双官能团有机硼烷催化剂模块化优化氧化苯乙烯与CO2的共聚

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2025-04-04 DOI:10.1016/j.eurpolymj.2025.113912

Shuo Zhao, Cheng-Kai Xu, Yue Gong, Guan-Wen Yang, Guang-Peng Wu

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引用次数: 0

摘要

二氧化碳和环氧化物的开环共聚（ROCOP）面临着巨大的挑战，主要是由于形成环状碳酸盐的趋势，特别是当环氧化物含有吸电子基团时，如苯乙烯氧化物（SO）。基于我们之前对有机硼烷和阳离子组分的研究，我们设计了一系列新的四核、三核和双核双功能有机硼烷催化剂。这些催化剂在温和条件下催化SO/CO2共聚，聚合物选择性达到99%以上。核磁共振31P谱分析表明，三核和双核有机硼烷催化剂催化性能的差异源于其整体路易斯酸度的变化。这些对有机硼烷催化剂优化的见解有望推动未来更先进催化剂的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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

The ring-opening copolymerization (ROCOP) of CO₂ and epoxides presents significant challenges, primarily due to the tendency to form cyclic carbonates, especially when the epoxide contains electron-withdrawing groups, such as styrene oxide (SO). Building upon our previous research on organoborane and cationic components, we designed a series of novel tetranuclear, trinuclear, and dinuclear bifunctional organoborane catalysts. These catalysts facilitated SO/CO₂ copolymerization with remarkable polymer selectivity exceeding 99 % under mild conditions. ³¹P NMR spectroscopy revealed that the discrepancies in catalytic performance between trinuclear and dinuclear organoborane catalysts stem from variations in their overall Lewis acidity. These insights into the optimization of organoborane catalysts are expected to drive the development of more advanced catalysts in the future.

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.