JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Zhipeng Luo,Peng Cai,Wenhui Chen,Jiaxing Chen,Silong Cai,Haochen Huang,Zixin Liu,Hefeng Zhang,Yifu Huang
Applying a nonchemical approach of polymer crystallizing for altering micro-conformations of a nonconjugated linear polymer can promisingly achieve enhanced photoluminescence without sacrificing mechanical properties of the matrix. Herein, to pursue an excellent nucleating agent for tuning the crystallization micro-conformation, a new type of two-dimensional polymer nanosheet (2DP) with benzimidazole-linked structure, with high specific surface area and unique shape morphology, was synthesized for frozen/thawed (F/T) polyvinyl alcohol (PVA)-based ionogel, which could provide an efficient way to significantly enhance the fluorescence of PVA by inducing crystalline conformation without changing chain topology. Notably, incorporating a mere ~0.05 wt.% of 2DP elevated the quantum yield of the PVA ionogel from 9.2% to an impressive 85.7%. Besides, at a higher 2DP doping of ~0.7 wt.%, a distinct afterglow effect originating from 2DP was also observed. It was revealed for the first time that the F/T cycle during the preparation of the PVA ionogel could effectively increase the photoluminescent intensity, mainly ascribed to PVA but not 2DP. The fluorescence enhancement within the ionogel could be predicted by quantum chemistry calculations and a deep learning model. This new ionogel shows great potential as smart luminescent polymer for flexible lampshade.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Ruwei Guo,Mingyu Guo
The growing demand for stretchable electronics is driving the development of better stretchable conductive sensors. Herein, we present a simple in situ fabrication strategy for constructing wrinkled silver nanowire (AgNW) networks, enabling high-performance stretchable electronics. AgNWs are first vacuum-filtered onto an electrospun polyurethane–urea (PUU) mat. A subsequent thermal treatment then simultaneously induces wrinkling and partially embeds the network within the elastic substrate. The fabricated conductive films exhibit outstanding electromechanical performance, featuring exceptional stretchability (> 900% elongation at break), with minimal resistance variation (Δ R / R 0 = 1.35 at 120% strain and 9.9 at 240% strain). They maintain excellent cycling stability over 1000 stretch/release cycles at 50% strain, coupled with remarkably low initial resistance (50 mΩ/sq) and high conductivity (5.02 × 10 6 S/m). Functioning dually as a stretchable electrode and strain sensor, the AgNW/PUU composite provides both electrical conduction and mechanical sensing capabilities. Notably, the embedded AgNWs network inherently provides antibacterial properties (> 99% bacterial reduction) and biocompatibility, while the wrinkled morphology enhances interfacial contact with biological tissues, rendering the conductive films particularly suitable for bio-integrated electronic devices. Crucially, the current AgNW-based conductive films exhibit random wrinkle patterns, making them withstand complex, multi-axial deformations in wearable applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jianfeng Li,Jin Zhang,Jiajia Jiang,Wenjing Xiang,Shuang Xia,Guangyun He,Zhicheng Fu,Ting Wang,Wenli An,Mingjun Chen,Jinni Deng
Durability of flame retardant of ammonium polyphosphate (APP) on cotton fabrics is often compromised due to its inherent hydrophilicity and low adhesion. This water-soluble APP is easy to wash off especially when exposure to wet and polluted environments. Intense interaction and stable hydrophobicity are the key strategy to improve its flame-retardant durability. Therefore, in this study, coating composites with polyfluoroacrylate (C 6 F) and APP were synthesized, exhibiting both good flame retardancy and hydrophobicity. With just 0.2 wt% C 6 F and 4.5 wt% APP, water contact angle of this coated cotton fabric reaches 138.3°, and limiting oxygen index value is increased to 29.5% with self-extinguishing behavior meeting B1 rating standard. Additionally, due to low surface energy of C 6 F, more fluorine elements distribute on the coating surface, demonstrating excellent antifouling properties to many domestic pollutants like coffee, milk, cola, ink, and sand. Significantly, stability and durability of flame retardancy are successfully achieved owing to hydrogen bonding and charge interaction between C 6 F, APP, and fabric substrate. Accordingly, it could maintain its weight gain rate, hydrophobicity and flame retardancy after 10 times water rinse. This proposes a facile and effective strategy to prolong the service life of flame-retardant cotton fabrics even under polluted conditions.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yingqiu Wang,Zenghui Qian,Mingzhu Zhou,Guodong Jiang,Yucai Shen
