초록 |
Pluronic triblock copolymers form various micellar nanostructures such as sphere, cylinder, and lamellae and high ordered nanostructures in aqueous solution and their phase behaviors are easily controlled by the external conditions such as additives, temperature or pH. In addition, because Pluronic triblock copolymers (PEOm-PPOn-PEOm) are highly biocompatible, they are applicable for the biotechnology such as drug delivery systems. Regarding to the change of external conditons, however, the self-assembly of the Pluonic block copolymer have not been fully exploited yet. Herein, the self-assembled nanostructure of block copolymers in aqueous solution have been studied by changing the various external conditions and by using SANS and SAXS. In this presentation, we will present unexpected self-assembled nanostructures of Pluronic triblock copolymers with different conidtions. |