초록 |
In a selective solvent for one of the blocks, diblock copolymers self-assemble into nanometer-sized micelles consisting of a soluble corona and an insoluble core, typically in a spherical shape. In the case of micelles of a single kind of diblock copolymers, dependences of the aggregation number of copolymer molecules per micelle and the size of micelles on the chemical structure and molecular weight of each block have been relatively well characterized. For a mixture of two dissimilar diblock copolymers in a selective solvent, however, fundamental studies on their micellization have been started in recent years and their potential applications have not been yet introduced. In this presentation, we demonstrate manipulation of the fluorescence resonance energy transfer of fluorescent dyes in mixtures of diblock copolymer micelles. In addition, we report feasible creation of an ordered array of a mixture of diblock copolymer micelles having a bimodal size distribution. |