How can you identify membrane from FTIR?
This page summarizes the recurring FTIR evidence reported for membrane, 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
membrane 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
| Grupo funcional | Evidencia |
|---|---|
| Alkyl C-H | 8 |
| Hydroxyl (O-H) | 5 |
| Amide | 5 |
| N h | 4 |
| Acetate | 3 |
| Aromatic ring | 3 |
| Methoxy (OCH3) | 2 |
| Methacrylate | 2 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of membrane, 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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Fernandes 等 - 2018 - Membranes of polysulfoneclay influence of differ DOI: 10.1590/S1517-707620170001.0317 -
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A Comparison of the Effect of Cellulose Nanocrystals (CNCs) and Polyethylene Glycol (PEG) as Additives in Ultrafiltration Membranes (PES-UF): Characterization and Performance DOI: 10.3390/polym15122636 -
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The influences of polydopamine immersion time on characteristics and performance of polyvinylidene fluoride ultrafiltration membrane DOI: 10.1051/matecconf/201819709007 -
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Dainese 等 - 2012 - Impact of Embedded Endocannabinoids and Their Oxyg DOI: 10.1021/cn300016c -
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Gercel 等 - 2016 - Polymer Electrolyte Membrane Fuel Cell Performance DOI: 10.1155/2016/6123213 -
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Microstructure and Characteristic of BiVO4 Prepared under Different pH Values: Photocatalytic Efficiency and Antibacterial Activity DOI: 10.3390/ma9030129 -
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Performance on Bone Regeneration of a Silver Nanoparticle Delivery System Based on Natural Rubber Membrane NRL-AgNP DOI: 10.3390/coatings10040323 -
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Investigation of mercury (II) and copper (II) sorption in single and binary systems by alginate/polyethylenimine membranes DOI: 10.1016/j.carbpol.2020.117588 -
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Benavente 等 - 2016 - FTIR mapping as a simple and powerful approach to DOI: 10.1016/j.memsci.2016.07.061 -
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Development and Demonstration of Membrane to Control Potential Pathogen (Legionella sp.) Associated With Cooling Towers DOI: 10.3389/fenvs.2020.570904
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