This study developed a highly conductive polyaniline (PANI) composite film. The synthesis involved first reacting epichlorohydrin (ECIP) with hydroxyl groups on hydroxypropyl methylcellulose (HMPC), creating reactive sites. Subsequently, aniline (An) was grafted onto the HMPC backbone via ECIP bridging, followed by oxidative polymerization to yield polyaniline grafted hydroxypropyl methylcellulose (PANI-g-HMPC). Further internal doping of the PANI was achieved by grafting 3-chloro-2-hydroxypropyltrimethylammonium chloride (QA) onto PANI-g-HMPC. This approach effectively overcame critical defects of conventional PANI, including poor stability and film-forming ability, low film strength, poor PANI dispersion in composite films, and low conductivity etc. Furthermore, this work introduces, for the first time, the use of glutaraldehyde (GA) to address the hygroscopicity of PANI-g-QA/HMPC film by aldol reaction to consume hydroxyl groups of HMPC, successfully preparing a hydrophobic PANI-g-QA/HMPC/GA composite film. The optimized composite film exhibits a high conductivity of 1.582 S/cm and a tensile strength of 120 MPa, approximately double that of the typical in situ polymerized PANI composite films. The resulting PANI-g-QA/HMPC/GA composite film holds broad application prospects in fields such as conductive films, conductive coatings, conductive paste et al.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Q. Xu,C. B. Zhang,L. J. Wei,Y. X. Li,W. L. Liang,F. J. Jing,Y. X. Leng
Ureteral stents are employed to relieve ureteral stenosis, but they face challenges including high friction that causes endothelial damage, microbial colonization, and encrustation. The long-term use of ureteral stents usually leads to pain, increased urinary frequency, and even secondary surgery. To address these issues, ureteral stents require lubricating antifouling surfaces to reduce tissue damage, bacterial infection and encrustation. Herein, we report an antifouling and lubricating hydrophilic coating based on the zwitterionic polymer poly(sulfobetaine methacrylate-acrylic acid) (poly(SBMA-AA)) prepared using UV-initiated polymerization. Controlled monomer feed ratios were used to study the antimicrobial and anti-encrustation capacities. The poly(SBMA-AA) coatings were hydrophilic, which facilitated the formation of a hydrated layer, thereby reducing friction. The friction test revealed that the coatings could achieve an initial friction coefficient as low as 0.023. After 15 days of immersion in artificial urine, the coefficient of friction remained stable at approximately 0.027, indicating its long-term lubricity and potential to reduce tissue damage. Furthermore, as the AA monomer molar ratio increased, the coatings exhibited enhanced antibacterial adhesion, and demonstrated superior anti-encrustation performance in a 30-day urinary crystallization model. This study proposes a novel approach for developing multifunctional ureteral stent coatings that integrate long-term lubrication, antibacterial adhesion activity, and anti-encrustation capabilities.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Linfeng Hu,Yunlong Wang,Hongying Niu,Hongxia Zhu
This study developed chitosan-based hydrogels as field-deployable carriers for sustained fungicide delivery to enhance crop disease resistance and yield. Citral and chitosan were reacted at three molar ratios (N1, N1.5, N2) via acid-catalyzed Schiff-base condensation, and the resulting hydrogels were characterized by FTIR, 1 H NMR, SEM and WXRD. Structural analyses confirmed the formation of self-ordered imine clusters with a d -spacing of 20.5 Å stabilized by non-covalent interactions. N1, the highest-cross-linked hydrogel, showed the best thermal stability ( T 10 = 160°C) and the lowest swelling, releasing 7.0% slower than N1.5 and 37.9% slower than N2. Antifungal assays demonstrated that N1 provided the strongest inhibition against five phytopathogens ( Rhizoctonia solani , Fusarium graminearum , Botrytis cinerea , Rhizoctonia cerealis , and Phytophthora capsici ), improving inhibition of B. cinerea , P. capsici , and F. graminearum by 56.8%, 82.9%, and 181.3%, respectively, compared with free citral. These hydrogels combine antifungal activity, water retention, thermal stability and controlled release, providing a promising strategy for green fungicide delivery in agriculture.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Xue Tao,Fangfang Gong,Wenzeng Wang,Jingyu Wang,Lijun Qian,Jianwei Hao
