Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 13, Issue 5, Pages 6279-6291Publisher
MDPI
DOI: 10.3390/ijms13056279
Keywords
sol-gel; solid state NMR; cross-linkers; stationary phases
Funding
- King Saud University, Deanship of Scientific Research, College of Science Research Center
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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, C-13 and Si-29 CP/MAS NMR spectroscopy and scanning electron microscopy.
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