How can you identify PCL from FTIR?
This page summarizes the recurring FTIR evidence reported for PCL, 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 17 cited sources
Quick answer
PCL 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
| Groupe fonctionnel | Preuves |
|---|---|
| Alkyl C-H | 39 |
| Methacrylate | 34 |
| Acetate | 34 |
| Methoxy (OCH3) | 32 |
| C-O single bond | 29 |
| Carbonyl (C=O) | 22 |
| Hydroxyl (O-H) | 19 |
| Amide | 18 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of PCL, 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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confiance 0,9
PCL
Preparation of electrospun polycaprolactone nanofiber mats loaded with microalgal extracts DOI: 10.1002/elsc.201900009 -
confiance 0,9
PCL
Electrospun Azido-PCL Nanofibers for Enhanced Surface Functionalization by Click Chemistry DOI: 10.1021/am301458y -
confiance 0,9
PCL
Adapalene-loaded poly(#_#x03B5;-caprolactone) microparticles: Physicochemical characterization and in vitro penetration by photoacoustic spectroscopy DOI: 10.1371/journal. -
confiance 0,9
PCL
Wang 等 - 2017 - Preparation of active 3D film patches via aligned DOI: 10.1038/srep43924 -
confiance 0,9
PCL
Polymer Composite Materials Based on Polylactide with a Shape Memory Effect for “Self-Fitting” Bone Implants DOI: 10.3390/polym13142367 -
confiance 0,8
PCL
Joseph 等 - 2011 - Optimum Blend of Chitosan and Poly-(epsilon-caprol DOI: 10.1007/s11947-009-0203-1 -
confiance 0,8
PCL
Reconsideration of the results of the two dimensional correlation infrared spectroscopic study on water diffusion process in poly(ϵ-caprolactone) matrix DOI: 10.1016/j.polymer.2010.12.051 -
confiance 0,8
PCL
Hejna 等 - 2020 - Reclaimed RubberPoly(epsilon-caprolactone) Blends DOI: 10.3390/polym12051204 -
confiance 0,8
PCL
Jeon 等 - 2018 - Improvements in the Rheological Properties, Impact DOI: 10.1155/2018/5316175 -
confiance 0,8
PCL
Thermal and Mechanical Properties of Compression-Molded pMDI-Reinforced PCL/Gluten Composites DOI: 10.1002/app.32260
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