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EFOX® 101 is a 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane initiating compound. It can be used in the controlled degradation of polypropylene and as a chaser catalyst in styrene polymerization.
Appearance: Clear liquid
Color: 50 Pt-Co/APHA max
Density @ 20°C: 0.87 g/cm³
Viscosity @ 20°C: 8 mPa·s
Active oxygen content: 10.14% min
Assay: Min. 92.0%
THBP: Max. 0.3%
SADT: 80°C
Shelf life: 12 months
CAS No. 78-63-7;
Primary Chemistry:
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
EFOX® 101 is a high-purity peroxide initiator containing 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (CAS No. 78-63-7). As a clear liquid with a viscosity of 8 mPa·s, it easily incorporates into polymer reaction mixtures. It has an active oxygen content of 10.14% and an assay of 92.0%. EFOX® 101 allows formulators to control polypropylene polymers’ melt flow index with optimal effectiveness occurring in the temperature range of 200°C to 250°C. It may also be used in mass styrene polymerization as a chaser catalyst, while reducing the residual monomer content of reactions.
Incompatible melt flow index for polymer end-use applications
Excessive residual monomer content in the polymerization of styrene
Polypropylene production
Polymerization of styrene
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