Photoredn. of benzophenone (BP) derivatives was studied in benzoylbenzyldimethyldodecylammonium bromide (PKT: p-C6H5COC6H4CH2N+(CH3)2C12H25.Br-). The photoredn. activity of BP linked to PKT by amine (TEA) differed significantly before and after the formation of the PKT micelle, and the reaction rate enhancement with increasing concentration in the micelle formed was u1.5 times the rate in a homogeneous aqueous solution The photoredn. rate of BP gained >10-fold in PKT functional micelle than in conventional micelles. Kinetic data show that the electron transfer in the BP/TEA photoredn. is mainly promoted by PKT micelle and the proton transfer is more efficient at high amine concentration The photoredn. mechanism of BP bound to PKT under different conditions is discussed.

Key words: MICELLE, REACTION RATE CONSTANT, PHOTO REDUCTION, DIPHENYLMETHANONE