How can you identify polyvinyl alcohol from FTIR?
This page summarizes the recurring FTIR evidence reported for polyvinyl 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 13 cited sources
Quick answer
polyvinyl 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
| Functional group | Evidence |
|---|---|
| Alkyl C-H | 23 |
| Methacrylate | 21 |
| Acetate | 21 |
| Hydroxyl (O-H) | 16 |
| C-O single bond | 15 |
| Amide | 15 |
| Methoxy (OCH3) | 13 |
| Carboxyl (COOH) | 10 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of polyvinyl 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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confidence 4.0
polyvinyl alcohol
The first demonstration of a novel isolated fungus <i>Eutypella</i> sp. BJ associated with the biodegradation of polyvinyl alcohol DOI: 10.1039/c9ra04410h -
confidence 4.0
polyvinyl alcohol
Preparation of high molecular weight polyvinyl alcohol by emulsifier-free emulsion polymerization DOI: 10.1051/e3sconf/202020602023 -
confidence 4.0
polyvinyl alcohol
Koysuren - 2018 - Solid-Phase Photocatalytic Degradation of Polyviny DOI: 10.3390/catal8110499 -
confidence 4.0
polyvinyl alcohol
Preparation and Physicochemical Characterization of a Diclofenac Sodium-Dual Layer Polyvinyl Alcohol Patch DOI: 10.3390/polym13152459 -
confidence 4.0
polyvinyl alcohol
Ferric Ions Modified Polyvinyl Alcohol for Enhanced Molecular Structure and Mechanical Performance DOI: 10.3390/ma13061412 -
confidence 4.0
polyvinyl alcohol
Voriconazole Composited Polyvinyl Alcohol/Hydroxypropyl-β-Cyclodextrin Nanofibers for Ophthalmic Delivery DOI: 10.1371/journal.pone.0167961 -
confidence 2.5
polyvinyl alcohol
Sprayed in-situ synthesis of polyvinyl alcohol/chitosan loaded silver nanocomposite hydrogel for improved antibacterial effects DOI: 10.1016/j.ijbiomac.2019.09.186 -
confidence 2.5
polyvinyl alcohol
Development of polyvinyl alcohol and apple pomace bio-composite film with antioxidant properties for active food packaging application DOI: 10.1007/s13197-015-2104-9 -
confidence 0.7
polyvinyl alcohol
Design of Asymmetric Nanofibers-Membranes Based on Polyvinyl Alcohol and Wool-Keratin for Wound Healing Applications DOI: 10.3390/jfb12040076 -
confidence 0.6
polyvinyl alcohol
Radiation Synthesis of Edible Coating Films of Nanocurcumin Based on Carboxymethyl Chitosan/Polyvinyl Alcohol to Extend the Shelf Life of Sweet Orange "Valencia" DOI: 10.1007/s10924-023-02854-6
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