查看上面的报告。如果需要后续讨论,请使用下方的评论。
当前的FTIR结果不支持明确的材料鉴定。谱库最高命中是环氧氯丙烷改性聚乙烯亚胺,但所有报告的谱库相似度均为0.000,且没有直接或相关的文献证据独立确认该特定聚合物。观察到的谱带表明含杂原子的有机材料,在3280 cm-1附近有宽的O-H或N-H伸缩,2922和2853 cm-1处有脂肪族C-H伸缩,1635 cm-1附近的谱带与不饱和度、芳环/环振动或H-O-H弯曲一致,以及指纹区1246和1086 cm-1处与C-O和/或C-N型键合的强吸收。826和873 cm-1处的谱带提示取代环或面外变形特征。由于前15个谱库模式化学上混合,且没有鉴定谱带组能可靠地锚定特定聚合物,最可辩护的结论是更广泛的含杂原子有机材料方向,而非实体级归属
推荐的后续步骤: Acquire a higher-quality repeat FTIR spectrum with baseline correction and stronger signal in the 1800-600 cm-1 region to refine the fingerprint assignment. Check whether the 3280 and 1635 cm-1 bands decrease after drying; that would help determine whether adsorbed water is contributing to those features. Compare the sample directly against authenticated spectra of Poly(ethylenimine), poly(ethylene oxide), and epichlorohydrin-modified polyamine materials, since these are among the nearest library directions. Use complementary elemental analysis or EDS/XPS to test for sulfur, chlorine, and silicon, which would quickly exclude several of the chemically diverse library candidates.
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