JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Junhao Fan,Jinsheng Sun,Zongwu Lu,Yiheng Huang,Guiqing Xu,Ting Liao,Fubo Ma,Jian Li
Polymer shale inhibitor is an indispensable additive for high-performance water-based drilling fluid due to its excellent high temperature resistance and high inhibition. However, in the high temperature environment of deep and ultra deep wells, conventional linear polymer shale inhibitors have poor rheological properties and limited adsorption sites, leading to shale hydration and expansion, wellbore instability and drilling safety accidents. Therefore, this paper innovatively prepared multi adsorption site hyperbranched superpolymer shale inhibitor (HPN-ADNL). At the same time, the same functional monomer was used to synthesize linear polymer shale inhibitor (ADNL) for comparative evaluation. It is found that HPN-ADNL has a highly branched three-dimensional network structure, and the initial degradation temperature can reach 246°C. Under the condition of adding 1 wt% HPN-ADNL, the linear expansion rate of bentonite pellets decreased from 77.34% to 27.76%, and the rolling recovery rate of shale at 180°C increased from 25.72% to 82.16%. Hyperbranched polymer HPN-ADNL has better inhibition performance than linear polymer ADNL. The unique hyperbranched structure of HPN-ADNL makes it have more adsorption sites, interact more closely with shale, and show excellent inhibition. The development and mechanism analysis of HPN-ADNL provide technical support for the efficient and safe drilling of deep and ultra deep wells.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Jingjing Wang,Xin Liu,Huanghui Yao,Aichao Liu,Jianmin Wang,Kai Zhang
Solar-powered steam generation is acknowledged as a highly efficient method for seawater desalination and wastewater purification. However, simultaneous generation of fresh water and removal of pollutants is still challenging for the treatment of saline wastewater containing organic pollutants. Herein, composite hydrogels with vertically aligned channels were prepared by directional freezing technology. The formation of vertical channels could greatly reduce mass transfer resistance and improve both interfacial evaporation rate and adsorption rate of pollutants. Compared to the non-vertically aligned composite hydrogel, this uniquely structured hydrogel exhibited superior desalination performance, attaining an evaporation rate of 1.99 kg·m −2 ·h −1 and an energy conversion efficiency of 94.36% when exposed to one sun's illumination. Meanwhile, the hydrogel evaporator showed outstanding salt resistance even in the evaporation of brine with high salinity and stable desalination performance over successive evaporation for 10 cycles. In addition, the composite hydrogel was used as an adsorbent for the removal of perfluorooctanoic acid (PFOA). Due to the presence of directional channels, the composite hydrogel achieved higher adsorption capacity and faster adsorption rate than the non-vertically aligned composite hydrogel. This work realized integration of solar desalination and PFOA removal in a single evaporator, offering a facile strategy for treating saline wastewater containing organic pollutants.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Jiehao Qu,Jicheng Li,Guang Yang,Nianzhao Gao,Xiangdong Liu
Poly(methyl methacrylate) (PMMA) possesses high optical transparency but suffers from insufficient mechanical strength. Most toughening methods compromise optical clarity, processability, or industrial scalability. Herein, we present a scalable toughening strategy based on copolymerization of methyl methacrylate (MMA) with 2-hydroxyethyl methacrylate (HEMA), combined with transesterification between their units. The resulting random MMA-co-HEMA copolymers retain excellent visible-light transmittance (above 90.0%, 5 mm) while achieving remarkable mechanical enhancements, including increases of 74% in tensile strength and 22% in impact strength compared with linear PMMA. Further studies reveal that the transesterification between HEMA and MMA units induces a lightly cross-linked network. This approach not only offers advantages in simplicity, cost-effectiveness, and compatibility with industrial processes such as casting molding, but also effectively prevents uncontrollable autoacceleration during bulk polymerization. These findings provide new insights for the designing of high-performance optical thermoplastics with promising potential in structural optical applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Weiyi Kong,Min Li,Dingguang Wu,Kaizhou Zhang,Jinbo Jin
