Hierarchical Composite Self-Sorted Supramolecular Gel Noodles
Hierarchical Composite Self-Sorted Supramolecular Gel Noodles
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DOI：
10.1002/adma.202211277
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发表时间：
2023-03-15
影响因子：
29.4
通讯作者：
Adams, Dave J.
中科院分区：
文献类型：
--
作者：
Marshall, Libby J.;Wallace, Matthew;Adams, Dave J.
多组分超分子体系与相应的单组分体系相比，可以获得不同的性质和新的行为。在此，使用了双组分系统，表明非胶凝组分改变了胶凝组分的组装，允许获得不能单独由胶凝组分形成的共组装结构。该系统的特点是跨越多个长度尺度，从分子水平的NMR和CD光谱的微观结构水平的SANS，最后到材料水平使用纳米压痕和流变学。通过利用通过添加第二组分获得的增强的机械性能，形成了具有比由单组分体系形成的那些更上级的机械性能的多组分面条。此外，非胶凝组分可以被触发以在多组分面条内结晶，从而允许制备新型的分层复合面条。
Multicomponent supramolecular systems can be used to achieve different properties and new behaviors compared to their corresponding single component systems. Here, a two-component system is used, showing that a non-gelling component modifies the assembly of the gelling component, allowing access to co-assembled structures that cannot be formed from the gelling component alone. The systems are characterized across multiple length scales, from the molecular level by NMR and CD spectroscopy to the microstructure level by SANS and finally to the material level using nanoindentation and rheology. By exploiting the enhanced mechanical properties achieved through addition of the second component, multicomponent noodles are formed with superior mechanical properties to those formed by the single-component system. Furthermore, the non-gelling component can be triggered to crystallize within the multicomponent noodles, allowing the preparation of new types of hierarchical composite noodles.