Hierarchical Nanowires Synthesized by Supramolecular Stepwise Polymerization.
Hierarchical Nanowires Synthesized by Supramolecular Stepwise Polymerization.
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DOI：
10.1002/anie.201607059
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发表时间：
2016-09
影响因子：
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通讯作者：
Zeliang Zhuang;Tao Jiang;Jiaping Lin;Liang Gao;Chaoying Yang;Liquan Wang;Chunhua Cai
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文献类型：
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作者：
Zeliang Zhuang;Tao Jiang;Jiaping Lin;Liang Gao;Chaoying Yang;Liquan Wang;Chunhua Cai
预组装聚集体的自组织是一种有效的分步策略，用于制造具有第二层次结构的纳米结构。在此，我们报告，各向异性的纺锤状胶束，自组装的多肽接枝共聚物与刚性的骨干，可以作为理想的预组装的亚基构建一维材料的分级结构。通过添加有机溶剂并对水进行透析，可以在纺锤状胶束的末端产生反应点，其随后驱动各向异性胶束以链中的杆生长，并最终以逐步的方式自组装成分级纳米线。第二个自组装步骤是类似于分步聚合的分级过程。通过这种新型的聚合反应可以精确地合成多级结构。这些纳米结构可以通过反应点的活性来定制，这取决于溶剂的性质和分子结构。
The self-organization of pre-assembled aggregates is an efficient stepwise strategy for fabricating nanostructures with a second level of hierarchy. Herein, we report that anisotropic spindle-like micelles, self-assembled from polypeptide graft copolymers with rigid backbones, can serve as ideal pre-assembled subunits for constructing one-dimensional materials with hierarchical structures. By adding organic solvents and dialyzing against water, reactive points can be generated at the ends of the spindle-like micelles, which subsequently drive the anisotropic micelles to grow as rods in a chain and eventually self-assemble into hierarchical nanowires in a stepwise manner. The second self-assembly step is a hierarchical process that resembles step polymerization. Hierarchical structures can be precisely synthesized by this new type of polymerization. These nanostructures can be tailored by the activity of the reactive points, which depends on the nature of the solvent and the molecular architecture.