Synthesis and application of isooctanol polyethenoxy ether phosphate

The effects of feeding way of phosphorus pentoxide,ratio of C_8H_(17)(EO)_4OH to P_2O_5,reaction temperature and time on the synthesized isooctanol polyethenoxy ether phosphate were investigated.Its optimum synthesis technology conditions were as follows: feeding at batches while stirring tempestuously at (45 ℃,) the ratio of n(C_8H_(17)(EO)_4OH)∶n(P_2O_5)=2∶1,esterifying at(70 ℃) for(4 h,) and add given volume of water at(70 ℃) for hydrolysing(2 h.) The experimental results indicated that the isooctanol polyethenoxy ether phosphate synthesized under the optimum process conditions has good resistance to strong alkali penetration,whose penetration time is 4 s when its mass concentration is(200 g/L) in sodium hydroxide solution.