Issue 33, 2022

Ruthenium-catalyzed diazoacetate/cyclooctene metathesis copolymerization

Abstract

As a powerful synthetic tool, ruthenium-catalyzed ring-opening metathesis polymerization (ROMP) has been widely used to prepare diverse polymers. In this paper, we demonstrated the polymerization of cyclooctene in the presence of diazoacetate or (bis)diazoacetate compounds. For the copolymerization of cyclooctene and diazoacetate, well-defined telechelic polymers bearing –COOEt, –COOBn or –TMS groups were presented along with efficient tuning of the polymer molecular weight. When using (bis)diazoacetate compounds, various random functionalized copolymers were produced with different functional groups and incorporation ratios (up to 11%). With a NaBArF cocatalyst, the conversion of diazoacetates or (bis)diazoacetates was significantly promoted, and the mechanism was also explored during the polymerization. After hydrogenation, polar functionalized high-density polyethylene was accessed which exhibited good properties because of the introduction of ester groups in the main chain.

Graphical abstract: Ruthenium-catalyzed diazoacetate/cyclooctene metathesis copolymerization

Supplementary files

Article information

Article type
Paper
Submitted
08 Jul 2022
Accepted
29 Jul 2022
First published
30 Jul 2022

Polym. Chem., 2022,13, 4782-4788

Ruthenium-catalyzed diazoacetate/cyclooctene metathesis copolymerization

M. Ji, S. Zheng, C. Zou and M. Chen, Polym. Chem., 2022, 13, 4782 DOI: 10.1039/D2PY00886F

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