ACS Applied Polymer Materials最新文献

{"title":"Multiscale Pore-Structured Aerogel Fiber Metafabric for High-Performance Noise Reduction and Thermal Insulation","authors":"Lingling Huang,&nbsp;Yucheng Tian*,&nbsp;Fan Wu,&nbsp;Xia Yin*,&nbsp;Roman A. Surmenev,&nbsp;Jianyong Yu,&nbsp;Yi-Tao Liu and Bin Ding,&nbsp;","doi":"10.1021/acsapm.5c0074810.1021/acsapm.5c00748","DOIUrl":"https://doi.org/10.1021/acsapm.5c00748https://doi.org/10.1021/acsapm.5c00748","url":null,"abstract":"<p >The accelerated progress of modern transportation and urbanization has resulted in severe environmental noise pollution, imposing an adverse impact on economic productivity and public health. Concurrently, the synergistic challenges of waste heat accumulation and extreme low-temperature conditions present critical threats to equipment reliability. Hence, a unique strategy, based on dual air-gelation, is developed to synthesize an aerogel-structured fiber metafabric for noise reduction and thermal insulation directly. By modulating the interactions among polymers, solvents, and water, the interaction of charged jets can be facilitated, which in turn promotes rapid phase separation and the formation of a fibrous 3D network composed of aerogel fibers with internal nanopores (size 30–80 nm). Owing to the presence of micro/nano multiscale pore structure, aerogel fiber metafabric exhibits lightweight (6 mg cm^–3) and elastic characteristics while also demonstrating excellent thermal insulation performance (28.58 mW m^–1 K^–1) and sound absorption property (noise reduction coefficient of 0.57). Furthermore, the incorporation of hydrophobic agents and cross-linking agents endows superior mechanical property to the aerogel fiber metafabric (nearly 0% plastic deformation after 400 compression cycles) and hydrophobicity (water contact angle ∼134.3°). This work provides rich possibilities for the development of materials with both noise reduction and thermal insulation properties.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6262–6271 6262–6271"},"PeriodicalIF":4.4,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pressure-Induced Polar Phases of Poly(vinylidene fluoride) under Enhanced Dipole–Dipole Interactions by Introducing Poly(vinylidene fluoride-trifluoroethylene)","authors":"Jia-Yi Ren,&nbsp;Pan Meng,&nbsp;Zhanchun Chen,&nbsp;Jianguo Liang,&nbsp;Jun Lei,&nbsp;Gan-Ji Zhong* and Zhong-Ming Li,&nbsp;","doi":"10.1021/acsapm.5c0060210.1021/acsapm.5c00602","DOIUrl":"https://doi.org/10.1021/acsapm.5c00602https://doi.org/10.1021/acsapm.5c00602","url":null,"abstract":"<p >The strong piezoelectric activity and ferroelectric phenomena of polyvinylidene fluoride (PVDF) at high temperatures could be attributable to thick β-lamellae grown in the hexagonal phase under high pressure and high temperature, based on the temperature–pressure phase diagram. However, PVDF inevitably undergoes thermal degradation under such harsh crystallization conditions. To achieve high content polar phases via melt-crystallization under mild conditions, we incorporated a small amount (10 wt %) of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] into PVDF. This addition introduces enhanced dipole–dipole interactions, which, together with pressure, synergistically induce the formation of pure β/γ phases with different lamellar thicknesses during isothermal crystallization at 190 °C. At low pressure (≤100 MPa), PVDF predominantly crystallizes into thermodynamically stable α folded-chain crystals (α-FCCs). Meanwhile, the enhanced dipole–dipole interactions induce locally ordered trans (T) conformations, giving rise to a small fraction of β-FCCs. When the pressure exceeds 200 MPa, PVDF melt crystallizes through the metastable hexagonal phase (in which the interchain spacing increases), forming thick lamellae of β/γ phases (partially extended-chain crystals, termed β/γ-PECCs) as well as incompletely grown β/γ-FCCs. Simultaneously, higher pressures enhance the effectiveness of dipole–dipole interactions, further promoting the formation of β-FCCs. Remarkably, the 100% β/γ phase (comprising both FCCs and PECCs) is achieved at pressures above 300 MPa. Interestingly, the relative content of β phase with longer trans (T) sequences within the polar phases increases with pressure and reaches 86% at 500 MPa. This behavior contrasts with that of neat PVDF, where α phase content remains more than 17% even at a pressure beyond 300 MPa, highlighting the crucial role of enhanced dipole–dipole interactions.