Development of Gemini Surfactants

The study of Gemini surfactants began in 1970s. In 197 1, Bunton et al. synthesized a new family of amphiphilic molecules, whose molecular structure sequence is: long hydrocarbon chain, ionic head group, linking group, second ionic head group and second hydrocarbon chain, and used them as phase transfer catalysts. It is found that it has higher catalytic efficiency than ordinary cationic surfactants.

After 1988, Ok Qu Xianluo of Oskaa University in Japan and his colleagues synthesized and studied some dialkyl chain surfactants with flexible linking groups. However, the real systematic research on this kind of new surfactants began in 199 1 year. At that time, Professor Menger and Lihua of Emery University synthesized and studied dialkyl chain surfactants with rigid linking groups, and named them as.

Gemini surfactant Gemini means Gemini in astronomy, which vividly expresses the molecular structure characteristics of this kind of surfactant. Therefore, China scholar Zhao Guoxi translated it as "Gemini surfactant".