Abstract: The variations of the G value of the major products (H_2, CH_3CHO, (CH_3CHOH)_2) of the γ-radiolysis of liquid ethanol with the dose absorbed by the ethanol have been measured.
The kineties of α-hydroxyethyl radical reacted with styrene in the ethanol-styrene system has been investigated.
St+CH_3CHOH→P
2CH_3CHOH→(CH_3CHOH)_2
The kinetic equation has been derived as
G'=G_0 k_6/2(k_7) 1/2 (G'/Dk')[Sl]
and we got K_6=4.0×10~4 L·mol~(-1)·s~(-1).
The disproportionation of α-hydroxyethyl radical scarcely occurs and acetaldehyde may come from the fast processes in spur.