JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 2.8
Zhoufeng Wang,Wenlong Yao,Wenchi Zhang,Puxi Zheng
Optically transparent amorphous copolyarylates based on tetramethylbisphenol A (TMBPA) and bisphenol B (BPB) were synthesized via low-temperature interfacial polymerization. These copolyarylates exhibited high solubility, with number average molecular weight ( M n ) of 1.48 × 10 4 –1.92 × 10 4 g/mol, weight average molecular weight ( M w ) of 6.64 × 10 4 –9.13 × 10 4 g/mol, polydispersity index (PDI) of 3.45–5.89, and intrinsic viscosity of 0.62–0.83 dL/g. Incorporation of TMBPA alters the thermal properties of the copolyarylates, decreasing thermal stability ( T 5% ) from 473.4°C to 444.4°C and char yield from 34.6% to 19.7%, but increasing the glass transition temperature ( T g ) from 202.9°C to 234.1°C. TG/FTIR and Py-GC/MS analysis revealed that methyl groups adjacent to the phenolic hydroxyl group promoted chain breakage and accelerated thermal decomposition. The main gaseous products included H 2 O, CO 2 , CO, CH 4 , and phenolic compounds. Tensile strength, tensile modulus, and elongation at break of copolyarylates ranged from 51.83 to 60.21 MPa, 1023.28 to 1283.14 MPa, and 32.9% to 53.6%, respectively. This study highlighted the solubility-thermal property balance, providing insights for designing processable high-performance polyarylates.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 2.8
Zhenyu Zhang,Xueqing Hu,Haosen Ma,Yu He,Yan Zhou,Xiangdong Liu,Yuming Yang
This study proposes a recycling strategy utilizing waste plastic bottles (PET bottle bodies and PE caps) to successfully fabricate a bilayer composite film, PET/(PE–TiO 2 ), which exhibits excellent passive radiative cooling performance and enhanced mechanical properties. The upper layer, consisting of highly reflective PET nanofibers fabricated via electrospinning, achieves a high solar reflectance (> 96%) across the solar spectrum (0.3–2.5 μm). The lower layer, a PE–TiO 2 composite prepared by melt blending, enhances the overall mechanical strength of the material. Systematic characterization demonstrates that the PET/(PE–TiO 2 ) bilayer film maintains high optical performance while significantly improving mechanical strength (breaking strength increased by > 5-fold) and thermal stability (decomposition temperature > 400°C). Both theoretical calculations and experimental validation confirm that the material achieves a net cooling power exceeding 100 W/m 2 under standard solar irradiation (1 kW/m 2 ). Practical applications demonstrate surface temperature reductions of approximately 10°C for the human body and 5.3°C for electronic devices. This work not only achieves efficient synergistic recycling and value-added utilization of PET and PE but also provides a new approach for developing low-cost, high-performance, and environmentally friendly passive cooling materials, with broad application prospects in personal thermal management, electronic thermal regulation, and building energy efficiency.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 2.8
Changchuan Wang,Jinchuang Zhang,Bingpei Li,Jiao Jia,Yingliang Liu
Poly(methyl methacrylate) (PMMA) exhibits a high coefficient of friction, limiting its use in tribological applications. To address this, graphene oxide (GO), synthesized via the Hummers method, is functionalized with silane KH570 to enhance its compatibility and subsequently incorporated into PMMA through in situ bulk polymerization, resulting in PMMA/KH570-GO composites. The structural, morphological, and functional properties of the composites are characterized using x-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Mechanical and tribological behaviors are assessed through tensile and pin-on-disc tests. The results indicate that the addition of 0.06 wt% KH570-GO enhances tensile strength by 13.4%, achieving a value of 76.25 MPa, and significantly reduces the coefficient of friction from 0.7 to 0.25, compared to pure PMMA. Beyond this threshold, a higher KH570-GO loading of 0.20 wt% diminished the tensile strength to 59.23 MPa. The optimal content, in contrast, improved mechanical properties and promoted the development of a lubricating graphitic film during friction, which collectively contributed to a marked enhancement in tribological performance.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 2.8
