How can you identify polyaniline from FTIR?

Quick answer

polyaniline 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 polyaniline, 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 1.0

  Polyaniline

  Archibong 等 - 2012 - Investigation of the binding of dioxin selective p DOI: 10.1016/j.synthmet.2012.04.012.
• confidence 0.95

  polyaniline

  Optimizing the Synthesis and Thermal Properties of Conducting Polymer–Montmorillonite Clay Nanocomposites DOI: 10.3390/en15041291
• confidence 0.9

  polyaniline

  A one-pot synthesis of a ternary nanocomposite based on mesoporous silica, polyaniline and silver DOI: 10.1039/c3ra44618b
• confidence 0.9

  polyaniline

  Revisiting the Redox Transitions of Polyaniline. Semiquantitative Interpretation of Electrochemically Induced IR Bands DOI: 10.1016/j.jelechem.2021.115593
• confidence 0.9

  polyaniline

  Polymer anode used in hydrometallurgy: Anodic behaviour of PANI/CeO 2 /WC anode from sulfate electrolytes DOI: 10.1016/j.hydromet.2018.01.020
• confidence 0.9

  polyaniline

  Polyaniline with Two Types of Functional Groups: Preparation and Characteristics DOI: 10.1002/macp.200400408
• confidence 0.9

  polyaniline

  Enhanced conductivity and fluorescence of polyaniline doped with Eu³⁺, Tb³⁺, and Y³⁺ ions DOI: 10.1002/app.36516
• confidence 0.9

  polyaniline

  Solid-State Synthesis of Polyaniline/Single-Walled Carbon Nanotubes: A Comparative Study with Polyaniline/Multi-Walled Carbon Nanotubes DOI: 10.3390/ma5071219
• confidence 0.9

  polyaniline

  Conductive Polyaniline Patterns on Electrospun Polycaprolactone/Hydroxyapatite Scaffolds for Bone Tissue Engineering DOI: 10.3390/ma14174837
• confidence 0.8

  polyaniline

  Investigation of the effect of acid dopant on the physical properties of polyaniline prepared using microwave irradiation DOI: 10.1016/j.cap.2014.06.018