ACS Applied Polymer Materials
·
2024
·
IF 4.4
Shanling Lu,Yuehan Qian,Yuemin Zhou,He Liu,Xu Xu,Fuhao Dong
Rosin, with a rigid hydrogenated phenanthrene ring, is a widely available biomass, but its high-value utilization needs to be enhanced. Inspired by sustainable development strategies, the design of polymer elastomers with a room-temperature self-healing capability has been a hot focus topic. However, designing elastomers that combine the conflicting properties of high mechanical performance and room-temperature self-healing is a significant challenge. The hydrogenated phenanthrene ring of rosin provides a superior solution to this problem. In this work, the polyurethane elastomer (BPU-X% AP) based on rosin-hydrogenated phenanthrene ring structure, dynamic oxime, and hydrogen bonding was reported. The BPU-X% AP exhibits high tensile strength (37.8 MPa), and good toughness (126.9 MJ m–3). Due to the rosin structure that promotes the movement of the elastomer chain segments, the elastomers have fast room-temperature self-healing and recyclability. Benefiting from their excellent mechanical strength and self-healing properties, BPU-X% AP as adhesives exhibits a strong lap shear strength of 5.5 MPa, and they can be used as hot melt binders. Corresponding to the cycling of the elastomer, the adhesive strength of BPU-10% AP remains almost the same after three cycles of adhesion to the iron and aluminum plates. This work provides a viable approach for the preparation of high-performance biomodified polyurethanes.
研究领域:
材料科学
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可持续发展
·
生物质利用
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hongliang Ding,Lu Liu,Chuanshen Wang,Na Sun,Lini Wu,Bicheng Lin,Keqing Zhou,Wei Zhang,Xiaodong Qian,Conglin Shi,Bin Yu
Motivated by sustainable development strategies, the design of repairable and recyclable polyurethane or polyurea elastomers has garnered significant attention. However, integrating superior mechanical properties with self-healing and recycling capabilities of elastomers remains a formidable challenge. Furthermore, the inherent flammability limits their practical applications. In this study, we introduced a novel approach by using lignin-derived vanillin as a bio-based raw material to synthesize the phosphorus-containing monomers (TMPOH and HVPOH) with dynamic oxime bonds. Then, the poly(urethane-urea) elastomers (PUA-TMPOH and HVPOH) based on dynamic oxime-urethane bonds and hydrogen bonding interactions were prepared. PUA-TMPOH exhibited excellent mechanical properties, including the impressive tensile strength of 50.9 MPa and high elongation at break of 811.9 %. The incorporation of dynamic oxime-urethane bonds imparted exceptional self-healing, reprocessing, and recyclability to the material. During the dissolution recycling process, the mechanical properties of the PUA-TMPOH and HVPOH remained above 95 %, effectively extending the service life. The introduction of phosphorus-containing structures also significantly enhanced the fire safety performance of elastomers. In cone test, both PUA-TMPOH and PUA-HVPOH demonstrated an obvious decrease in peak heat release rate (PHRR) and total heat release (THR) with decreases of 23.6 % and 30.5%, respectively, compared to PUA-0. This work provides a feasible pathway for developing high-performance, bio-based, dynamically flame-retardant polyurea elastomers.
研究领域:
材料科学
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可持续发展
·
化学工程
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DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2023
·
IF 6
Yuqin Wan,Hongkun Jiang,Yanbiao Ren,Yong Liu,Lincai Zhang,Qian Lei,Dandan Zhu,Junli Liu,Xinyue Zhang,Ning Ma,Xingshun Cong
Polypyrrole-polyurethane (PPy-PU) porous materials have been widely used in the research of flexible stress/strain sensors. However, it is inevitable on material damage in the process of force sensing, and it is still a great challenge to prepare a flexible porous sensor with non-contact self-healing performance. In this study, we prepared a non-contact photothermal self-healing PPy-PU porous material containing a reversible oxime urethane bond and polypyrrole, and further packaged it into a porous sensor for strain sensing detection. The obtained PPy-PU porous material has excellent breaking elongation and breaking strength. Benefit from the excellent photothermal conversion of polypyrrole, the maximum surface temperature of the PPy-PU porous material can reach above 110 °C at 1.5-sun that is the required temperature for the cleavage and reorganization of the oxime carbamate bonds in the PU matrix, and the fracture strength of PPy-PU porous material can be restored to more than 85% after self-healing at 1.5-sun for 1 h. The most important is that the self-healing PPy-PU porous sensor can still sensitively detect strain in the range of 1%–10%. Finally, we show the application of the photothermal self-healing PPy-PU porous sensor in the field of human micro-motion, indicating its potential for human physiological monitoring and artificial intelligence.
