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最近的谱库名称是聚乙二醇甲醚,但匹配质量非常弱,无法支持确定的化合物级分配。观察到的FTIR图谱更安全地描述为含氧脂肪族醚材料,具有甲基取代的聚醚特征,基于强的富C-O指纹区和主要脂肪族C-H特征。将聚乙二醇甲醚的狭窄分配受到缺乏更强佐证参考证据以及存在1728 cm-1波段的限制,该波段表明存在额外的含羰基组分或改性,不能仅由简单的聚醚解释。
推荐的后续步骤: Re-examine the sample for the presence and intensity of a broad O-H band in the 3200-3600 cm-1 region to distinguish hydroxyl-terminated polyether material from a fully etherified analogue. Check for additional carbonyl-associated bands near 1170-1300 cm-1 and 1735-1750 cm-1 to determine whether an ester-containing additive or oxidation product is present. Compare against authenticated FTIR references for Poly(ethylene glycol methyl ether), Poly(ethylene oxide), and common esterified polyether materials under the same sampling conditions. Use complementary GC-MS or LC-MS for lower-molecular-weight material, or NMR if feasible, to verify whether the sample is a single methyl-terminated polyether or a carbonyl-containing mixture.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
|---|---|---|---|---|---|
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