This work focuses on the preparation and characterization of nanocomposites poly(glycidylmethacrylate)/organoclay. Effect of the organoclays nature and the preparation method were investigated in order to evaluate their structural, morphological and thermal properties. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), nitrogen sorption at 77 K, scanning and transmission electronic microscopy (SEM, TEM) and thermogravimetric analysis (TGA) were employed to determine the features of the obtained materials. In the first step, the Algerian clay was modified by ultrasonic-assisted method using different concentrations of CTAB or TBAHS in which they used as green nano-filler. A series of nanocomposites were prepared by two different methods. The first deals the in-situ polymerization of GMA within the organoclay galleries and the second pathway involves the use of solution blending of poly(GMA) assisted by ultrasound. The obtained results confirm the intercalation of surfactants within the clay layers, while the nanocomposites obtained by the both methods showed different morphologies and structures in which the exfoliated and intercalated forms were obtained. Both the nanocomposites displayed significant enhancement in the thermal stabilities compared to the unmodified poly(GMA). The best results in terms of reaction time, clay dispersion and nanocomposite yield were obtained by the ultrasound method.

这项工作的重点是纳米复合材料聚甲基丙烯酸缩水甘油酯/有机粘土的制备和表征。研究了有机粘土性质和制备方法的影响，以评估其结构，形态和热性能。用X射线衍射（XRD），傅立叶变换红外光谱（FTIR），77K下的氮吸附，扫描和透射电子显微镜（SEM，TEM）和热重分析（TGA）来确定所得材料的特征。第一步，使用不同浓度的CTAB或TBAHS，通过超声辅助方法对阿尔及利亚粘土进行改性，将它们用作绿色纳米填料。通过两种不同的方法制备了一系列纳米复合材料。第一个方法是在有机粘土画廊内进行GMA的原位聚合，第二个方法涉及在超声辅助下使用聚（GMA）的溶液共混。所获得的结果证实了表面活性剂在粘土层中的嵌入，而通过两种方法获得的纳米复合材料表现出不同的形态和结构，其中获得了剥离和嵌入的形式。与未改性的聚（GMA）相比，这两种纳米复合材料均显示出热稳定性的显着提高。通过超声方法获得了反应时间，粘土分散度和纳米复合材料收率方面的最佳结果。两种方法制得的纳米复合材料的形貌和结构均不同，其中均获得了片状和插层形式。与未改性的聚（GMA）相比，两种纳米复合材料均显示出热稳定性的显着提高。通过超声方法获得了反应时间，粘土分散度和纳米复合材料收率方面的最佳结果。两种方法制得的纳米复合材料的形貌和结构均不同，其中均获得了片状和插层形式。与未改性的聚（GMA）相比，这两种纳米复合材料均显示出热稳定性的显着提高。通过超声方法获得了反应时间，粘土分散度和纳米复合材料收率方面的最佳结果。