NIR and Raman spectra of PET (Poly-ethylene terephtalate)
| PET is mainly found in transparent flexible objects like water bottles. The NIR spectra have some similarities with the polystyrene spectra due to aromatic and aliphatic structure.
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| Raman spectrum of PET showing the large aromatic double bond vibration at about 1625 cm-1 and a C=O bond coming from phtalic acid at 1750 cm-1. |
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Below are some examples of the low resolution IR spectra obtained with the Foxboro Filter instrument.
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