Hongdan Bao,Kaiyuan Huo,Jing Zou,Hao Chen,Guangyu Chen,Hengrui Zhang,Yan Guo,Na Li,Weidong Xia
Adhesives are essential in diverse industrial fields, and bioadhesives play a critical role in medicine for minimally invasive tissue repair and device integration. However, existing systems, particularly polyethylene glycol (PEG)-based adhesives, often suffer from brittleness, inadequate performance under extreme temperatures, and limited substrate versatility. To overcome these challenges, we developed a novel polyphenol-PEG adhesive platform through citric acid (CA)-mediated liquid–liquid phase separation (LLPS). This process, driven by CA-regulated hydrogen bonding as confirmed by XPS, FTIR, UV spectroscopy, and solution studies, produces adhesives with exceptional properties: peel strength near 15 N/cm, shear strength exceeding 4 MPa on hydrophilic substrates, rapid adhesion within 10 s, and operational stability from liquid nitrogen temperatures up to about 150°C, maintaining over 1 MPa shear strength at 200°C exposure. The adhesive demonstrates effective sealing of fractured bone, adhering to wet biological tissues and serving as an eco-friendly solution for restoring cultural artifacts. This study establishes the condensate formed by the CA-regulated LLPS process in the polyphenol-PEG system as a novel, ultra-robust adhesive suitable for demanding biomedical and industrial applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 2.8
Yao Bao,Beiyi Zhang,Jinbo Gao,Jing Chen,Yibing Lin,Congying Ma,Yuanlie Yu,Jilin Wang
Natural silk textiles with passive radiative cooling properties show promising potentials for energy-efficient personal thermal regulation. Herein, the thermal regulation patches (SF@Gly-BN) based on silk fibroin (SF), glycerin (Gly), and boron nitride nanoflakes (BNFs) are fabricated. The incorporation of BNFs enhances the solar reflectance from ~0.3 to ~0.7 in the high solar spectrum region while maintaining a high infrared emissivity of ~0.85 in the mid-infrared region for SF@Gly-BN patches. The enhancement of these optical properties endows the SF@Gly-BN patches with excellent passive radiative cooling performance. Indoor tests show a ~14.7°C sub-ambient temperature drop for the SF@Gly-BN patch with 20 wt% BNFs, whereas the outdoor testing exhibits an average sub-ambient temperature drop of ~14°C on the clear days with the average solar irradiance of 1050 W m −2 . Moreover, the SF@Gly-BN patch shows great potentials for personal thermal regulation which can reduce skin temperatures by ~6.5°C and ~3.0°C respectively in outdoor and indoor conditions. This research offers an approach to developing efficient, eco-friendly, and biocompatible wearable thermal management products.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Yuhao Ma,Dingchen Yan,Juntao Xu,Jian Pan,Shanshan Xu,Hongsheng Tan
Polyethylene (PE) is widely used as a general-purpose plastic; however, its application in harsh environments is limited by poor resistance to thermal cycling crack resistance. In this study, a dual-modification strategy was developed to improve the thermal cycling crack resistance of PE by incorporating fibrous wollastonite (FW) and ethylene-vinyl acetate copolymer (EVA). FW acts as a rigid reinforcing phase that restricts polymer-chain mobility and helps suppress crack initiation. EVA serves as a flexible toughening phase and promotes energy dissipation during deformation. The combination of FW and EVA delays crack propagation and improves the crack resistance of PE. The combined use of FW and EVA produces a synergistic effect involving physical crack blocking and energy dissipation, thereby delaying crack propagation. Consequently, the modified PE demonstrates substantially enhanced resistance to thermal cycling cracking. The PE coating samples maintained structural integrity after cyclic exposure between −40°C and 60°C for 100 h. In addition, the tensile strength increased to 14.94 MPa, representing a 39% improvement compared with pristine PE (10.73 MPa). The combined FW-EVA system effectively improves PE's thermal cycling crack resistance, offering a feasible strategy for its high-demand applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Zhengyuan Liu,Dandan Yang,Ruihong Ning,Manting Zhang,Jing Luo,Sifan Cheng,Jingqu Liu,Jinming Liu,Li Qing,Xiaoming Li
