Surfaces properties of silica gels modified with hydrophobic groups

Hydrophobisation of mesoporous γ-Al2O3 with organochlorosilanes—efficiency and structure

“…Various reports exist on successful modification of unsupported materials such as used for R e v i e w C o p y 4 chromatography [12][13][14][15] and of composite materials such as membranes, e.g. by fluorinated silanes [16][17][18], chloro-and alkoxyorganosilanes [19][20]. For catalyst preparation, a large number of post-modification procedures with various functional groups have been studied, e.g.…”

Fabrication of highly transparent and superhydrophobic silica-based surface by TEOS/PPG hybrid with adjustment of the pH value

“…Conventionally, in order to obtain the superhydrophobic films, modification of surface chemistry is always in conjunction with enhancement of the surface roughness. Among the low surface energy materials, barefluorinated (CF 3 ) material was replaced to modification of CH 3 -terminated surface [10,11] in order to increase the practicality, because it was cheaper and environmental protection substances. In the previous studies, superhydrophobic surfaces can be prepared by controlling the surface morphology with various approaches, such as: sol-gel method [9,12], organic/inorganic hybrid method [13][14][15], CVD method [16], electrochemical method [17], embossing method [18], plasma method [19], phase separation method [7,[20][21][22][23][24][25][26], template method [27][28][29] and others [30][31][32][33].…”

Increasing the hydrothermal stability of mesoporous SiO2 with methylchlorosilanes—a ‘structural’ study

“…Successful modification has been carried out of unsupported materials for chromatography [6][7][8][9] and of composite materials such as membranes, e.g. by fluorinated silanes [10,11], chloro-and organoalkoxysilanes [12,13]. Except for hydrophobisation, a large number of post-modification procedures with various functional groups have been studied for catalyst preparation with silica as the active phase carrier, e.g.…”