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6198–6208 6198–6208"},"PeriodicalIF":4.4,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient Photoinduced Charge Transfer between Linear Conjugated Polymer and Polymer Network for Light Harvesting Application","authors":"Neelam Gupta,&nbsp; Anamika,&nbsp;Arpita Maurya,&nbsp;Sobhan Hazra,&nbsp;Bhola Nath Pal and Biplab Kumar Kuila*,&nbsp;","doi":"10.1021/acsapm.4c0415110.1021/acsapm.4c04151","DOIUrl":"https://doi.org/10.1021/acsapm.4c04151https://doi.org/10.1021/acsapm.4c04151","url":null,"abstract":"<p >The development of light-harvesting systems based on a donor–acceptor heterostructure for efficient conversion of light to renewable energy is an emerging area of research. Here, we have demonstrated an efficient donor–acceptor heterostructure by hybridizing a high-band gap conjugated polymer network (CPN) with a linear conjugated polymer P3HT to boost charge separation and the light-harvesting property. Steady-state and time-resolved spectroscopic studies show efficient photoinduced electron transfer from P3HT to CPN and simultaneous hole transfer from CPN to P3HT due to the proper alignment of the band gap. The light-harvesting property of the hybrid materials was demonstrated by employing the hybrids as active layers for the fabrication of all polymer photodiodes which show photodetectivity from ultraviolet A to the entire visible region with high responsivity (0.85 A/W) and detectivity of 2.41 × 10¹¹ Jones at 620 nm and −5 V in a CPN/P3HT blend of 1:1. The repetitive on–off switching of a photodetector at zero bias clearly indicates its ability to operate in self-biased mode. This result will open up more possibilities for designing a light-harvesting system based on a high-band gap conjugated polymer network that can utilize UV and visible regions of solar light.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"5874–5883 5874–5883"},"PeriodicalIF":4.4,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanically Robust, Hydrophobic, and Recyclable Dynamic Aerogels via Organic–Inorganic Hybridization","authors":"Qirui Huang,&nbsp;Wei Hong,&nbsp;Haiyue Wang,&nbsp;Changyi You,&nbsp;Cai Liu,&nbsp;Lele Zhang,&nbsp;Li Yang*,&nbsp;Xuzhou Yan* and Ping Yu*,&nbsp;","doi":"10.1021/acsapm.5c0079510.1021/acsapm.5c00795","DOIUrl":"https://doi.org/10.1021/acsapm.5c00795https://doi.org/10.1021/acsapm.5c00795","url":null,"abstract":"<p >Polyimine aerogels, composed of covalent adaptive networks enriched with dynamic imine bonds, have shown remarkable recycling and reprogramming capabilities, marking a notable advancement in the field. However, these aerogels are challenged by inherent hydrophilicity and difficulties in achieving homogeneous nanostructures. Here, we synthesized a series of siloxane (Si)-based polyimine aerogels (Si-DPAs) with a pearl necklace-like microstructure using readily available commercial monomers and an ambient pressure synthesis method. The resultant lightweight Si-DPAs exhibit high flexibility, crimpability, and a high degree of compressibility (up to 80% strain) with a water contact angle of 136°. Moreover, Si-DPAs exhibit chemical degradability and diverse recyclability. They can be promptly employed to fabricate homogeneous films, dynamic aerogels, and recovered adhesives (with a lap shear strength of 4.0 MPa). Additionally, they demonstrate high-value applications in oil–water separation and thermal insulation. This work underscores the potential for the scalable production of polyimine aerogels and suggests avenues for broadening their application spectrum.