JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yukun Hu,Min Wang,Longyu Tian,Guangming Liao,Zaijun Lu
The novel cross-linked copolymer (BPSU-C4A-SPS) was synthesized by the copolymerization of benzoxazine-functionalized polysulfone (BPSU), calix[4]arene (C4A), and sodium 4-hydroxybenzenesulfonate (SPS). The material exhibited high thermal stability with a glass transition temperature ( T g ) of 285°C and a 5% weight loss temperature ( T d5 ) of 347°C, and enhanced hydrophilicity with a water contact angle of 76.5°. Moreover, adsorption studies on MB demonstrated that BPSU-C4A-SPS possesses a higher adsorption capacity than the benzoxazine-functionalized polysulfone homopolymer (BPSU-a) and the benzoxazine-functionalized polysulfone-calix[4]arene copolymer (BPSU-C4A). Adsorption followed the Freundlich isotherm and pseudo-second-order kinetics best describes the adsorption process of BPSU-C4A-SPS to MB, indicating multilayer chemisorption driven by electrostatic interactions and π-π stacking. This work provides a scalable strategy for designing stable adsorbents with synergistic effects, suitable for industrial wastewater treatment.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yong-Jie Zhang,Yiling Lian,Huan Gao,Ji Huang,Jing Li,Feng Jin
Perovskite-quantum dot (PQD) photoresists exhibit excellent optoelectronic properties and have become key modules for the construction of next-generation optoelectronic devices, including micro-LEDs, lasers, and optical anti-counterfeiting. However, traditional preparation of PQD photoresist requires a lot of solvent, harsh conditions, and a time-consuming process, which hinders the development of PQDs. Herein, we demonstrate in situ synthesis of CsPbX 3 (X = Br, Cl) PQDs photoresist based on polymerizable monomer tricyclic decane dimethanol diacrylate (TCDDA) for 3D printing. TCDDA not only acts as an eco-friendly solvent and efficient ligand to synthesize and stabilize the PQDs, but also serves as a functional monomer for photopolymerization to encapsulate the PQDs. The PQD photoresist is suitable for photolithography on different substrates, including metals, inorganic materials, polymers, and even paper. Furthermore, we performed 3D printing of arbitrary 3D objects with the smallest feature size of 17 μm by using the PQD photoresist. As a proof-of-concept, we depict the potential application of the PQDs photoresist for optical encryption through the construction of quick response (QR) codes and binary codes. This study provides a versatile method for the synthesis of PQD photoresist, and will pave the way for potential applications in flexible optoelectronic devices and anti-counterfeiting.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Xinjie Liu,Shujun Zhou,Yunpeng Ma,Xiaoli Gu
A promising route is established to produce a liquefied cellulose-based epoxy resin via phenol-catalyzed liquefaction, glyoxal cross-linking, and epoxidation. To simultaneously enhance flame retardancy and mechanical strength, attapulgite (ATP) was organically engineered with a phosphorus–silicon coupling agent (KH560–DOPO) to create a hybrid filler (AKD). The incorporation of 6 wt% AKD enabled the composite to achieve a UL-94 V-0 rating and a high limiting oxygen index (33.1%), while tensile strength and elongation at break increased by 36.7% and 24.1%, respectively. The analysis confirmed the successful liquefaction of cellulose and the covalent grafting of phosphorus and silicon onto ATP. The AKD/LCP composite material has a synergistic flame retardant mechanism of condensed phase and gas phase. The synergistic P–Si–C framework effectively promoted char formation and reinforced the polymer network. This work demonstrates a scalable route to stabilize renewable cellulose into high-performance epoxy resins, combining bio-based chemistry with advanced flame-retardant nanotechnology and providing new ideas for the development of fire-resistant polymeric materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yufeng Ma,Ruyi Jiang,Shouhai Li,Jianling Xia,Mei Li,Haiyang Ding,Qin Huang
