JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Zhigang Zhan,Wei Wu,Huanbo Hu,Junjian Ye,Lu Cui,Qiuyang Yu,Changxi Chen
This study presents the synthesis of a waterborne polyurethane (WPU-A) emulsion modified with (3-(2-aminoethyl)aminopropyl)trimethoxysilane (AEAPTMS). Self-cleaning materials were developed by applying WPU-A emulsions onto thermoplastic polyurethane (TPU) components, which were shaped using selective laser sintering (SLS), through a post-treatment impregnation and curing method. Additionally, superhydrophobic nano-SiO 2 (sn-SiO 2 ) was incorporated onto the surface of the TPU/WPU-A material. The resulting TPU/WPU-A/sn-SiO 2 self-cleaning composites were created, and the self-cleaning capabilities along with other characteristics of the two TPU-coated materials were examined individually. Findings indicated that the water contact angle for pure TPU measured 123.8°, while the TPU/WPU-A0.5/sn-SiO 2 -20, treated with WPU-A emulsion, exhibited an increased angle of 153.3°, achieving superhydrophobicity. The incorporation of sn-SiO 2 particles enhanced the surface roughness of the TPU/WPU-A0.5/sn-SiO 2 -20 material, facilitating the easy removal of surface contaminants. This enhancement contributes to improved anti-pollution properties and effective self-cleaning performance of the TPU material. The compressive strength of the TPU/WPU-A0.5/sn-SiO 2 -20 skeletonized parts reached 0.733 MPa, representing a 168% increase compared to the pure TPU skeleton. The TPU/WPU-A0.5/sn-SiO 2 -20 material, which is coated with WPU-A and integrated with sn-SiO 2 , demonstrates excellent self-cleaning and mechanical properties, indicating its potential for various applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Min Deng,Chuxiang Zhou,Gang Wu,Yinan Xu,Shenwen Fang,Ming Duan
Anisotropic particles have garnered significant attention due to their unique structural characteristics, and emulsion polymerization is one of the synthesis strategies. In this study, for the first time, poly(styrene-maleic anhydride) (SMAA) and small-molecule surfactant were employed as the composite emulsifiers during the emulsion polymerization of styrene (St) for synthesizing peanut-shaped polystyrene (PS) nanoparticles. The results of NMR, FTIR, and SEM confirmed this method was reliable. Furthermore, the polymerization conditions were optimized by using particle morphology as the primary optimization parameter. The optimized polymerization conditions are as follows: St concentration of 11 wt%, emulsifier concentration of 0.6 wt% in water, the emulsifier being a composite system of sodium dodecylbenzenesulfonate (SDBS) and SMAA in a mass ratio of 1:2, initiator concentration of 0.5 wt% (relative to St mass), crosslinker dosage 0.6 wt% (relative to St mass), reaction temperature of 70°C, and the reaction duration of 6 h. The resulting polymer products exhibited a distinct peanut-like morphology, with an average particle diameter of 54.1 nm and an aspect ratio of 2.44. These findings provide some novel insights into the preparation of anisotropic particles.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Xuefan Li,Xinde Tang,Zihao Tang,Haichao Guo,Xinyan Wang,Fei Ma,Yanan Chao,Xuanjie Zheng,Ruixin Fu,Laixue Pang,Fuying Dong
Emulsified asphalt is a critical component of low-temperature pavement materials and plays a pivotal role in determining the durability of asphalt mixtures. Lignosulfonate, with advantages such as facile preparation, environmental friendliness, recyclability, and energy conservation, has been used in various fields, but the insufficient emulsifying capacity limits its application as an emulsifier for asphalt. To meet the needs of emulsified asphalt as pavement materials, the modification of sodium lignosulfonate (SL) was conducted by graft copolymerization and the Mannich reaction, resulting in two kinds of emulsifiers with high performance for asphalt emulsion. The optimal conditions for both modification processes were thoroughly examined by using ductility as the key indicator. The molecular composition and structure of the products were characterized by using Fourier transform infrared spectroscopy. Additionally, the emulsification performance and surface activity of the modified SL were evaluated, and the particle size of the emulsified asphalt was determined. The emulsification performance and the surface activity of the modified SL were significantly improved compared with those of the original SL. Notably, the emulsified asphalt by the modified SL exhibited superior performance and enhanced storage stability. The ductility of the emulsified asphalts at 15°C increases from 46.3 to ~70 mm, as well as the storage stability from 4.8% to ~2% before and after the addition of the modified SL. In contrast, the emulsifier with rich amide and amine groups by graft copolymerization is superior to that by the Mannich reaction for asphalt emulsification.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Yanlin Jiang,Yang Gao,Hangqing Xue,Yeqiang Lu,Lixin Xue
