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sulfur-containing polymer or polymer mixture with possible ether/acetal character

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Niðurstöðunúmer: 20250318163243933289052 Eigandi: publicuser Athugasemdir: 0
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250318163243933289052 Date: 2025-03-18 11:05:11 Reported by: FTIR.fun Contact: [email protected]

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Top15

Similarity-ranked Top-15 library comparison

Choose matching result groups:
Library spectrum will appear here.
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Top 15 candidates

Reference library candidates

Rank Match % Compound Name Formula / SMILES Library preview Action
Reference candidates load with this Top-15 workbench.

Based on the library matches and evidence above.

Conclusion

sulfur-containing polymer or polymer mixture with possible ether/acetal character

General assessment
-
#40754 Initial rank 1 Current rank 1 Library lead match 0.0%
Conclusion
  1. Multiple top library candidates are explicitly polysulfide materials, which supports a broad sulfur-containing material direction.
  2. The top-ranked candidate is Polysulfide polyethylene polyformal polymer, and another leading candidate is Polysulfide crude, mercaptan terminated, indicating recurring sulfur-polymer retrieval behavior.
  3. A band at about 1007 cm-1 is reasonably consistent with C-O single-bond stretching expected in ether/acetal-containing organic polymers.
Main limitation

All listed library similarities are 0.000, so the retrieval does not provide a meaningful quantitative match.

Evidence & interpretation
Evidence

Key evidence

Efsta samsvörun í safni
Polysulfide polyethylene polyformal polymer #40754 | match 0.0%
Efnisstefna
sulfur-containing polymer or polymer mixture with possible ether/acetal character The current FTIR evidence is too limited for a reliable material-level identification. The library top hit is Polysulfide polyethylene polyformal polymer, but all reported library similarities are 0.000 and no direct reference or related-literature evidence confirms that assignment. With only bands at about 728, 774, and 1007 cm-1, the most supportable conclusion is a broad sulfur-containing polymer or polymer mixture, possibly with ether/acetal-type C-O bonding, rather than a specific named polymer.
Support

Evidence supporting the conclusion

Only sample-relevant statements that support the present conclusion are shown here.

  1. The current FTIR evidence is too limited for a reliable material-level identification. The library top hit is Polysulfide polyethylene polyformal polymer, but all reported library similarities are 0.000 and no direct reference or related-literature evidence confirms that assignment. With only bands at about 728, 774, and 1007 cm-1, the most supportable conclusion is a broad sulfur-containing polymer or polymer mixture, possibly with ether/acetal-type C-O bonding, rather than a specific named polymer.
  2. Multiple top library candidates are explicitly polysulfide materials, which supports a broad sulfur-containing material direction.
  3. The top-ranked candidate is Polysulfide polyethylene polyformal polymer, and another leading candidate is Polysulfide crude, mercaptan terminated, indicating recurring sulfur-polymer retrieval behavior.
  4. A band at about 1007 cm-1 is reasonably consistent with C-O single-bond stretching expected in ether/acetal-containing organic polymers.
  5. The observed spectrum contains only a few reported bands, centered near 728, 774, and 1007 cm-1.
  6. The strongest chemistry suggested by the leading library names is sulfur-containing polymeric material, because several top-ranked entries are polysulfide-related.
  7. The band near 1007 cm-1 is compatible with C-O stretching in ether/acetal-type polymers, which is at least qualitatively consistent with the top hit name containing a polyformal component.
  8. The lower-wavenumber bands near 728 and 774 cm-1 fall in a fingerprint region that can arise from skeletal, rocking, or substituted-chain vibrations, but they are not by themselves sufficiently identifying for a specific polymer.
  9. Although some lower-ranked candidates mention nitrogen, heterocycles, chlorine, phosphite, silicate, or nitrile-containing materials, the sample peak list does not provide direct characteristic support for those more specific motifs.
Limitations

Evidence that limits the conclusion

  • All listed library similarities are 0.000, so the retrieval does not provide a meaningful quantitative match.
  • No related-literature evidence is available to narrow the interpretation.
  • The reported peak set lacks characteristic confirming bands needed to defend a specific named material such as a defined polysulfide-polyformal polymer.
  • The top-15 library set is chemically mixed, including silicate, phosphite, amine, and nitrile-containing entries, which weakens confidence in any narrow assignment.
  • It remains unclear whether the sample is a single polymer, a formulated sealant/adhesive system, or a mixture containing inorganic filler.
  • The present peak list does not establish whether sulfur is present as polysulfide linkages, mercaptan end groups, or another sulfur-containing additive.
  • Possible ether/acetal character is suggested mainly by the ~1007 cm-1 band, but that alone is not sufficient to prove a polyformal-type component.
  • Without higher-information bands outside the current peak list, alternative organic polymer directions cannot be excluded.
Recommendation

Suggested next verification

  • 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.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 1007 1.00 - - - -
2 · 774 0.49 - - - -
3 · 728 0.46 - - - -
Appendix

Sample information and raw spectrum

Original uploaded spectrum for reference and verification.

Baseline correction method: Asymmetric Least Squares Smoothing

The wavelength range for analysis(cm-1): [(650, 4000)]

Raw spectrum without baseline correction or other processing:

Sample spectrum image
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