The escalating environmental pollution and the critical depletion of fossil resources have underscored the urgent need for sustainable material innovations. This study pioneers a novel, eco-friendly strategy to design recyclable epoxy vitrimers endowed with shape memory functionality by synergistically integrating epoxidized soybean oil (ESO) with dynamic ester bond chemistry. A groundbreaking multifunctional curing agent (ESOEM) was engineered through sequential epoxy-amine ring-opening anhydride modification, thereby establishing a robust cross-linked network capable of thermally activated transesterification. By modulating the carboxyl/zinc/tertiary amine ratios, we achieved materials with tunable properties, including glass transition temperatures (67.8°C–81.3°C), tensile strength (14.8–42.4 MPa), and elongation at break (5.4%–60.9%). The dynamic network exhibited excellent reprocessability maintaining mechanical integrity over four reprocessing cycles, and demonstrated exceptional solvent resistance. The synergistic catalysis of zinc acetylacetonate and tertiary amine facilitated efficient bond exchange, enhancing the material's dynamic properties. A particularly innovative feature of this system was its rapid (70 s) and complete shape recovery at 60°C, driven by the unique mechanism of stress storage in frozen molecular chains and subsequent thermally triggered stress release via an aliphatic soft-segment. This research provides a green and sustainable strategy for designing multifunctional and environmentally adaptable thermosets, which can serve as one of the measures to address the end-of-life challenges of thermosets.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Wentong Gao,Mingjie Yao,Jianxiong Gu,Xuewen Guo
Supercritical CO 2 is a preferred refrigerant due to its low global warming potential (GWP = 1), high latent heat of vaporization and excellent thermodynamic efficiency. However, its application poses severe challenges to the high-temperature/high-pressure resistance and cycling stability of rubber sealing materials. Herein, the effects of modified carbon black (CB) plus glass flake (GF) and graphene (GE) on the resistance to thermal aging and supercritical CO 2 of hydrogenated nitrile rubber (HNBR) were studied. Modified CB combined with GF/GE significantly enhanced HNBR's resistance to aging in supercritical CO 2 , with an optimal 10 phr GF/10 phr GE formulation achieving peak performance. After 72 h of thermal aging at 180°C, the tensile strength retention was measured at 89.6% (20.7 MPa), while after 72 h of immersion in supercritical CO 2 at 165°C and 17 MPa, the tensile strength retention was recorded at 77.5% (17.9 MPa). Furthermore, the residual strength after additional cyclic aging remained at 10.2 MPa. Microscopic morphology confirms that there are no small voids on the modified HNBR surface caused by the escape of CO 2 . These findings enable HNBR's reliable sealing in supercritical CO 2 refrigeration and accelerate its industrial-scale adoption as a refrigerant.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yifei Li,Binxiao Wei,Jun Long,Pengfei Fan,Xuning Leng,Yongping Bai
Conventional emulsion always includes monomer, initiator, emulsifier and water of its system. However, the property of emulsion is affected by the migration of emulsifier with small molecules, which could be overcome by introducing high molecular weight emulsifiers. Thus, in this study, acrylic resin SRR566 was used as high molecular weight emulsifiers to replace traditional small molecule emulsifiers, to prepare stable polyacrylate emulsions that exhibit pressure-sensitive properties. The impact of monomer selection on emulsion performance was explored. The results showed that when the amount of functional monomer hydroxyethyl methacrylate (HEMA) is 5 wt%, the emulsion performance is optimal. A series of tests were conducted to characterize its pressure-sensitive adhesives (PSAs) characteristics. The comprehensive performance in terms of stability, bonding strength, etc., is optimal with 10 wt% high molecular weight emulsifiers. This pressure-sensitive adhesive has low viscosity and non-residue properties, making it suitable for use in protective film pressure-sensitive adhesives. Moreover, compared to small-molecule emulsifiers, high molecular weight emulsifier SRR566 has advantages such as no precipitation of small-molecule emulsifiers and water resistance.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Wenyuan Huang,Guiyuan Yang,Min Li,Yalan Yu,Hao Wang
