Journal of Applied Polymer Science最新文献_第10页

SDS Induces the Cross-Linking of PEI Molecules by Electrostatic Attraction to Prepare PVDF Ultrafiltration Membrane SDS通过静电吸引诱导PEI分子交联制备PVDF超滤膜

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-11 DOI: 10.1002/app.71337

Weiyi Kong, Min Li, Dingguang Wu, Kaizhou Zhang, Jinbo Jin

{"title":"SDS Induces the Cross-Linking of PEI Molecules by Electrostatic Attraction to Prepare PVDF Ultrafiltration Membrane","authors":"Weiyi Kong, Min Li, Dingguang Wu, Kaizhou Zhang, Jinbo Jin","doi":"10.1002/app.71337","DOIUrl":"https://doi.org/10.1002/app.71337","url":null,"abstract":"<div>\u0000 \u0000 <p>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<sup>2</sup>·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.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recyclable and Superelastic PTT Nanofiber Aerogels 可回收超弹性PTT纳米纤维气凝胶

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-07 DOI: 10.1002/app.71343

Rui Li, Xuewei Yang, Shuaiyuan Wang, Yong Liu, Jian Xu, Ning Zhao

{"title":"Recyclable and Superelastic PTT Nanofiber Aerogels","authors":"Rui Li, Xuewei Yang, Shuaiyuan Wang, Yong Liu, Jian Xu, Ning Zhao","doi":"10.1002/app.71343","DOIUrl":"https://doi.org/10.1002/app.71343","url":null,"abstract":"<div>\u0000 \u0000 <p>Aerogels have been widely used for thermal management, and the recycling of such functional materials has attracted significant research interest recently. In this study, we introduced a novel class of poly(trimethylene terephthalate) (PTT) nanofiber aerogels derived from readily accessible PTT sea-island fibers via homogenization, freeze-drying and heat treatment. We found that heating the aerogel below the melting temperature of PTT enabled the formation of chain entanglements at the junctions of nanofibers, thereby enhancing the stability of the nanofiber network. The resultant PTT aerogels exhibited outstanding elasticity (recovering fully after 99% compressive strain), inherent hydrophobicity (a water contact angle of 146°), and low thermal conductivity (0.034 W m<sup>−1</sup> K<sup>−1</sup>). Furthermore, the aerogel could be redispersed in the solvent to reform the nanofiber dispersion, allowing for reuse in aerogel production in subsequent preparation cycles. This method offers an efficient and straightforward approach for the preparation and recycling of aerogels in a cost-effective and environmentally friendly process.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal Doped Metal–Organic Frameworks (MOFs) Enable Highly Efficient Adsorption of Ibuprofen From Water 金属掺杂金属有机骨架（MOFs）能高效吸附水中的布洛芬

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-10 DOI: 10.1002/app.71346

Yufeng Liu, Lulu Bi, Jie Li, Ming Zhang

{"title":"Metal Doped Metal–Organic Frameworks (MOFs) Enable Highly Efficient Adsorption of Ibuprofen From Water","authors":"Yufeng Liu, Lulu Bi, Jie Li, Ming Zhang","doi":"10.1002/app.71346","DOIUrl":"https://doi.org/10.1002/app.71346","url":null,"abstract":"<div>\u0000 \u0000 <p>Emerging organic pollutants (EOCs), such as pharmaceutical compounds, are giving rise to growing environmental concern, necessitating the formulation of novel materials and technologies to achieve their effective removal. Herein, a novel cerium-doped MIL-101(Fe) was synthesized via a one-step solvothermal process and showed high adsorption capacity for ibuprofen (IBP) (506.22 mg/g) in aqueous solutions. Through batch experiments, the adsorption behavior of cerium-doped MIL-101(Fe) towards IBP was investigated, encompassing adsorption kinetics and adsorption isotherms, whilst examining the influence of various factors such as pH and ionic strength. The adsorption process follows pseudo-second-order kinetics (<i>R</i><sup>2</sup> = 0.984), with the calculated equilibrium capacity (qe = 31.87 mg/g) in good agreement with the experimental value (31.68 mg/g), suggesting that chemisorption is the rate-limiting step. Microscopic characterization results show that complexation, π-π interaction and hydrogen bonds worked together to IBP adsorption. And complexation was identified as the prevailing driving factor, accounting for 11.26%–40.21% of IBP adsorption at pH 3.0–10.0. Based on the results of two-dimensional Fourier transform infrared correlation spectroscopy, the interaction sequence of 0.1Ce/Fe-MIL-101-1 adsorbing different concentrations of IBP was hydrogen bonding > complexation > π-π interaction. Additionally, 0.1Ce/Fe-MIL-101-1 still showed high adsorption efficiency (> 80%) after five adsorption–desorption cycles. This work not only advances the design of multifunctional materials for the removal of emerging organic pollutants, but also provides quantitative perspectives into the interplay mechanisms between high-performance adsorbents and pollutions.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and Characterization of TPS/LDPE Blends and Composites Reinforced With Açaí Fibers: Structural, Mechanical, Photodegradation and Biodegradation Properties Açaí纤维增强TPS/LDPE共混及复合材料的开发与表征：结构、力学、光降解及生物降解性能

