含磷阻燃剂BHPPO的合成与表征

摘要

A phosphorus‐containing flame retardant bis (4‐hydroxyphenyl) phenyl phosphine oxide (BHPPO ) was synthesized by the reaction of phenyl phosphonic dichloride(PPD) and hydroquinone(HQ) .The chemical structure of the obtained compound was identified by FT‐IR ,1 H NMR ,13C NMR and ESI‐MS .The optimum reaction conditions were determined as follows :in nitrogen atmosphere ,the mole ratio of phenyl phosphonic di‐chloride and hydroquinone was 1∶2 4. ,40 mL xylene as solvent ,reaction temperature was 130 ℃ ,the reaction time was 10 h ,yield was 91 7.3% .And the thermal stability of BHPPO was tested by MP and TG .%以苯膦酰二氯（PPD）和对苯二酚（HQ）为原料，合成了含磷阻燃剂2‐（4‐羟苯基）苯膦氧化物（B H‐PPO），并通过FT‐IR、1 H NMR、13C NMR、ESI‐MS对该化合物结构进行了表征。合成BHPPO的最佳工艺条件是在氮气保护条件下，n（PPD）∶ n（HQ）＝1∶24．，反应物浓度为08． mol／L ，反应温度为130℃，反应时间为10 h ，其收率为917．3％；并通过热重分析研究了BHPPO的热稳定性能。