How can you identify polyethylene glycol from FTIR?
This page summarizes the recurring FTIR evidence reported for polyethylene glycol, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 11 cited sources
Quick answer
polyethylene glycol is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Peak interpretation
Possible materials / groups
| Kumpulan berfungsi | Bukti |
|---|---|
| Alkyl C-H | 24 |
| Methacrylate | 15 |
| Hydroxyl (O-H) | 14 |
| C-O single bond | 14 |
| Acetate | 14 |
| Methoxy (OCH3) | 13 |
| Amide | 6 |
| C c single bond | 5 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of polyethylene glycol, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Real-world usage
This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.
Common mistakes
- Calling a material match too early because one famous peak is present.
- Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
- Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.
Verification advice
Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.
Literature behind this page
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polyethylene glycol
Decandio 等 - 2020 - Hybrid Hydrogels Based on Polyethylene Glycol Bioc DOI: 10.21577/0103-5053.20200059 -
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Polyethylene glycol
In vitro drug release characteristic and cytotoxic activity of silibinin-loaded single walled carbon nanotubes functionalized with biocompatible polymers DOI: 10.1186/s13065-016-0228-2 -
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polyethylene glycol
Wang 等 - 2020 - Antiaging Property and Mechanism of Phase-Change A DOI: 10.1155/2020/7598049 -
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polyethylene glycol
Effect of polyethylene glycol and propyltrimethoxysilane on structural and optical properties of zinc oxide nanoparticles synthesized by sol–gel process DOI: 10.1007/s40094-018-0303-2 -
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polyethylene glycol
Tripathy 等 - 2011 - On the intrusion of polyethylene glycol during osm DOI: 10.1680/geolett.11.00016 -
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polyethylene glycol
Polyethylene glycol and poly(vinyl alcohol) hydrogels treated with photo-initiated chemical vapor deposition DOI: 10.1139/cjc-2016-0229 -
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polyethylene glycol
Wei 等 - 2013 - Formation of Protein Complex with the Aid of Polye DOI: 10.1063/1.4858764 -
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polyethylene glycol
Cotton functionalized with polyethylene glycol and graphene oxide for dual thermoregulating and UV-protection applications DOI: 10.1038/s41598-023-31415-z -
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polyethylene glycol
Synthesis and Characterization of Polymer-Based Coatings Modified with Bioactive Ceramic and Bovine Serum Albumin DOI: 10.3390/jfb12020021 -
polyethylene glycol
Fabrication of poly-DL-lactide/polyethylene glycol scaffolds using the gas foaming technique DOI: 10.1016/j.actbio.2011.09.028
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