Designer supramolecular polymers with specific molecular recognitions
Designer supramolecular polymers with specific molecular recognitions
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DOI：
10.1038/s41428-018-0126-7
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发表时间：
2018-09
期刊：
影响因子：
2.8
通讯作者：
T. Haino
中科院分区：
文献类型：
--
作者：
T. Haino
超分子聚合物是一类新兴的聚合物材料，表现出可设计性和灵活性。本文描述了如何利用我们的基于杯[5]芳烃、双卟啉和自组装胶囊的主客体结构来合成超分子聚合物。利用所设计的单体结构可以制备线状和二维的富勒烯纳米结构。卟啉供体-受体相互作用指导超分子聚合，导致线性卟啉聚合物的行为类似于传统的高分子链在溶液中，即使它们的结构是动态的和时间平均的。脆弱的超分子聚合物链被交联，以制备坚固的自立薄膜。超分子均聚物的序列重组是通过竞争性双位客体络合作用建立的。通过自分类行为制备了顺序可控的三元共聚物。通过接枝和非共价交联来调节聚合物主链的宏观性质和结构，从而实现超分子聚合物链以及聚合物链本身的后修饰。这些结构独特的聚合物是在纳米尺度上制造的。
Supramolecular polymers are members of an emergent class of polymer materials that exhibit designability and flexibility. This article describes how supramolecular polymers can be synthesized by taking advantage of our host–guest structures based on a calix[5]arene, a bisporphyrin, and a self-assembled capsule. Linear and two-dimensional fullerene nanostructures can be fabricated using the designed monomer structures. The porphyrin donor–acceptor interaction directs the supramolecular polymerization, resulting in linear porphyrin polymers that behave similarly to a conventional polymer chain in solution, even though their structures are dynamic and time-averaged. The fragile supramolecular polymer chains are cross-linked to fabricate a robust self-standing film. The sequence reorganization of the supramolecular homopolymer is established by competitive ditopic guest complexation. The sequence-controlled terpolymer is fabricated via self-sorting behavior. The postmodifications of the supramolecular polymer chains, as well as the polymer chains themselves, are achieved by grafting and non-covalent cross-linking to regulate the macroscopic properties and structures of the polymer main chains. These uniquely organized polymers are fabricated on a nanoscale.