有机胺和丙烯酸甲酯进行迈克尔加成反应合成了一系列以有机胺为核的低代树枝状大分子,再与水合肼反应得到相应的树枝状多酰肼作为环氧树脂固化剂.通过核磁(NMR)、固化反应活性和力学性能测试等方法对固化剂结构与性能进行了研究.结果表明,树枝状多酰肼作为环氧树脂固化剂具有良好的中温固化活性(＜ 120℃),固化物无色透明,力学性能优异,拉伸强度最高可达59.17MPa,弯曲强度达197.98MPa,冲击强度达30.2 kJ/m2.
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