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-19 DOI: 10.1002/app.71335

Juliana Farinassi Mendes, Nayra Diniz Nogueira, Carolina Rezende Pinto Narciso, Queilla Santos Viana, Rafael Farinassi Mendes

{"title":"Development and Characterization of TPS/LDPE Blends and Composites Reinforced With Açaí Fibers: Structural, Mechanical, Photodegradation and Biodegradation Properties","authors":"Juliana Farinassi Mendes, Nayra Diniz Nogueira, Carolina Rezende Pinto Narciso, Queilla Santos Viana, Rafael Farinassi Mendes","doi":"10.1002/app.71335","DOIUrl":"https://doi.org/10.1002/app.71335","url":null,"abstract":"<div>\u0000 \u0000 <p>Due to inherent limitations in properties, processability, and application range of thermoplastic starch (TPS), developing alternative strategies to improve performance and versatility is essential. In this study, TPS was blended with low-density polyethylene (LDPE) and reinforced with açaí fibers (AF) to produce TPS/LDPE blends and TPS/LDPE/AF composites using maleic anhydride (MA) as a compatibilizer. The materials were processed by extrusion and compression molding and characterized in terms of physicochemical, mechanical, and degradation properties. FTIR and XRD analyses confirmed intermolecular interactions among TPS, LDPE, and AF, and an increase in crystallinity associated with the incorporation of LDPE and AF. Thermal analyses demonstrated improved thermal stability and good compatibility between TPS, LDPE, and AF. Mechanical tests showed significant improvements in tensile strength and elastic modulus, despite the presence of porosity observed by scanning electron microscopy. The blends and composites also exhibited partially hydrophobic behavior. Photodegradation tests indicated an increase in the carbonyl index compared to neat TPS, while the addition of AF provided a photoprotective effect attributed to its lignin content. In biodegradation assays, the materials showed mass losses ranging from 44% to 65% after 816 h. Overall, the developed materials represent a promising sustainable alternative, combining improved mechanical performance with environmentally compatible degradation.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proton-Conductive Matrix-Mixed Membrane Based on Sulfonated Polyimide Functionalized Vermiculite Clay 基于磺化聚酰亚胺功能化蛭石粘土的质子导电基质混合膜

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-12 DOI: 10.1002/app.71333

Zeshan Ali Sheikh, Sahid Mehmood, Amir Said, Farman Ali, Osama Gohar, Nisar Ali, Bilal Ul Amin, Fazal Suhrab Gul, Xiaohu Chen, Lei Weining

