双子表面活性剂的结构特点与表面活性

Structural Characteristics and Surface Activity of Gemini Surfactants

双子型表面活性剂由于极性头基区域的键合,阻抑了极性头之间的斥力,突破了传统表面活性剂的结构概念,具有比传统表面活性剂高得多的表面活性,现有的研究数据表明并联结构的双子表面活性剂具有比串联结构的双子表面活性剂高的降低表面张力的能力。

Gemini surfactants were made up of two identical amphiphilic moieties covalently at the level of the head groups by a spacer group,which strongly decreased the separation between the polar head groups within Gemini surfactants when they aggregated and thus was a breakthrough in concept compared with the general surfactants.The surface activity of Gemini surfactants was greatly enhanced from the general surfactants.The present date showed that the paralleling structure of Geminis had a higher ability than the cascade structure in decreasing the surface tension of solution.