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The addition of methyl radicals to tetrafluoroethylene

✍ Scribed by J. M. Sangster; J. C. J. Thynne

Publisher: John Wiley and Sons
Year: 1969
Tongue: English
Weight: 377 KB
Volume: 1
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550010607

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✦ Synopsis

The addition of methyl radicals to tetrafluoroethylene in the gas phase has been studied over the temperature range 8O-18O0C, using a material balance method.

CH, + C,F4 -+ CH,C,F, Arrhenius parameters of 1011.95*0.23 (mole-l cm3 sec-l) and 5.7 f 0.4 (kcal/mole) have been measured for the addition reaction.

Electrophilic reagents such as 0 or CF, appear to react almost equally readily with ethylene and tetrafluoroethylene but methyl radicals add much more rapidly to tetrafluoroethylene than to ethylene, the difference in reactivity being principally due to an activation energy difference of -2 kcal/mole.

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