POLYMER
·
2024
·
IF 4.1
Yanyan Yu,Jinlong Fan,Guopeng Xu,Jie Zhang
Blending is an effective way to improve properties of rubbers and develop new materials, so more than 75 % of the rubber consumption in the world is rubber blend. However, blending of thermoplastic elastomers has not yet been emphasized, and few successful examples have been reported. The main challenge for blend systems is compatibility of two components. Herein, a series of (polydimethylsiloxane-based PU)-g-(poly (propylene glycol)-based PU) ((PDMS-PU)-g-(PPG-PU)) graft copolymers with different graft chain lengths and hard segment contents (HSC) were synthesized and utilized as compatibilizers of PDMS-PU/PPG-PU blends. The influence of the structure of compatibilizers on the morphology of blends was investigated, and the compatibilization mechanism was proposed. With the solubilization, the phase structure of blends transforms from “droplet-in-matrix” morphologies to co-continuous ones, and the average size of PPG-PU dispersed phase decreases from 3.5 ± 0.45 μm to 230 ± 60 nm. This is the first time that thermoplastic PDMS-PU/PPG-PU blends with co-continuous structures have been successfully prepared. The properties of blends exhibit synergistic effects. For example, they show high tensile strength of PPG-PU in mechanical properties and unique properties of PDMS in dynamic mechanical properties, weather resistance, water resistance and biocompatibility. In addition, strain sensors were fabricated by introducing carbon nanotubes (CNTs) into the blends, which demonstrated remarkable sensing capability for diverse human body motions.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Zhenke Wei,Zhizun Gao,Jiayi Sun,Jia Guo,Ying Wang,Xiangyu Tang,Yonggui Wang,Zefang Xiao,Haigang Wang,Yanjun Xie
The potential of paper as a plastic alternative is hindered by limited water resistance and mechanical strength. To address these challenges, this study developed a water-soluble chitosan/polyethylene glycol diglycidyl ether (PEGDE)/aminated lignin (AL) composite coating (CPA), which significantly enhanced the mechanical strength and water resistance of paper through molecular crosslinking and interface enhancement strategies. The CPA formed a dense crosslinked network on the surface and within the pores between fibers, enhancing the wet tensile strength of the paper by up to 75×. Moreover, the CPA retained biodegradability, allowing the coated paper to degrade in soil within 140 days. Additionally, CPA coated paper products, such as straws and mulches, exhibited excellent performance and a low carbon footprint, highlighting their potential as eco-friendly alternatives to plastics. This simple, scalable approach advances the development of sustainable, biodegradable paper-based materials.
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PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Dan Li,Zuquan Gan,Cailin Zhang,Xiuqiu Wang,Mingzhen Zheng,Xiaoyun Gao,Yue Huang,Youjun Fan,Shuifeng Zhang,Fuqin Zheng,Wei Chen
The exploration of sustainable approaches for plastic waste disposal has emerged as an urgent imperative task. This research presents an innovative and eco-friendly electrochemical route to degrade plastic waste, ethylene glycol (EG), into value-added formate. To this end, an interesting hollow FeOOH/CoOOH heterostructure is successfully fabricated for EG oxidation. The difference in work functions between FeOOH and CoOOH results in the establishment of a built-in electric field (BEF), which is beneficial for the adsorption of EG and *OH. As a result, the FeOOH/CoOOH demonstrates outstanding catalytic performance in the EG oxidation reaction (EGOR) with an exceptionally low potential of only 1.32 V at 10 mA cm -2 and a high Faraday efficiency of 92.19% for formate generation. Glycollic acid is identified as a pivotal intermediate in the EGOR by in-situ infrared spectroscopy. Theoretical computations disclose that the FeOOH/CoOOH heterostructure not only causes an upward shift of the d-band center but also largely enhances the *OH adsorption, thus speeding up the cleavage of the inert C-C bond and markedly facilitating the conversion of EG to formate. This research not only enriches the fundamental comprehension of the EGOR but also provides deep insights for the rational design of highly selective and active EGOR catalysts.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Yanhong Wang,Wenze Guo,Jun Yue,Hero Jan Heeres,Ling Zhao,Zhenhao Xi
The esterification of 2,5-furandicarboxylic acid (FDCA) and ethylene glycol (EG) constitutes a critical initial step in the synthesis of poly(ethylene-2,5-furandicarboxylate) (PEF), a promising biobased alternative to the conventional petroleum-based polyethylene terephthalate with superior physiochemical properties. This work presented experimental and kinetic modeling studies on FDCA-EG esterification for the synthesis of PEF using tetrabutyl titanate as a catalyst at 190–220 °C. A reaction network was proposed, incorporating the reversible esterification, transesterification, and, particularly, the decarboxylation of terminal carboxyl groups to elucidate the coloration phenomenon in PEF synthesis. A comprehensive kinetic model, integrating the reaction kinetics and water removal, was developed using the terminal group method from the homogeneous-stage experiments and validated by the reactions in the heterogeneous stage. The model enables accurate prediction of the time to reach a clear point, the esterification rate, and the concentrations and selectivities of key terminal groups and components under varying conditions. Model implication reveals temperature and water removal efficiency (kLa) as dominant kinetic drivers, while equilibrium water concentration governs the minimum level of terminal carboxyl groups and equilibrium esterification rates, which remain unaffected by temperature or kLa. Although all three parameters show negligible effects on ester product selectivity, byproduct selectivity becomes sensitive to these parameters as the system approaches equilibrium, emphasizing the need to avoid equilibrium extremes for decarboxylation mitigation. These insights provide a kinetic framework to balance reaction regulation and byproduct mitigation, enabling optimized FDCA-EG esterification and efficient PEF synthesis through appropriate process intensification.
