中文摘要：

以9，10-二氢-9-氧杂-10-磷杂菲-10-氧化物（DOPO）、顺丁烯二酸、乙二醇为原料，反应合成了一种基于磷杂菲基团的新型无卤阻燃多元醇。通过傅立叶红外光谱（fTr—IR）、核磁共振波谱（1H—NMR）、差示扫描量热法（DSc）以及热重分析（TG）等表征了目标化合物的结构和性能。热重分析（TGA）表明，该阻燃多元醇具有较高的热稳定性和良好的成炭性，热失重5％时的温度为262．6℃，800oC时的残炭率为10％左右，可应用于聚氨酯外墙保温材料中，起到一定的防火阻燃效果。

英文摘要：

A novel halogen-free flame retardant polyols oxa-10-Oxide （DOPO）, maleic acid with phosphaphenanthrene group was synthesized and ethylene glycol by one step reaction.And the ty of polyols was characterized by fourier transform infrared spectra（FT-IR）, 1H nuclear magnetic resonance differential scanning calorimetry （DSC）, thermogravimetric （TG）. The results of thermogravimetrie analysis （TGA） retardant has a high thermal stability and exeeUent char-forming ability.The 5% weight loss temperature of was above 262.6℃and the char yleld was about 10% at 800℃.The flame retardant polyols can be used foam external thermal insulation materials, it has a certain effect of flame retardant. via 9, 10-dihydro-9- structure and properspectrum （1H-NMR）, show that the flame the target compound in rigid polyurethane