How can you identify polysulfone from FTIR?
This page summarizes the recurring FTIR evidence reported for polysulfone, 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 14 cited sources
Quick answer
polysulfone 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 | 19 |
| Methacrylate | 15 |
| Acetate | 15 |
| Aromatic ring | 12 |
| Silicon-oxygen (Si-O) | 11 |
| C-O single bond | 11 |
| Amide | 11 |
| Methoxy (OCH3) | 9 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of polysulfone, 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
polysulfone
Membranas de polisulfona/argila: influência de diferentes argilas na propriedade de barreira DOI: 10.1590/S1517-707620170001.0317 -
confidence 2.5
polysulfone
A study of different concentrations of bio-silver nanoparticles in polysulfone mixed matrix membranes in water separation performance DOI: 10.1016/j.jwpe.2020.101575 -
confidence 2.5
Polysulfone
Impact of Silver-Decorated Graphene Oxide (Ag-GO) towards Improving the Characteristics of Nanohybrid Polysulfone Membranes DOI: 10.3390/membranes13060602 -
confidence 2.5
Polysulfone
A Composite Membrane of Caesium Salt of Heteropolyacids/Quaternary Diazabicyclo-Octane Polysulfone with Poly (Tetrafluoroethylene) for Intermediate Temperature Fuel Cells DOI: 10.3390/membranes2030384 -
confidence 2.5
Polysulfone
Synthesis and Characterization of Polysulfone (PSU)/Philippine Halloysite (PH-HAL) Nanostructured Membrane via Electrospinning DOI: 10.1051/matecconf/201821303001 -
confidence 2.5
polysulfone
Araujo 等 - 2021 - Membranes of polysulfone and hybrid applied in dye DOI: 10.5004/dwt.2021.27412 -
confidence 2.5
Polysulfone
Functionalized KIT-6/Polysulfone Mixed Matrix Membranes for Enhanced CO2/CH4 Gas Separation DOI: 10.3390/polym12102312 -
confidence 2.5
polysulfone
Preparation of modified polysulfone material decorated by sulfonated citric chitosan for haemodialysis and its haemocompatibility DOI: 10.1098/rsos.210462 -
confidence 2.5
Polysulfone
One-Step Preparation of Antifouling Polysulfone Ultrafiltration Membranes via Modification by a Cationic Polyelectrolyte Based on Polyacrylamide DOI: 10.3390/polym12051017 -
confidence 1.7
Polysulfone
A new approach for the functionalisation of polysulfone with <i>β</i>-cyclodextrin DOI: 10.1088/2053-1591/ab35f3
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