【作者】 张骥红； 刘大光； 姚成；

【Author】 Zhang Jihong, Liu Daguang, Yao Cheng ( Jiangsu Institute of Chemical Industry Co. Ltd,Nanjing 210024; College of Science,Nanjing University Technology 210009)

【机构】 江苏省化工研究所有限公司； 南京工业大学理学院；

【摘要】 以三氯氧磷、乙二醇、环氧氯丙烷为原料,合成了目标产物五(1,3-二氯-2-丙基)-1,2-二亚乙基三磷酸酯,探讨了反应条件对产品的影响,确定了最佳的反应条件:反应物的配比n(乙二醇):n (三氯氧磷):n(环氧氯丙烷)为3．2:2:4．2;最佳反应温度分别为15～18℃,50～70℃,第一步反应时间为2．5 h,第二步反应时间为4 h,最佳催化剂用量为0．4％。产率达88．2％。用红外对其进行了表征, 用重量法测定了其中的磷含量。用其制阻燃软质聚氨酯泡沫塑料,具有较好的阻燃效果。更多还原

【Abstract】 The flame-retardant 1,2-bisethylene pent(1.3-dichloro-2-propyl) triphosphate was synthesized with phosphorus trichloride, glycol, epichlorohydrin and titanium tetrachloride as catalyst. The reaction conditions of each step were optimized. The optimal reaction condition were as follows, molar ratio of glycol: phosphorus trichloride: epichlorohydrin was 2:3.2:5.2; reaction temperature of each step was 15~18 ℃ and 50-70 ℃ ,reaction time of each step was2.5h and 5h. The optimal condition of the amount of catalyst is 0.4 %. The yield reached 88.2 % . The product was characterized by IR, and measured the phosphorus content. The obtained phosphate was used to soft polyurethane foam,and get satisfactory result.更多还原