Two new Schiff base Mn(III) complexes (and ) containing polyether side chains were prepared and used in BNPP hydrolysis as catalyst of metallomicelle resulting from the reaction with Brij35. The mechanism of the catalytic hydrolysis reaction was discussed, a kinetic mathematical model of BNPP cleavage catalyzed by the metallomicelle was proposed, and the Michanelis constant and the apparent active energy of the catalytic reaction were calculated. Compared with polyether side chain-free analogues , the effect of polyether side chains and their terminal groups on catalytic hydrolysis reaction was investigated. The result showed that the catalytic reaction obeyed the mechanism of the metal-hydroxide, and the activity of , which contains hydroxyl group OH as the terminal group of the polyether side chain, is the highest. Under the same condition, the pseudo-first-order rate constant k_obs (s^－1) of BNPP hydrolysis catalyzed by is about 3 times that of , and about 30 times that of , respectively.

Key words: salicylaldimine Schiff base magnesium(III), metallomicelle, BNPP catalytic hydrolysis, kinetics