Synthesis and Characterization of Hybrid Materials Consisting of n-octadecyltriethoxysilane by Using n-Hexadecylamine as Surfactant and Q0 and T0 Cross-Linkers

• Main Authors: Nabil Al-Zaqri, Mohammed Al-Nuri, Ahmed Boshaala, Ahmad Husein, Saud Al-Resayes, Omar Abd-Elkader H, Ismail Warad, Taibi Ben Hadda
• Format: Article
• Language: English
• Published: MDPI AG 2012-05-01
• Series: International Journal of Molecular Sciences
• Subjects: sol-gel; solid state NMR; cross-linkers; stationary phases
• Online Access: http://www.mdpi.com/1422-0067/13/5/6279

Novel hybrid xerogel materials were synthesized by a sol-gel procedure. <em>n</em><em>-</em>octadecyltriethoxysilane was co-condensed with and without different cross-linkers using <strong>Q<sup>0</sup></strong> and <strong>T<sup>0</sup></strong> mono-functionalized organosilanes in the presence of <em>n</em>-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, <sup>13</sup>C and <sup>29</sup>Si CP/MAS NMR spectroscopy and scanning electron microscopy.<strong></strong>