(55d) Syntheses of Gemini Betaine Surfactants From α- Chlorocarboxylic Acids

Du, G., Jiangnan University
Fang, Y., School of Chemical and Material Engineering, Jiangnan University

Syntheses of Gemini Betaine Surfactants from α- Chlorocarboxylic Acids

 Guangming Du, Yun Fang*

School of Chemical & Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China


   The intermediate α- chlorocarboxylic acids were synthesized at first from natural fatty acids and molecular chlorine through selectively chlorinating at the α-position of fatty acids. Then the novel Gemini betaine surfactants were synthesized from α- chlorocarboxylic acids by amination with dimethylamine. The synthesis route is a simple and economical process with industrial prospects due to using cheap biomass raw material. The properties of the novel Gemini betaine surfactants showed that the oil-based Gemini betaine surfactants have excellent surface and interface activity which displayed the potential applying in the enhanced oil recovery and special cleaning on extreme conditions.

Keywords: Gemini surfactant, Zwitterionic surfactant, Betaine, Fatty acid.


* Corresponding author: yunfang@126.com.


This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.


Do you already own this?



AIChE Members $150.00
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
Non-Members $225.00