| 초록 |
In a selective solvent for one of the blocks, diblock copolymers self-assemble into nanometer-sized micelles above the critical micelle concentration. These micelles can be coated onto substrates in short-range hexagonal order, which can be used as templates for nanoparticle syntheses. Moreover, from bimodal mixtures of diblock copolymer micelles, we were able to fabricate an ordered two-dimensional nanostructure, in which hexagonally ordered large micelles were surrounded by small micelles. We utilized the bimodal self-assembly of micelles as a structured template for nanoparticle syntheses. For example, we could synthesize iron oxide nanoparticles in the core of large micelles and zinc oxide nanoparticles in the core of small micelles, resulting in a mosaic nanopattern of two different types of nanoparticles having magnetic and optical functionalities. Thus, the methodology based on a bimodal mixture of diblock copolymer micelles can be applicable to various pairs of nanoparticles to generate multifunctional arrays. |
