How can you identify polyvinylpyrrolidone from FTIR?
This page summarizes the recurring FTIR evidence reported for polyvinylpyrrolidone, 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
polyvinylpyrrolidone 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
| Funktionel gruppe | Bevis |
|---|---|
| Amide | 19 |
| Carbonyl (C=O) | 13 |
| Alkyl C-H | 12 |
| Hydroxyl (O-H) | 10 |
| Carboxyl (COOH) | 9 |
| Methacrylate | 9 |
| Acetate | 9 |
| Ketone | 8 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of polyvinylpyrrolidone, 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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Korepanov 等 - 2022 - Polyvinylpyrrolidone as a Stabilizer in Synthesis DOI: 10.3390/nano12142357 -
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Al-Harbi 等 - 2016 - Adsorption of Polyvinylpyrrolidone over the Silica DOI: 10.1155/2016/2417292 -
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Alibe 等 - 2019 - Effects of polyvinylpyrrolidone on structural and DOI: 10.1007/s10973-018-7874-7 -
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Gencturk 等 - 2020 - Effects of Polyvinylpyrrolidone and Ethyl Cellulos DOI: 10.4274/tjps.galenos.2019.87094 -
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Unique Halloysite Nanotubes–Polyvinyl Alcohol– Polyvinylpyrrolidone Composite Complemented with Physico–Chemical Characterization DOI: 10.3390/polym9060207 -
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Del Prado-Audelo 等 - 2021 - Radiation-induced graft polymerization of elastin DOI: 10.14715/cmb/2021.67.1.10 -
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Biomimetic Growth of Hydroxyapatite on Electrospun CA/PVP Core–Shell Nanofiber Membranes DOI: 10.3390/polym10091032 -
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Immobilization of poly(vinyl pyrrolidone) in Polysulfone Membranes by Radically-Initiated Crosslinking Using Potassium Persulfate DOI: 10.3390/membranes12070664 -
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Ouali 等 - 2021 - Ozone compatibility with polymer nanofiltration me DOI: 10.1016/j.memsci.2011.07.018. -
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Surface-Oxidised Carbon Nanofibre-Based Nanofluids: Structural, Morphological, Stability and Thermal Properties DOI: 10.3390/nano12213922
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