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Updated: Feb 1, 2026

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

イソプロペニルボロネートの銅ベースの可逆失活ラジカル重合および臭素末端ポリマーの解重合

Tomoaki Kanazawa¹, Satoshi Akabane¹, Tsuyoshi Nishikawa¹

¹Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan.

Macromolecular rapid communications

|January 31, 2026

Abstract:

In this work, we investigated the depolymerization behavior of bromine-terminated poly(isopropenylboronic acid pinacol ester) [poly(IPBpin)] by copper catalyst in comparison with poly(methyl methacrylate) (PMMA), whose depolymerization behaviors have been extensively studied. Halogen-terminated poly(IPBpin)s were precisely synthesized via copper-mediated reversible deactivation radical polymerization with a bromide initiator. In the presence of a copper catalyst, the IPBpin polymers underwent depolymerization to regenerate the monomer (i.e., IPBpin) at temperatures below 100°C, in contrast to the inert behavior of bromine-terminated PMMA under the same conditions. The ceiling temperature was determined to be 76°C (1.0 M), which was much lower than that of PMMA (202°C, 1.0 M). Notably, despite exhibiting superior depolymerizability to PMMA, the IPBpin polymers showed comparable or even higher thermal stability.

キーワード:

原子移動ラジカル重合ホウ素解重合ラジカル重合可逆失活ラジカル重合

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