氨酚铁配合物催化环氧环己烷与环酸酐共聚研究

doi:10.11896/cldb.24060200

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Abstract Ring-opening copolymerization (ROCOP) of epoxides and cyclic anhydrides is a powerful approach to synthesize polyesters with innovative structures and properties. In this work, the ROCOP of phthalic anhydride (PA), exo-norbornene anhydride (exo-NA) and cyclohexene oxide (CHO) has been achieved by modulating the ratio of the two under the mediation of the binary catalytic system bis(triphenylphosphine)iminium chloride (PPNCl)/iron aminotriphenolate complexes (APFe). The reaction was followed by nuclear magnetic resonance spectroscopy (¹H NMR) and gel permeation chromatography (GPC), it was found that the reaction mechanism would change from cationic polymerization to coordination anionic polymerization, and the reaction activity would show a “V” pattern of decreasing and then increasing. The inflection point of the reaction would vary due to the different ability of the different anhydrides to coordinate with the metal complexes and insert into the growing chain. The ring-opening copolymerization of 9, 10-dihydroanthracene-9, 10-α, β-succinic anhydride (HASA) and CHO was catalyzed using a binary system composed of different types of cocatalyst tetrabutylammonium chloride (TBACl) and APFe. A shift in the reactivity was also observed. Structural characterization of the complexes using ultraviolet-visible (UV-Vis) spectroscopy confirms that the nucleophilicity of the cocatalyst affects the shift in the reaction mechanism.

Key words： polyester ring-opening copolymerization iron aminotriphenolate complexes epoxide cyclic anhydride

Published: 25 June 2025 Online: 2025-06-19

CLC number:

TQ31

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	Articles by authors
	YANG Anran
	DUAN Wensheng
	WU Xianmin
	DING Huining
	WEN Yeqian
	LIU Guodong
	LIU Binyuan

Cite this article:

YANG Anran,DUAN Wensheng,WU Xianmin, et al. Copolymerization of Cyclohexene Oxide with Cyclic Anhydride Catalyzed by Iron Aminotriphenolate Complexes[J]. Materials Reports, 2025, 39(12): 24060200-5.

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https://www.mater-rep.com/EN/10.11896/cldb.24060200 OR https://www.mater-rep.com/EN/Y2025/V39/I12/24060200

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