| 초록 |
This study demonstrates a new method for the synthesis of organic-inorganic hybrid particles composed of inorganic silica shell and organic core particles. The organic core particle is prepared with a uniform size using droplet-based microfluidic technology. After the generation of droplets in the microfluidic device, the droplets are photo-polymerized as particles by ultraviolet irradiation at the ends of the microfluidic channels. The core particle is coated with the nano complex composed of polyallylamine hydrochloride (PAH) and phosphate ion (Pi) through strong non-covalent interaction such as hydrogen bonding and electrostatic interaction under optimized pH conditions. The polyamine nano complex rapidly induces the condensation reaction of silicic acid through the arranged amine groups of the main chain of PAH. Therefore, through this method, organic-inorganic hybrid particles coated with inorganic silica nanoparticles on the organic core could be prepared. Finally, we demonstrate the synthesis of organic- inorganic hybrid particles in a short time under ambient and environmentally friendly condition. |
