How can you identify PHB from FTIR?
This page summarizes the recurring FTIR evidence reported for PHB, 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
PHB 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
| 官能基 | 証拠 |
|---|---|
| Carbonyl (C=O) | 13 |
| Alkyl C-H | 12 |
| Methacrylate | 9 |
| Acetate | 9 |
| Ester | 7 |
| Methoxy (OCH3) | 6 |
| C-O single bond | 6 |
| Methyl | 5 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of PHB, 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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信頼度 0.9
PHB
Effect of processing conditions on the development of morphological features of banded or nonbanded spherulites of poly(3hydroxybutyrate) (PHB) and polylactic acid (PLLA) blends DOI: 10.1002/pen.21991 -
信頼度 0.9
PHB
Production and optimization of bioplastic (Polyhydroxybutyrate) from DOI: 10.1186/s12866-022-02593-z -
信頼度 0.9
PHB
Almeida 等 - 2017 - PHBBentonite Compounds. Effect of Clay Modificati DOI: 10.1590/1980-5373-MR-2016-0577 -
信頼度 0.9
PHB
Mostafa 等 - 2020 - Production and Characterization of Bioplastic by P DOI: 10.3390/molecules25010179 -
信頼度 0.9
PHB
Salehabadi 等 - 2014 - Effect of Organo-Modified Nanoclay on the Thermal DOI: 10.3390/ma7064508 -
信頼度 0.8
PHB
Production kinetics of polyhydroxyalkanoates by using Pseudomonas aeruginosa gamma ray mutant strain EBN-8 cultured on soybean oil DOI: 10.1007/s13205-016-0452-4 -
信頼度 0.8
PHB
Rivas 等 - 2017 - Reprocessability of PHB in extrusion ATR-FTIR, te DOI: 10.1590/0104-1428.2406 -
信頼度 0.5
PHB
El-Hadi - 2019 - Miscibility of CrystallineAmorphousCrystalline B DOI: 10.1080/03602559.2018.1455863 -
信頼度 0.5
PHB
El-Hadi 等 - 2014 - Enhancing the crystallization and orientation of e DOI: 10.1007/s10965-014-0605-2 -
信頼度 0.5
PHB
Narayanan 等 - 2014 - Production and Characterization of Poly (3-Hydroxy DOI: 10.1007/s12649-013-9213-3
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