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6301–6311 6301–6311"},"PeriodicalIF":4.4,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical Densification of Precipitated Biobased Polyamide 1012 Powders for Laser Additive Manufacturing","authors":"Yi Luo,&nbsp;Yang Wei,&nbsp;Zhengze Wang,&nbsp;Jiaming Qu,&nbsp;Guangxian Li and Yajiang Huang*,&nbsp;","doi":"10.1021/acsapm.5c0093710.1021/acsapm.5c00937","DOIUrl":"https://doi.org/10.1021/acsapm.5c00937https://doi.org/10.1021/acsapm.5c00937","url":null,"abstract":"<p >Nowadays, polymer powders for laser powder bed fusion (PBF-LB/P) additive manufacturing are primarily prepared through the dissolution–precipitation method. These powders usually possess a porous structure, which results in low powder bed densities and deteriorated part performance. Herein, a simple mechanical densification strategy was employed to optimize the microstructure, PBF-LB/P processing behavior, and part performance of precipitated biobased polyamide 1012 (PA1012) powders. It was found that roller milling densified the PA1012 particles, greatly reduced their specific surface area, and improved the high-temperature flowability of the powders. Parts based on milled powders exhibited largely improved appearance and mechanical properties. After 90 min of powder milling, the tensile modulus, strength, and elongation-at-break of the parts increased by 37%, 51%, and 150%, respectively. The substantial upgrade in part performance was attributed to the increase in the bulk density and powder bed density of milled powders, the reduction of internal void defects in the parts, and the suppression of degradation during processing. These positive effects were considered to outweigh the adverse impact of reduced laser absorptance caused by powder densification. Furthermore, the milled powder demonstrated a slower postcondensation rate and better recyclability due to the large reduction in the surface area of the powder. Therefore, mechanical densification represents a simple strategy to improve the PBF-LB/P processability and part mechanical performance of precipitated polymer powders.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6480–6492 6480–6492"},"PeriodicalIF":4.4,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparable Investigation on Enhancing Poly(butylene furandicarboxylate) Performance with Sustainable Citric Acid-Derived Monomers","authors":"Xiaodong Cai*,&nbsp;Yexin Yang,&nbsp;Di Wu,&nbsp;Danhua Jiao*,&nbsp;Yue Wang and Daohai Zhang,&nbsp;","doi":"10.1021/acsapm.5c0080410.1021/acsapm.5c00804","DOIUrl":"https://doi.org/10.1021/acsapm.5c00804https://doi.org/10.1021/acsapm.5c00804","url":null,"abstract":"<p >Structural modulation is essential for the advancement and broader application of high-performance biobased polyesters. In this study, two series of PBF-based copolyesters, PB_<i>x</i>O_<i>y</i>F and PBO_<i>x</i>F_<i>y</i>, were synthesized by reacting citric acid-derived octahydro-2,5-pentalene diol (OPD) and octahydro-2,5-pentalenediol bis(methyl carbonate) (OPBMC) with 2,5-dimethylfuran dicarboxylate and 1,4-butanediol. These copolyesters exhibited a random microstructure and viscosity average molecular weights (<i>M</i>_η) between 27.7 and 48.6 × 10³ g/mol. The characteristics of copolyesters were closely linked to their composition and the types of substituent units. As the citric acid unit content increases, the thermal stability of the copolyesters decreases but remains adequate up to 300 °C. Concurrently, their crystallinity diminishes, primarily as a result of the incorporation of OPBMC units. The glass transition temperature (<i>T</i>_g) of PBF significantly elevated with the addition of both OPD and OPBMC units, with OPD showing a stronger effect. The incorporation of rigid OPBMC units into PBF chains improved elongation at break, elastic modulus, and tensile strength, whereas an increase in OPD units resulted in increased brittleness and reduced mechanical properties. PBF-based copolymers incorporating citric acid units exhibit high <i>T</i>_g, tunable properties, and sustainability, making them promising candidates for eco-friendly packaging materials.