Synthesis of a reactive phosphate emulsifier

Through the reaction of glycidyl methacrylate(GMA)and lauric acid(LA),an intermediate with a secondary alcohol structure(GMA-LA)was prepared under conditions as molar ratio of GMA to LA is 1∶1;using N,N-dimethylbenzylamine as catalyst with dosage of 0.6% of the total mass of the reactants;reaction at(105 ℃) for 8 h.The yield can achieve 99%.The intermediate GMA-LA further reacted with POCl_3 and after hydrolysis of the reaction product,a reactive phosphate emulsifier product was obtained.The molar ratio of POCl_3 to intermediate GMA-LA is 1.2∶1.The reaction is carried in a solvent medium of toluene and at a temperature of(-30 ℃) for 2 h and the mass fraction of mono-phosphate in the product can achieve 63.5%.The product is further purified in order to get a sample of higher content of mono-phosphate and the sample is to be used for characterization.The starting materials,the intermediate and the purified product sample were characterized by IR spectra and the purified product sample was further characterized by~(13)CNMR spectrum and~(31)PNMR spectrum.The results showed that the product meets the targeted requirement.