Wang Xinnan, Han Ting, Lam Jacky W Y, Tang Ben Zhong
Department of Chemistry, The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, and Institute of Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China.
Macromol Rapid Commun. 2021 Dec;42(24):e2100524. doi: 10.1002/marc.202100524. Epub 2021 Oct 28.
Stemming from unique ring structures, heterocyclic polymers exhibit distinguished electrical, mechanical, and photophysical properties and have been widely used in a variety of important applications. Along with the technological significance are the challenges in their synthesis. Traditional synthetic strategies toward heterocyclic polymers often require the direct attachment of heterocycles to polymer backbones, which are generally limited by the lack of suitable and low-cost heterocyclic monomers, tedious reaction process, difficulties in incorporation of multiple substitutents, etc. Alternatively, in situ construction of heterocyclic polymers via triple-bond based polymerization offers promising prospects. This review summarized the recent progress on polymerizations of triple-bond based monomers including alkynes, nitriles, and isonitriles that can in situ generate heterocyclic polymers. The properties and advanced applications of the derived heterocyclic polymers will also be discussed. Finally, the future perspectives and challenges in this field will be addressed.
由于独特的环状结构，杂环聚合物具有卓越的电学、机械和光物理性能，并已广泛应用于各种重要领域。伴随着其技术意义而来的是合成方面的挑战。传统的杂环聚合物合成策略通常需要将杂环直接连接到聚合物主链上，这通常受到缺乏合适且低成本的杂环单体、反应过程繁琐、引入多个取代基困难等限制。另外，通过基于三键的聚合原位构建杂环聚合物具有广阔的前景。本文综述了基于三键的单体（包括炔烃、腈和异腈）聚合的最新进展，这些单体可以原位生成杂环聚合物。还将讨论所得杂环聚合物的性能和先进应用。最后，将阐述该领域的未来前景和挑战。