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6337–6347 6337–6347"},"PeriodicalIF":4.4,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexible Piezoelectric Sensors Based on Electrostatically Spun PAN/K-BTO Composite Films for Human Health and Motion Detection","authors":"Zena Zhou,&nbsp;Yexiong Qi*,&nbsp;Tianyong Zheng,&nbsp;Ting-Ting Li and Jia-Horng Lin,&nbsp;","doi":"10.1021/acsapm.4c0409110.1021/acsapm.4c04091","DOIUrl":"https://doi.org/10.1021/acsapm.4c04091https://doi.org/10.1021/acsapm.4c04091","url":null,"abstract":"<p >Flexible piezoelectric sensors made of composite nanofiber materials have gained wide acceptance due to their suitability for wearable electronics, human health monitoring, and motion tracking. Enhancing the piezoelectric characteristics of these nanofibers holds significant promise for creating advanced, flexible, wearable sensors. In this article, KH550-modified barium titanate (K-BTO) was successfully dispersed uniformly in polyacrylonitrile (PAN) nanofibers to form a composite nanofiber membrane fabricated through electrostatic spinning techniques. The piezoelectric performance of the PAN/K-BTO composite membrane exhibited notable improvements compared to the pure PAN membrane, reaching an output voltage of up to 12.33 V and a current of 4.93 μA while exhibiting excellent sensitivity (1.63 V/N). In addition, potential applications of the PAN/K-BTO membrane as a flexible wearable sensor were systematically investigated. Sensors were systematically investigated for their potential applications, and their superior flexibility, sensitivity, and stability could be applied to monitor human movement. This research offers an innovative strategy for the application of electrostatically spun nanofibers in flexible smart sensors.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"5855–5864 5855–5864"},"PeriodicalIF":4.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gelatin-Based Electrospun Nanofibers Varied in Morphologies with Poly(ethylene imine) and Poly(2-ethyl-2-oxazoline): Allantoin-Modified for Antimicrobial Skin Compatibility","authors":"Burhan Beycan,&nbsp;Meryem Kalkan Erdoğan*,&nbsp;Sevcan Yangın,&nbsp;Begum Yurdakok-Dikmen,&nbsp;Merve Eylul Kiymaci and Meral Karakışla,&nbsp;","doi":"10.1021/acsapm.5c0045910.1021/acsapm.5c00459","DOIUrl":"https://doi.org/10.1021/acsapm.5c00459https://doi.org/10.1021/acsapm.5c00459","url":null,"abstract":"<p >This study focuses on developing and thoroughly assessing innovative, nontoxic, antibacterial, and skin-compatible electrospun nanofibrous mats-coated cotton composites. Materials were created by selectively incorporating different polyethylenimine polymers (PEI) and poly(2-ethyl-2-oxazoline)-based (P2Ox) polymers into a gelatin biopolymer matrix, which was then electrospun onto a cotton fabric substrate. Three distinct variants of PEI, such as branched PEI (BPEI), linear PEI (LPEI), and a P2Ox-based copolymer (P2Ox-co-PEI), were systematically integrated to fabricate hybrid, Janus, and core–shell electrospun structures, facilitating prominent change of their effects on the resultant material properties. Morphological investigation indicated that electrospun fibers in hybrid morphology have a smaller average diameter (200 nm) than core–shell counterparts (360 nm), although all produced mats demonstrated intrinsic hydrophilicity. The air permeability of the samples exhibited considerable variation between 41 and 1130 L/m²/s airflow rates. To enhance the biocompatibility and bioactivity of the nanofibrous mat surfaces, the materials were subjected to postprocessing by the chemical bonding of Allantoin (Alla). The antimicrobial effectiveness was also confirmed against <i>Staphylococcus aureus</i> (bacteria) and <i>Candida albicans</i> (Fungi) through the agar diffusion test, with the highest inhibitory impact at 18 and 20 mm, respectively. Notably, all electrospun mats, especially those modified with Alla, promoted L929 fibroblast proliferation, demonstrating superior biocompatibility. Finally, the biocompatibility of the Alla-modified samples was further investigated by a skin irritation test against human epidermal keratinocytes. The developed composites are biocompatible, nontoxic, and highly skin-compatible and have considerable potential for biomedical applications, such as wound dressings, drug delivery systems, and tissue engineering scaffolds.