Polymerization of styrene:
PEROXAN PK122 V may be used in bulk polymerization of styrene. Due to the bifunctionality of PEROXAN PK122 V and the more constant reaction rate using this initiator, the resulting polymer has a higher molecular weight and shows reduced dispersity.
Temperature range: 90 to 120°C
Dosing: 0,02 to 0,1 phr
Polymerization of acrylates and methacrylates:
PEROXAN PK122 V can be used as initiator for the solution, bulk and suspension (co)polymerization of acrylates and methacrylates.
Temperature range: 95 to 125°C
Dosing: 0,1 to 1 phr
PEROXAN PK122 V may also be used for the (co)polymerization of acrylonitrile.
PEROXAN PK122 V is used for the curing of unsaturated polyester resins at elevated temperatures.
PEROXAN PK122 V is preferred for the curing of UP resin based hot press moulding formulations in the temperature range from 120° to 170°C.
The stability of this peroxyketal in an UP resin is hardly influenced by the presence of metal accelerators, pigments or fillers. PEROXAN PK122 V is therefore very suitable for pigmented and non-pigmented hot press moulding formulations where a long shelf life of the compound is required.
Depending on working conditions, the following peroxide dosage level is recommended:
PEROXAN PK122 V: 2,0 to 3,0 phr