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Title: Effect of pressure on the photolysis of azo-bis-isobutyronitrile in the presence of diphenylpicrylhydrazyl
Authors: Tanaka, Fujio
Sasaki, Muneo
Osugi, Jiro
Issue Date: 31-Mar-1972
Publisher: The Physico-Chemical Society of Japan
Journal title: The Review of Physical Chemistry of Japan
Volume: 41
Issue: 1/2
Start page: 18
End page: 21
Abstract: AIBN was photolyzed in toluene at room temperature at pressures up to 2, 000kg/cm^2 and the rates of the disappearance of DPPH which was used as a radical scavenger were measured spectrophotometrically. The rate was decreased with increasing pressure and the apparent activation volume was +7.6cm^3/mole. In comparison with Ewald's results on the thermal dissociation of AIBN, it was considered that an important contribution to the apparent activation volume was due to the change of "cage efect" by plessure and that the retarding effect of pressure on the photodissociation of AIBN would be smaller than on the thermal dissociation of AIBN.
Appears in Collections:Vol.41 No.1 & 2

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