chapter  2
39 Pages

Hydrophobic Organic-Inorganic Nanohybrids

WithChang-Sik Ha, Saravanan Nagappan

This chapter provides details of the various methods for the synthesis and fabrication of hydrophobic organic-inorganic nanohybrids. It focuses on the synthesis of hydrophobic organic-inorganic nanohybrids by the sol-gel method, emulsion synthesis, hydroand solvothermal methods, and surface grafting and modifications. The sol-gel method is used widely for the synthesis of hydrophobic organic-inorganic hybrid materials. The stronger hydrophobicity is due to the smaller number of polar surface functional groups at the surface, which may reduce the interactions between the hydrophobic coated surfaces and water droplets. The hydrothermal and solvothermal method are used generally for the synthesis of micro or nanoparticles with controlled size or the fabrication of a controlled surface morphology by the deposition of uniform micro or nanoparticles on a substrate. Spin coating is a type of coating method used to form a uniform thin film by spreading a hydrophilic or hydrophobic solution or suspension on a range of substrates by a physical force under a constant speed and pressure.