How can you identify CA from FTIR?
This page summarizes the recurring FTIR evidence reported for CA, 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 10 cited sources
Quick answer
CA 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
| Grup funcțional | Dovezi |
|---|---|
| Hydroxyl (O-H) | 17 |
| Acetate | 14 |
| Methacrylate | 13 |
| C-O single bond | 12 |
| Methoxy (OCH3) | 11 |
| Amide | 9 |
| Alkyl C-H | 9 |
| Carboxyl (COOH) | 5 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of CA, 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
-
încredere 0,9
Ca
Atoguchi 和 Kanougi - 2004 - Phenol oxidation over alkaline earth metal ion exc DOI: 10.1016/j.molcata.2004.08.020 -
încredere 0,9
CA
Cojocaru 等 - 2022 - Electrospun Nanofibrous Membranes Based on Citric DOI: 10.3390/polym14020294 -
încredere 0,8
CA
Biomimetic Growth of Hydroxyapatite on Electrospun CA/PVP Core–Shell Nanofiber Membranes DOI: 10.3390/polym10091032 -
încredere 0,7
CA
Plasticizing effect of 1-allyl-3-methylimidazolium chloride in cellulose acetate based polymer electrolytes DOI: 10.1016/j.carbpol.2011.11.037 -
încredere 0,7
CA
Molecular Assembly between Weak Crosslinking Cyclodextrin Polymer and trans-Cinnamaldehyde for Corrosion Inhibition towards Mild Steel in 3.5% NaCl Solution: Experimental and Theoretical Studies DOI: 10.3390/polym11040635 -
încredere 0,5
CA
Solid-state thermal behavior and stability studies of theophylline–citric acid cocrystals prepared by neat cogrinding or thermal treatment DOI: 10.1016/j.jssc.2012.04.010 -
încredere 0,5
CA
Evaluation of the physico-chemical properties of potato starch-based foods and their interactions with milk protein and soybean oil DOI: 10.1016/j.fochx.2022.100495 -
încredere 0,5
CA
Comparison of the Growth and Thermal Properties of Nonwoven Polymers after Atomic Layer Deposition and Vapor Phase Infiltration DOI: 10.3390/coatings11091028 -
CA
Kim 和 Kim - 2013 - Preparation of Surface-Hydrolyzed Cellulose Acetat DOI: 10.7317/pk.2013.37.1.52 -
CA
Mechanistic understanding of the effect of zein–chlorogenic acid interaction on the properties of electrospun nanofiber films DOI: 10.1016/j.fochx.2022.100454
Upload your FTIR spectrum
Get AI-based polymer identification and peak-by-peak interpretation from your own spectrum.