JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 133
·期 19
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IF 1.866
Jiuyun Cui,Yilin Wu,Minjia Meng,Jian Lu,Chen Wang,Juan Zhao,Yongsheng Yan
Inspired from the highly bioadhesive performance of mussel protein, a simple, yet efficient synthetic method for efficiently imprinting of Artemisinin (Ars) was developed to prepare the bio-inspired molecularly imprinted membranes (MIMs) via atom transfer radical polymerization (ATRP). In this work, attributed to the unique properties of polydopamine (pDA) modified layers and ATRP technology, the uniform recognition sites for efficiently selective extraction of the Ars with high stability could be obtained on the MIMs surfaces. In addition, the maximum adsorption capacity of the MIMs is 158.85 mg g −1 by the Langmuir isotherm model, which is remarkable higher than NIMs. Additionally, because of the formation of the uniform specific recognition cavities on membrane surfaces, the as-prepared MIMs exhibited a rapid adsorption dynamics and well-fitted for the pseudo-second-order rate equation, also, possessed an excellent per-selectivity performance (β artemether/Ars values is 0.18) of template molecule, which clearly demonstrated the potential value of this method in the selective separation and purification of Ars. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43405.
研究领域:
材料科学
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药物化学
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生物医学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 133
·期 16
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IF 1.866
Jia Ming Zhu,Ge Li,Lan Ying Jiang
A series of polysiloxaneimide (PSI)/polyetherimide (PEI) composite hollow fibers were fabricated by coextrusion and phase inversion. The hydrophobic PSI outer layer was set as the selective layer which was supported by the PEI inner layer. The PSI was synthesized by polycondensation of 3,3′,4,4′-Biphenyltetracarboxylic Dianhydride (BPDA) with amino siloxane X-22-161A and a chain extender, 1,3-Bis (3-aminopropyl) −1,1,3,3-tertramethyldisiloxane (BATS). It was found that the macroscopic uniformity of PSI layer was dependent on the dope formulation, coagulant composition and dope flow rate: (1) the higher similarity degree of the solvent(s) for different layers in terms of solubility parameters, (2) the utilization of surfactant as a component in the water coagulant, and (3) higher flow rates of the outer layer dopes, led to the formation of more uniform and smoother PSI outer layer. The maximum outer layer thickness was around 2 μm. The bulk of the PEI layers were porous with finger like macrovoids. The outer surface of the inner PEI layer for some batches of the hollow fibers was confirmed to be porous. The original dual-layer hollow fibers showed poor pervaporation performance. Post treatment was applied to cure the hollow fiber, delivering composite membranes with performance dominated by the coating material of PDMS. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43324.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2015
·Vol. 132
·期 40
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IF 1.768
Junjie Yuan,Yunbo Zhang,Zhengzhou Wang
A new type of crosslinked poly (n-butyl acrylate) (PBA)/silica core-shell nanocomposite particles was adopted as toughening agent to improve the mechanical properties of phenolic foams. The effects of the nanocomposite particles on the structures and properties of lightweight phenolic foams were investigated. SEM result showed that the addition of a small quantity of the nanocomposite particles can significantly enhance the structural homogeneity of phenolic foams. Thermalgravimetric analysis result suggested that the incorporation of the nanocomposite particles did not affect the thermal stability of the toughened phenolic foams. The flexural strength, compressive strength, and elastic modulus of the phenolic foams increased distinctively after the addition of the nanocomposite particles, the maximum values of which increased by 36.0%, 42.9%, and 32.3%, respectively. In this study, the optimum dosage of the nanocomposite particles is 0.03 phr in the modified phenolic foams. Moreover, the influence on the flammability of phenolic foams by toughening can almost be neglected. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42590.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Zixuan Wang,Wenhao Gao,Zhengchun Cai,Haian Xia
Poly(ethylene 2,5-furandicarboxylate) (PEF) and poly(butylene 2,5-furandicarboxylate) (PBF) are regarded as two of the most promising materials derived from furandicarboxylic acid. The modification of these two polyesters has become one of the hot research topics. It was reported that their mechanical properties had significant shortcomings, particularly for low molecular weight PBF, whose brittleness limited its use. In this work, a novel monomer, itaconic acid, was introduced to modify PBF, and a new furan-based polyester-poly(1,4-butylene furanoate-co-itaconate) (PBFIs) was synthesized. For the first time, itaconic acid up to 47% was incorporated to synthesize the polyester materials. The structural and thermomechanical properties of these polyesters were investigated using Gel Permeation Chromatography (GPC), Proton Nuclear Magnetic Resonance ( 1 H NMR), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), X-ray Diffraction (XRD), and tensile testing. Compared to PBF, the PBFIs exhibited reduced crystallization ability attributed to the formation of crosslinked networks; notably, their glass transition temperature decreased significantly to as low as 7°C, while thermal stability improved. Tensile tests further demonstrated that their elongation at break increased dramatically by up to 675%. In summary, the results suggest that PBFIs possess significant potential in the realm of thermoset elastomers, thereby expanding the application scope of furan-based polyesters.
