抄録
Photochemical reaction of the free radical photographic system proposed by Sprague was investigated in details. Photochemical products of diphenylamine-CBr4 system (DPACBr4) was studied in the solution, in bulk and in polymer matrix, It was found by the product analysis that in the solution a red dye 9-diphenylaminoacridine (DPAAc) is produced predominantly and the blue dye 4, 4′, 4″-tri (anilino) triphenylmethane bromide (TATPM) is scarcely formed, while in bulk the blue dye (TATPM) is formed in the amount comparable to that of the red dye (DPAAc). Similar result to that in bulk was obtained in polymer matrix. The results show that several photoproducts besides triphenylmethane dye identified by Sprague are formed through the addition of ·CBr3 to ortho-position and nitrogen of DPA, and that the fractions of the photoproducts depend strongly on the reaction conditions, such as concentrations, molar ratios, and the phases.
