How can you identify polyethersulfone from FTIR?

Quick answer

polyethersulfone 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

Spectrum logic

The logic here is evidence aggregation: repeated literature mentions of polyethersulfone, 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

• confidence 2.5

  polyethersulfone

  Nanocellulose-silica polyethersulfone hybrid composite stabilized lipase for esterification DOI: 10.1063/1.5125521
• confidence 2.5

  Polyethersulfone

  Characterization of Polydopamine-Coated Polyethersulfone (PES) membrane for water purification DOI: 10.1088/1757-899X/352/1/012052
• confidence 2.5

  polyethersulfone

  The synthesis of sulfonated polyethersulfone (SPES) and the preparation of its membranes as matrix in the immobilization of Candida antarctica lipase B (Cal-B) DOI: 10.1007/s00289-019-02932-7
• confidence 2.5

  Polyethersulfone

  Structural Changes and Operational Deterioration of the Uf Polyethersulfone (Pes) Membrane Due to Chemical Cleaning DOI: 10.1038/s41598-018-36697-2
• confidence 2.5

  polyethersulfone

  Modification of polyethersulfone membrane using MWCNT-NH2 nanoparticles and its application in the separation of azeotropic solutions by means of pervaporation DOI: 10.1371/journal.pone.0236529
• confidence 2.5

  Polyethersulfone

  Polyethersulfone membrane embedded with amine functionalized microcrystalline cellulose DOI: 10.1016/j.ijbiomac.2020.09.017
• confidence 2.5

  Polyethersulfone

  Identification of Foulants on Polyethersulfone Membranes Used to Remove Colloids and Dissolved Matter from Paper Mill Treated Effluent DOI: 10.3390/w12020365
• confidence 1.7

  polyethersulfone

  Ouali 等 - 2021 - Ozone compatibility with polymer nanofiltration me DOI: 10.1016/j.memsci.2011.07.018.
• confidence 1.7

  polyethersulfone

  In Situ Generation of Fouling Resistant Ag/Pd Modified PES Membranes for Treatment of Pharmaceutical Wastewater DOI: 10.3390/membranes12080762
• confidence 1.7

  polyethersulfone

  Molecular Compatibility and Hydrogen Bonding Mechanism of PES/PEI Blends DOI: 10.3390/polym14153046