{"title":"Proton-Conductive Matrix-Mixed Membrane Based on Sulfonated Polyimide Functionalized Vermiculite Clay","authors":"Zeshan Ali Sheikh, Sahid Mehmood, Amir Said, Farman Ali, Osama Gohar, Nisar Ali, Bilal Ul Amin, Fazal Suhrab Gul, Xiaohu Chen, Lei Weining","doi":"10.1002/app.71333","DOIUrl":"https://doi.org/10.1002/app.71333","url":null,"abstract":"<div>\u0000 \u0000 <p>Fuel cell technology offers a promising alternative for clean energy, with polymer electrolyte fuel cells (PEMFCs) attracting significant interest. Herein, Sulfonated polyimide (SPI) membranes were synthesized via high-temperature direct imidization using two different sulfonated diamines. Subsequently, 3-aminopropyltriethoxysilane (APTES)-functionalized vermiculite (VMT) clay was incorporated into the SPI matrix using a solution casting method to create SPI/VMT nanocomposite membranes. Characterization techniques, including FTIR and Raman spectroscopy, XRD, TGA, and DSC analyses confirmed the successful incorporation of VMT clay into the SPI matrix. SEM analysis performed to investigate surface morphology of synthesized SPI/VMT composite membranes. The resulting SPI/VMT membranes exhibited enhanced proton conductivity (i.e., 2.142 × 10<sup>−5</sup> to 2.075 × 10<sup>−6</sup> S. cm<sup><b>−</b>1</sup>) and improved thermal, mechanical, and chemical stability compared to pristine SPI. Physicochemical and EIS analyses revealed key properties: IEC ranging from 2.43 to 3.20 mmol/g, water uptake (WU%) between 2.38% and 3.82%, hydrolytic stability 202 h, oxidative resistance of 24–25 h at 80°C, and anisotropic dimensional changes (∆<i>t</i>/∆<i>l</i>) ranging from 2.40 to 5.92. These findings highlight the potential of grafted- VMT modified SPI membranes for durable and efficient PEMFCs in applications. Future research will focus on further enhancing the VMT clay to improve membrane performance and durability.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and Thermal Conductivity of Epoxy Composites Cured by Imine-Functionalized PDMS 亚胺功能化PDMS固化环氧复合材料的制备及其导热性能

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-14 Epub Date: 2026-07-30 DOI: 10.1002/app.71289

Dongliang Wang, Lebin Zhan, Ziyi Huang, Chunrui Zhai, Fubin Luo, Ting Hu, Yan-Xin Chen

{"title":"Preparation and Thermal Conductivity of Epoxy Composites Cured by Imine-Functionalized PDMS","authors":"Dongliang Wang, Lebin Zhan, Ziyi Huang, Chunrui Zhai, Fubin Luo, Ting Hu, Yan-Xin Chen","doi":"10.1002/app.71289","DOIUrl":"https://doi.org/10.1002/app.71289","url":null,"abstract":"<div>\u0000 \u0000 <p>With the rapid advancement of high-power, miniaturized electronic devices, the demand for high-efficiency thermal management materials has grown increasingly urgent. In this work, a macromolecular silicone crosslinker (VPS) with dynamic imine bonds was synthesized via a Schiff base reaction and subsequently used to cure and crosslink epoxy monomers. By adjusting the crosslinker content, a flexible epoxy resin matrix containing dynamic covalent bonds (EVPS) was fabricated. Furthermore, the thermal conductivity of the epoxy resin was enhanced by incorporating boron nitride (BN) fillers. The results indicated that when the addition ratio of BN reached 50%, the thermal conductivity of the composite significantly increased to 3.34 W m<sup>−1</sup> K<sup>−1</sup>. The potential of such composites as thermal management materials was verified in a practical heat-dissipation scenario for LED chips. Notably, the composites prepared in this study could be degraded under chemical conditions, after which the fillers could be separated via physical filtration. This method is expected to provide a novel, efficient, and environmentally friendly solution for the sustainable development of thermal management materials.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 40","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the Mechanical Performance of Recycled Polyolefins Through Stainless Steel Mesh Reinforcement Processed by Injection Molding 通过注射成型加工不锈钢网增强再生聚烯烃的机械性能

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-14 Epub Date: 2026-07-30 DOI: 10.1002/app.71291

Laiba Asif, Abbas Hussain, Shaheryar Atta Khan, Mirza Ali Aadil Salman Baig, Hasnain Ali Shaikh, Wajahat Ahmed, Antash Najib, Adil Loya, Anjum Naeem Malik

