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Conventional quaternary ammonium salt surfactant, which is one of the most widely used cationic surfactant, has some toxicity and poor biodegradability.In order to obtain better properties of the cationic surfactants, while resolving toxicity and biodegradability, three series of quaternary ammonium salts with new counterions were synthesized by use of non-toxic green chemical material-dimethyl carbonate.The surface activities of these compounds were measured.Adsorption and micellization free energies of these quaternary ammonium salts in their solutions showed a good tendency towards adsorption at the interfaces.It is very significant that their surface activities are higher and they are highly effective aqueous surfactants.Studies also have shown that the interaction between the counterion and the cationic charged group has a significant influence on surface tension.Furthermore, the surface tension value increases with the hydrophilicity of the counteranion increasing.