| 초록 |
Amphiphilic molecules containing both hydrophilic and hydrophobic moieties aggregate into micelles in aqueous medium, and further self-assemble into lyotropic mesophases such as vesicles, cylinders, and lamellae at higher concentration. Amphiphilic random copolymers consisting of non-ionic hydrophilic and aliphatic alkyl side chains are known to fold into single chain micelles in a dilute aqueous solution. Here, we report unique mesophases found in concentrated amphiphilic random copolymers solutions in water. Small angle X-ray scattering study suggests the phase behavior is driven by both the hydrophilic-phobic balance and the backbone length scale. Origin of the complex mesostructure formation is attributed to the thermodynamic drive to order at the macromolecular and molecular levels. |