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Journal of Energy Storage
·
2025
·
IF 9.8
Yilong Zhang,Zhenwei Yan,Mengdan Huo,Yanxia Guo,Yajun Li,Jian-ming Gao
Under the dual carbon background, the performance enhancement and application promotion of phase change materials (PCMs) hold significant practical importance. The research specifically examines the influence of pore structure and surface functional groups on structure and thermal properties of composite phase change materials (CPCMs) using coal-based solid waste-derived mesoporous silicon as carrier for polyethylene glycol (PEG) encapsulation. Complex multilevel porous silicon-based materials were synthesized through mineral phase regulation and acid etching techniques, while regular porous structures were created using cetyltrimethylammonium bromide (CTAB) as templating agent, and the pore architectures and surface functionalities were characterized and analyzed through SEM (Scanning Electron Microscopy), BET (Brunauer-Emmett-Teller), and FTIR (Fourier Transform Infrared Spectroscopy). The results demonstrate that complex porous materials exhibited enhanced thermal performance with increased pore size (1.22 nm) and volume (0.354/cm −3 ·g −1 ), whereas regular porous variants showed no thermal activity until amino-group functionalization. Post-modification, the functionalized regular porous materials achieved an enthalpy of 90.25 J·g −1 with crystallinity >90 %, confirming the co-regulatory effects of pore geometry and surface chemistry on PEG crystallization. These findings advance phase change materials (PCM) optimization strategies and coal waste valorization approaches, supporting energy storage material innovation for low-carbon development.
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高影响因子
POLYMER
·
2023
·
IF 4.6
Changtong Song,Xianhong Zhang,Yuhong Ma,Wantai Yang
Developing internal-plasticized poly(vinyl chloride) (PVC) resin has been recognized as an effective way to deal with the issues of conventional PVC products such as toxicity and deterioration in properties caused by the migration of plasticizer . Herein, the copolymerization of vinyl chloride with commercial available poly(ethylene glycol) monomethyl ether methacrylate (PEGMA) is firstly conducted via suspension polymerization and internally plasticized random copolymers (PVEGA) are synthesized successfully. These PVEGA copolymers were intensively characterized by FTIR, 1 H NMR, GPC , DSC, DMTA , and SEM to determine the composition , number-average molecular weight ( M n ), dispersity, glass transition temperature ( T g ), and the micromorphology. As a result, the high transparency and the fracture images demonstrated the good compatability between PVC chains with long-chain polyether . The T g of PVEGA decreased gradually from 80 to 0 °C with the fraction of PEGMA in the copolymer increased from 7 to 37 %. Furthermore, the PVEGA copolymer exhibits outstanding processibility and mechanical performance. Under optimal composition , the tensile strength and the elongation at break can reach to 8 MPa and 525 %, respectively. Meanwhile, the PVEGA copolymers exhibit much lower migration either in water or in orgnic solvent and excellent performance in hemolysis and cytotoxicity, showing great application potential in medical devices .
