Current State-of-the-Art and Perspectives in the Design and Application of Vitrimeric Systems

Molecules, Год журнала: 2025, Номер 30(3), С. 569 - 569

Опубликована: Янв. 27, 2025

To fulfill the current circular economy concept, academic and industrial communities are devoting significant efforts to plastic materials’ end-of-life. Unlike thermoplastics, which easy recover re-valorize, recycling thermosets is still difficult challenging. Conversely, because of their network structure, thermosetting polymer systems exhibit peculiar features that make these materials preferable for several applications where high mechanical properties, chemical inertness, thermal stability, among others, demanded. In this view, vitrimers have quite recently attracted attention scientific community, as they can form dynamic covalent adaptive networks provide properties typical while keeping possibility being processed (and, therefore, mechanically recycled) beyond a certain temperature. This review aims an overview vitrimers, elucidating most recent advances posing some perspectives forthcoming years.

Язык: Английский

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Facile Strategy to Construct Eugenol‐Derived Bifunctionality Epoxy Monomer for Preparation of Thermosetting Resin System With Desired Performances

Journal of Applied Polymer Science, Год журнала: 2025, Номер 142(13)

Опубликована: Янв. 6, 2025

ABSTRACT Designing and preparing bio‐based epoxy monomers to substitute hazardous nonrenewable bisphenol A (BPA)‐type epoxide are important for the development of new resins under concept healthy sustainable concept. In this work, a “green” bifunctionality monomer derived from eugenol (EGE‐EP) was fabricated by epoxidation functionalization unsaturated double bond as well using epichlorohydrin epoxidize phenolic hydroxyl group. The effects different hardeners on properties EGE‐EP were analyzed, E51 cured with same employed reference. results indicate that EGE‐EP/hardeners present desired curing behavior, mechanical performances, thermal stability which comparable commercial E51/hardeners resin. Most importantly, all EP/hardeners samples exhibit lower onset temperature compared systems reflecting faster mixtures. Meanwhile, an obvious improvement char yield is found in contrast thus possessing potential flame retardancy applications. This study proposes innovative path prepare alternative BPA‐type epoxide, significance eco‐friendly high‐value utilization biomass.

Язык: Английский

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Self-Healing and Stimuli-Responsive Shape Memory in PCL/Epoxy/Tannic Acid Systems: Synergism of Bioepoxy and Biocuring Agents

Polymer, Год журнала: 2025, Номер unknown, С. 128131 - 128131

Опубликована: Фев. 1, 2025

Язык: Английский

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Catalyst-Free Covalent Adaptable Polyester Networks Based on Dissociative Transesterification Chemistry

Macromolecules, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

Язык: Английский

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A simple and versatile photothermal dual-curing system design based on phytophenol derivatives and thiol chemistry for potential electronic encapsulant application

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158245 - 158245

Опубликована: Дек. 1, 2024

Язык: Английский

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Heat-Resistant Shape Memory Fully Biobased Epoxy Resins with High Storage Modulus and Recycle Performance

ACS Applied Polymer Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 3, 2024

Combining high heat resistance and green sustainability is a great challenge in developing shape memory epoxy resins. Herein, starting from synthesizing fully biobased trifunctional compound (ER), kind of resin system (EFTx, where x the molar ratio carboxyl to groups) developed. The effects on structure properties EFTx resins were systematically investigated. Results show that cured have excellent resistance, mechanical properties, performance, recycle ability. As increases, glass transition temperature (Tg) initial thermal decomposition (Tdi) decrease while both self-healing efficiency remolding increase. Tg storage modulus each are much higher than those reported Among resins, EFT1.0 shows best-integrated performance; specifically, its Tg, Tdi, tensile strength, as 156 °C, 293 40.99 MPa, 90.5%, respectively, meanwhile it also has outstanding property reflected by fixation (Rf = 100%) recovery (Rr 97.8%) under bend-recovery experiments well Rf (93.2%) Rr (66.1%) after four cycles. integrated performance attributed their unique structures combine rigid stilbene structure, furan ring, abundant ester bonds.

Язык: Английский

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Three birds with one stone: Halogen- and phosphorus-free flame-retardant thermosetting resins with high heat resistance and excellent mechanical properties based on simple biobased feedstocks

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158851 - 158851

Опубликована: Дек. 1, 2024

Язык: Английский

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