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Termination rate constants of t-butyl radicals, in solution: interference by cis-azoisobutane

✍ Scribed by John E. Bennett; John A. Eyre; C.Peter Rimmer; Raymond Summers

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
228 KB
Volume
26
Category
Article
ISSN
0009-2614

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✦ Synopsis

The rate constant for the mutual termination reaction of r-butyl radicals in solution has been measured by kinetic ESR spectroscopy and is (11.1 f 3.4) X IO9 hl-' set-' over the temperature range from 220 to 330°K. Azoisobutane was shown to be unsuitable as a photo-initiator in the eltperiments because the formation of the thermally unstable cis-isomer during photolysis led to erroneous values of the rate constant.

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