| 초록 |
This study introduces a new approach to control interdrop association by using conformation change of polymer chain. We used different molecular weight of poly (ethylene oxide)-b-poly (ε-caprolactone)-b-poly (ethylene oxide) and lecithin to architect the oil/water interface of nanoemulsion drops. Addition of lecithin to polymeric membrane led to dipole-dipole interaction between methoxy-terminal group of hydrophilic chain and phosphorylcholrine group of lecithin. Attractive nanoemulsion (ANE), hybridized with amphiphilic polymer and lecithin, displayed gel-like state with increased oil concentration due to dipolar interaction. Dense suspension rheology studies were conducted to confirm the attraction. In this study, we also found conformation state depending on temperature of hydrophilic chain at the interface was essential for controlling the interdrop percolation. These findings support the potential use of our ANE system over a wide range of applications. |
