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The surface energetic heterogeneity of Aerosil OX50 silica is investigated before and after modification by the grafting of various amounts of hydrophobic hexadecyltrichlorosilane (HTS). A detailed study is conducted to obtain new insight into the grafting process using volumetric techniques based on molecular probing. The surface of the silica particles has been thoroughly characterized using classical...
This paper addresses the surface modification of TiO2 nanoparticles with n-(6-aminohexyl)aminopropyltrimethoxysilane (AHAPS) using various initial aminosilane concentrations. The main objective of this article is to show experimentally the importance of the physisorption during the grafting process. The distinction between chemisorbed and physisorbed aminosilane molecules on TiO2 is thoroughly analyzed...
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