Research Article
Cure Kinetics of an Optical Polythiourethane with Amine Catalyst by IR Analysis
Table 1
Principal peak assignments in the FTIR spectra of BES, XDI, PSUo, and cured PSU.
| | Observed peaks (cm-1) | Peak assignments |
| | 3510–3100 | -NH stretching vibrations | | 2920 | -CH2 stretching vibration | | 2540 | -SH stretching vibration | | 2260 | -NCO stretching vibration | | 1673 | -C=O stretching vibration of PSU |
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