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双子表面活性剂是一类带有两个疏水链、两个亲水链和一个联接基团的化合物。两个亲水基通过联结基团靠化学键联接,由此使两个表面活性剂单体相当紧密地结合,联结基团的介入及其化学结构、联接位置的变化,使双子表面活性剂结构具有多样化,从而具有更优良的物理化学性质及界面活性。双子表面活性剂一般通过绘制表面张力随浓度的变化曲线来测定;还可根据稳态荧光探针法进行测定,但此种方法需要实验设备要求较高,所以通常选用测量表面张力值法来测量双子表面活性剂的浓度。
Gemini surfactants are a class of compounds with two hydrophobic chains, two hydrophilic chains and one linking group. The two hydrophilic groups are chemically bonded via the linking group, thereby allowing the two surfactant monomers to bind relatively tightly, the intervening of the linking groups and their chemical structure, the change of the bonding position, the gemini surfactant structure having Diversification, which has better physical and chemical properties and interface activity. Gemini surfactants are generally determined by plotting the surface tension vs. concentration curves; they can also be measured using the steady-state fluorescence probe method, but this method requires a high degree of laboratory equipment and is usually measured by the surface tension method of measurement Gemini surfactant concentration.