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

Chemical Reviews, Год журнала: 2024, Номер unknown

Опубликована: Окт. 25, 2024

The copolymerization of CO

Язык: Английский

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

Macromolecules, Год журнала: 2025, Номер unknown

Опубликована: Янв. 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.

Язык: Английский

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

European Polymer Journal, Год журнала: 2025, Номер unknown, С. 113912 - 113912

Опубликована: Апрель 1, 2025

Язык: Английский

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

Chinese Journal of Polymer Science, Год журнала: 2024, Номер unknown

Опубликована: Дек. 25, 2024

Язык: Английский

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