The rapid evolution of pulsed-power systems and microelectronic modules, which are demanding ever-higher energy-storage densities, has intensified the search for polymer dielectrics that can deliver both high discharged energy density ( U d ) and robust charge–discharge efficiency ( η ). To address the low energy storage density of polyetherimide (PEI). Two-dimensional montmorillonite nanosheets were synthesized by the liquid-phase intercalation method in this study. Herein, organophilic montmorillonite (OMMT) nanosheets were homogeneously dispersed in polyetherimide (PEI) via solution casting. At only 0.5 wt% OMMT, the resultant film exhibits a relative permittivity of 4.20 while maintaining an ultralow dielectric loss (tan δ < 0.015) across 10 2 –10 5 Hz. Weibull statistics yield a characteristic breakdown strength of 542.98 MV/m, corresponding to a 36.5% increase over neat PEI, and deliver a discharge energy density of 5.68 J cm −3 -an enhancement of 95.9% with charge–discharge efficiency remaining above 80.0%. Finite-element simulations (COMSOL) reveal that the OMMT layers establish an electrostatic shield that impedes electrical-tree propagation, rationalizing the superior breakdown endurance. These results underscore the high-temperature potential of OMMT/PEI nanocomposites for next-generation dielectric capacitors.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Hongyi Ma,Wenmin Wang,Heng Li,Suping Ji,Yanfeng Li,Jinhua Yu,Qiang Xia
Oral ulcer is a common and painful oral mucosal disease that severely impairs patients' quality of life. Conventional topical therapies often suffer from limited retention and inadequate efficacy due to the unique oral microenvironment. In this study, a multifunctional microneedles (MNs) patch based on metal-phenolic network (MPN) was developed for the treatment of oral ulcer. The MPN was formed by coordinating zinc ions (Zn 2+ ) with epicatechin (EC), resulting in the formation of ZnEC nanoparticles (ZnEC NPs), which were incorporated into a dissolvable gelatin methacryloyl (GelMA) hydrogel matrix to construct the MNs. The developed ZnEC/Gel MNs exhibited excellent mechanical, adhesive, degradation, and penetration properties. Meanwhile, the MNs enabled targeted delivery and controlled release of EC and Zn 2+ directly into the ulcer site, effectively scavenging reactive oxygen species (ROS). In addition, the ZnEC/Gel MNs exhibited significant antibacterial efficacy against common oral pathogens in vitro compared to the commercial propolis oral film (POF). Moreover, in vitro cytocompatibility assessment showed that ZnEC/Gel MNs significantly improved the proliferation and migration of human oral keratinocytes (HOKs), outperforming the POF. These results demonstrated that this MPN-based microneedles patch offered an effective management for oral ulcer, with potential for extension to other mucosal diseases.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Jianwei Ji,Qiuyi Lu,Tianyao Liu,Yunlong Hu,Lian-li Zou,Guoguang Xu,Maoxiang Jing
Succinonitrile (SN) electrolyte is emerging as an ideal candidate for solid-state electrolytes due to its high ionic conductivity, wide electrochemical stability window, and low cost. However, severe side reactions with lithium metal and poor mechanical strength have significantly hindered the rapid development of SN-based electrolytes. In this study, an in situ thermal polymerization technique was employed to integrate SN with cross-linked poly(methyl methacrylate) (PMMA), yielding a composite solid electrolyte that combines high ionic conductivity with excellent mechanical properties. The optimized SN-PMMA50 electrolyte achieves a room-temperature ionic conductivity of 2.95 × 10 −4 S cm −1 , an electrochemical stability window of 4.75 V, a lithium-ion transference number of 0.68, and a tensile strength of 165 MPa. Furthermore, the introduction of fluoroethylene carbonate (FEC) as a solid electrolyte interphase (SEI)-forming additive significantly suppresses the side reactions between SN and the lithium anode. The optimized SN-PMMA50-FEC30 composite electrolyte exhibits excellent electrochemical performance and cycling stability. The assembled Li/LiFePO 4 solid-state battery retains 96% capacity after 200 cycles at room temperature. The incorporation of PMMA and FEC markedly enhances the mechanical properties of the electrolyte and the stability of the electrode/electrolyte interface, which provides a highly promising strategy for the application of SN-based polymer electrolytes in lithium metal batteries.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Yong Wang,Minglong Huang,Hongxia Li,Yu Li,Songlin Chen,Yu Li
