A series of N-alkoxymethyl-N, -N, N-dimethyl-N-(4-hydroxy-3,5-di-t-butyl)-benzylammonium chlorides was synthesized as a new group of surfactants with an antioxidant function incorporated into the molecule. The interaction of these compounds with liposomes, planar membranes (BLM) and red blood cells was studied. It was found that the interaction of the compounds studied with model membranes is alkyl-chain-length dependent. A comparison of substituted-in-the-ring with unsubstituted benzylammonium salts indicated a weaker modification of the membranes by substituted salts. Possible practical applications are discussed.