Rapid Access to Diverse Multicomponent Hierarchical Nanostructures from Mixed‐Graft Block Copolymers
Rapid Access to Diverse Multicomponent Hierarchical Nanostructures from Mixed‐Graft Block Copolymers
复制标题
从混合接枝嵌段共聚物快速获得多种多组分分层纳米结构
DOI：
10.1002/anie.202210067
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Zhong, Mingjiang
中科院分区：
文献类型：
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作者：
Liang, Ruiqi;Song, Qingliang;Li, Ruipeng;Le, An N.;Fu, Xiaowei;Xue, Yazhen;Ji, Xiaoyu;Li, Weihua;Zhong, Mingjiang
由分子构件组装而成的多组分纳米结构材料由于其精确集成的多功能性而受到广泛关注。然而，这些具有理想组成和形态的材料的发现受到其低合成可扩展性和给定构建块的窄结构调整窗口的限制。在这里，我们报告了一种基于一些易于访问的构建块的可扩展且面向多样性的分层结构纳米材料的合成方法。通过三种或四种大分子单体的开环复分解共聚制备了含有序列限定侧链的混合接枝嵌段共聚物。分子内定义的界面促进了有序分层结构的形成，其晶格尺寸在多个长度尺度上可调。同一组大分子单体以不同的方式排列和组合，从而在所得结构中提供了不同的形态。
Multicomponent nanostructured materials assembled from molecular building blocks received wide attention due to their precisely integrated multifunctionalities. However, discovery of these materials with desirable composition and morphology was limited by their low synthetic scalability and narrow structural tuning window with given building blocks. Here, we report a scalable and diversity‐oriented synthetic approach to hierarchically structured nanomaterials based on a few readily accessible building blocks. Mixed‐graft block copolymers containing sequence‐defined side chains were prepared through ring‐opening metathesis copolymerization of three or four types of macromonomers. Intramolecularly defined interfaces promoted the formation of ordered hierarchical structures with lattice sizes tunable across multiple length scales. The same set of macromonomers were arranged and combined in different ways, providing access to diverse morphologies in the resultant structures.