In this study, PVDF/SMA membranes were fabricated via non-solvent induced phase separation(NIPS), followed by grafting of polyethyleneimine (PEI) onto the membrane surface through reaction with the anhydride groups of SMA, yielding PVDF/SMA-PEI membranes. Owing to the considerable free volume of PEI chains, stacking tends to occur during cross-linking with SMA, resulting in a loose selective layer and poor retention of small- to medium-sized dye molecules. To address this, the small-molecule additive sodium dodecyl sulfate (SDS) was introduced into the PEI solution. The electrostatic interaction between the sulfate ions of SDS and PEI promotes a more uniform distribution of PEI on the membrane surface, reducing inter-chain aggregation and forming a denser selective layer. The resulting PEI-SDS membrane maintained a high pure-water flux of 220 L/m 2 ·h while achieving methyl blue, indigo carmine, and acid fuchsin rejection rates of 98.86%, 99.57%, and 86.77%, respectively. In conclusion, this work provides a simple method for preparing highly efficient positively charged membranes for dye removal.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Bai Yi,Chao Yan,Lijuan Nie,Jinglan Su,Guoqi Xu
This study strategically incorporated a preferred chain extender (containing reversible disulfide bonds) into the waterborne polyurethane (WPU) backbone. The WPU matrix was subjected to silanization modification, and cellulose nanocrystals (CNC) were uniformly dispersed as multifunctional reinforcing fillers to form a “multi-reinforced system” (AHWPU-C X ). Molecular dynamics simulations were employed to elucidate the molecular-level interfacial interaction mechanism between silanized/unsilanized WPU and CNC. The binding energy between the silanized WPU and CNC increased by 67.5%, and the superior interfacial compatibility guaranteed the overall performance of the composite. The prepared AHWPU-C 2 exhibits a 20% increase in the temperature corresponding to the peak mass loss rate, a 127% enhancement in tensile strength, a 313% increase in elastic modulus, and an elastic recovery rate as high as 94%. Its self-healing efficiency reaches 84.6%, realizing an excellent balance between high mechanical performance and efficient self-healing ability. In addition, AHWPU-C 2 can be recycled via hot pressing at 120°C. After the first recycling, the tensile strength and elongation at break of AHWPU-C 2 were restored to 85.4% and 91%, respectively. This work provides a feasible multi-enhancement strategy for the development of high-performance WPU, while offering an effective solution to the interfacial compatibility issue between nanofillers and the polymer matrix.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Chenglin Wang,Xiaojuan Ma,Xintao Ma,Zihao Liu,Miaoming Huang,Wanlin Xu,Hao Liu,Suqin He,Wentao Liu
To achieve high strength and modulus of thermosetting polyurethane materials at room temperature, and self-healing and reprocessing at elevated temperatures, this study proposes a dynamic covalent crosslinking strategy where disulfide bonds are predominantly located in the rigid hard segments of crosslinked polyurethane urea (C-PUUSS). The resulting polyurethane urea exhibits outstanding fracture toughness (157.2 MJ·m −3 ), tensile strength (60.9 MPa), elongation at break (479%), and a remarkable Young's modulus (235.4 MPa). Despite its crosslinked structure, C-PUUSS demonstrates good reprocessability and self-healing capability due to disulfide bonds. Compared with the pristine sample, the reprocessed C-PUUSS retains nearly unchanged tensile strength, while its elongation at break and toughness increase, with a slight decrease in Young's modulus. The self-healing efficiencies of tensile strength and elongation at break for C-PUUSS are 61.7% and 61.9%, reflecting the inherent trade-off of thermosetting networks: high crosslink density brings excellent mechanical properties but inevitably restricts chain mobility and slows the exchange of dynamic bonds. Moreover, the reprocessed C-PUUSS maintains favorable self-healing performance. In addition, C-PUUSS exhibits excellent solvent resistance. This study achieves a synergy of high crosslinking density, self-healing, and reprocessability through molecular design, offering a novel approach for the development of sustainable high-performance polyurethane materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Caixia Zhao,Tian Fu,Xinyu Wu,Huici Han,Yan Lv,Guoxiang Zou