{"title":"Enhancing the Mechanical Performance of Recycled Polyolefins Through Stainless Steel Mesh Reinforcement Processed by Injection Molding","authors":"Laiba Asif, Abbas Hussain, Shaheryar Atta Khan, Mirza Ali Aadil Salman Baig, Hasnain Ali Shaikh, Wajahat Ahmed, Antash Najib, Adil Loya, Anjum Naeem Malik","doi":"10.1002/app.71291","DOIUrl":"https://doi.org/10.1002/app.71291","url":null,"abstract":"<div>\u0000 \u0000 <p>Mechanical degradation during recycling limits recycled plastics in structural applications, perpetuating reliance on virgin polymer. This study introduces PolyMesh, a manufacturable reinforcement concept in which SS304 stainless steel woven wire mesh is embedded within recycled high-density polyethylene (rHDPE) and recycled polypropylene (rPP) via insert injection molding. The influence of mesh density on tensile (ASTM D3039/D3039M; using 4 × 4, 5 × 5, 20 × 20, and 30 × 30 mesh counts) and flexural (ASTM D790; introducing an intermediate 8 × 8 density) mechanical performance was systematically investigated. Mesh reinforcement produced modest tensile stiffness improvements (maximum Young's modulus increase: +12.4% for rHDPE with 30 × 30 mesh; +3.7% for rPP with 20 × 20 mesh). In contrast, flexural testing revealed substantially stronger reinforcement effects: rHDPE achieved up to 13.46% improvement in flexural modulus (8 × 8 mesh) and 13.77% in flexural strength (4 × 4 mesh), while rPP exhibited a flexural modulus gain of 61.40% (8 × 8 mesh) and flexural strength improvements of up to 15.06%. The divergent tensile–flexural response indicates PolyMesh acts primarily through geometric bending stiffness enhancement rather than interfacial load transfer, consistent with the elastic modulus mismatch between SS304 and the polymer matrix. These findings establish PolyMesh as a viable, scalable strategy for upgrading recycled polyolefins in flexure-dominated, non-critical structural applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 40","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Performance of Styrene–Butadiene/Butyl Rubber Blends Modified by In Situ Copper Surface Modification of Carbon Nanotubes 碳纳米管原位铜表面改性改性丁苯橡胶/丁基橡胶共混物性能研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-14 Epub Date: 2026-07-30 DOI: 10.1002/app.71281

Shao-Hui Wang, Yu-Xing Xu, Zhong-Yi He, Li-Li Li, Ya-Yu Dong, Li-Ping Xiong, Cheng-Jie Ye, Yuan-Cheng Jiang, Meng-Yang Wei

{"title":"Study on the Performance of Styrene–Butadiene/Butyl Rubber Blends Modified by In Situ Copper Surface Modification of Carbon Nanotubes","authors":"Shao-Hui Wang, Yu-Xing Xu, Zhong-Yi He, Li-Li Li, Ya-Yu Dong, Li-Ping Xiong, Cheng-Jie Ye, Yuan-Cheng Jiang, Meng-Yang Wei","doi":"10.1002/app.71281","DOIUrl":"https://doi.org/10.1002/app.71281","url":null,"abstract":"<div>\u0000 \u0000 <p>Conductive elastomers with low filler loading remain challenging due to MWCNT agglomeration and poor conductive network continuity. In this work, MWCNT/Cu<sub>2</sub>O hybrid fillers were prepared via a hydrothermal method and incorporated into SBR/IIR composites at a fixed total loading of 1 phr. Cu<sub>2</sub>O particles anchored onto MWCNT surfaces improved filler dispersion and promoted localized three-dimensional conductive pathways within the rubber matrix. The optimized hybrid system exhibited significantly reduced surface resistivity and charge transfer resistance, together with a 31.4% increase in thermal conductivity, while maintaining favorable mechanical flexibility. The synergistic interaction between MWCNTs and Cu<sub>2</sub>O enhanced electron and phonon transport efficiency, providing an effective strategy for developing multifunctional conductive elastomers for flexible electronic applications.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 40","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High Temperature Aging Behavior and Failure Mechanism of Polyacrylamide-Based Acid Thickeners 聚丙烯酰胺基酸性增稠剂的高温老化行为及失效机理

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-14 Epub Date: 2026-07-30 DOI: 10.1002/app.71283

Haoxiang Yang, Jiaheng Wang, Wei Wang, Xiaoyan He, Jinghua Lu, Jingyue He, Xiao Jing, Yong Wei, Yatang Dai

