FTIR.fun FTIR.fun Làm cho phân tích FTIR dễ dàng hơn
TRANG KẾT QUẢ

oxygenated polymer with hydroxyl and carbonyl functionality, possibly containing aromatic or heteroatom-substituted vinyl polymer features

Xem báo cáo ở trên. Sử dụng các bình luận bên dưới nếu cần thảo luận thêm.

Số kết quả: 20250505153349298376737 Chủ sở hữu: Kamila Bình luận: 0
  • Translating report into Tiếng Việt. English is shown for now.
FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250505153349298376737 Date: 2025-05-06 03:19:15 Reported by: FTIR.fun Contact: [email protected]

Download a professional, formatted PDF of this analysis.

Top15

Similarity-ranked Top-15 library comparison

Choose matching result groups:
Library spectrum will appear here.
Library spectrum Interactive sample curve Move the pointer to show the vertical guide line.
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

oxygenated polymer with hydroxyl and carbonyl functionality, possibly containing aromatic or heteroatom-substituted vinyl polymer features

General assessment
-
#33937 Initial rank 1 Current rank 1 Library lead match 0.0%
Conclusion
  1. Observed bands at 3408 and 1728 cm-1 support hydroxyl and carbonyl functionality in the sample.
  2. Bands at 1285, 1095, and 1004 cm-1 support C-O-containing polymer chemistry.
  3. The library candidate set contains several oxygen-rich polymer references, which aligns better with the observed spectrum than a purely hydrocarbon material would.
Main limitation

The leading library hit has zero reported similarity and low confidence, so it is not strong positive evidence for a specific entity assignment.

Evidence & interpretation
Evidence

Key evidence

Kết quả khớp hàng đầu từ thư viện
Poly(vinylbenzylammonium chloride) #33937 | match 0.0%
Hướng vật liệu
oxygenated polymer with hydroxyl and carbonyl functionality, possibly containing aromatic or heteroatom-substituted vinyl polymer features The current FTIR evidence does not securely identify the sample as Poly(vinylbenzylammonium chloride), because the library match is low-confidence and no direct or related literature source independently supports that assignment. The observed spectrum is more defensibly described as an oxygenated polymeric material showing a broad O-H band, an ester or acid-like carbonyl band, aliphatic C-H stretching, and multiple fingerprint-region bands consistent with C-O-containing polymer structures. A narrower assignment to a specific ammonium-containing polymer is not chemically secure from the present evidence alone.
Support

Evidence supporting the conclusion

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

  1. The current FTIR evidence does not securely identify the sample as Poly(vinylbenzylammonium chloride), because the library match is low-confidence and no direct or related literature source independently supports that assignment. The observed spectrum is more defensibly described as an oxygenated polymeric material showing a broad O-H band, an ester or acid-like carbonyl band, aliphatic C-H stretching, and multiple fingerprint-region bands consistent with C-O-containing polymer structures. A narrower assignment to a specific ammonium-containing polymer is not chemically secure from the present evidence alone.
  2. Observed bands at 3408 and 1728 cm-1 support hydroxyl and carbonyl functionality in the sample.
  3. Bands at 1285, 1095, and 1004 cm-1 support C-O-containing polymer chemistry.
  4. The library candidate set contains several oxygen-rich polymer references, which aligns better with the observed spectrum than a purely hydrocarbon material would.
  5. Bands below 900 cm-1 could be compatible with aromatic substitution or other fingerprint-region structural detail, so aromatic or substituted vinyl polymer character remains plausible.
  6. The sample shows a broad band near 3408 cm-1 consistent with hydroxyl-containing material or absorbed water.
  7. A strong band at 1728 cm-1 supports a carbonyl-containing functionality such as ester, carboxylic acid, or related oxygenated polymer motif.
  8. Bands near 1285, 1095, and 1004 cm-1 are consistent with C-O stretching contributions often seen in oxygenated polymers.
  9. The 2926 cm-1 band supports aliphatic C-H stretching.
  10. Fingerprint-region bands at 739, 791, 870, and 940 cm-1 may reflect substitution pattern, out-of-plane bending, or backbone-related modes, but they are not sufficient here for a secure specific polymer identification.
  11. The Top-15 library pattern is chemically mixed but repeatedly includes oxygenated polymers such as poly(acrylic acid), poly(vinyl alcohol), poly(vinyl butyral), and maleic-acid or anhydride-containing copolymers, which is broadly consistent with the observed O-H, C=O, and C-O features.
Limitations

Evidence that limits the conclusion

  • The leading library hit has zero reported similarity and low confidence, so it is not strong positive evidence for a specific entity assignment.
  • The spectrum does not show clear identifying evidence here for a quaternary ammonium-containing aromatic polymer specifically; the provided peak set is more strongly dominated by generic O-H, C=O, and C-O features.
  • The Top-15 library list is internally heterogeneous, including poly(acrylic acid), poly(vinyl alcohol), poly(vinyl butyral), maleic copolymers, and polychloroprene, which limits confidence in any narrow material call.
  • The carbonyl band at 1728 cm-1 does not by itself distinguish ester from carboxylic acid or related oxygenated polymer environments.
  • The broad 3408 cm-1 feature may arise from intrinsic hydroxyl groups, water uptake, or both.
  • The current evidence does not cleanly establish whether aromatic, ammonium, sulfonyl, or anhydride-specific functionality is truly present.
  • A specific polymer identity remains uncertain because the retrieval quality is weak and the literature evidence is absent.
Recommendation

Suggested next verification

  • Recollect the FTIR spectrum with improved signal quality and baseline control, ideally including the full 4000-400 cm-1 range and relative band intensities.
  • Check specifically for confirming bands that would separate carboxylic acid, ester, anhydride, and alcohol-rich polymers, especially in the 1800-1500 and 1300-900 cm-1 regions.
  • If Poly(vinylbenzylammonium chloride) remains of interest, look for independent evidence of aromatic ring modes and ammonium-associated features using a higher-quality spectrum and comparison to an authenticated reference.
  • Complement FTIR with Raman, elemental analysis, or XPS to test for nitrogen and possible counterion content; this would help confirm or reject an ammonium-containing polymer assignment.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 870 0.97 - - - -
2 · 940 0.79 - - - -
3 · 791 0.79 - - - -
4 · 1407 0.79 - - - -
5 · 739 0.78 - - - -
6 · 1004 0.74 - - - -
7 · 1095 0.64 - - - -
8 · 1285 0.35 - - - -
9 · 3408 0.26 - - - -
10 · 2926 0.24 - - - -
11 · 1728 0.20 - - - -
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
Thảo luận

Bình luận và bằng chứng tiếp theo

Sử dụng khu vực này để tiếp tục giải thích, đặt câu hỏi hoặc thêm bằng chứng xác minh bổ sung.

  • Trang 1 của 1
Trả lời
CHỦ ĐỀ LIÊN QUAN

Các phân tích khác trong danh mục này

Gửi Yêu cầu Biểu mẫu