Branched Cylindrical Micelle Structures from the Binary Blended System with High Molecular Weight Difference
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The self-assembly of amphiphilic block copolymers(BCPs) into precisely controlled nanostructure is required in many applications for the intended use. Blending is one of a convenient way to control the nanostructures. Here we report that binary blends of BCPs self-assemble into the various type of micelles. This polymer blending was carried out in a range of molecular weights, which is not covered much in previous studies, and it was possible to observe the unusual structural changes which were not seen at small molecular weight range due to its large molecular weight. These BCP blends not only allow the direct creation of various types of micelles, but also provide nanostructures of unprecedented morphology.