Copper-based ionic liquid-catalyzed click polymerization of diazides and diynes toward functional polytriazoles for sensing applications,Polymer Chemistry

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Copper-based ionic liquid-catalyzed click polymerization of diazides and diynes toward functional polytriazoles for sensing applications
Polymer Chemistry ( IF 4.1 ) Pub Date : 2019/12/18 , DOI: 10.1039/c9py01443h
Baixue Li _{1,

2,

3,

4,

5} , Rong Hu _{1,

2,

3,

4,

5} , Anjun Qin _{1,

2,

3,

4,

5} , Ben Zhong Tang _{1,

2,

3,

4,

5}

Affiliation

Click polymerizations of azides and alkynes catalyzed by Cu(I) species have been widely studied and play a significant role in polymer synthesis. In these approaches, long reaction time and/or elevated temperature are generally required. Fabrication of new catalytic systems with higher efficiency and an energy saving feature is still a key challenge. In this work, an efficient copper-based ionic liquid (Cu-IL) is facilely prepared and used to catalyze the azide–alkyne click polymerization under mild reaction conditions. Soluble and thermally stable 1,4-regioregular polytriazoles (PTAs) with satisfactory molecular weights (up to 56 100) are readily synthesized in high yields (up to 95%). Thanks to its intense blue fluorescence and excellent water-solubility, the resultant ionic PTA could be applied for sensitive explosive detection, selective Fe³⁺ ion recognition and specific bioimaging in its aqueous solution. Thus, this work not only establishes a powerful Cu-IL-catalyzed azide–alkyne click polymerization but also provides PTAs with versatile properties.

中文翻译：

叠氮化物和二炔向功能性聚三唑的铜基离子液体催化点击聚合

Cu（I）催化的叠氮化物和炔烃的点击聚合物种已被广泛研究，并在聚合物合成中起重要作用。在这些方法中，通常需要较长的反应时间和/或升高的温度。制造具有更高效率和节能特性的新型催化系统仍然是一个关键的挑战。在这项工作中，容易制备一种高效的铜基离子液体（Cu-IL），并用于在温和的反应条件下催化叠氮化物-炔烃的点击聚合反应。具有令人满意的分子量（高达56 100）的可溶性和热稳定的1,4-区域规则的聚三唑（PTA）很容易以高收率（高达95％）合成。由于其强烈的蓝色荧光和出色的水溶性，所得的离子型PTA可用于灵敏的爆炸物检测，选择性的Fe ³⁺离子识别和水溶液中的特定生物成像。因此，这项工作不仅建立了强大的Cu-IL催化的叠氮化物-炔烃点击聚合反应，而且还为PTA提供了多种用途。

更新日期：2020-03-24

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