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nitrogen-containing aliphatic polymer with N-H functionality, possibly alongside ether or alcohol-type C-O bonding

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Номер на резултат: 20250603172018722796718 Собственик: publicuser Коментари: 0
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250603172018722796718 Date: 2025-06-03 15:21:21 Reported by: FTIR.fun Contact: [email protected]

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Top15

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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

nitrogen-containing aliphatic polymer with N-H functionality, possibly alongside ether or alcohol-type C-O bonding

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Conclusion
  1. Top library candidate: Poly(ethylenimine),epichlorohydrin modified.
  2. Library-derived composition clues include N-H, nitrogen, C-N single bonds, and methyl/aliphatic character.
  3. 3294 cm-1 supports hydrogen-bonded N-H and possibly O-H functionality.
Evidence & interpretation
Evidence

Key evidence

Съвпадение по библиотечен водещ
Poly(ethylenimine),epichlorohydrin modified #7725
Limitations

Evidence that limits the conclusion

  • All listed library similarities are effectively 0.000, S-O the retrieval does not provide strong discriminating support for a specific named material.
  • No related-literature match was recovered to narrow the assignment.
  • The spectrum does not show enough uniquely identifying bands to distinguish confidently among amine-containing, alcohol-containing, and ether-containing aliphatic polymers represented in the top candidates.
  • The main uncertainty is whether the 3294 cm-1 band is dominated by N-H, O-H, or a mixture of both.
  • The 1645 cm-1 feature may include contributions from adsorbed water, which limits functional-group specificity.
  • The current evidence does not establish whether epichlorohydrin-derived, poly(vinyl alcohol)-like, or poly(ethylene oxide)-like structural elements are actually present versus only broadly similar in the library.
  • A specific entity-level identification cannot be supported from the present FTIR evidence alone.
Recommendation

Suggested next verification

  • Re-run the FTIR spectrum with improved background correction and drying of the sample to assess whether the 3294 and 1645 cm-1 bands decrease, which would help separate true N-H/O-H functionality from moisture effects.
  • Inspect the 1200-900 cm-1 region at higher spectral quality, since resolving the relative strengths and shapes of the 1226 and 1034 cm-1 bands may help distinguish C-N-rich from C-O-rich polymers.
  • If available, compare against authenticated spectra of Poly(ethylenimine),epichlorohydrin modified, poly(vinyl alcohol), and poly(ethylene oxide) measured under the same conditions.
  • Use a complementary method such as elemental analysis or XPS to test for nitrogen; confirmation of nitrogen would strongly favor the amine-containing polymer direction over oxygen-only candidates such as poly(vinyl alcohol) or poly(ethylene oxide).
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

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Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 1034 1.00 - - - -
2 · 827 0.58 - - - -
3 · 873 0.55 - - - -
4 · 1412 0.53 - - - -
5 · 1226 0.46 - - - -
6 · 1509 0.40 - - - -
7 · 1645 0.39 - - - -
8 · 2922 0.31 - - - -
9 · 3294 0.27 - - - -
10 · 2853 0.22 - - - -
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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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