Abstract—

The pendant drop shape and oscillating pendant drop methods have been employed to study the surface tension and the dilatational rheological surface characteristics at the solution–air interface for aqueous solutions of dicationic imidazolium surfactants with extremely short bridge fragments. A high surface activity has been revealed for these surfactants. High values of the dilatational viscoelasticity modulus have been found for the surfactant solutions. The modulus values increase with a decrease in the length of bridge fragments and an increase in the length of hydrocarbon radicals in surfactant molecules.

中文翻译：

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带有短桥片段的阳离子型咪唑表面活性剂溶液的表面性质

摘要—

悬垂液滴的形状和振动悬垂液滴的方法已被用于研究咪唑鎓表面活性剂具有极短桥片段的水溶液在溶液-空气界面的表面张力和膨胀流变表面特性。这些表面活性剂具有高的表面活性。对于表面活性剂溶液，已经发现高的膨胀粘弹性模量值。模量值随着表面活性剂分子中桥片段长度的减少和烃基长度的增加而增加。