Fully biomass-derived polyurethane based on dynamic imine with self-healing, rapid degradability, and editable shape memory capabilities

Xu, Xiaobo; Ma, Xiaozhen; Cui, Minghui; Zhao, Honglong; Stott, Nathan E.; Zhu, Jin; Yan, Ning; Chen, Jing

doi:10.1016/j.cej.2023.147823

Cited by 26 publications

(1 citation statement)

References 34 publications

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“…Recently covalent adaptable networks (CANs) have been proposed as a sustainable alternative to nonrecyclable thermoset materials, CANs are polymer networks with reversible covalent cross-links that are reversible when exposed to external stimuli (e.g., heat and light). − This allows the material to be mechanically strong under environmental conditions but reprocessable and recyclable when activated by appropriate stimuli. The introduction of exchangeable cross-linking in thermoset materials allows for favorable properties such as self-healing, remodelability, and recyclability while retaining properties such as thermal and chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Transparent, Self-Healing, and Recyclable Biomass-Based Covalent Adaptable Networks Formed via Magnolol and Dynamic Boronate Ester

Zhang,

Zhai,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Introducing renewable compounds and dynamic covalent bonds into polymeric networks to achieve sustainability, self-healing, and reprocessability is of great significance in reducing the carbon footprint of polymeric materials. This study developed sustainable biomass covalent adaptable networks (BCANs) using renewable magnolol and dynamic phenylborate. First, a prepolymer was obtained by using the phenolic hydroxyl group on magnolol and diglycidyl ether for epoxy ring opening addition polymerization. Then, the allyl group of magnolol was used to perform a thiol−ene photochemical reaction with a dithiol containing boronic ester; ultimately, magnolol-based sustainable BCANs were prepared. The dynamically reversible boron ester bonds in the networks enable both the recyclability and self-healing properties, enhancing their application scope in different scenarios. Additionally, the study confirms that after undergoing four manmade damages, the BCANs' self-healing capability remained almost unchanged, and even the Young's modulus showed improvement. These BCANs demonstrate significant potential in sustainability by featuring monomer renewability, self-healing, and recyclability, characteristics that are critically valuable in replacing petroleumbased thermosets.

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Section: Introductionmentioning

confidence: 99%

Transparent, Self-Healing, and Recyclable Biomass-Based Covalent Adaptable Networks Formed via Magnolol and Dynamic Boronate Ester

Zhang,

Zhai,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Mimosa‐Inspired Body Temperature‐Responsive Shape Memory Polymer Networks: High Energy Densities and Multi‐Recyclability

Kong,

Tan,

Zhang

et al. 2024

Advanced Science

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Inspired by the Mimosa plant, this study herein develops a unique dynamic shape memory polymer (SMP) network capable of transitioning from hard to pliable with heat, featuring reversible actuation, self‐healing, recyclability, and degradability. This material is adept at simulating the functionalities of artificial muscles for a variety of tasks, with a remarkable specific energy density of 1.8 J g−1—≈46 times higher than that of human skeletal muscle. As an intelligent manipulator, it demonstrates remarkable proficiency in identifying and handling items at high temperatures. Its suitable rate of shape recovery around human body temperature indicates its promising utility as an implant material for addressing acute obstructions. The dynamic covalent bonding within the network structure not only provides excellent resistance to solvents but also bestows remarkable abilities for self‐healing, reprocessing, and degradation. These attributes significantly boost its practicality and environmental sustainability. Anticipated to promote advancements in the sectors of biomedical devices, soft robotics, and smart actuators, this SMP network represents a forward leap in simulating artificial muscles, marking a stride toward the future of adaptive and sustainable technology.

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Sustainable poly(imide‐imide) vitrimer based on multiple dynamic covalent bonds

Zhao,

Zhang,

Bai

et al. 2024

J of Applied Polymer Sci

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Polyimide materials with high mechanical strength are widely used in various fields, but pose certain challenges in achieving sustainable material utilization. A poly(imide‐imide) vitrimer material (ADTA) based on multiple dynamic covalent bonds (imide, imine, and disulfide bonds) was constructed by preparing vanillin difunctionalized derivatives (DVA) for aldolamine condensation reactions with bis‐amine monomers (ATFA) and tris(2‐aminoethyl) amines (TAEA) with imide structures. The ADTA material has good 5% thermal stability Td5% (278.87°C), high energy storage modulus E (2421.26 MPa), and fast relaxation time (36.39 s). The thermal stability and mechanical properties of the material are enhanced by the more stable alicyclic structure of the imide structure. The material also demonstrated excellent solvent resistance and self‐healing properties. This study provides a new option for the development of sustainable utilization of polyimide materials.

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Fully biomass-derived polyurethane based on dynamic imine with self-healing, rapid degradability, and editable shape memory capabilities

Cited by 26 publications

References 34 publications

Transparent, Self-Healing, and Recyclable Biomass-Based Covalent Adaptable Networks Formed via Magnolol and Dynamic Boronate Ester

Transparent, Self-Healing, and Recyclable Biomass-Based Covalent Adaptable Networks Formed via Magnolol and Dynamic Boronate Ester

Mimosa‐Inspired Body Temperature‐Responsive Shape Memory Polymer Networks: High Energy Densities and Multi‐Recyclability

Sustainable poly(imide‐imide) vitrimer based on multiple dynamic covalent bonds

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