Synthesis and Characterization of Hybrid Materials Consisting of n-octadecyltriethoxysilane by Using n-Hexadecylamine as Surfactant and Q 0 and T 0 Cross-Linkers
Novel hybrid xerogel materials were synthesized by a sol-gel procedure.
n-octadecyltriethoxysilane was co-condensed with and without different cross-linkers using
Q 0 and T 0 mono-functionalized organosilanes in the presence of n-hexadecylamine with
different hydroxyl silica functional groups at the surface. These polymer networks have
shown new properties, for example, a high degree of cross-linking and hydrolysis. Two
different synthesis steps were carried out: simple self-assembly followed by sol-gel
transition and precipitation of homogenous sols. Due to the lack of solubility of these
materials, the compositions of the new materials were determined by infrared spectroscopy,
13 C and 29 Si CP/MAS NMR spectroscopy and scanning electron microscopy.