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China Surfactant Detergent & Cosmetics ›› 2017, Vol. 47 ›› Issue (7): 369-373.doi: 10.13218/j.cnki.csdc.2017.07.003

• Development and application • Previous Articles     Next Articles

Synthesis and performance of CO2 switchable amine surfactants

ZHANG Peng1, MEI Ping1,2, LAI Lu1,2   

  1. 1.College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou,Hubei 434023,China;
    2.Hubei Cooperative Innovation Center of Unconventional Oil and Gas,Wuhan,Hubei 430100,China
  • Received:2017-03-08 Published:2019-03-20

Abstract: Surfactant tetradecyldiethylenetriamine (C14DETA) was synthesized with 1-bromotetradecane and diethylenetriamine as starting materials.Its structure was characterized by FT-IR and 1H NMR spectrum.Measurement of reversibility of conductivity,reversibility of pH values,and the opening action of synergistic effect with SDS demonstrate the good CO2 switchability of C14DETA.The critical micelle concentrations (cmc) of tetradecyldiethylenetriamine bicarbonate (C14DETA-CO2) and the mixed system of SDS/C14DETA-CO2 are 1.0×10-2 and 1.0×10-4 mol/L respectively.Results of emulsifying performance of C14DETA-CO2 for n-decane/water system prove the good emulsifying power of C14DETA-CO2.The emulsion is water-in-oil type,and its better emulsifying conditions are:mass fraction of C14DETA-CO2,4%;and the volume ratio of oil/water,1∶1 or 1∶2.

Key words: CO2 switchable surfactant, characterization, critical micelle concentration, performance

CLC Number: 

  • TQ423