Hu Siqi, Fu Duojiao, Chen Hanyu, Liu Hongqin, Xu Baocai
School of Light Industry, Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology and Business University.
J Oleo Sci. 2020 Jul 2;69(7):703-710. doi: 10.5650/jos.ess19339. Epub 2020 Jun 9.
A series of gemini quaternary ammonium surfactants containing carboxylate counterion with the formula CHCONH(CH)N(CH)(CH)N(CH)(CH) NHCO CH·2Y (Y=HCOO, CHCOO, CHCHOHCOO) have been synthesized by a counterion conversion process and characterized by Fourier transform infrared spectroscopy and mass spectroscopy. It is found that these surfactants reduce the surface tension of water to a minimum value of 26.78 mN·m at a concentration of 1.21 ×10 mol·L. TEM images reveal that aggregates with vesicles or tubular structure are spontaneously formed in these surfactants aqueous solution with the concentration of 1×10 mol·L. It is also found that they are effective corrosion inhibitors for A3 steel in acid solution and have superior antibacterial activity at a concentration of 0.1g·L.
通过反离子转换过程合成了一系列含有羧酸盐抗衡离子的双子季铵表面活性剂，其化学式为CHCONH(CH)N(CH)(CH)N(CH)(CH)NHCO CH·2Y（Y = HCOO、CHCOO、CHCHOHCOO），并通过傅里叶变换红外光谱和质谱进行了表征。结果发现，这些表面活性剂在浓度为1.21×10 mol·L时可将水的表面张力降低至最小值26.78 mN·m。透射电子显微镜图像显示，在浓度为1×10 mol·L的这些表面活性剂水溶液中会自发形成具有囊泡或管状结构的聚集体。还发现它们是酸性溶液中A3钢的有效缓蚀剂，并且在浓度为0.1g·L时具有优异的抗菌活性。
