aromatic polyurethane
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aromatic polyurethane
Sample & Measurement Parameters
Identification Result
29%The sample spectrum is consistent with an aromatic polyurethane material. The strong carbonyl band at 1726 cm⁻¹ is characteristic of urethane C=O stretching. Aromatic ring vibrations appear at 1604 cm⁻¹ and 1510 cm⁻¹, while ester‑type C–O stretches are observed near 1248 cm⁻¹ and 1063 cm⁻¹. Aliphatic C–H deformation is present at 1158 cm⁻¹. The overall band pattern agrees with a hard‑segment aromatic polyurethane containing urethane, ester/ether, and alkyl moieties FTIR In-Depth Interpretation was not selected for this task, so this section shows the library-search result only and no deep AI interpretation was run.
Library Comparison
Library Search Results — Top 15 Candidates
| Rank | Match % | Compound | Formula / SMILES | Library Preview | Action |
|---|---|---|---|---|---|
| Loading library candidates... | |||||
Peak Analysis
★ = Literature-supported assignment| # | Wavenumber (cm⁻¹) | Absorbance | Assignment | Citation | Confidence | |
|---|---|---|---|---|---|---|
| 1 | · | 1158 | 1.00 | - | - | - |
| 2 | · | 1726 | 0.37 | - | - | - |
| 3 | · | 1248 | 0.32 | - | - | - |
| 4 | · | 1063 | 0.25 | - | - | - |
| 5 | · | 1604 | 0.16 | - | - | - |
| 6 | · | 1510 | 0.11 | - | - | - |
Appendix — Raw Spectrum
Comments and follow-up evidence
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The above shows the FTIR analysis results of a JPG file uploaded by a user from Australia. The original image and extracted CSV file are displayed below.
tem.csv
en&2