In this study, polyvinyl alcohol/zirconium (PVA/Zr) hollow microspheres with a flower-like surface morphology are synthesized via the integration of microfluidic technology, complexation, and coprecipitation principles. This approach results in adsorption materials with exceptional characteristics, such as a high specific surface area, excellent monodispersity, and efficient recyclability. Microspheres exhibit a maximum phosphate adsorption capacity of 73.58 mg/L at pH = 2. When the initial phosphate concentration increases to 125 mg/L, the removal efficiency decreases by 54%, while the adsorption capacity remains at 60.56 mg/g. At a dosage of 0.05 g, the phosphate sorption capacity declines by 40 mg/g, but the phosphate removal rate rises by 50.59%. The theoretical maximum adsorption capacity of the microspheres is 146.53 mg/g. Furthermore, the kinetics and isothermal adsorption behavior of phosphate on PVA/Zr hollow microspheres are systematically investigated. This comprehensive analysis contributes to the development of a novel technology for addressing phosphate pollution.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Shengqiang Liao,Yuxing Su,Wenpeng Tang,Shibo Wu,Yongtao Yao,Xianzhi Kong,Jidong Dong,Dawei Zhang
Traditional bio-based polymers are usually macromolecules connected by covalent bonds, and their molecular backbones are not easy to degrade. While ensuring the excellent properties of biomass-based polymers themselves, they introduce dynamic reversible chemical bonds to improve their rapid degradation and recyclability capabilities. In this paper, lipoic acid, hydroxyethyl methacrylate, and ferric chloride were used as raw materials to prepare a random copolymer that can be degraded and recycled by thermal ring-opening polymerization. Infrared spectroscopy, thermal stability, and thermal performance tests showed that the lipoic acid/hydroxyethyl methacrylate (LAHF) polymer was a random copolymer containing dynamic disulfide bonds, dynamic hydrogen bonds, and metal coordination bonds, and had high thermal stability. In the mechanical property test, adhesion strength, and water contact angle test, the maximum tensile strength of the LAHF polymer is 104.76 ± 6.66 kPa, the maximum elongation at break is 910.15% ± 185.41%, high adhesion strength, and amphiphilic. The hemolytic performance test, coagulation performance test, biocompatibility test, degradable performance test, and recyclability test showed that the LAHF polymer had low hemolysis, low coagulability, and good biocompatibility could be rapidly degraded in lye, and could be recycled and reused, with a recovery rate of 84.60% ± 2.73%.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yunxiao Zhang,Yingjian Cai,Yuanxiang Zhou,Yuhao Liu,Hao Hu,Tao Lin
Optical measurements can overcome bandwidth limits in space charge detection, achieving high resolution, and rapid measurement. As a key component, the photoelastic properties of sensor core materials determine system accuracy. Therefore, analyzing and designing the core sensor material with high photoelastic sensitivity can contribute to further improving the testing capability of the platform. Epoxy resins are ideal for photoelastic sensors due to their diverse types and pronounced stress-birefringence effects, yet systematic studies on their photoelastic performance remain lacking, which impedes rational material design. This study elucidates molecular structure effects on epoxy resins' photoelastic performance by comparing five types with distinct chain configurations under uniaxial stress and elastic wave conditions. Molecular dynamics simulations reveal that microscopic chain motions govern stress-induced refractive index changes, while structural analyses identify resin suitability for different testing scenarios. Results show E-51 and F-51, with their ether-rich, benzene-ring structures, and long flexible chains, exhibit superior photoelastic performance under uniaxial stress, while DE184, GTE, and TTA21, featuring compact chains with high rotational mobility, are more suitable for high-frequency elastic wave measurements. Based on the analysis results, modification strategies such as adjusting molecular chain size or introducing high molar refractivity groups in appropriate proportions are proposed, which are expected to further improve the photoelastic performance of the materials. This work establishes a theoretical foundation for designing high-performance photoelastic sensors used in space charge optical measurement.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Qian Tang,Xueping Gao,Liang Li,Qiying Zheng,Kunkun Guo,Song Liu,Xuemei Sun,Xuli Chen
