Issue 24, 2024

A one-pot approach towards polycarbonate-b-polyester block copolymers via chemoselective polymerization catalyzed by a one-component phosphonium borane Lewis pair

Abstract

Chemoselective polymerization from mixtures of monomers to control the polymer sequence is a challenging task. In this contribution, we describe a unique chemoselective polymerization affording predictable (co)polymer compositions from a mixture of monomers. The use of a one-component phosphonium borane Lewis pair and a mixture of L-lactide (L-LA), cyclohexene oxide (CHO) and CO2 enables the selective synthesis of either a polyester, polycarbonate or poly(carbonate-b-ester). The selectivity depends on the nature of the borane–oxygen functionality at the growing polymer chain end, and can be controlled by the addition of CO2 as an exogeneous switch reagent.

Graphical abstract: A one-pot approach towards polycarbonate-b-polyester block copolymers via chemoselective polymerization catalyzed by a one-component phosphonium borane Lewis pair

Supplementary files

Article information

Article type
Paper
Submitted
27 3 2024
Accepted
23 5 2024
First published
24 5 2024

Polym. Chem., 2024,15, 2476-2481

A one-pot approach towards polycarbonate-b-polyester block copolymers via chemoselective polymerization catalyzed by a one-component phosphonium borane Lewis pair

Y. Li, X. Kou, X. Wang, L. Xia and Z. Li, Polym. Chem., 2024, 15, 2476 DOI: 10.1039/D4PY00329B

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