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China Surfactant Detergent & Cosmetics ›› 2015, Vol. 45 ›› Issue (12): 685-689.doi: 10.13218/j.cnki.csdc.2015.12.005

• KAIFA YU YINGYONG • Previous Articles     Next Articles

Synthesis and performance of asymmetric Gemini sulfosuccinate surfactant

WANG Hong-di1, MA Jian-zhong1,2, LÜ Bin1,2, GAO Jian-jing1, XUE Dan1   

  1. 1.College of Resources and Environment,Shaanxi University of Science and Technology,Xi'an,Shaanxi 710021,China;
    2.Shaanxi Research Institute of Agricultural Products Processing Technology,Xi'an,Shaanxi 710021,China;
  • Received:2015-07-16 Revised:2015-11-08 Published:2019-04-10

Abstract: Lauryl alcohol,maleic anhydride and lauric acid monoethanolamide were used as starting materials to synthesized asymmetric Gemini sulfosuccinate surfactant.The optimized conditions for diesterification are as following:reaction temperature,140 ℃;reaction time,6 h;and n(lauryl alcohol maleic acid monoester)∶n(lauric acid monoethanolamide)=1∶1.The structure of the target compound was characterized by FTIR and 1HNMR.The surface tension,foaming performance and emulsifying power of the product were measured.Results showed that the product has low cmc as 2.21×10-5 mol/L and γcmc as 31.1 mN/m.It displays stronger foaming power and better foam stability.Water separation time of the emulsion made of the product achieves 278 s.

Key words: Gemini surfactant, succinic acid diester, asymmetry

CLC Number: 

  • TQ423