Freestanding graphene-based composite fiber is generally assembled into a core-sheath structure which suffers from limited loading mass and charge transfer processes. Herein, an interlocked sandwich structure is designed to develop freestanding graphene-based homogeneous composite fiber and a novel compositing–assembling process is developed to realize the designed fiber. Firstly, polyaniline (PANI) is grown on graphene oxide (GO) sheets. The produced PANI/GO (PGO) composite is then assembled with individual GO sheets (GO′) to form GO′/PGO/GO′. The produced sandwich-structured composite sheets are further interlocked together and reduced into G/PG/G (PGR) fiber. Benefiting from this rational structure design, the PANI loading mass achieves 41.6% and the charge transfer is significantly modified. Using it for supercapacitors, the specific capacitance of the PGR fiber electrode reaches 638.5 F g −1 at 1 A g −1 , and 375.9 F g −1 can be maintained at 10 A g −1 . Moreover, this freestanding homogeneous composite fiber electrode exhibits excellent flexibility. After bending with an angle of 180° for 10,000 cycles, 90.55% of the capacitance can be maintained.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Xianhua Huan,Hong Zang,Zhiwen Ji,Siheng Liu,Chao Gao,Fusheng Zhou,Jiahe Yu,Qiulin Chen,Bin Du,Yushun Zhao
Long-chain epoxy resins are increasingly adopted in high-voltage insulation systems due to their low curing exotherm, improved toughness, and superior dielectric properties. These resins are typically synthesized via chain extension between bisphenol A and short-chain epoxy precursors. However, during pilot-scale production, inadequate heat dissipation often leads to thermal overshoot, inducing undesirable side reactions and structural irregularities. In this study, we investigate how reaction-induced thermal fluctuations affect the molecular architecture of chain-extended epoxy resins and, consequently, the performance of their cured insulation materials. Differential scanning calorimetry (DSC) and gel permeation chromatography (GPC) analyses reveal that thermal overshoots exceeding 20°C promote side reactions between hydroxyl and epoxy groups, resulting in increased molecular branching, higher viscosity, and compromised processability. These structural changes further lead to reduced crosslinking uniformity, manifested by lower crosslink density, diminished mechanical toughness (impact strength decreased from 26.4 to 24.1 kJ/m 2 ), and deteriorated dielectric performance (volume resistivity dropped from 2.58 × 10 17 to 1.94 × 10 17 Ω ·cm). This work provides mechanistic insight into the interplay between reaction conditions and structure–property evolution, offering practical guidance for the controlled and scalable production of high-performance epoxy insulation materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 39
·e57531
·
IF 2.8
Dawei Gao,Haixiang Wang,Qiaoli Lu,Chao Ye,Wang Lili
Piezoelectric sensors are critical components in advancing smart electronic devices, offering significant potential for energy harvesting and self-powered applications in flexible and wearable technologies. Poly(vinylidene fluoride) (PVDF) and molybdenum disulfide (MoS 2 ) are recognized for their exceptional piezoelectric properties, with monolayer MoS 2 effectively enhancing the piezoelectric response. This study innovatively fabricates PVDF/MoS 2 composite films via electrospinning, directly inducing polar β -phase crystal formation in PVDF and significantly enhancing piezoelectric performance. Furthermore, PVDF micro- and nanoparticles were electrostatically deposited onto the PVDF/MoS 2 films, resulting in a P-PVDF/MoS 2 composite with enhanced mechanical and piezoelectric properties. Under a mechanical force of 3 N at 2 Hz, the fabricated sensor achieved an output voltage of 5 V, a short-circuit current of 0.08 μA, and a power density of 3.5 mW/m 2 , representing increases of 552% in voltage, 33% in current, and 192% in power density compared to pure PVDF sensors. The highly flexible composite demonstrates significant potential as a wearable self-powered sensor and energy harvester, addressing applications in artificial intelligence and wireless technologies.
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高影响因子
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