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JOURNAL OF SOLID STATE CHEMISTRY
·
2018
·
IF 2.179
Huili Liu,Zhuxiu Zhang,Jihai Tang,Zhaoyang Fei,Qing Liu,Xian Chen,Mifen Cui,Xu Qiao
In this article, we use defect engineering approach to fine-tune the pore size of MOF-808-SO 4 . A series of defective MOF-808-SO 4 with different pore size were prepared by varying the amount of isophthalic acid as the defective ligand during the synthesis. We obtained a linear correlation between the concentration of the defective ligand and the pore size via regression analysis. The pore size exerts a significant effect on the catalytic activity in the addition reaction of isobutylene with ethylene glycol. The highest conversion of ethylene glycol was found over MOF-808-20%-SO 4 (2.25 nm) with the largest pore size, whereas MOF-808-5%-SO 4 (1.46 nm) and MOF-808-10%-SO 4 (1.53 nm) exhibited higher selectivity toward ethylene glycol mono-tert-butyl ether. There is a linear correlation between the pore size and catalytic activity only when the pore size ranges from 1.4 to 2.0 nm. MOF-808-15%-SO 4 with the pore size of 1.99 nm exhibits the highest yield of ethylene glycol mono-tert-butyl ether.
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JOURNAL OF MOLECULAR LIQUIDS
·
2021
·
IF 6.165
Zhiwei Wang,Teng Wu,Xiao Geng,Juanjian Ru,Yixin Hua,Jiaojiao Bu,Yu Xue,Ding Wang
Nanoscale Fe Cr alloy is successfully electrodeposited in choline chloride-ethylene glycol (ChCl-EG, mole ratio 1:3) deep eutectic solvent (DES) at two-electrode system by optimizing concentration ratio c Fe(II) / c Cr(III) . ESI-MS analyses indicate [Fe(H 2 O) 3 (Cl − ) 3 ] − and [Cr(H 2 O) 2 Cl 4 ] − are the dominant species of Fe(II) and Cr(III) in ChCl-EG DES, respectively. Linear sweep voltammetry demonstrates that with the increase of c Fe(II) / c Cr(III) from 1:5 to 1:1, the reduction potential difference between Fe(II) and Cr(III) will become smaller, which is conducive to the electrodeposition of Fe Cr alloy deposit with a higher Cr content. The reduction of Fe(II) or Cr(III) on glassy carbon electrode is a quasi-reversible process controlled by diffusion with a diffusion coefficient of 5.34 × 10 −6 cm 2 ·s −1 and 2.22 × 10 −6 cm 2 ·s −1 . FE-SEM observation shows that as the c Fe(II) / c Cr(III) decreases from 1:2 to 1:5, the microstructure becomes uneven with the morphology transform from homogeneous particles to scaly blocks. At 1:2, the prepared nanocrystalline Fe Cr alloy has a symmetrical element distribution with a mean coating thickness of 120.3 μm and a mean diameter of ≈1.56 nm. Corrosion resistance test manifests the prepared Fe Cr alloy possesses good corrosion resistance. All the above studies provide a theoretical foundation for Fe Cr alloy production by varying electrolyte ratios.
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SURFACE AND INTERFACE ANALYSIS
·
2021
·Vol. 54
·期 3
·218-230
·
IF 1.607
Lu Chen,Nan Tu,Qianyang Wei,Tao Liu,Chengzhi Li,Wenbo Wang,Jianhui Li,Hailin Lu
In this paper, graphene oxide/polyethylene glycol (GO/PEG) composite water-based lubricant was prepared by an ultrasonic dispersion method, and characterized and analyzed by Fourier transform infrared (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The suspension performance of GO/PEG composite water-based lubricant in water was verified by static sedimentation and centrifugation, and then, the prepared GO/PEG composite water-based lubricant was added into 304 stainless steel and 6061 aluminum alloy, and the coefficient of friction (COF) curve, average COF value, average wear rate, corresponding photomicrographs of balls and disks after wear, and energy-dispersive spectrometer (EDS) elemental analysis were used to illustrate the lubrication effect and lubrication mechanism. The results show that the GO/PEG composite water-based lubricant possesses excellent suspension ability in water, and the average COF value and wear rate of GO/PEG composite water-based lubricant are reduced by 78.8% and 88.8%, respectively, compared with water lubrication. The excellent lubrication effect of GO/PEG composite water-based lubricant can effectively reduce the cold-welding and adhesive wear phenomenon, mainly because GO/PEG composite water-based lubricant first fills the uneven surface of friction mating to form a high-quality lubricating film and then because of the special space structure of GO and the low shear between GO layers and the synergistic lubrication effect of GO/PEG.