Polyamide (PA) based thin-film nanocomposite (TFN) membranes containing zeolitic imidazolate framework (ZIF) particles, denoted as PA (ZIF)-TFN membranes, were fabricated via interfacial polymerization (IP) between m-phenylenediamine (MPD) and 1,3,5-benzenetricarbonyl chloride (TMC). ZIF-8 particles were incorporated by direct dispersion into the oil-phase solution. Subsequently, the membranes were etched with xylenol orange disodium salt (XO) under acidic conditions to produce reverse osmosis (RO) membranes with improved water flux and salt rejection. These improvements were attributed to additional water-permeation channels and the sealing of non-selective interface defects. Solution pH, etching duration, and XO concentration also play roles in the structure and performance of the optimized RO membranes. After 12 h of etching, superior TFN/XO (12) RO membranes were obtained with rejection rate increased from (99.0% ± 0.2%) to (99.7% ± 0.1%), and water flux increased from (42.3 ± 0.9 L·m −2 ·h −1 ) to (65.1 ± 0.9 L·m −2 ·h −1 ). In addition, the membranes exhibited excellent boron removal rate, operational stability, and anti-pollution performance under conditions of 32,000 ppm NaCl and 55 bar.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Mingsheng Li,Yiming Xu,Shizhe Peng,Shiyang Yi,Jingwen Li,Zhongqi Guo,Yonghong Cheng,Lei Zhang
Silicone elastomers are valued for their mechanical and insulating qualities but traditionally cannot self-heal, limiting their long-term utility. This research presents a dynamic silicone network created using combed silicone precursors, effectively reducing synthesis costs and enhancing self-healing capabilities. The network incorporates dynamic cross-linking via aminopropyl groups that react with isocyanate and bulky secondary amines, giving materials that achieve over 80% healing efficiency for mechanical properties and can repair electrical breakdown holes. The material also shows excellent recyclability, retaining more than 80% of its mechanical properties and over 90% of its DC breakdown strength. Higher crosslink density improves mechanical strength and insulation but reduces healing and recycling efficiency. Conversely, increasing the content of dynamic bonds improves healability and reprocessability, although at some cost to mechanical strength. This innovative approach provides a cost-effective, highly functional solution for advanced electrical insulation needs.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Zhuqing Wang,Yiyang Li,Zhiwei Huang,Min Wang
There are rich precious metal resources in electronic waste. At present, the recycling of noble metals extracted from electronic waste is a hot topic for researchers. In this study, we successfully prepared a kind of polyacrylonitrile-poly(m-phenylenediamine) composite membrane (PAN-PmPD composite membrane) with a smooth surface and a large number of reducing groups by one-step oxidation and hydrogen bonding. The experimental data show that under the optimum adsorption conditions (adsorption time 5 h and pH = 3), the maximum adsorption capacity of the composite membrane for Au(III) reaches 466.45 mg/g, and it can be regenerated by soaking in sodium bisulfite solution. In addition, the PAN-PmPD composite membrane is applicable to the selective adsorption of over 98% of Au(III) in the actual CPU (central process unit) leachate. In the adsorption mechanism, it is revealed that it binds Au(III) majorly through the redox and coordination effect. Therefore, compared with other adsorbent materials, the PAN-PmPD composite membrane has high selectivity and easy operation, and has broad application future in the areas of resource recovery and circular economy.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Gang Chen,Hai Lan
To address the issues of collapse-type degradation and poor toughness observed in PLGA-based bone repair scaffolds during degradation, this study blends PLGA with poly (trimethylene carbonate) (PTMC) and fabricates microsphere scaffolds through the emulsion method followed by sintering to form solid microsphere scaffolds. Additionally, to enhance the osteogenic potential of the scaffold, β-tricalcium phosphate (β-TCP) and varying amounts of titanium dioxide (TiO 2 ) are incorporated into the polymer. Performance analysis of the composite microsphere scaffolds reveals that the scaffold exhibits a continuous pore structure with a compressive modulus comparable to that of cancellous bone. After the incorporation of inorganic particles, the compressive modulus exceeded 70 MPa. In vitro degradation experiments confirm that the composite microsphere scaffold prepared by blending PTMC exhibited a degradation rate of 9.1% at week 12 while maintaining stable macroscopic morphology. Moreover, the pH at the final stage of degradation effectively mitigated the issue of acidic degradation associated with PLGA (pH = 6.32). In vitro cell experiments demonstrate that the prepared microsphere scaffolds possess good biocompatibility, and the incorporation of β-TCP and TiO 2 enhances the composite scaffold's osteogenic potential and antibacterial properties. This scaffold holds promise as a novel approach for the treatment of bone defects.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Lei Zou,Jiajun Ren,Fangdong Ning,Xianmei Ma,Matthew J. Webber,Yongjun Zhang
