The addition of methyl radicals to hexafluoropropylene

The addition of methyl radicals to hexafluoropropylene has been studied over the temperature range 81°–203°C using a mass‐balance technique involving the photolysis of biacetyl in the presence of hexafluoropropylene–isobutane mixtures. For the reaction the rate constant is given by the equation The result suggests that methyl radicals are very unselective in their behavior reacting with tetrafluoroethylene and hexafluoropropylene at similar rates. This is in marked contrast to the behavior of oxygen atoms with these olefins.