Preparation, purification, and characterization of aminopropyl-functionalized silica sol

• Published in: Journal of colloid and interface science Vol. 390; no. 1; pp. 34 - 40
• Main Authors: Pálmai, Marcell, Nagy, Lívia Naszályi, Mihály, Judith, Varga, Zoltán, Tárkányi, Gábor, Mizsei, Réka, Szigyártó, Imola Csilla, Kiss, Teréz, Kremmer, Tibor, Bóta, Attila
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 15.01.2013; Elsevier
• Subjects: 3-Aminopropyl(diethoxy)methylsilane; acetic acid; Acetic Acid - chemistry; adsorption; Amines - chemistry; Aminopropyl silica nanoparticles; centrifugation; Chemistry; Colloidal state and disperse state; Colloids; dialysis; ethanol; Ethanol - chemistry; Exact sciences and technology; Fourier transform infrared spectroscopy; General and physical chemistry; light scattering; nanoparticles; nuclear magnetic resonance spectroscopy; Particle Size; Physical and chemical studies. Granulometry. Electrokinetic phenomena; purification methods; Silanes - chemistry; silica; Silicon Dioxide - chemistry; Silylation in sol; solvents; stable isotopes; Surface modification; transmission electron microscopy; ultrafiltration; X-radiation; zeta potential; Surface modification; Aminopropyl silica nanoparticles; Silylation in sol; 3-Aminopropyl(diethoxy)methylsilane; Characterization; Modification; Binary compound; Purification; Nanoparticle; Preparation; Silylation; Silica

[Display omitted] ► New synthesis procedure for the aminopropyl-modification of 20nm diameter silica nanoparticles. ► Purification conditions were optimized to maximize stability. ► The mean particle diameter did not change during the surface modification reaction. ► A covalent submonolayer function...