共价键
连接器
制作
纳米技术
超分子化学
聚合物
共价有机骨架
动态共价化学
网络共价键合
材料科学
化学
高分子科学
分子
计算机科学
有机化学
医学
替代医学
病理
操作系统
作者
G. Shreeraj,Arkaprabha Giri,Abhijit Patra
出处
期刊:ChemNanoMat
[Wiley]
日期:2023-11-10
卷期号:10 (1)
被引量:1
标识
DOI:10.1002/cnma.202300398
摘要
Abstract Covalent organic frameworks (COFs) are a fast‐developing family of porous organic materials that have received substantial research interest during the last two decades. Dynamic covalent chemistry (DCC) is the cornerstone of COF fabrication. DCC is a process that entails reversible bond breaking‐reforming under equilibrium to attain the thermodynamically most stable structure. Due to the reversible nature of the covalent linkages, the building blocks of pre‐synthesized COF or pre‐assembled chemical entities, like network polymers and supramolecular hosts, can be replaced postsynthetically under appropriate reaction conditions. The technique is known as postsynthetic linker exchange (PLE). PLE provides an easy way to introduce functional building blocks into the COF backbone and control its chemical and physical properties. In this article, we have highlighted the recent advancements (from 2017 to 2023) in the postsynthetic linker exchange strategy for constructing highly crystalline and porous COFs that are often unattainable via de novo fabrication. The mechanistic insights of the linker exchange process for transforming various parent entities, such as COFs, amorphous covalent organic networks, linear polymers, and molecular cages to daughter COFs, have been deliberated with fascinating examples. We have also outlined some future avenues for applying the PLE process for the large‐scale fabrication of highly crystalline COFs for real‐time applications.
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