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Copolymerized PP

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N.º de resultado: 20260511174100693209014 Propietario: Admin Comentarios: 0
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20260511174100693209014 Date: Reported by: FTIR.fun Contact: [email protected]

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Top 15 candidates

Reference library candidates

Rank Match % Compound Name Formula / SMILES Library preview Action
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Based on the library matches and evidence above.

Conclusion

Copolymerized PP

Entity identified
Confianza general
#713 Initial rank 1 Current rank 1 Library lead match 89.0%
Conclusion
  1. reference library comparison returned Copolymerized PP (#713) at similarity 0.875, closely followed by other polypropylene entries (PP, 0.875; PP, 0.870; Copolypropylene, 0.871), confirming a polypropylene‐based composition.
  2. The reference interpretation notes that the co‐occurrence of these characteristic bands in models for polyolefin and polypropylene‐based polymer classes reinforces a hydrocarbon backbone interpretation.
  3. The strong C-H stretching absorptions at 2950, 2917, 2868, and 2847 cm⁻¹ are consistent with asymmetric and symmetric CH3 and CH2 stretching vibrations typical of aliphatic hydrocarbon backbones in polyolefins.
Main limitation

Direct‑literature evidence returned a wide range of group assignments (e.g., O–Mg–O, Zn–O, tetrahedral sites, Si–O) from sources that are not chemically compatible with the polyolefin material; these reflect the diversity of the literature corpus rather than meaningful spectral evidence for the present sample.

Evidence & interpretation
Evidence

Key evidence

Coincidencia principal de la biblioteca
Copolymerized PP #713 | match 89.0%
Dirección del material
Copolymerized PP (polypropylene copolymer) The sample is identified as Copolymerized PP, a polypropylene copolymer. The observed infrared spectrum matches the library reference spectrum of Copolymerized PP (#713) with high similarity (0.875), and the overall band pattern is characteristic of polyolefin materials containing both methyl and methylene groups.
Supporting peaks
424 cm-1 467 cm-1 537 cm-1 719 cm-1 809 cm-1 841 cm-1 876 cm-1 900 cm-1
Supporting groups
aromatic methyl n_h alkyl_c_h silicon_oxygen c_o_single_bond aliphatic_c_h_stretch ch2/ch3_bending
Support

Evidence supporting the conclusion

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

  1. The sample is identified as Copolymerized PP, a polypropylene copolymer. The observed infrared spectrum matches the library reference spectrum of Copolymerized PP (#713) with high similarity (0.875), and the overall band pattern is characteristic of polyolefin materials containing both methyl and methylene groups.
  2. reference library comparison returned Copolymerized PP (#713) at similarity 0.875, closely followed by other polypropylene entries (PP, 0.875; PP, 0.870; Copolypropylene, 0.871), confirming a polypropylene‐based composition.
  3. The reference interpretation notes that the co‐occurrence of these characteristic bands in models for polyolefin and polypropylene‐based polymer classes reinforces a hydrocarbon backbone interpretation.
  4. The strong C-H stretching absorptions at 2950, 2917, 2868, and 2847 cm⁻¹ are consistent with asymmetric and symmetric CH3 and CH2 stretching vibrations typical of aliphatic hydrocarbon backbones in polyolefins.
  5. The band at 1375 cm⁻¹ is assigned to the symmetric bending of methyl (CH3) groups, a distinctive feature of polypropylene, while the band at 1458 cm⁻¹ corresponds to CH2 and CH3 bending modes.
  6. In the fingerprint region, the cluster of bands at 1166, 1101, 973, 809, and 719 cm⁻¹ matches the spectral pattern observed in polypropylene and copolymerized PP reference spectra, and is analogous to fingerprint variables used in multivariate FTIR models for polyolefin classification (Sciutto et al., 2017).
  7. A peak at approximately 1033 cm⁻¹ can be attributed to C–C skeletal vibrations, which are common in polypropylene backbones.
  8. Major peak assignments include 2917: Related literature: hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene | Direct reference: alkyl c h; c o single bond; 1375: Related literature: hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene | Direct reference: alkyl c h; c o single bond; 2950: Related literature: hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene; 1458: Related literature: hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene | Direct reference: alkyl c h; c o single bond.
Limitations

