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當前的FTIR證據不支持確定的材料識別。最近的譜庫匹配是聚硫聚乙烯聚甲醛聚合物,但匹配質量實際上無區分性,樣品僅顯示三個報告的條帶:728、774和1007 cm-1。這些條帶與含硫有機聚合物材料相容,也可能與1007 cm-1區域的醚或縮醛型C-O伸縮一致,但現有證據過於有限,無法證明特定的聚合物歸屬。
建議的下一步: Reacquire the FTIR spectrum over the full mid-IR range with a good signal-to-noise ratio and report all major bands, especially 4000-1200 cm-1 as well as the full fingerprint region. Check specifically for characteristic bands that would strengthen or reject the current direction: C-H stretches near 2850-2960 cm-1, O-H near 3200-3600 cm-1, carbonyl near 1650-1750 cm-1, and additional C-O/C-O-C bands in the 900-1200 cm-1 region. Inspect the 600-700 cm-1 region for stronger sulfur-related skeletal features and the 1000-1150 cm-1 region for a fuller ether/acetal pattern. If the sample may be formulated, use complementary methods such as Raman spectroscopy, SEM-EDS for sulfur and inorganic fillers, and if possible pyrolysis-GC/MS to separate polymer-binder and additive contributions.
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