Synthesis of trimethylolpropane trioleate and their emulsification-resistive properties

摘要

Trimethylolpropane trioleate was synthesized by oleic acid and trimethylolpropane as the raw material, SnCl2•2H2O as catalyst, toluene as watercarrying. The optimum reaction condition obtained through the experiments were found as follows: the molar ratio of OA to TMP was 3.1:1, the amount of SnCl2·2H2O was 2%, with toluene 2ml, reacted for 2h at temperature 170°C and vacuum degree 0.07Mpa. The results show that in the optimum conditions, the AE value of emulsification-resistive was 438.81, the ester value was 91.65%, the acid value was 2.41mgKOH/g, according with the standard of GB/T264. The structure of product was identified by IR.