Recent Advances in Alkyne‐Based Multicomponent Polymerizations

Abstract

Multicomponent polymerization (MCP) is an emerging field of polymer chemistry, which inherits a series of advantages from multicomponent reactions (MCRs), such as high efficiency, mild reaction condition, atom economy, and operational simplicity. Great efforts have been made to develop MCRs into MCPs, providing an easy access to a library of polymers with facilely tunable structures. However, MCPs of alkynes with large potential and wide prospects in the preparation of optoelectronic materials are still in its infancy, despite of the rich chemistry of alkynes. In this paper, the recent development of alkyne‐based MCPs is summarized. The multicomponent tandem polymerization with two or more steps combined in a one‐pot procedure is presented, providing an efficient and convenient new approach for the synthesis of conjugated polymers. The new trend of pursuing catalyst‐free “green” chemistry in MCPs is also introduced.

Solid State and Aggregation Induced Emissive Chromophores by Multi‐component Syntheses

“…[14a] Starting from acid chlorides, alkynes, and ethyl mercapto acetate threecomponent coupling-Fiesselmann syntheses of 2,4-disubstituted thiophenes are quickly accessible. [31] This synthetic concept was also successfully adapted to alkyne based multi-component polymerizations [32] with tetraphenylethene as a dialkyne component to access regioregular polymers with enhanced AIE properties of the bright green emissive nanoaggregates. [31] This synthetic concept was also successfully adapted to alkyne based multi-component polymerizations [32] with tetraphenylethene as a dialkyne component to access regioregular polymers with enhanced AIE properties of the bright green emissive nanoaggregates.…”

Chitosan: An Upgraded Polysaccharide Waste for Organocatalysis

“…[42] In that case this design reminds one of a phasetransfer catalyst in principal, although its mode of action could be different. [42] In that case this design reminds one of a phasetransfer catalyst in principal, although its mode of action could be different.…”

Functional Polyselenoureas for Selective Gold Recovery Prepared from Catalyst-Free Multicomponent Polymerizations of Elemental Selenium

“…Multicomponent polymerizations (MCPs), are powerful tools for the conversion of simple monomers to functional polymer materials with high atom economy and simple operation, and enjoy unique advantages such as great structural diversity of the polymer products, the direct construction of new functional units with multiple types of newly built covalent bonds, and high synthetic efficiency. [26][27][28][29][30] In 2015, we reported the use of a catalyst-free MCP of sulfur, aromatic diynes, and aliphatic diamines to convert elemental sulfur to polythioamides with well-defined structures, good solubility, high yields, and high M w s, at 100°C. 31 Later, sulfur conversion at room temperature (RT) was realized further through a rapid catalyst-free MCP of sulfur, diisocyanides, and aliphatic diamines to prepare 16 different functional polythioureas with good solubility, well-defined structures, and high M w s in high yields up to 95%.…”