中文摘要：

本文以烯丙基缩合多核芳香烃（COPNA）树脂与双马来酰亚胺（BMI）共聚制备BMI树脂,通过溶液插层的方法制备BMI树脂/氧化石墨纳米复合材料。采用X射线衍射（XRD）、透射电镜（TEM）、热重分析（TGA）研究了复合材料的结构和性能,采用电子万能试验机研究了复合材料的力学性能。研究表明,该复合材料为剥离型纳米复合材料,其起始热分解温度为450℃,高温（800℃）分解的残炭率为48.8%,并且具有良好的力学性能。

英文摘要：

A bismaleimide（BMI） resin system based on allyl condensed polynuclear aromatic （COPNA） resin and 4,4′-bismaleimidodiphenyl methane was used to prepare BMI resin/graphite oxide（GO） nanocomposites via solution intercalation method,and the properties of the nanocomposites were studied in this paper.The structures and properties of GO and the nanocomposites were characterized by X-ray diffraction（XRD）,transmission electron microscope（TEM） and thermogravimetric analysis （TGA）.In addition,the mechanical properties of the nanocomposites were studied using mechanical testing machine.Results show that the exfoliated nanocomposites are obtained,and the nanocomposites exhibit well thermo-stability as indicated by that the onset degradation temperature arrives at 450 ℃ and char residue at 800 ℃ reaches 48.8%.Moreover,the nanocomposites have good mechanical properties.