研究领域:
材料科学
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聚合物化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Yanxuan Ma,Yuhua Gao,Hao Huang,Yao Xu,Gongbin Wang,Rui Wu,Shuaifei Wang,Meiyu Li
Epoxy resin (EP), widely used in composites, exhibits brittleness and high internal stress due to its high cross-linking density after curing, driving extensive modification studies. This work integrates polyurethane (PU) via interpenetrating networks and polydopamine (PDA) nanoparticles to fabricate PU-PDA/EP composites, investigating their mechanical and self-healing properties. Tensile/hardness tests reveal improved mechanical strength, while infrared spectroscopy and scanning electron microscopy clarify the self-healing mechanism: PDA forms hydrogen bonds with epoxy groups, enabling autonomous repair within the matrix. Digital scattering correlation method analysis tracks deformation behavior, showing stress–strain, gray coefficient (Stc), and X-direction strain (Sts) evolution under load before/after repair in diverse environments. Optimal self-healing occurs at 0.6% PDA: specimens regain 104.45% of initial strength (28.57 MPa postrepair vs. 28.16 MPa initial) after 3-day ambient healing, surpassing original performance. The study confirms PDA's dual role in enhancing toughness and triggering reversible hydrogen-bond-driven repair, offering a facile strategy to overcome EP's brittleness.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Xiaoman Tang,Yongbin Huang,Xiulan Guo,Chang-An Xu,Teng Yuan
Although bio-based polyurethane materials have attracted much attention due to their characteristics such as renewable and long service life conventional polyurethane materials do not have self-healing properties due to structural limitations, leading to their limited application. Imine bond is a kind of dynamic and reversible covalent bond, which can self-heal damaged materials under mild conditions. Based on this, this work utilized p-phthalaldehyde and poly (propylene glycol) bis (2-aminopropyl ether) to prepare T-NH monomers containing imine bonds. Subsequently, four kinds of bio-based polyurethanes containing T-NH were synthesized from castor oil, epoxy soybean oil, glycerol monostearate, and Sorbitan monooleate under UV conditions. The self-healing performance of bio-based polyurethane materials containing imine bonds was evaluated through optical microscopy and mechanical properties. The results showed that the coating had certain self-healing properties at room temperature, and the self-healing efficiency of the coating was greatly improved when heated to 50°C. Among them, the polyurethane material prepared from glyceryl monostearate had the best self-healing ability, with a self-healing efficiency of 90% and a healing cycle of 4 times. This work not only enhanced the added value of biomass materials but also provided a reference for the preparation of polyurethane materials with self-healing properties.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Shuai Yuan,Jian Hu,Jin Yang
Conductive polyurethane (CPU) with excellent processability has broad prospects in the communication field. However, the poor thermal stability of polyurethane (PU) limits its application. To solve this problem, a type of CPU with heat resistance was synthesized from p-phenylene diisocyanate (PPDI), poly-(tetramethylene ether) glycol (PTMG), aniline trimer (AT), and subsequently doped with camphorsulfonic acid (CSA). Besides, both polydimethylsiloxane (PDMS) and polycarbonate diol (PCDL) were introduced into CPU backbones, and PPDI-based CPU (PCPU) was synthesized with a