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6082–6099 6082–6099"},"PeriodicalIF":4.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Actuating Fiber Based on pH-Induced Extension and Contraction of Positively Charged Polymers","authors":"Kehui Xiang,&nbsp;Hanxin Jian,&nbsp;Zexin Liu,&nbsp;Yunpeng Yang,&nbsp;Hao Huang* and Shuguang Yang*,&nbsp;","doi":"10.1021/acsapm.5c0044310.1021/acsapm.5c00443","DOIUrl":"https://doi.org/10.1021/acsapm.5c00443https://doi.org/10.1021/acsapm.5c00443","url":null,"abstract":"<p >Actuating fibers are characterized by their flexibility and capacity for further knitting and weaving. They exhibit rapid stimuli response, satisfying diverse practical applications. The pH-actuating fibers are typically prepared from weak negative polyelectrolytes, contracting in acid and extending in alkali, while weak positive polyelectrolytes can be used to construct fibers with inverse pH-actuating behaviors. Herein, we fabricate an “alkaline contraction and acid extension” actuating fiber, utilizing the biobased weak positive polyelectrolyte chitosan (CHI). To address the issues of CHI fiber dissolution at low pH values and its inherent brittleness, covalent cross-linking and toughening are introduced to produce the actuating fiber. The fiber performs work in response to pH variations with a maximum output strain of 62%, work density of 20 kJ/m³, and modulus of 215 MPa, which are all higher than those of human skeletal muscle, and can be assembled into devices with other kinds of fiber actuators to perform complex motions, holding a promising role in soft robots and biomedicines.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 9","pages":"5565–5572 5565–5572"},"PeriodicalIF":4.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-Modified Thermoset Polyurethane Particles as Active Organic Additives in Electrolytes for High-Performance Flexible Zinc–Air Batteries","authors":"Mengqing Ren,&nbsp;Shengqiang Xiao,&nbsp;Bing Yu,&nbsp;Weilin Wu,&nbsp;Baoying Liu and Lili Wu*,&nbsp;","doi":"10.1021/acsapm.5c0010410.1021/acsapm.5c00104","DOIUrl":"https://doi.org/10.1021/acsapm.5c00104https://doi.org/10.1021/acsapm.5c00104","url":null,"abstract":"<p >The rapid accumulation of thermoset flexible polyurethane (TFPU) foams poses a serious challenge to the environment and human health, necessitating innovative recycling methods. Herein, an active organic additive for gel polymer electrolytes (GPEs) was designed and synthesized by grafting flexible polyurethane (PU) chains and depositing polydopamine (PDA) onto the surface of regenerated thermoset flexible PU particles (PUP), which significantly optimized the GPEs and achieved value-added recycling of thermoset flexible PU foams. Benefiting from the rigid–flexible bifunctional structure and abundant zinc-philic polar groups of the PDA@PU@PUP, the mechanical properties and ionic conductivity of the poly(vinyl alcohol) (PVA)-based GPEs were successfully balanced. The assembled flexible zinc–air batteries (FZABs) exhibited higher power density and longer room-temperature cycle life compared with pure PVA-based FZAB. Failure analysis showed that the introduction of the composite-modified PUP into the PVA matrix contributed to the redistribution of Zn²⁺ flux and the modulation of zinc ion solvation structure, which achieved uniform deposition of zinc and effective inhibition of side reactions. To the best of our knowledge, this is the first report on the introduction of active organic additives in PVA-based GPEs. Furthermore, this study provides an approach for sustainable recycling of thermoset flexible PU foams and an effective strategy for electrolyte optimization in advanced energy storage applications.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 10","pages":"6010–6020 6010–6020"},"PeriodicalIF":4.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}