In order to obtain higher surface activity and lower foaming ability, novel asymmetric Gemini alkyl polyglycosides were synthetized based on tertiary dodecyl dimethyl amine and epoxy chloropropane by adopting chlorination, substitution, and quaternization reactions. The structure of synthesis product was characterized by using Fourier transform infrared spectroscopy, 1H nuclear magnetic resonance spectroscopy and elemental analysis. It was confirmed that the synthesis product was an asymmetric glycoside quaternary ammonium salt with double ionic head groups. The critical micelle concentration of the resulting product was 0.025 g/mL at 20°C and its surface tension was low to 22.8 mN/m. The emulsifying ability and wettability of the product were the same as or even better than those of the commonly used surfactants. Moreover, the product revealed low foaming ability.
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