One-component air-stable iron catalysts for the ROCOP of epoxides and cyclic anhydrides

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2025-04-13 DOI:10.1016/j.eurpolymj.2025.113943

Marc Martínez de Sarasa Buchaca , María P. Caballero , Enrique Frances-Poveda , Marta Navarro , Pablo Salcedo-Abraira , Antonio Rodríguez-Diéguez , Juan Tejeda , Felipe de la Cruz-Martínez , Agustín Lara-Sánchez

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Abstract

Bio-sourced polyesters have been synthesized by ring-opening copolymerization reaction of epoxides and cyclic anhydrides using air-stable one-component heteroscorpionate Fe(III)-halide catalysts. Alternating polyesters from renewable resources such as limonene oxide, endo/exo-carvone oxides and succinic and citraconic anhydrides, have been obtained with reasonable molecular weight, narrow dispersity, and high percentage of ester linkages under air conditions. There are few examples of air-stable “one-component” metal-based catalysts in the literature, tending to rely on external additives, and the results hereby reported provide hope that air-stable friendly metals complexes can be effective systems in future sustainable polymerization research. The microstructure and thermal properties of the polyesters synthesized have been investigated and discussed, and for the amorphous copolymers, the T_g values have shown values from 17.5 °C to 128.5 °C.

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环氧化物和环酸酐ROCOP的单组分空气稳定铁催化剂

采用空气稳定的单组分异氰酸铁卤化物催化剂，通过环氧化物和环酸酐开环共聚反应合成了生物源聚酯。从可再生资源如柠檬烯氧化物、内/外香豆酮氧化物、琥珀酸酐和柠檬酸酸酐中获得了在空气条件下分子量合理、分散性窄、酯键率高的交变聚酯。文献中空气稳定的“单组分”金属基催化剂的例子很少，往往依赖于外部添加剂，本文报道的结果为空气稳定的友好金属配合物可以成为未来可持续聚合研究的有效体系提供了希望。对合成的聚酯的微观结构和热性能进行了研究和讨论，无定形共聚物的Tg值在17.5 ~ 128.5℃之间。

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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.