{"title":"High Temperature Aging Behavior and Failure Mechanism of Polyacrylamide-Based Acid Thickeners","authors":"Haoxiang Yang, Jiaheng Wang, Wei Wang, Xiaoyan He, Jinghua Lu, Jingyue He, Xiao Jing, Yong Wei, Yatang Dai","doi":"10.1002/app.71283","DOIUrl":"https://doi.org/10.1002/app.71283","url":null,"abstract":"<div>\u0000 \u0000 <p>Polyacrylamide is widely used in petroleum drilling due to its excellent thickening ability in hydrochloric acid systems, yet as petroleum development advances toward ~10,000-m-class ultra-deep wells and downhole temperature rise substantially, the high-temperature aging behavior and failure mechanisms remain insufficiently elucidated. Herein, we synthesized three polyacrylamide-based thickeners, including an AM homopolymer, an AM/DAC copolymer, and an AM/DAC/NVP terpolymer, and systematically investigated their high-temperature aging behavior and failure mechanisms. It was found that all three thickeners lost stability during high-temperature acidic aging. Initially, the polyacrylamide-based thickeners formed gel-like flocculates, which further evolved into brownish-black solids with increasing aging temperature and time. Mechanistic analysis indicates that, under high-temperature acidic conditions, polyacrylamide-based thickeners undergo acid-catalyzed hydrolysis of AM amide groups and DAC ester linkages to form polyacrylic acid structures, while NVP suppresses this process by weakening neighboring-group effects; then the resulting polyacrylic acid undergoes further dehydration/condensation to form intrachained anhydride (cyclization) and interchain anhydrides (crosslinking), increasing hydrophobicity and ultimately causing the failure of the thickeners. This work elucidates the aging behavior and failure mechanism of polyacrylamide-based thickeners in high-temperature acidic, guiding the design of high-temperature acidic thickeners.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 40","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design Considerations for Polymer–Deep Eutectic Solvent Hybrid Systems for Transdermal Drug Delivery 经皮给药用聚合物-深共熔溶剂混合系统的设计考虑

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-14 Epub Date: 2026-08-01 DOI: 10.1002/app.71290

Madhavi Kailas Kapale, Madhur Kulkarni, Pranav J. Shah, Furqan A. Maulvi

{"title":"Design Considerations for Polymer–Deep Eutectic Solvent Hybrid Systems for Transdermal Drug Delivery","authors":"Madhavi Kailas Kapale, Madhur Kulkarni, Pranav J. Shah, Furqan A. Maulvi","doi":"10.1002/app.71290","DOIUrl":"https://doi.org/10.1002/app.71290","url":null,"abstract":"<p>Polymer-based transdermal drug delivery systems (TDDS) require precise control of solubility, permeability, mechanical integrity, and stability to achieve effective and patient-friendly therapy. Deep eutectic solvents (DESs) and therapeutic DES (THEDES) have emerged as versatile, potentially sustainable and composition-tunable excipients capable of modulating these properties within polymer matrices used in patches, films, hydrogels, nanoparticles, and microneedles. Through extensive hydrogen-bond networks, DESs interact with polymer functional groups to regulate crystallinity, plasticization, viscosity, and drug–polymer affinity, thereby influencing drug loading, release kinetics, and transdermal flux. This review presents a polymer-centric, design-oriented framework that links DES composition with polymer compatibility and formulation performance. DESs are highlighted as active modulators of polymer structure–property relationships, enabling simultaneous control over drug solubilization, permeation enhancement, and matrix stability. The interplay between DES physicochemical descriptors, including polarity, viscosity, and hydrogen-bonding capacity, and polymer characteristics is critically analyzed to guide rational formulation design. Emerging in silico approaches, including molecular dynamics, quantitative structure–property relationship (QSPR), and quantitative structure–toxicity relationship (QSTR) models, are discussed as predictive tools for screening DES–polymer compatibility and accelerating optimization. Key challenges related to safety, regulatory uncertainty, scalability, and long-term stability are also addressed. Overall, polymer–DES hybrid systems represent a promising platform for developing efficient, stable, and customizable TDDS.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 40","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.71290","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0