high reaction efficiency of 94%. The structure of PCPU was confirmed by FT-IR, 1 H NMR, and GPC. The microphase separation structure, thermal stability, mechanical properties, and conductive performances were investigated using multiple characterization techniques such as DSC, XRD, TGA, DMA, and so on. The addition of PDMS promoted microphase separation and significantly improved the thermal stability of PCPU. Meanwhile, introducing PCDL into soft segments might increase the hydrogen-bond content in the PU system. When the molar ratio of PTMG to PCDL is 3:1, the thermal stability and mechanical properties of PCPU can be maximized. Furthermore, the conductive segments composed of AT formed a spatial conductive network within the PCPU. Obviously, such highly heat-resistant PCPU showed considerable potential for being used in high-temperature environments.
研究领域:
材料科学
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高分子化学
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Zhe Zong,Wei Zhao,Siyi Li,Na Liang,Shaoping Sun
A novel polymer Bio-CD-SS-TPE is designed and synthesized by modifying hydroxypropyl-β-cyclodextrin with the aggregation-induced emission (AIE) featured tetraphenylethylene derivative, disulfide bond, and biotin. The polymer can self-assemble into micelles in an aqueous phase and encapsulate paclitaxel (PTX) in the hydrophobic core. As expected, the Bio-CD-SS-TPE micelles exhibit excellent AIE performance and cell imaging capability. With the effect of disulfide bonds, the PTX-loaded micelles quickly release the drug upon the trigger of glutathione. In vivo study indicates the superior tumor inhibition effect and lower systemic toxicity of the PTX-loaded micelles. The Bio-CD-SS-TPE micellar system holds great potential in cancer treatment and bioimaging.
研究领域:
生物材料学
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癌症治疗
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药物递送系统
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Xueshuai Wang,Chengxian Cao,Sha Li,Liuchun Zheng
Poly(ethylene terephthalate- co -1,4-cyclohexanedimethylene terephthalate) (PETG) is a versatile engineering plastic with excellent properties and has been widely used in heat-shrinkable films, sheets, and packaging. A series of PETG with various contents of 1,4-cyclohexanedimethylene (CHDM) content was synthesized by transesterification and polycondensation. The PETG synthesized in this work has less DEG by-product content and exhibits excellent combined properties. This is attributed to the fact that the transesterification process leads to the formation of methoxy terminal groups (–OCH 3 ) in PETG, which exhibit higher stability compared to hydroxyl terminal groups (–OH). In addition, the properties of PETG can be controlled at the macromolecular structure level by simply regulating the content of CHDM. The chemical structure, thermal properties, mechanical performance, rheological properties, and heat shrinkage performance of PETG were systematically studied. The results demonstrated that CHDM content significantly influenced crystallization behavior, glass transition temperature ( T g ), thermal stability, and rheological properties. This work offers a theoretical foundation for advancing high-performance PETG and proposes novel synthesis strategies for applications. The results of this research support the promotion of the wide application of PETG materials in the packaging, medical, electronics, and automotive industries, especially in environmental protection and sustainable development, providing new development directions and solutions for the industry.
