Synthesis of disodium sulfosuccinate of lauryl alcohol polyoxyethylene ether and application in microemulsion polymer

The main factors affecting the synthesis of disodium sulfosuccinate of monolauryl alcohol polyoxyethylene ether (AESS) were discussed. The optimum reaction conditions were the molar ratio of maleic anhydride and lauryl alcohol polyoxyethylene ether was 1.2∶1; reaction temperature was 85 ℃; dosage of catalyst was 1.2%; reaction time was 5.0 h;. sulfonation at temperature of 75 ℃ for 2 h. The structure of it was studied by Fourier transform infrwered (FTIR). And the emulsifying power and solubilization were measured. The AESS was applied in the microemulsion polymerization,and this microemulsion polymer was used as leather retanning agent,which can improve the leather's tensile strength and tearing strength,but had reverse influence on the softness.