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Residual monomer analysis

Trace amounts of monomers are often present at the end of polymerization reactions.  The levels of residual monomers can affect performance and need to be measured to meet specifications. 

We can identify and quantify low levels of residual monomers through a variety of techniques across a wide range of polymer classes including both thermoplastics and thermosets. A few examples are shown below. Residual monomer analysis is often part of a larger polymer deformulation effort or trace impurities analysis.

 

Examples of identification:

  • Acryaltes and methacrylates in acrylic resin and acrylate latexes
  • Diacids and dialcohols in polyesters including PET, PBT and biobased polyesters
  • Isocyanates and polyols in polyurethanes
  • Amines and alcohols in polyamides
  • BPA in polycarbonates
  • Aromatic acids, glycols and anhydrides in unsaturated polyester resins
  • Styrene in polystyrene resin and polystyrene foams
Chemical profiling for residual monomer analysis
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