In recent years, ammonium polyphosphate (APP) based intumescent flame-retardant systems (IFR) were widely used in ethylene-vinyl acetate copolymer (EVA). However, APP-based IFR have poor water and migration resistance. This paper introduced metal alginates to improve flame retardant efficiency and water resistance of IFR intramolecularly. The alginates IFR(IMA) with three sources and one synergistic agent were prepared by acid source and gas source (APP) and carbon source dipentaerythritol (DPER). IMA were APP/DPER assembled by sodium alginate, cobalt alginate and silane coupling agent. IMA significantly improved flame retardant, smoke suppression and migration resistance of EVA. Compared with 25%APP/DPER, the LOI values of 25%ICA increased obviously, UL 94 increased from no grade to V-0, the peak of heat release rate value and total smoke produce value decreased by 36.1% and 16.8%, respectively. The reason was that the transition metal cobalt promotes the efficiency of carbonization and graphitization, and reduces the ratio of CO and aromatic compounds in the gas phase thermal decomposition products. None significant mechanical properties changed after adding the flame retardant The weight loss rate was significantly reduced by immersion in hot water at 70°C. The improvement of water resistance was related to the increase of water contact angle of ICA flame retardants.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Shiqi Hong,Yongqiang Lan,Yanhong Zhang,Bingbing Fu,Ping Peng
Inspired by natural biomineralization, high-performance pervaporative desulfurization membranes were engineered through a one-step synthesis strategy. Cysteamine served as both an inducer and catalyst, steering the deposition of silica (SiO 2 ) onto graphene oxide (GO) nanosheets that were pre-dispersed in a polydimethylsiloxane (PDMS) matrix. The Fourier transform infrared spectroscopy and x-ray diffraction results demonstrated that in situ-formed SiO 2 was attached firmly onto the GO sheets. The scanning electron microscopy results showed that the GO/SiO 2 fillers were uniformly dispersed in the PDMS matrix. The incorporation of GO/SiO 2 within the lipophilic PDMS matrix markedly enhanced the desulfurization performance of the resultant biomineralized membranes. The fabricated membranes were evaluated for the separation of thiophene from an n -octane/thiophene mixture by pervaporation. It was demonstrated that the membrane displayed high selectivity towards thiophene. The sulfur enrichment factor reached a maximum of 6.30 for the biomineralized membrane containing 0.3 wt% GO, accompanied by a permeation flux of 6973 g m −2 h −1 in a 1312 ppm thiophene/ n -octane mixture at 303 K. The desulfurization performance of the biomineralized membranes maintained practically constant over 168 consecutive hours, displaying long-term stability. This facile one-step strategy offers a readily scalable route to fabricate high-performance pervaporative membranes for deep gasoline desulfurization.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 18
·e56826
·
IF 2.8
Xiaohui He,Zengwei Qin,Defu Chen
Solid polyelectrolytes (SPEs) have garnered considerable attention and extensive research due to their exceptional flexibility, low cost, and ease of industrial production. This study synthesized bis-imidazole cationic functionalized benzonorbornadiene block copolymers rP(NB-MGE- b -BenzoNBD-BisIm + TFSI − ) via ring-opening metathesis polymerization (ROMP). The block copolymers were blended with lithium trifluoromethanesulfonate (LiTFSI) and nano SiO 2 to prepare the composite solid polyelectrolytes membrane (CSPEMs) rP(NB-MGE- b -BenzoNBD-BisIm + TFSI − )/LiTFSI/SiO 2 by a solution casting method for applications in lithium-ion batteries (LIBs). This research investigates the effect of different nano-SiO 2 content on the ionic conductivity and electrochemical stability of the composite SPEs. The relationship between the intrinsic structure and properties of rP(NB-MGE- b -BenzoNBD-BisIm + TFSI − )/LiTFSI/z wt% SiO 2 ( z = 0, 2.5, 5.0, 7.5) was studied. When the SiO 2 content is 5.0 wt%, the maximum ionic conductivity reaches 9.3 × 10 −5 S cm −1 at 30°C and 1.5 × 10 −3 S cm −1 at 80°C. The NCM811/CSPEM/Li battery exhibits an initial reversible discharge capacity of 149.7 mAh g −1 at a current density of 0.2 C, with a coulombic efficiency maintained above 96%. After 50 cycles at a current density of 0.2 C, the capacity remains at 148.9 ± 8 mAh g −1 , with the coulombic efficiency continuing to exceed 96%, which demonstrating robust cycling stability.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 30