Dynamic covalent polymer networks represent new opportunities in the design of sustainable epoxy resins due to their excellent reprocessability. However, these vitrimers typically exhibit mechanical brittleness and poor resilience performance, limiting their applications in sealing, vibration damping, and impact resistance. E44/poly(2-methyl-1,3-propanediol adipate)/glutaric acid (E44/PMPA/GA) epoxy elastomers, with high resilience, reprocessability, and chemical degradability, were synthesized through epoxy-carboxylic acid opening-ring reactions. The E44/PMPA 2 /GA 8 vitrimers exhibited the highest cross-linking density (226.3 mol/m 3 ), a T g of 22.8°C (from DMA), and high thermal stability ( T i : 337°C). Owing to flexible chains and a moderate cross-linking density, the E44/PMPA 10 exhibited superior resilience (residual strain 5.6% after five tensile cycles). Meanwhile, the dynamic ester bonds within the networks endowed the E44/PMPA/GA with self-healing ability and recyclability. In addition, the vitrimers were completely chemically degradable. By regulating the synergistic effects of flexible chain segments and dynamic bonds, this work provided a promising and feasible route for the preparation of epoxy elastomers that integrate high resilience, reprocessability, and chemical degradability.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Weiwei Cui,Yajuan Hou,Xiangwen Peng,Wenshuang Liang,Xin Chen,Xinyu Niu,Wei Deng
To improve the insulation and energy-storage performance of polyetherimide (PEI) films, surface-modified PEI/polydopamine (PDA) films were fabricated via in situ polymerization of dopamine. This study explores the influence of the PDA layer on the wide-temperature dielectric and energy-storage properties of PEI. The self-growth process of the PDA layer promotes the rearrangement of PEI molecular chains and enhances the films' mechanical properties. Its Coulomb blockade characteristics effectively suppress the injection of electrode carriers and improve the breakdown strength. The modified films present enhanced room-temperature performance. The breakdown strength reaches 647.2 kV/mm, which is 64% higher than that of pure PEI films. The discharge energy density ( U d ) reaches 9.51 J/cm 3 , 326% higher than that of pure PEI films. The corona resistance time is extended to 2.3 times that of pure PEI films. At 150°C, the dielectric loss at 1 kHz increases from 0.0095 to 0.019. The film maintains U d of 2.54 J/cm 3 but shows discharge efficiency of only 34.2%. This study clarifies the enhancement of the PDA layer on the room-temperature performance of PEI films and inherent limitations in high-temperature energy storage. It provides an important experimental basis for the design of PEI films modified for wide-temperature energy storage.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·Vol. 143
·期 36
·e71072
·
IF 3.1
Yuanzhi Liu,Xiaoming Wang,Ling Weng,Yingtang Zhang,Hao Wu
With the increasing complexity of thermal management requirements for high-power and precision systems, the development of thermal conductive pads is shifting from merely pursuing high thermal conductivity to also taking into account excellent flexibility. Polydimethylsiloxane (PDMS) is an ideal base material for thermal pads due to its excellent elasticity, wide temperature stability, and electrical insulation properties. However, its inherent thermal conductivity is low, and it requires the addition of high thermal conductivity fillers for enhancement. This paper uses polydopamine (PDA) to functionalize the surface of hexagonal boron nitride (h-BN), yielding h-BN@PDA. Then, using the phenolic groups on the PDA layer as binding sites, copper (Cu) particles were deposited in situ through chemical reduction to prepare the h-BN@PDA-Cu composite filler. Subsequently, the filler was mixed into the PDMS matrix to prepare the PDMS composite material, and the properties were systematically studied. As a result, the composite containing 20 wt% h-BN@PDA demonstrated a thermal conductivity of 0.336 W/(m·K). The in situ formed Cu particles further built additional metal thermal conductive bridges between the fillers, and the thermal conductivity of h-BN@PDA-Cu/PDMS composite material reached 0.342 W/(m·K) while maintaining good flexibility and electrical insulation at the same filler content. This research provides effective approaches for the development of thermal conductive pads that possess high thermal conductivity, high flexibility, and reliability.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·Vol. 143
·期 39
·e71244
·
IF 3.1
Jiangwei Zhao,Yunxiao Dong,Xiaofeng He,Jin Zhu,Jinggang Wang
