Evolution of Copolymers of Epoxides and CO₂: Catalysts, Monomers, Architectures, and Applications

Chemical Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 25, 2024

The copolymerization of CO

Language: Английский

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Dual Kinetic Control of Polycarbonate Sequences via Breaking Catalysis Symmetry Using Dual Biomimetic Organoboron Catalysts

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

Biomimetic catalysis is extensively used in chemical synthesis targeting to achieve satisfactory reactivities. However, artificial catalysts possessing outstanding sequence controllability over macromolecular structures that could be precisely achieved nature remain scarce, especially the preparation of complex macromolecules featuring kinetically trapped structures. Herein, we report a dual biomimetic catalyst design for precise regulation controlled CO2/epoxide copolymerization. The as-synthesized dissymmetric organoboron possess microenvironments, which differentiate transfer rates polymer alkoxy anions between two boron centers, thus enabling regulation. Consequently, high −ABB–/–AB– ratio 92% was achieved, up 3.3 times analogous symmetric (Nat. Synth. 2022, 1, 892–901). Detailed mechanistic studies reveal kinetic modulations are responsible This tactic should inspire effective designs transformations.

Language: Английский

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Copolymerization of styrene oxide with CO2 via modular optimization of bifunctional organoborane catalysts

European Polymer Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113912 - 113912

Published: April 1, 2025

Language: Английский

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CO2-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance

Chinese Journal of Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 25, 2024

Language: Английский

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