Chem, Journal Year: 2023, Volume and Issue: 9(8), P. 2206 - 2221
Published: May 4, 2023
Language: Английский
Matter, Journal Year: 2022, Volume and Issue: 5(5), P. 1391 - 1422
Published: May 1, 2022
Language: Английский
Citations
172
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(12)
Published: Jan. 15, 2023
Abstract High‐performance elastomers are expected to possess excellent healing and recycling ability, damage resistance in conjunction with high strength toughness. Herein, a dual dynamic crosslinking strategy is implemented by multiple hydrogen disulfide bonds obtain novel amorphous transparent polyurethane/nanocellulose elastomer self‐healing, self‐reinforcing toughening performance. First, introduced TEMPO‐oxidized cellulose nanofibers (TCNF) modification 2‐ureido‐4[1H]‐pyrimidone (UTCNF), while (SS) the polyurethane (PU) main chain, leading formation of cross‐linking networks. The PU‐SS‐UTCNF can fully self‐heal within 4.0 h at 50 °C. Surprisingly, for first time, also self‐strengthens self‐toughens after hot‐pressing, tensile toughness that increase up 401% 257% compared original samples, 50.0 MPa 132.5 MJ m ‐3 . self‐strength self‐toughening effects attributed 1) reconstruction networks degree during hot‐pressing processes; 2) system beneficial orientation highly crystallized UTCNF, as replacement stress‐induced process deformation under external force.
Language: Английский
Citations
135
Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(16), P. 7046 - 7065
Published: Jan. 1, 2022
The nature of mechanically interlocked molecules (MIMs) has continued to encourage researchers design and construct a variety high-performance materials. Introducing structures into polymers led novel polymeric materials, called (MIPs). Rotaxane-based MIPs are an important class, where the characteristic retains high degree structural freedom mobility their components, such as rotation sliding motions rotaxane units. Therefore, these MIP materials known possess unique set properties, including mechanical robustness, adaptability responsiveness, which endow them with potential applications in many emerging fields, protective intelligent actuators, mechanisorption. In this review, we outline synthetic strategies, structure-property relationships, application explorations various polyrotaxanes, linear polyrotaxane networks, dendrimers.
Language: Английский
Citations
134
Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(39)
Published: Aug. 4, 2022
Chemical recycling of synthetic polymers offers a solution for developing sustainable plastics and materials. Here we show that two types dynamic covalent chemistry can be orthogonalized in solvent-free polymer network thus enable chemically recyclable crosslinked material. Using simple acylhydrazine-based 1,2-dithiolane as the starting material, disulfide-mediated reversible polymerization acylhydrazone-based crosslinking combined one-pot reaction, resulting mechanically robust, tough, processable The bonds both backbones crosslinkers endow with depolymerization capability under mild conditions and, importantly, virgin-quality monomers recovered separated. This proof-of-concept study opportunities to design materials based on toolbox.
Language: Английский
Citations
83
Progress in Polymer Science, Journal Year: 2022, Volume and Issue: 137, P. 101635 - 101635
Published: Dec. 14, 2022
Language: Английский
Citations
72
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(36)
Published: May 18, 2023
Abstract Linear chains in thermoplastics make them relatively weak performance but inherently weldable and recyclable. By contrast, thermosets with permanently crosslinked networks possess outstanding mechanical performance, thermal, chemical stability, are unweldable unrecyclable. In the last decade, a kind of thermoplastics‐like termed as vitrimer has been developed extensive applications, which welding vitrimers plays central fundamental role. Herein, we present current state art discuss from broad picture chemistry, physics, mechanics: i) chemistry mechanics vitrimers; ii) applicability assessment methods for iii) design principles implement strategies to iv) effects conditions on strength toughness; v) applications adhesion chemically inert materials. Finally, advantages, challenges, open questions highlighted, future opportunities mechanics, tough welding, artificial intelligence aided programming technology, standard, so discussed. The development would fuse disciplines transformative impact polymer industry.
Language: Английский
Citations
57
Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(6), P. 3526 - 3534
Published: Jan. 31, 2023
Dynamic supramolecular networks are constantly accompanied by thermal instability. The fundamental reason is most reversible noncovalent bonds quickly decay at elevated temperatures and dissociate below 100 °C. Here, in this paper, we realize a ion-dipole interaction with high-temperature stability exceeding 150 resultant network can simultaneously possess mechanical strength of 1.32 MPa (14.8 times that pristine material), dynamic self-healing capability, stable working temperature up to 200 From the prolonged characteristic relaxation time 600 s even °C, our material represents one thermally polymers. These remarkable performances achieved using new multivalent yet low-entropy-penalty molecular design. In way, bond reach high enthalpy while minimizing entropy-dominated dissociations.
Language: Английский
Citations
53
ACS Materials Letters, Journal Year: 2023, Volume and Issue: 5(2), P. 480 - 490
Published: Jan. 13, 2023
The hydrogen bond, one of the simplest and most versatile noncovalent interactions, is essential for many dynamic functions in living systems. After long-term fundamental development, H-bond chemistry has been well established, with a large family molecular moieties tunable binding affinities available. In past several years, growing interest polymeric materials aroused series emerging applications material design. This Perspective aims at discussing design principles H-bond-based by summarizing state art recently emerged materials. Opportunities challenges are proposed to provide an overview this research topic, possible future directions, potential applications.
Language: Английский
Citations
45
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(24)
Published: Feb. 12, 2024
Abstract Infrared transmitting materials (IRTMs) are prone to mechanical and corrosion damage during long‐time exposure harsh outside environments. However, conventional IRTMs frequently lack self‐repairability that limit their lifespan. To address the limitation, thioctic acid‐based epoxy resins (TAEs) developed from natural acid commercial monomers. The double ring‐opening polymerization (ROP) reactions of groups result in dual dynamic covalent bonds with varying bond energies containing relatively weak disulfide strong ester bonds. As compared adaptable networks (CANs) present rapid creep properties when heated, TAEs maintain geometric stability self‐repairing at a mild temperature 80 °C by enhancing network integrity through stable crosslinking points. feature renders capability while maintaining precise geometrical dimensions, which is suitable for infrared devices. On other hand, exhibit high near‐infrared transmittance (>80%). Therefore, demonstrate they can be used as superior polymeric IRTM.
Language: Английский
Citations
33
Nature, Journal Year: 2024, Volume and Issue: 632(8024), P. 294 - 300
Published: June 24, 2024
Further improvements in perovskite solar cells require better control of ionic defects the photoactive layer during manufacturing stage and their usage
Language: Английский
Citations
31