研究领域:
材料科学
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生物医学工程
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智能传感技术
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DOI
高影响因子
Polymers
·
2016
·Vol. 8
·期 3
·74
·
IF 2.944
Meng Yu,Yi Di,Ying Zhang,Yuting Zhang,Jia Guo,Haojie Lu,Changchun Wang
As a facile method to prepare hydrophilic polymeric microspheres, reflux precipitation polymerization has been widely used for preparation of polymer nanogels. In this article, we synthesized a phthalamide-protectedN-aminooxy methyl acrylamide (NAMAm-p) for preparation of alkoxyamine-functionalized polymer composite microspheres via reflux precipitation polymerization. The particle size and functional group density of the composite microspheres could be adjusted by copolymerization with the second monomers,N-isopropyl acrylamide, acrylic acid or 2-hydroxyethyl methacrylate. The resultant microspheres have been characterized by TEM, FT-IR, TGA and DLS. The experimental results showed that the alkoxyamine group density of the microspheres could reach as high as 1.49 mmol/g, and these groups showed a great reactivity with ketone/aldehyde compounds. With the aid of magnetic core, the hybrid microspheres could capture and magnetically isolate glycopeptides from the digested mixture of glycopeptides and non-glycopeptides at a 1:100 molar ratio. After that, we applied the composite microspheres to profile the glycol-proteome of a normal human serum sample, 95 unique glycopeptides and 64 glycoproteins were identified with these enrichment substrates in a 5 μL of serum sample.Keywords:alkoxyamine-functionalized microspheres;reflux precipitation polymerization;magnetic composite microspheres;oxime click;glycoproteins/glycopeptides enrichment
研究领域:
生物化学
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蛋白质组学
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2024
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IF 8.3
Yalong Qiao,Linyu Wang,Wenwen Xu,Pei Yang,Chuanye Tang,Danjie Song,Pinghua Ling,Feng Gao
Cell–cell interactions play an important role in many biological processes, and various methods have been developed for controlling the cell–cell interactions. However, the effective and rapid control of intercellular interactions remains challenging. Herein, we report a novel, rapid, and effective electrochemical strategy without destroying the basic life processes for the dynamic control of intercellular interactions via liposome fusion. In the proposed system, bioorthogonal chemical groups and hydroquinone (HQ)- and aminooxy (AO)-tethered ligands were modified on the surface of living cells on the basis of the liposome fusion, enabling dynamical intercellular assemblies. Upon application of the corresponding oxidative potential, the “off-state” HQ could be oxidized to the “on-state” quinone (Q), which subsequently reacts with AO-tethered ligands to form stable oxime linkages under physiological conditions. This reaction effectively shortens the distance between cells, promoting the formation of cell clusters. When the corresponding reverse reductive potential is applied, the oxime linkage is cleaved, resulting in the release of the cells. Furthermore, we employed HQ- and AO-tethered ligands to modify mitochondria, inducing mitochondrial aggregation. This noninvasive and label-free strategy allows for the dynamic reversible regulation of intercellular interactions, enhancing our understanding of intercellular communication networks, and has the potential for improving the antitumor therapy efficacy.
研究领域:
生物化学
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细胞生物学
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治疗学
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产品关联
DOI
PubMed
高影响因子
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