A5100708913- Polymer composites and self-healing
- Photochromic and Fluorescence Chemistry
- Polydiacetylene-based materials and applications
- Silicone and Siloxane Chemistry
- Tribology and Wear Analysis
- Advanced Materials and Mechanics
- Electrospun Nanofibers in Biomedical Applications
- Advanced Sensor and Energy Harvesting Materials
- biodegradable polymer synthesis and properties
- Advanced Polymer Synthesis and Characterization
- Synthesis and properties of polymers
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Food composition and properties
- Corrosion Behavior and Inhibition
- Polymer Nanocomposites and Properties
- Marine Sponges and Natural Products
- Supramolecular Self-Assembly in Materials
- Epoxy Resin Curing Processes
- Conducting polymers and applications
- Polysaccharides Composition and Applications
- Microplastics and Plastic Pollution
- Recycling and Waste Management Techniques
- Graphene research and applications
- Crystallography and molecular interactions
Lanzhou Institute of Chemical Physics
2013-2024
University of Chinese Academy of Sciences
2019-2024
Chinese Academy of Sciences
2013-2024
Wenzhou Medical University
2024
Sichuan University
2024
Linyi University
2024
Chinese Academy of Agricultural Sciences
2024
Zhengzhou University
2024
Qufu Normal University
2024
Harbin Institute of Technology
2022-2024
Abstract Self-healing and recyclable polymer materials are being developed through extensive investigations on noncovalent bond interactions. However, they typically exhibit inferior mechanical properties. Therefore, the present study is aimed at synthesizing a polyurethane–urea elastomer with excellent properties shape-memory-assisted self-healing behavior. In particular, introduction of coordination hydrogen bonds into leads to optimal exhibiting good (strength, 76.37 MPa; elongation...
To address the challenge of realizing multifunctional polymers simultaneously exhibiting high strength and toughness through molecular engineering, ultrastrong supertough shape-memory poly(urea-urethane) (PUU) is fabricated by regulating: i) reversible cross-links composed rigid units multiple hydrogen bonds, ii) weight soft segments. The optimal material exhibits an unparalleled 84.2 MPa at a large elongation break 925.6%, superior 322.8 MJ m-3 , remarkable fatigue resistance without...
In this study, a tough shape memory polymer network based on polydopamine, poly(ε-caprolactone) and diisocyanate was synthesized in three steps. Fourier transform infrared spectroscopy used to confirm the synthesis process. The tensile tests demonstrated good mechanical properties of materials with modulus strength reaching 362 43 MPa, respectively, at room temperature. thermal networks were investigated using differential scanning calorimetry dynamic analysis. With two broad transition...
This review mainly focuses on the latest development of high-strength and high-toughness polyurethanes based supramolecular interactions, provides a comprehensive analysis main types, synthetic strategies, strengthening mechanisms.
Abstract Advances in modern industrial technology continue to place stricter demands on engineering polymeric materials, but simultaneously possessing superior strength and toughness remains a daunting challenge. Herein, pioneering flexible cage‐reinforced supramolecular elastomer (CSE) is reported that exhibits superb robustness, tear resistance, anti‐fatigue, shape memory properties, achieved by innovatively introducing organic imide cages (OICs) into networks. Intriguingly, extremely...
Thermoset shape memory polyimides (TPIs) are widely used in the fields of high-temperature smart devices. However, recent molding limits most potentials form two-dimensional film. In this work, we synthesized a novel polyimide (SMPI) ink that could be for both Digital Light Process and extrusion 3D printing. Through UV-induced free radical polymerization, custom can cured rapidly. Remarkably, printed PI exhibits excellent performance, with Rf 99.8%, Rr 98.3%, therefore 4D printing was...
Abstract The 4D‐printing technology is applied to fabricate a shape memory peripheral stent with good biocompatibility, which sustains long‐term drug release. star polymer s‐PCL prepared by ring opening polymerization of ε ‐caprolactone the ‐OH β ‐cyclodextrin ( CD) as initiator, and then modified acrylate endgroup allows under UV light form crosslinking network c‐PCL. Attributed feature high crosslinked structure chemical nature polycaprolactone (PCL) CD, composite exhibits appropriate...
A high-strength and high-toughness thermosetting polyurethane, which has shape memory effects as well self-healing performance to extend its service life.
The rapid development of 4D printing provides a potential strategy for the fabrication deployable medical devices (DMD). minimally invasive surgery to implant DMD into body is critical, allows well-defined device be implanted with high-compacted shape and transformed their designed meet requirement. Herein, tissue engineering material developed excellent biocompatibility memory effect based on photocrosslinked polycaprolactone (PCL). fast thiol-acrylate click reaction applied...
Recycling is a major approach in developing sustainable polymers to cope with environmental pollution and resource waste, but it still remains challenge design high-performance closed-loop recyclable shape memory polyimide. Here, we report type of fully thermosetting polyimide (RPI) containing reversible dynamic imine-cross-linked network formed via polycondensation between amine-terminated bisimide 1,3,5-triformylbenzene the absence any catalyst. The cured RPI exhibits excellent mechanical...
Addressing the demand for integrating strength and durability reinforcement in shape memory polyurethane (SMPU) diverse applications remains a significant challenge. Here series of SMPUs with ultra-high strength, self-healing recyclability, excellent properties through introducing dynamic boron-urethane bonds are synthesized. The boric acid (BA) to leading formation covalent (DCB) boron-urethane, that confer robust cross-linking structure on led ordered stable hydrogen-bonding network within...
Developing high-performance elastomers with distinctive features opens up new vistas and exciting possibilities for information encryption but remains a daunting challenge. To surmount this difficulty, an unprecedented synthetic approach, "modular molecular engineering", was proposed to develop tailor-made advanced elastomers. The customized hydrophobic poly(urea-urethane) (HPUU-R) elastomer perfectly integrated ultrahigh tensile strength (∼75.3 MPa), extraordinary toughness (∼292.5 MJ m-3),...