共聚物
手性(物理)
材料科学
对映体药物
超分子化学
聚合物
单体
高分子化学
聚合
超分子手性
分子
对映选择合成
有机化学
化学
手征异常
物理
催化作用
复合材料
量子力学
费米子
Nambu–Jona Lasinio模型
作者
Xinlin Zha,Guilin Xu,Yi Xiong,Zhong Yan,Ke Liu,Mufang Li,Yuanli Chen,Jing Lü,Dong Wang
标识
DOI:10.1002/adfm.202211956
摘要
Abstract Designing artificial systems to mimic chiral superstructures and exploring how achiral molecules precisely modulate their chirality is crucial to understand the origin of homochirality in nature. Herein, the tunability nature of supramolecular chirality is subtly applied to fabricate robust chiral covalent polymers with controlled macroscopic helicity. When using conventional supramolecular transcription methods to prepare chiral poly(m‐phenylenediamine), simply introducing various small amounts of achiral diaminopyridines (DAPs) to copolymerize with m‐phenylenediamine (MPD) enables the resulting chiral copolymers with adjustable helical configurations and chiroptical activities in an enantiopure template system. The strong hydrogen bonds between DAPs and the template molecules (( S )/( R )‐PhgC 16 ) proved to be the driving force for guiding the chiral polymerization mode of MPD. Impressively, the exquisite self‐sorting phenomenon is observed by tuning the stoichiometric ratio of DAP and ( R )‐PhgC 16 , where the as‐prepared copolymers with opposite helicity can exist simultaneously to form a double network structure and their chiroptical activity can be well regulated. In addition, based on such a copolymerization strategy, a conceptual library of helical functional copolymers is built with editable polymer types including conducting polymers and designable amine‐aldehyde condensation‐based polymers. This copolymerization‐mediated synthetic strategy may facilitate the development of chiral polymers with controlled morphologies and dynamic compositions.
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