研究领域:
材料科学
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高分子化学
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Hui Zhang,Zhi Xiang,Pengcheng Fang,Shuhuan Zang,Zhengzhi Zheng
This research is dedicated to improving the mechanical properties and thermal stability of epoxy resin modified with polyimide. Two types of imides, along with soluble polyimides incorporating trifluoromethyl and tert-butyl groups, were synthesized as modifiers for epoxy resins. We investigated the effects of imide units with varying structures and soluble polyimides on the mechanical, thermal, and dielectric properties of epoxy resins. The six-membered imide ring demonstrated enhanced thermal stability compared to its five-membered counterpart. The modified epoxy resins exhibited a substantial improvement in mechanical properties, with elongation at break increasing from 6.5% to 11.33%, compared to unmodified ones. SEM images of the fracture surfaces of the modified epoxy resins showed distinct fracture features, which indicated enhanced toughness as a result of the incorporation of imide units. These modified resins also demonstrated excellent thermal stability (with a char yield of 31.5% at 800°C), low hydrophilicity (water absorption ranging from 0.69% to 1.54%, and contact angles between 72° and 85°), and superior dielectric properties (the dielectric constant decreased by 1.95 at 10 3 Hz, while the volume resistivity increased by two orders of magnitude). This research provides new insights into the application of epoxy resins in the aerospace and advanced electronic materials fields.
研究领域:
材料科学
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高分子化学
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Qixin Huang,Xueying Shan,Yuxuan Diao,Boyou Hou,Jinchun Li,lizhi Wang
Epoxy resin (EP) is widely used in engineering plastics, but its inherent flammability limits its broader applications. In this study, EDVAPC, a phosphorus and nitrogen-containing flame retardant, was synthesized through the Schiff reaction. Then it was incorporated into EP to enhance flame retardancy, which was used as a gas-phase and condensed-phase flame retardant. The results showed that the addition of EDVAPC maintained the good transparency of EP composites. Additionally, the maximum heat weight loss rate of EP-6%-EDVAPC reduced from 1.56%/°C to 1.31%/°C, indicating improved thermal stability. When 6 wt% EDVAPC was added to EP, the vertical combustion test (UL-94) rating achieved V-0, and the limiting oxygen index (LOI) increased to 31.2%. Compared to pure EP, the peak heat release rate (PHRR), total heat release (THR), total smoke production (TSP), and peak smoke release rate (PSPR) decreased by 33.3%, 9.1%, 39.8%, and 25.3%, respectively. Importantly, the mechanical properties of EP were not compromised. The tensile strength remained, and the impact strength was increased by 5%.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·
IF 2.8
Mingwang Fan,Zengfu Jiao,Xinjie Sun,Shilong Cong,Lingli Jia,Xia Liu,Runbin Xue,Yanfu Pi,Jun Xu
In this study, poly(octadecyl acrylate-co-maleic anhydride) (POM) was synthesized via reversible addition–fragmentation chain transfer (RAFT) polymerization, followed by grafting green biomass with maleic anhydride. The chemical structures of the synthesized polymers were characterized by Fourier transform infrared spectroscopy (FT-IR), Proton nuclear magnetic resonance ( 1 H NMR), and Gel permeation chromatography (GPC). The effects of these polymers on the crystallization behavior and cold flowability of waxy crude oil were examined using X-ray diffraction (XRD), differential scanning calorimetry (DSC), polarized light microscopy, and rheological analysis. Addition of octadecyl acrylate-maleic anhydride glyceryl monostearate (OM-GMS) the crystallization activation energy increasing largely from 1.422 to 8.420 kJ mol −1 . When POM was grafted with saturated fatty acids, the crystallinity index ( CI ) decreased by 4.14% compared to unsaturated fatty acids. Viscosity first decreased by 95.4% with OM-GMS addition, then increased with more long-chain alkanes in glyceride. Viscosity first decreased and then increased with increasing grafting rate. At a grafting ratio of 0.4, viscosity decreased by 93.4%. Incorporating green biomass into polymer design is recommended to further reduce reliance on fossil fuels. Future efforts should prioritize replacing conventional monomers in pour point depressants with sustainable biomass-based alternatives, enhancing crude oil flowability while advancing environmental stewardship.
研究领域:
石油工程
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材料科学
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环境科学
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产品关联
DOI
高影响因子
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