Preparation method of superhydrophobic nano particle, preparation method of transparent superhydrophobic surface and transparent superhydrophilic surface
The present invention relates to a method for producing a superhydrophobic nanoparticle, which secures eco-friendliness and increases economic feasibility and efficiency in a mass-production system, by simplifying a multi-stage production process into a single process in a simple way. The present invention further relates to a method for producing a transparent superhydrophobic surface and a method for producing a transparent superhydrophilic surface. To this end, the method for producing the superhydrophobic nanoparticle includes a step of combusting a liquid silicone resin by heating the same for less than 100 seconds at a temperature above an ignition point.
ABSTRACT Both hydrophobic and hydrophilic polymer matrices are used in pharmaceutical controlled-release formulations. In order to fully understand the functionality of the polymer in the drug delivery device, it is useful to study both the properties of the material before formulation and the behavior of the polymer in situ. A flow injection size exclusion chromatography approach is described that permits the rapid determination of polymer properties. Examples are given for the application of this method to real-time monitoring of the polymerization of poly(lactide-co-glycolide) and to the study of polymer release from swellable matrix tablets.