Bio-based polymers with performance-advantaged properties

Nature Reviews Materials, Journal Year: 2021, Volume and Issue: 7(2), P. 83 - 103

Published: Sept. 23, 2021

Language: Английский

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Biobased polyurethanes for biomedical applications

Bioactive Materials, Journal Year: 2020, Volume and Issue: 6(4), P. 1083 - 1106

Published: Oct. 15, 2020

Polyurethanes (PUs) are a major family of polymers displaying wide spectrum physico-chemical, mechanical and structural properties for large range fields. They have shown suitable biomedical applications used in this domain since decades. The current variety biomass available has extended the diversity starting materials elaboration new biobased macromolecular architectures, allowing development PUs with advanced such as controlled biotic abiotic degradation. In frame, tunable devices been successfully designed. PU structures precise tissue biomimicking can be obtained adequate adhesion, proliferation differentiation many cell's types. Moreover, smart shape-memory adjustable shape-recovery demonstrated promising results wound healing. fossil-based substitution implants is slowly improving, nonetheless better renewable contents need to achieved most obtain certifications. After presentation some generalities an understanding biomaterial structure-biocompatibility relationship, recent developments non-implantable well short- long-term described detail review compared more conventional structures.

Language: Английский

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Biobased vitrimers: Towards sustainable and adaptable performing polymer materials

Progress in Polymer Science, Journal Year: 2022, Volume and Issue: 127, P. 101515 - 101515

Published: Jan. 12, 2022

Language: Английский

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Elastic vitrimers: Beyond thermoplastic and thermoset elastomers

Matter, Journal Year: 2022, Volume and Issue: 5(5), P. 1391 - 1422

Published: May 1, 2022

Language: Английский

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Neighboring Group Participation and Internal Catalysis Effects on Exchangeable Covalent Bonds: Application to the Thriving Field of Vitrimer Chemistry

Macromolecules, Journal Year: 2021, Volume and Issue: 54(9), P. 3927 - 3961

Published: April 19, 2021

Vitrimers constitute a fascinating class of polymer materials that make the link between historically opposed 3D networks (thermosets) and linear polymers (thermoplastics). Their chemical resistance, reshaping ability, unique rheological behavior upon heating them promising for future applications in industry. However, many vitrimers require use high catalyst loadings, which raises concerns their durability limits potential applications. To cope with this issue, internal catalysis neighboring group participation (NGP) can be used to enhance ability such materials. A few studies report effect activating groups on exchange reactions vitrimers. Nevertheless, knowledge topic remains scarce, although research would greatly benefit from NGP already known organic chemistry. The present Perspective presents different types exchangeable bonds implemented discusses have or potentially capable an enhancing reactions. This analysis is underpinned by thorough mechanistic discussion various presented.

Language: Английский

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Catalyst-free self-healing bio-based vitrimer for a recyclable, reprocessable, and self-adhered carbon fiber reinforced composite

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 429, P. 132518 - 132518

Published: Sept. 20, 2021

Language: Английский

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Strong and Tough Supramolecular Covalent Adaptable Networks with Room‐Temperature Closed‐Loop Recyclability

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(7)

Published: Nov. 11, 2022

Development of closed-loop chemically recyclable plastics (CCRPs) that can be widely used in daily life a fundamental solution to the global plastic waste crisis. Hence, it is great significance develop easy-to-recycle CCRPs possess superior or comparable material properties commodity plastics. Here, novel dual crosslinked CCRP, namely, supramolecular covalent adaptable networks (supra-CANs), reported, which not only displays mechanical higher than strong and tough polycarbonate, but also exhibits excellent solvent resistance as thermosets. The supra-CANs are constructed by introducing reversible noncovalent crosslinks into dynamic polymer networks, resulting highly stiff thermosets exhibit thermoplastic-like ductile behaviors well reprocessability rehealability. In contrast, analogs do have (CANs) show elastomeric with significantly decreased strength. Importantly, developed CANs converted back initial monomers high yields purity at room temperature, even additives, enables sustainable polymer-monomer-polymer circulation. This work provides new design principles for high-performance polymers substitutes conventional

Language: Английский

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Biobased covalent adaptable networks: towards better sustainability of thermosets

Green Chemistry, Journal Year: 2022, Volume and Issue: 24(11), P. 4363 - 4387

Published: Jan. 1, 2022

Thermosets have many advantages such as excellent mechanical properties, dimensional stability and environmental resistance, but suffer from unsustainability because they are difficult to recycle overdependent on petroleum chemicals.

Language: Английский

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Recovery of epoxy thermosets and their composites

Materials Today, Journal Year: 2023, Volume and Issue: 64, P. 72 - 97

Published: Jan. 20, 2023

Language: Английский

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Structure–Reactivity–Property Relationships in Covalent Adaptable Networks

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(49), P. 22358 - 22377

Published: Nov. 29, 2022

Polymer networks built out of dynamic covalent bonds offer the potential to translate control and tunability chemical reactions macroscopic physical properties. Under conditions at which these occur, topology adaptable (CANs) can rearrange, meaning that they flow, self-heal, be remolded, respond stimuli. Materials with properties are necessary fields ranging from sustainability tissue engineering; thus time scale network rearrangement must compatible intended use. The mechanical CANs based on thermodynamics kinetics their constituent bonds. Therefore, strategies needed connect molecular worlds. In this Perspective, we analyze structure-reactivity-property relationships for several classes CANs, illustrating both general design principles predictive linear free energy (LFERs) applied CANs. We discuss opportunities in field develop quantitative open challenges.

Language: Английский

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