Synthesis and characterization of a novel abietyl glycine amphoteric gemini surfactant

The designed compound,abietyl glycine amphoteric germini surfactant,is synthesized via successive acylamidation with glycine,then salification with ethylenediamine by using rosin of which the acid value is 170.54 mg(KOH)/g as raw material.The structure of the designed compound is characterized by the FT-IR.Its property is analyzed by surface tension determine instrument.The results indicate that the critical micelle concentration(CMC) and the surface tension of the amphoteric germini surfactant is 5×10-4 mol/L and 34.208 mN/m,respectively.Furthermore,it is found that its emulsifying ability time(up to 2.5 hours),foaming ability and foam stabilization are satisfactory,which make it more promising for an excellent emulsifier.