·e57224
·
IF 2.8
Wenxi Liao,Chaofan Du,Luxin Li,Daiyi Wang,Yujian Wu,Jiansong Luo,Jiajia Deng,Yanyan Huang,Pan Wang,Yuxin Yang
Solar-powered interfacial evaporation technology is seen as a potential way to alleviate the crisis of water scarcity through seawater desalination. The key to the success of this technology hinges upon the efficient conversion of solar energy into heat energy, which is intimately connected with the innovative development of composite photothermal membranes. In this study, polyaniline (PANI) with excellent light absorption and carbon black (CB) with good stability were added to the polymer material polyaryl ether nitrile (PEN), and the PANI/CB-PEN nanofiber membrane was prepared by electrospinning blending. Due to the good stability of PEN polymer, the solar evaporator has excellent salt resistance and stability. The results show that the fiber membrane has the best light absorption effect when the reaction time is 80 min and the CB content is 50.0%. The composite fiber membrane temperature can reach 68.6°C, the evaporation rate is 1.51 kg m −2 h −1 , while the evaporation rate is 1.38 kg m −2 h −1 in a 3.5% NaCl brine. The photothermal conversion efficiency was 94.17%. The PANI/CB-PEN nanofiber membrane-based interfacial evaporation device demonstrates sustained performance in repeated tests, showing promising potential for long-term, scalable solar-powered seawater desalination applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Kuiling Wei,Xuejuan Cao,Yan Wu,Xiaoyu Yang,Boming Tang,Tianqiang Jiang
Recycling thermosets is essential for environmental protection and the sustainable development of a circular economy. Among various approaches, dynamic chemistry has proven to be an effective solution for recycling thermosetting polymers. To improve the sustainability of thermosetting polyurethanes and investigate their thermoreversible behavior with different combinations of disulfide bonds and Diels–Alder bonds, this study developed castor oil-based polyurethane vitrimer (Co-PUV 1/Co-PUV 2/Co-PUV 3) with varying dynamic covalent networks. The chemical structure, dynamic reversible reactions, rheological characteristics, and thermal-responsive self-healing were analyzed. The results revealed that disulfide bonds, combined with Diels–Alder bonds, can significantly enhance the thermoreversible response of the crosslinked networks. The first-rank combination was found in Co-PUV 2, which contained Diels–Alder bonds and 4.22 mol% disulfide bonds. This sample exhibited the shortest stress relaxation time and the largest creep range between 60°C and 100°C. Additionally, Co-PUV 2 achieved an 84.4% recovery rate of mechanical properties at 85°C and 0.3 MPa and regained its melt-recyclability at 135°C. In general, this work provides insights into the influence of disulfide and Diels–Alder bonds on the thermoreversible behavior of castor oil-based polyurethane vitrimer, enlightening a foundation for the design of recyclable polyurethane using a multi-dynamic bond strategy.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Dongjiong Hong,Yanli Xiang,Peng Zhang,Jianbo Fang,Xu Meng,Chenyi Wang,Qiang Ren
A kind of waterborne polyurethane with good flame retardancy, smoke suppression, hydrophobicity and strength improvement using phosphorus-based and silicon-based diols as reactive flame retardants (WSPPU) was synthesized and characterized. The LOI value of WSPPU has increased from 19.1% to 28.5%, and the UL-94 rating reaches V-0. Cone calorimeter testing shows that the peak heat release rate ( p HRR) and the peak smoke generation rate ( p SPR) of WSPPU are 348 kW/m 2 and 0.03 m 2 /s, reduced by 57.9% and 82.4% compared with pure WPU respectively. During the thermal decomposition process of WSPPU, a stable and dense carbon layer containing P(O) O Si is formed, endowing WSPPU with more outstanding heat insulation and smoke suppression performances. The water contact angle of this film reached 98.5° due to the formation of a hydrophobic surface derived from the migration of the silicone segments to the surface as demonstrated by XPS. DMA shows that the coexistence of polyphosphate and silicon segments can adjust the degree of microphase separation of polyurethane, enabling polyurethane to have a greater tensile strength of 25.56 MPa with a 26.64% increase relative to neat WPU. The obtained waterborne polyurethane has excellent comprehensive performance and shows great application potential in the industrial field.
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高影响因子
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