Slide-ring hydrogels have been shown to have exceptional toughness and stretchability. Current designs typically rely on polyrotaxane architectures of cyclodextrin (CD) macrocycles treaded onto polyethylene glycol (PEG) chains. The use of alternative macrocycles to prepare slide-ring hydrogels remains largely unexplored. In this study, we present a cucurbit[7]uril (CB[7]) slide-ring hydrogel prepared from multiblock PEG polymers segmented with guest moieties of varying affinity for binding to CB[7]. Following threading with allyl-modified CB[7] to form pseudopolyrotaxane structures, the side-chains are then covalently cross-linked to yield the slide-ring architecture. The resulting hydrogels exhibit unique mechanical properties modulated by host–guest binding affinity and dynamics. Given the exceptional molecular recognition capabilities of the CB[n] family of macrocycles for diverse guests, using these as alternatives to CDs offers an opportunity to expand the design space for slide-ring hydrogel architectures.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Haoyue Wang,Shanshan Li,Tianliang Dai,Yang Yang,Lina Wang,Juming Yao,Guocheng Zhu,Baochun Guo,Parpiev Khabibulla,Ming Zhang
To address the increasingly diverse demands in modern society, it is essential to develop multifunctional textiles that possess both thermoregulation and UV-resistant properties. This study integrates coaxial and uniaxial electrospinning techniques to create multifunctional phase change nanofibers (PCNF) that exhibit high levels of hydrophobicity, ultraviolet (UV) resistance, and thermoregulation. During the coaxial electrospinning process, the thermal regulation of the nanofiber membrane is enhanced by incorporating octadecane into the core layer, resulting in a latent heat value of 82.47 J/g. Adding TiO 2 to the sheath layer significantly enhances the nanofibers' UV resistance, achieving a UV protection factor of 200.5. Furthermore, the inclusion of pearl-like microspheres through uniaxial electrospinning significantly boosts the hydrophobicity of the PCNF, resulting in a water contact angle (WCA) of 148° and excellent stain-resistant characteristics. This multifunctional composite membrane thus offers a highly promising solution for both outdoor protective applications and flexible wearable devices.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Jie Mao,Huiyao Zhao,Runqi Yang,Yongzhi Meng,Mao Pi,Yuan Wu,Wei Yuan
Silicone rubber serves as a critical insulating material in electrical engineering due to its outstanding antifouling characteristics, mechanical robustness, and electrical performance. Nevertheless, its insulating properties require further enhancement to meet the demanding requirements of ultra-high voltage (UHV) applications, particularly for long-distance, high-capacity power transmission. In this work, we developed an improved insulating silicone rubber by grafting p–p conjugated N -vinyl carbazole (VK) groups—known for their space charge trapping capability—onto thiol-silicone oil, followed by cross-linking with end-methyl branched vinyl silicone oil. The modified material demonstrated optimal insulating performance at a VK group concentration of 0.5 wt%, achieving a 23.19% increase in breakdown field strength compared to unmodified silicone rubber films. This study provides a viable approach for enhancing the dielectric strength of polymer-based silicone rubber materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Tao Liu
There is a growing interest in how to recycle waste corn straw (CS) more easily, which is still a concern. Turning CS into a high-value functional absorbent is becoming a good choice. However, the preparation of CS absorbents is still costly, complicated, and unfriendly to the environment. Herein, a facile and eco-friendly hydrophobic strategy based on in situ curing of polydimethylsiloxane (PDMS) is proposed for obtaining the PDMS-coated CS oleophilic absorbent. Combining the dip-coating method and heat treatment can simultaneously achieve hydrophobicity on both the outer surface and inner part of PDMS-coated CS, which shows outstanding water repellency and good oil–water separation ability. PDMS-coated CS can absorb different oils and organic solvents and shows excellent recyclability, as well as a high oil retention capacity and good self-cleaning and anti-fouling ability. This work provides a simpler preparation method for converting waste agricultural biomass into oil-absorbing materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Weihang Zhang,Shiyun Lin,Youlu Hua,Yanfa Mao,Qihang Xv,Jian Zhou,Deqiang You,Sheng Cao,Xiaojian Wang
Conventional ureteral stents frequently cause mucosal damage during placement due to surface hydrophobicity and elevated friction coefficients. Additionally, post-insertion complications such as bacterial adhesion and calculus deposition pose significant clinical risks. To address these challenges, we developed a polyacrylamide/sodium alginate-Ca 2+ (PAAm/SA-Ca 2+ ) dual-network hydrogel as a functional coating for ureteral stents. By modulating calcium chloride (CaCl 2 ) concentration, we optimized the PAAm/SA-Ca 2+ dual-network hydrogel's cross-linking density, resulting in enhanced hydrophilicity, reduced swelling ratio (from 48.5% to 17.3%), and a lower coefficient of friction (COF) (from 0.19 to 0.06). The hydrogel coating exhibited excellent stability and sustained lubricity with a uniform thickness of approximately 16 μm. Notably, the coating reduced calculus deposition by 74% over a 7-day period and demonstrated exceptional antibacterial efficacy, achieving 97% inhibition against Escherichia coli ( E. coli ) and 98% against Staphylococcus aureus ( S. aureus ). Furthermore, the coating displayed favorable hemocompatibility. These findings highlight the potential of PAAm/SA-Ca 2+ dual-network hydrogel coatings for improving ureteral stent performance.
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高影响因子
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