Evidence that limits the conclusion

  • Direct‑literature evidence returned a wide range of group assignments (e.g., O–Mg–O, Zn–O, tetrahedral sites, Si–O) from sources that are not chemically compatible with the polyolefin material; these reflect the diversity of the literature corpus rather than meaningful spectral evidence for the present sample.
  • The small peak at about 1033 cm⁻¹ could partly reflect minor oxidation or the presence of additives, but it does not undermine the primary identification.
  • The exact comonomer composition (e.g., ethylene content) cannot be inferred from the FTIR spectrum alone without a suitable calibration.
Recommendation

Suggested next verification

  • Perform differential scanning calorimetry (DSC) to confirm the copolymer type (random or block) and to estimate the ethylene/propylene ratio.
  • If further confirmation is required, obtain a ¹³C NMR spectrum to quantify the levels of ethylene incorporation.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 ★ 2917 1.00 Asignación respaldada por literatura La banda en 2917 cm-1 se asigna a alkyl C-H[33]. [33] Confianza de LLM
2 ★ 1375 0.59 Asignación respaldada por literatura La banda en 1375 cm-1 se asigna a alkyl C-H[32]. [32] Confianza de LLM
3 ★ 2950 0.55 Asignación respaldada por literatura La banda en 2950 cm-1 se asigna a alkyl C-H[30]. [30] Confianza de LLM
4 ★ 1458 0.42 Asignación respaldada por literatura La banda en 1458 cm-1 se asigna a alkyl C-H[29]. [29] Confianza de LLM
5 ★ 2847 0.39 Asignación respaldada por literatura La banda en 2847 cm-1 se asigna a alkyl C-H[31]. [31] Confianza de LLM
6 · 2868 0.33 - - - -
7 · 1000 0.18 - - - -
8 ★ 1033 0.17 Asignación respaldada por literatura La banda en 1033 cm-1 se asigna a C-C single bond[34]. [34] Confianza general
9 · 467 0.13 - - - -
10 · 1359 0.13 - - - -
11 ★ 973 0.13 Asignación respaldada por literatura La banda en 973 cm-1 se asigna a alkyl C-H[25]. [25] Confianza general
12 ★ 1101 0.13 Asignación literaria analógica La banda en 1101 cm-1 se asigna a hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene[26][27][28][S3][S4]. [26], [27], [28], [S3], [S4] Confianza general
13 ★ 719 0.11 Asignación respaldada por literatura La banda en 719 cm-1 se asigna a alkyl C-H[35]. [35] Confianza de LLM
14 ★ 1166 0.10 Asignación literaria analógica La banda en 1166 cm-1 se asigna a hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene[26][27][28][S3][S4]. [26], [27], [28], [S3], [S4] Confianza general
15 · 841 0.09 - - - -
16 · 537 0.09 - - - -
17 · 424 0.07 - - - -
18 · 3695 0.06 - - - -
19 ★ 809 0.06 Asignación literaria analógica La banda en 809 cm-1 se asigna a hydrocarbon polymer fingerprint resembling polypropylene / copolypropylene[26][27][28][S3][S4]. [26], [27], [28], [S3], [S4] Confianza general
20 · 900 0.06 - - - -
21 · 1633 0.05 - - - -
22 · 2722 0.04 - - - -
23 · 3155 0.04 - - - -
24 · 876 0.03 - - - -
Literature

References

1798 local KG peak-level literature source(s) kept in the candidate pool; peaks 424, 467, 537, 719, 809, 841; groups (meth)acrylate, 12_membered_rings, 2d_band, =ch_bending_out_of_plane.

