查看上面的报告。如果需要后续讨论,请使用下方的评论。
目前的FTIR证据过于有限,无法进行可靠的材料级鉴定。谱库顶级命中是多硫化物聚乙烯聚甲醛聚合物,但所有报告的谱库相似度均为0.000,且没有直接参考文献或相关文献证据确认该分配。仅凭大约728、774和1007 cm-1的谱带,最可支持的结论是一种广泛的含硫聚合物或聚合物混合物,可能具有醚/缩醛型C-O键,而不是特定的命名聚合物。
推荐的后续步骤: Recollect a full FTIR spectrum over the standard mid-IR range and verify whether additional characteristic bands are present, especially in the C-H stretching, carbonyl, and sulfur-related fingerprint regions. Compare the sample directly against authenticated spectra of polysulfide polymer, mercaptan-terminated polysulfide, poly(vinyl formal), and poly(vinyl butyral) to test whether the 1007 cm-1 feature belongs to an ether/acetal polymer backbone. If the material may be a sealant or composite, examine inorganic filler content by ATR-FTIR focusing on silicate bands and confirm with elemental analysis such as XRF or EDS for sulfur, chlorine, silicon, magnesium, and phosphorus. Use Raman spectroscopy or sulfur-sensitive elemental testing to determine whether sulfur-containing chain/linkage chemistry is genuinely present.
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