The transition from fossil feedstocks to bio-based alternatives with tunable properties is a crucial step towards establishing a sustainable materials industry. In this study, a series of high molecular weight bio-based poly (pentamethylene- co -ethylene glycol 2,5-furandicarboxylate) (PPEF) copolyesters were successfully synthesized by the conventional melt polycondensation method from 2,5-furandicarboxylic acid and 1,5-pentanediol (PeDO) derived from biomass resource. The intrinsic viscosities [ η ] of PPEF copolyesters ranged from 0.70 to 0.84 dL/g with the number-average molecular weights ( M n ) ranging from 30,200 to 36,300 g/mol. The thermal stability, mechanical properties, and optical clarity of PPEF copolyesters were significantly improved with the increase in 1,5-pentanediol content. Among them, the elongation at break of PPEF-36 was as high as 182%, while maintaining a tensile modulus of up to 2350 MPa and a tensile strength of 75 MPa. In addition, PPEF copolyester demonstrated excellent gas barrier properties, with carbon dioxide and oxygen barrier improvement factors (BIFp) of 5.7–8.1 times and 3.1–5.5 times, respectively, compared with polyethylene terephthalate (PET). Therefore, bio-based PPEF copolyesters with high toughness and excellent gas barrier properties will demonstrate significant application potential in food and medical packaging as well as specialized industrial sectors.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Bincan Deng,Dingding Chen,Fernando López Lasaosa,Caimiao Zheng,Yiyan He,Chen Xuan,Yuwen Cui
Reliable viscosity prediction of methacrylated hyaluronic acid (HAMA)/methacrylated gelatin (GelMA) hybrid hydrogels is essential for reproducible multi-batch biofabrication, yet batch effect can severely impair the cross-batch generalization of data-driven models. We established two experimentally measured HAMA/GelMA viscosity datasets collected at different time periods and covering different formulation ranges to characterize batch-effect-induced distributional shifts and support same-batch, cross-batch, and out-of-distribution (OOD) evaluation. Baseline machine learning (ML) models achieved high same-batch predictive performance ( R 2 > 0.90) but degraded markedly under cross-batch conditions ( R 2 = 0.265–0.772). To address these challenges, we propose a physics-informed correction strategy integrating data- and model-level physical priors. A physics-informed data preprocessing (PIDP) strategy filters samples that violate the rheological priors that viscosity increases monotonically with polymer concentration and decreases with temperature. PIDP increased cross-batch R 2 from 0.713 to 0.892 and reduced RMSE by up to 38.8%. A physics-informed neural network (PINN) further improved physical plausibility of the predictions. Integrating PIDP-PINN strategy (IPPS) achieved the best overall performance ( R 2 = 0.898) and reduced OOD errors by 37.7%. The strategy enables more robust and physically consistent hydrogel viscosity prediction for practical biofabrication, providing a transferable route toward reliable modeling and intelligent design of soft polymer materials under realistic experimental variability.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Zebin Xu,Hui He,Ailong Lv,Taotao Wang
Crosslinking modification of polymer emulsions is an effective approach to suppress swelling and improve coating durability. In this study, an epoxy-functional silane oligomer crosslinker (PGOPTS) was synthesized via a silane hydrolysis–condensation route using γ-(2,3-epoxypropoxy)propyltrimethoxysilane (GOPTS) as the monomer. A styrene–acrylate latex (SAL) crosslinked by PGOPTS was used, and the process variables were optimized using response surface methodology. Under the optimal conditions of 80.8°C reaction temperature, 0.58 wt% PGOPTS content, and 6.84 mol% tetrabutylammonium bromide (TBAB), the modified latex film exhibited a 35.70% reduction in water absorption and a 13.4° increase in water contact angle, indicating improved water resistance. The modified latex was further applied to polymer cement waterproof coatings. Silanol self-condensation and reactions with cement hydration products promoted the formation of an organic–inorganic co-crosslinked network. The resulting coating exhibited a 30.61% reduction in water absorption, a 14.2° increase in contact angle, and enhanced durability. This work demonstrates a practical crosslinking strategy for durable polymer cement waterproof coatings.
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高影响因子
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