Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States.
J Am Chem Soc. 2011 Feb 9;133(5):1228-31. doi: 10.1021/ja109191z. Epub 2011 Jan 4.
We have developed a hierarchical process that combines linear triblock copolymers into concentric globular subunits through strong chemical bonds and is followed by their supramolecular assembly via weak noncovalent interactions to afford one-dimensionally assembled, dynamic cylindrical nanostructures. The molecular brush architecture forces triblock copolymers to adopt intramolecular interactions within confined frameworks and then drives their intermolecular interactions in the mixtures of organic solvent and water. In contrast, the triblock copolymers, when not preconnected into the molecular brush architectures, organize only into globular assemblies.
我们开发了一个层级过程，通过强化学键将线性三嵌段共聚物组合成同心的球状亚基，然后通过弱非共价相互作用进行超分子组装，得到一维组装的动态圆柱状纳米结构。分子刷结构迫使三嵌段共聚物在受限的框架内采用分子内相互作用，然后在有机溶剂和水的混合物中驱动它们的分子间相互作用。相比之下，当三嵌段共聚物没有预先连接成分子刷结构时，它们只能组装成球状聚集体。