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高影响因子
Journal of Biomedical Nanotechnology
·
2021
·Vol. 17
·期 6
·1208-1216
·
IF 4.099
Yang Shuqin,Sun Xiaoyan,Wang Yanmei,Bie Xiaoyan,Fan Tianren
Lidocaine-loaded nanoparticles are versatile nanomaterials that may be used in pain treatment due to their wound healing properties. The current study describes a wound dressing formulation focused on lidocaine-loaded dextran/ethylene glycol nanoparticles (an anesthetic drug). The lidocaine-loaded
dextran/ethylene glycol membranes were fabricated using lidocaine solutions inside the dextran/ethylene glycol medium. The influence of various experimental conditions on dextran/ethylene glycol nanoparticle formations were examined. The sizes of dextran/ethylene glycol and lidocaine-loaded
dextran/glycol nanoparticles were examined through the HR-SEM. Moreover, the efficacy antibacterial activity of dextran/glycol and lidocaine-loaded dextran/ethylene glycol nanoparticles was evaluated against the microorganisms grampositive and negative. Furthermore, we observed the In Vivo
wound healing of wounds in skin using a mice model over a 16 days period. In this difference to the wounds of untreated mouse, quick healing was observed in the lidocaine-loaded dextran/glycol nanoparticles-treated wounds with fewer injury. These results specify that lidocaine-loaded dextran/ethylene
glycol nanoparticles-based dressing material could be a ground-breaking nanomaterial having wound repair and implantations potential required for wound injury in pain management, which was proven using an animal model.
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高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2020
·
IF 3.004
Pengru Liu,Xiongdiao Lan,Muhammad Yaseen,Kungang Chai,Liqin Zhou,Jianhua Sun,Ping Lan,Zhangfa Tong,Dankui Liao,Lixia Sun
Purification of small bioactive peptides from complex biological samples is a difficult task due to the interference of concentrated large biomolecules. In this study, a magnetic immobilized metal affinity chromatography matrix modified by poly (ethylene glycol) methyl ether (IMACM@mPEG) was prepared and applied for the rapid purification of angiotensin I-converting enzyme (ACE) inhibitory peptides from casein hydrolysate. The proposed IMACM@mPEG considerably reduced the non-specific adsorption of large proteins and exhibited improved purification efficiency towards ACE inhibitory peptides. A novel peptide with moderate ACE inhibitory activity (IC 50 value of 274 ± 5 μM) was identified as LLYQEPVLGPVR. Lineweaver-Burk plot confirmed the non-competitive inhibition pattern of LLYQEPVLGPVR. The purified peptide was digested after simulated gastrointestinal digestion and produced shorter peptides which contributed to enhanced ACE inhibitory activity. These results indicated that the IMACM@mPEG is an effective method for the prepurification of ACE inhibitory peptide and the purified peptide LLYQEPVLGPVR may have potential as nutraceutical ingredient in functional foods for hypertension treatments.
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PubMed
高影响因子
Frontiers of Materials Science
·
2023
·Vol. 17
·期 2
·1-13
·
IF 2.7
Fan Yongyong,Yin Anlin,Li Yunhuan,Gu Qi,Zhou Yan,Zhou Junlong,Zhao Ruibo,Zhang Kuihua
In order to provide a biomimetic natural extracellular matrix microenvironment with excellent mechanical capacity for tissue regeneration, a novel porous hybrid glycidyl methacrylate-modified silk fibroin/poly(L-lactic acid-ε-caprolactone)-polyethylene glycol diacrylate (SFMA/P(LLA-CL)-PEGDA) hybrid three-dimensional (3D) nanofibrous scaffolds was successfully fabricated through the combination of 3D nanofibrous platforms and divinyl PEGDA based photocrosslinking, and then further improved water resistance by ethanol vapor post-treatment. Scanning electron microscopy and micro-computed tomography results demonstrated significant PEGDA hydrogel-like matrices bonded nanofibers, which formed a 3D structure similar to that of “steel bar (nanofibers)–cement (PEGDA)”, with proper pore size, high porosity, and high pore connectivity density. Meanwhile, the hybrid 3D nanofibrous scaffolds showed outstanding swelling properties as well as improved compressive and tensile properties. Furthermore, these hybrid 3D nanofibrous scaffolds could provide a biocompatible microenvironment, capable of inducing the material–cell hybrid and regulating human umbilical vein endothelial cells proliferation. They thus present significant potential in tissue regeneration.
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高影响因子
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