This paper presents some characteristics, properties, and morphology of TiO2 nanoparticles (nano-TiO2) modified with various contents of 3-(trimethoxysilyl)propyl methacrylate (TMSPM) coupling agent. The treatment process was carried out in ethanol solvent at 50oC using ammonia as a catalyst for hydrolysis reaction of silane to silanol. Infrared spectroscopy, thermogravimetric analysis, transmission electron microscopy, field emission scanning electron microscopy, dynamic light scattering, ultraviolet-visible spectroscopy, and X-ray diffraction methods were used for determination of the characteristics, properties of nano-TiO2 before and after treatment. In addition, the contact angle and grafting efficiency of TMSPM on the surface of TiO2 nanoparticles was also evaluated. The obtained results confirmed that TMSPM was grafted to the TiO2 nanoparticles, the agglomeration of nano-TiO2 was decreased, and surface of TiO2 nanoparticles became hydrophobic after modification by TMSPM.

中文翻译：

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甲基丙烯酸3-(三甲氧基甲硅烷基)丙酯硅烷偶联剂对二氧化钛纳米粒子的改性

本文介绍了用不同含量的甲基丙烯酸 3-(三甲氧基甲硅烷基)丙酯 (TMSPM) 偶联剂改性的 TiO2 纳米粒子 (nano-TiO2) 的一些特性、性质和形貌。处理过程在乙醇溶剂中于 50℃下进行，以氨为催化剂，使硅烷水解为硅烷醇。采用红外光谱、热重分析、透射电子显微镜、场发射扫描电子显微镜、动态光散射、紫外-可见光谱和X射线衍射等方法测定纳米TiO2处理前后的特性、性能。此外，还评估了 TMSPM 在 TiO2 纳米颗粒表面的接触角和接枝效率。