Akzo Nobel offers a wide range of organic peroxide initiators for the production of general purpose polystyrene (GPPS), high impact polystyrene (HIPS), expandable polystyrene (EPS), and other styrenic copolymers. Appropriate initiators are available for both mass and suspension polymerization processes.
Organic peroxide initiators are also used for the production of other styrenic copolymers such as SAN, polymer polyols, and toner resins. Hydroperoxides are mainly applied in SBR and ABS emulsion processes.
Benefits of using peroxide initiators, as compared to thermal initiation, are increased reactor output, tailoring of molecular weight, and lower levels of residual monomer and oligomers.
Certain organic peroxides and C-C initiators are extensively used as flame retardant synergists, mainly in EPS.
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