新型反应型阻燃剂中间体双(对甲苯基)苯基硫化膦的合成  

Synthesis of bis(4-methylphenyl)phenyl phosphine sulfide as a new reactive-type flame retardant intermediate

作　　者：崔丽丽[1] 李巧玲[1] 韩红丽[1] 

机构地区：[1]中北大学理学院,山西太原030051

出　　处：《应用化工》2007年第9期845-847,共3页Applied Chemical Industry

基　　金：山西省自然科学基金项目(20041027);山西高校科技研究开发项目(20041220)

摘　　要：以苯、三氯化磷、三氯化铝、硫粉、甲苯等为原料,通过三步反应,两次蒸馏,合成了新型反应型阻燃剂中间体双(对甲苯基)苯基硫化膦(BMPPS),并用IR、1H NMR和DSC对BMPPS进行了表征。结果表明,以逐滴滴加苯的投料方式,改变硫和甲苯的用量,当三氯化磷∶苯∶三氯化铝∶硫∶甲苯=3∶1∶1.1∶1.1∶3.5(摩尔比)时,BMPPS的产率可达到75.4%。本工艺对提纯BMPPS所用的乙醇进行了回收利用,减少了对环境的污染,同时也降低了实验成本。Bis（4-methylphenyl） phenyl phosphine sulfid （BMPPS） which is a new reactive-type flame retardant for plastics intermediate, was synthesized using benzene, phosphorous trichloride, aluminium trichloride and toluene, through three steps reaction and distillation twice in this article. BMPPS was characterized and validated by FT-IR, ^1H NMR and DSC. The experimental results show that, by dropping benzene,changing quantities of sulfur and toluene, the yield of BMPPS is 75.4% when the mole ratio of phosphorous trichloride to benzene to aluminium trichloride to sulfur to toluene is 3 ： 1 ： 1.1 ： 1.1 ： 3.5. Ethanol used is recycled, so the pollution is reduced, and the cost is cut down too.

关 键 词：苯基硫代膦酰二氯 双(对羧苯基)苯基氧化膦 含磷阻燃剂 

分 类 号：TQ126.37[化学工程—无机化工]