How can you identify poly(vinyl alcohol) from FTIR?
This page summarizes the recurring FTIR evidence reported for poly(vinyl alcohol), 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 15 cited sources
Quick answer
poly(vinyl alcohol) 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
| Функциональная группа | Доказательства |
|---|---|
| Acetate | 24 |
| Methacrylate | 23 |
| Alkyl C-H | 18 |
| C-O single bond | 18 |
| Methoxy (OCH3) | 17 |
| Hydroxyl (O-H) | 11 |
| Carbonyl (C=O) | 9 |
| Carboxyl (COOH) | 8 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of poly(vinyl alcohol), 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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poly(vinyl alcohol)
Idris 等 - 2021 - Oxygen Barrier Performance of Poly(vinyl alcohol) DOI: 10.3390/coatings11101253 -
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poly(vinyl alcohol)
Polyethylene glycol and poly(vinyl alcohol) hydrogels treated with photo-initiated chemical vapor deposition DOI: 10.1139/cjc-2016-0229 -
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poly(vinyl alcohol)
Miscibility Studies of Hyaluronic Acid and Poly(Vinyl Alcohol) Blends in Various Solvents DOI: 10.3390/ma13214750 -
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poly(vinyl alcohol)
Structural, thermal and electrical properties of PVA–LiCF3SO3 polymer electrolyte DOI: 10.1016/j.jnoncrysol.2010.08.011 -
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poly(vinyl alcohol)
Yang 和 Xiao - 2020 - A graft copolymer composed of continuously linked DOI: 10.1016/j.matlet.2020.128345 -
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poly(vinyl alcohol)
Physical Hydrogels of Oxidized Polysaccharides and Poly(Vinyl Alcohol) for Wound Dressing Applications DOI: 10.3390/ma12091569 -
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poly(vinyl alcohol)
Organic-Inorganic Novel Green Cation Exchange Membranes for Direct Methanol Fuel Cells DOI: 10.3390/en14154686 -
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poly(vinyl alcohol)
Sharma 等 - 2015 - Evaluating the potential of chitosanpoly(vinyl al DOI: 10.1515/epoly-2015-0021 -
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Poly(vinyl alcohol)
Synthesis and characterization of poly(vinyl alcohol)/water glass (SiO2) nano-hybrids via sol-gel process DOI: 10.1002/app.32258 -
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poly(vinyl alcohol)
Li 等 - 2020 - The Impact of Reactive Ionic Liquids Addition on t DOI: 10.3390/polym12091958
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