No. Title DOI Page
[1] da Silva 等 - 2020 - From Disposal to Reuse Production of Sustainable 10.3390/su122310159 -
[2] Vuong Xuan Bui 等 - 2019 - Investigation of Bioactive Glass-Ceramic 60SiO(2)- 10.1155/2019/1528326 -
[3] Shim 等 - 1998 - Effects of void formation on electrical and optica 10.4028/www.scientific.net/msf.264-268.195 -
[4] Raghav 等 - 2017 - Nonenzymatic glycosylation of human serum albumin 10.1371/journal -
[5] Pro 等 - 2021 - A Spectroscopic Approach to Evaluate the Effects o 10.3390/agriculture11040321 -
[6] Ouadah 等 - 2022 - Optical and photoelectrochemical properties of nit 10.1080/2374068x.2021.1890420 -
[7] Dhayalan 等 - 2021 - Eco friendly synthesis and characterization of zin 10.1515/nanofab-2020-0104 -
[8] Arya 等 - 2018 - Effect of variation of different nanofillers on st 10.1007/s11581-016-1784 -
[9] Arya 和 Sharma - 2018 - Structural, microstructural and electrochemical pr 10.1007/s11581-017-2364-7 -
[10] Ahuja 等 - 2021 - A comparative study on silicon nitride, titanium a 10.1002/mds3.10139 -
[11] Abu-Jdayil 等 - 2022 - Utilization of Polyurethane Foam Dust in Developme 10.3390/buildings12020126 -
[12] Yu 等 - 2018 - Investigation on the Short-Term Aging-Resistance o 10.3390/polym10111189 -
[13] Pusnik Cresnar 等 - 2020 - Effect of Wood Fiber Loading on the Chemical and T 10.3390/app10248863 -
[14] Pulyalina 等 - 2022 - Effect of ionic liquid on formation of copolyimide 10.1038/s41598-022-12377-0 -
[15] Owonubi 等 - 2018 - Characterization and in vitro release kinetics of 10.1007/s40090-018-0139-2 -
[16] Li 等 - 2020 - Investigation of hindered phenol antioxidant effec 10.1038/s41598-020-67131-1 -
[17] Graur 等 - 2023 - Novel Copper(II) Complexes with N-4,S-Diallylisoth 10.3390/inorganics11050195 -
[18] Froehlich 等 - 2013 - Libyan Desert Glass New field and Fourier transfo 10.1111/maps.12223 -
[19] Dubey 和 Dewangan - 2020 - Rational Design and Characterization of Transderma 10.5530/ijper.54.3s.145 -
[20] Chourasiya 等 - 2021 - Formulation, optimization, and characterization of 10.1177/09673911211056154 -
[21] Chaparro 等 - 2023 - Biowaxes from Palm Oil as Promising Candidates for 10.3390/ma16124402 -
[22] Aritonang 等 - 2019 - Grafting of Oleic Acid On Cyclic Natural Rubber Re 10.13005/ojc/350119 -
[23] Aamouche 和 Goormaghtigh - 2008 - FTIR-ATR biosensor based on self-assembled phospho 10.3233/spe-2008-0351 -
[24] Shahzad 等 - 2012 - Effects of drug-polymer dispersions on solubility 10.1007/s11434-012-5094-2 -
[25] Veras 等 - 2019 - Compatibility study of rosmarinic acid with excipi 10.1016/j.jsps.2019.09.010 -
[26] Arya 和 Sharma - 2018 - Structural, microstructural and electrochemical pr 10.1007/s11581-017-2364-7 46
[27] Sciutto 等 - 2017 - A Multivariate Methodological Workflow for the Ana 10.1155/2017/4938145 9
[28] Kert 等 - 2021 - Application of Fragrance Microcapsules onto Cotton 10.3390/coatings11101181 13
[29] Varol 和 Mutlu - 2023 - TGA-FTIR Analysis of Biomass Samples Based on the 10.3390/en16093674 7
[30] Varrica 等 - 2019 - ATR-FTIR Spectral Analysis and Soluble Components 10.3390/ijerph16142507 8
[31] Zhao 等 - 2017 - Assessment of HDPE Aged under DC Voltage Combined - 5
[32] Premalatha 等 - 2017 - Tamarind seed polysaccharide (TSP)-based Li-ion co 10.1007/s11581-017-1989-x 3
[33] Viana 等 - 2012 - Adsorption of Sodium Dodecyl Sulfate on Ge Substra 10.3390/ijms13077980 5
[34] Damastuti 等 - 2023 - High Selectivity Fuel from Efficient CO2 Conversio 10.3390/ma16124314 6
[35] Montenegro 等 - 2023 - Enzymatic and Synthetic Routes of Castor Oil Epoxi 10.3390/polym15112477 6
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): N/A

Raw spectrum without baseline correction or other processing:

Sample spectrum image
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