手性(物理)
共价键
动态共价化学
超分子手性
超分子化学
聚合物
自组装
材料科学
组合化学
化学
智能材料
纳米技术
有机化学
分子
手征对称破缺
物理
量子力学
Nambu–Jona Lasinio模型
夸克
作者
Yuquan Guo,Xiaoxiao Cheng,Zixiang He,Zhenyang Zhou,Tengfei Miao,Wei Zhang
标识
DOI:10.1002/anie.202312259
摘要
The construction of chiral superstructures through the self-assembly of non-chiral polymers usually relies on the interplay of multiple non-covalent bonds, which is significantly limited by the memory ability of induced chirality. Although the introduction of covalent crosslinking can undoubtedly enhance the stability of chiral superstructures, the concurrent strong constraining effect hinders the application of chirality-smart materials. To address this issue, we have made a first attempt at the reversible fixation of supramolecular chirality by introducing dynamic covalent crosslinking into the chiral self-assembly of side-chain polymers. After chiral induction, the reversible [2+2] cycloaddition reaction of the cinnamate group in the polymer chains can be further controlled by light to manipulate inter-chain crosslinking and decrosslinking. Based on this photo-programmable and dynamic chiral fixation strategy, a novel pattern-embedded storage mechanism of chiral polymeric materials was established for the first time.
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