Perkadox AIBN-PD

Product Line Organic peroxides

We offer azo initiators, such as Perkadox® AIBN (azobisisobutyronitrile) and Perkadox® AMBN (2-methylbutyronitrile), for bulk, solution suspension and emulsion polymerization of a wide variety of monomers, such as styrene, vinylchloride, vinylidenechloride, acrylonitrile, acrylates and methacrylates. Our most commonly used initiator is AIBN, but our AMBN provides even better solubility than AIBN. Advantages of AIBN initiators: Azo initiators have many advantages over standard organic peroxides, such as the fact that they form no oxygenated byproducts and provide low yellow discoloration. Azo initiators generate only C-centered radicals, which are low energy and very selective and cause a low amount of branching. This provides low Poly Dispersity Index (PDI) values and molecular weights. AIBN and other azo initiators provide excellent color stability in transparent colored polymers, such as PMMA. They do not form oxygenated residues and do not cause oxidative degradation of pigmented or dyed systems. Compared with organic peroxides, azo initiators avoid excessive grafting, making them particularly suitable for use in manufacturing acrylic cast and moulded sheets, as well as adhesives, acrylic fibers, super absorbers, detergents and flocculants. Perkadox® AIBN can also be used for pharmaceutical and fine organic synthesis. Our Trigonox 421 provides similar technical performance and is a sustainable alternative for AIBN. An additional advantage of Trigonox 421 is that all decomposition products that are generated are non-toxic, which is in contrast to AIBN which forms toxic TMSN.

  • Brand

  • Chemical family

    AZO initiator
  • CAS number

  • Physical form

  • Regional availability

    Africa, Europe, India, Latin America, Middle East, North America, Oceania
  • Molecular Weight

  • Chemical name

  • Molecular drawing

    AZO initiator
  • Applications

    Perkadox® AIBN-PD can be successfully used for bulk, solution, suspension polymerization of a wide variety of monomers, such as styrene, vinyl chloride, vinylidene, acrylonitrile, acrylates and methacrylates. Perkadox® AIBN-PD does not form oxygenated residues and does not cause oxidative degradation of pigmented of dyed polymer systems. For this reason, the color stability or transparent, dyed polymers, such as polymethylmethacrylate, is improved. 2,2’-Azodi(isobutyronitrile) (Perkadox® AIBN-PD) is also the (azo)initiator most commonly employed in radical reactions, especially those using tri-n-butyltin hydride.

Market Segments

Polymer production

Detailed description

Perkadox® AIBN-PD is a solid initiator for bulk, solution and suspension polymerization of a wide variety of monomers such as styrene, vinyl chloride, vinylidene, acrylonitrile, acrylates and methacrylates. Generates less aggressive C radicals compared to peroxide initiators, avoiding excessive grafting and form low-molecular weight resins.


  • Polymerization initiator


  • Polymer Polyols,
  • Polystyrene,
  • PVC
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For more information about Perkadox AIBN-PD, please contact our technical experts. We look forward to hearing from you.

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