Polymerization of styrene:
PEROXAN PK122 V-80 may be used in bulk polymerization of styrene. Due to the bifunctionality of PEROXAN PK122 V-80 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: 0,01 to 0,08 phr
Polymerization of acrylates and methacrylates:
PEROXAN PK122 V-80 can be used as initiator for the solution, bulk and Suspension (co)polymerization of acrylates and methacrylates.
Temperature range: 95 to 125°C
Dosing: 0,08 to 0,8 phr
PEROXAN PK122 V-80 may also be used for the (co)polymerization of acrylonitrile.
PEROXAN PK122 V-80 is used for the curing of unsaturated polyester resins at elevated temperatures.
PEROXAN PK122 V-80 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-80 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-80: 1,5 to 2,5 phr