| 초록 |
we have succeeded in obtaining emulsion droplets and hollow microspheres through self-assembly of polymers in W/O emulsion method. The molecular behavior of PVP led to the formation of emulsion droplets possessing a hydrophobic part of PVP core surrounded by a hydrophilic part of PVP shell with aqueous layer. The central layer, composed of alkyl chain in PVP, fix the inner oil droplets to core. Also, the molecular behavior of PEG led to the formation of multiple emulsion possessing a hydrogen bonding with aqueous phase. Because this route is based on common and nonexpensive polymer products and the processing is simple, it may have great potential for further applications in fabricating supramolecuar materials for various fields such as cosmetics, catalysis, composite materials, drug encapulation and controlled release. |
