Poly(methyl methacrylate)/silica nanocomposites membranes were prepared by simple solution mixing method using three different solvents (acetone, acetonitrile and chloroform). The structure and thermal properties of these nanocomposites were investigated by fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and environmental scanning electron microscope (ESEM). The infrared spectra confirm that the strongest H-bond interaction between the PMMA and silica was found when using chloroform solvent. In the case of thermal properties, the DSC and TGA analyses show significant improvement in thermal stability and glass transition temperature (T_g). Furthermore, the ESEM micrographs prove the structure stability of these synthesized nanocomposites. The results demonstrate that the solvent that lead to form the strongest H-bond interaction between the PMMA carbonyl groups and silica silanol groups (as chloroform solvent) will be more efficient in the synthesis of PMMA/SiO₂ nanocomposites.

使用三种不同的溶剂（丙酮，乙腈和氯仿）通过简单的溶液混合方法制备了聚（甲基丙烯酸甲酯）/二氧化硅纳米复合膜。通过傅立叶变换红外光谱（FTIR），差示扫描量热法（DSC），热重分析（TGA）和环境扫描电子显微镜（ESEM）研究了这些纳米复合材料的结构和热性能。红外光谱证实，使用氯仿溶剂时，发现PMMA与二氧化硅之间最强的H键相互作用。就热性能而言，DSC和TGA分析表明，热稳定性和玻璃化转变温度（T _g）。此外，ESEM显微照片证明了这些合成的纳米复合材料的结构稳定性。结果表明，导致在PMMA羰基和二氧化硅硅烷醇基之间形成最强H键相互作用的溶剂（作为氯仿溶剂）在PMMA / SiO ₂纳米复合材料的合成中将更有效。