm–1) | assignments |
| 3443–3360 | O–H stretching vibration | 3400–3380 | O–H stretching vibration |
| 2935, 2890 | CH2 stretching vibration | 2897 | CH2 stretching asymmetric |
| 1623 | C=O stretching of amide | 1461 | CH2 scissoring |
| 1556 | bending energy band: in N–H bond | 1359 | CH2 asym bending |
| 1425 | CH2 stretching vibration | 1242 | CH2 symmetric twisting |
| 1390 | bending vibration of CH2 | (1146, 1110, 1063) | triplet peak of C–O–Cs (semicrystalline-PEO) |
| 1095.1029 | C–O–C, C–O stretching | 963 | out-of-plane rings C–H bending |
| 965, 840 | C–H bending and C–C stretching | 843 | C–C stretching vibrations |
| 655 | small wagging mode of (OH) | ||