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Hexabromocyclododecanes (HBCDs) are high production volume chemicals (>20000ty −1 ) used as flame retardants for plastics and textiles. Lately, we reported on the stereoselective isomerization of β-HBCDs. Herein we present insights into the mechanism and kinetics of (+)γ- to (+)α- and of (-)γ- to (-)α-HBCD isomerization. Only two of the six bromine atoms migrated, indicating that rearrangements...
Hexabromocyclododecanes (HBCDs) are high production volume chemicals currently produced in quantities exceeding 20000ty −1 . They are used as flame retardants for plastics and textiles. HBCDs are thermally labile compounds, rapidly decomposing at temperatures above 250°C to form bromine radicals, which scavenge other radicals formed during pyrolysis.But certain HBCD stereoisomers must reach...
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