This study synthesized a non-ionic amphiphilic self-emulsifying waterborne epoxy resin using toluene diisocyanate (TDI), polyethylene glycol monomethyl ether (mPEG), and epoxy resin E44 as raw materials via a two-step synthesis. The waterborne epoxy resin was emulsified using the phase inversion method, and the emulsification process was investigated. The prepared emulsion was cured using a commercially available aqueous curing agent, followed by mechanical properties testing of the cured products. Results from FTIR and 1 H NMR hydrogen spectrum analyses confirmed the successful grafting of hydrophilic polyether segments onto the epoxy resin without ring-opening of epoxy groups. The optimal synthesis temperatures for the two-step process were determined as 50°C (first step) and 65°C (second step), yielding transparent and pure products. During inversion emulsification, the stirring speed was 2500 rpm, and the water addition rate was 0.03 mL/s. Emulsion stability reached its highest grade when the molecular weight of mPEG was 1000, with the smallest particle size of 109.23 nm and the lowest polydispersity index of 0.201. The cured product exhibited tensile strength of 5.43 MPa and flexural strength of 29.49 MPa, demonstrating favorable mechanical strength and flexibility.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Bofan An,Hui Ye,Xuefen Wang
As the global population of chronic kidney disease (CKD) patients continues to expand, high-performance adsorbents for uremic toxins have emerged as a critical solution to alleviate dialysis treatment challenges. In this work, a layered double hydroxide (Mg–Al LDH) was prepared via a facile hydrothermal approach and subsequently functionalized for adsorption of protein-bound toxins by organosilicon quaternary ammonium salt (Q-Mg–Al LDH). The synthesized Q-Mg–Al LDH was then incorporated into sodium alginate (SA) solution to achieve a three-dimensional Q-Mg–Al LDH/SA composite aerogel (SA-Q) by freeze-drying for easy maneuverability as adsorbents. Specifically, the organosilicon quaternary ammonium-grafted LDH (Q-Mg–Al LDH) offered both long alkyl chain and positively charged quaternary ammonium moieties, enabling synergistic adsorption through electrostatic and hydrophobic interactions, thereby exhibiting superior adsorption capacity (222.7 mg/g) for hippuric acid (HA, one typical protein-bound uremic toxin). The optimized SA-Q possessed outstanding adsorption capabilities (141.8 mg/g); more importantly, it could maintain a 95% removal rate even after 8 cycles, and also could selectively remove the diffused HA in the dialysate during hemodialysis, indicating its excellent operability and recyclability. This work demonstrated a promising strategy for constructing advanced adsorbents to eliminate uremic toxins from dialysate to facilitate the development and popularization of miniaturized hemodialysis equipment.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Tiwen Xu,Ruijie Ren,Junjie He,Fei Yan,Shuxin Guan,Shuyan Jiang,Junye Huang,Jingshui Xu,Ying Yang,Kaiyang Huang
Silica-hybridized carbon black (CB-SiO 2 ) shows a promising eco-friendly filler for tread rubber, combining the advantages of both potentially. Here, in situ hydrolyzed nano-SiO 2 anchored on CB particles was prepared by varying the tetraethyl orthosilicate (TEOS) dosage, and its effect on the properties of natural rubber (NR) composites was studied. Results demonstrated the existence of hydrogen bond between CB and SiO 2 , and increasing the anchored SiO 2 delayed curing, yet enhanced tensile strength by 35.6% and lowered rolling resistance (tan δ @60°C) by 22.7% while maintaining wear resistance (8 mL TEOS/10 g CB, no coupling agent). The improvement is attributed to the hybrid's higher specific surface area, favorable particle-size distribution, and surface protrusions, which strengthen rubber-filler interaction despite the reduced dispersive free energy ( γ s d $$ {\gamma}_s^d $$ ). This work presents a green and sustainable strategy for designing high-performance CB in its production process.
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高影响因子
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