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Issue 8, 2021
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Imidazole-based Cu(i)-catalyzed click polymerization of diazides and diynes under mild conditions

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Abstract

The exploration of new efficient catalytic systems is of significance for the promotion of azide–alkyne click polymerization (AACP). In this work, [Cu(Im12)2][CuBr2] (Cu-Im) with a fast and single-step synthesis was proved to be an effective catalyst for AACP. The polymerizations proceeded smoothly in THF at 30 °C in the presence of Cu-Im, and soluble and thermally stable polytriazoles (PTAs) with high molecular weights (Mw up to 32 000) were produced in high yields (up to 94%) in as short as 4 h. The resultant polymers showed high refractive indices. Moreover, by introducing fluorene moieties into polymeric chains, the resultant PTAs could be applied in explosives detection. The high efficiency and ready availability of reagents will make this imidazole-based Cu(I)-catalyzed AACP immediately useful for the construction of functional polymers.

Graphical abstract: Imidazole-based Cu(i)-catalyzed click polymerization of diazides and diynes under mild conditions

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Supplementary files

Article information


Submitted
07 Dec 2020
Accepted
17 Jan 2021
First published
18 Jan 2021

Polym. Chem., 2021,12, 1078-1085
Article type
Paper

Imidazole-based Cu(I)-catalyzed click polymerization of diazides and diynes under mild conditions

B. Li, J. Wang, A. Qin and B. Z. Tang, Polym. Chem., 2021, 12, 1078
DOI: 10.1039/D0PY01675F

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