ACS Applied Polymer Materials最新文献

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Mechanically Robust, Time-Programmable, Janus Hydrogel Actuator, and the Insights into Its Driving Principles
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-11 DOI: 10.1021/acsapm.4c0388810.1021/acsapm.4c03888
Jingliu Wang, Yue Wu, Kewei Zhao, Gaozheng Liu, Rongyan Wang, Yanyan Zhao, Yong Liu, Yaqing Ge*, Xubao Jiang* and Xiangling Gu*, 
{"title":"Mechanically Robust, Time-Programmable, Janus Hydrogel Actuator, and the Insights into Its Driving Principles","authors":"Jingliu Wang,&nbsp;Yue Wu,&nbsp;Kewei Zhao,&nbsp;Gaozheng Liu,&nbsp;Rongyan Wang,&nbsp;Yanyan Zhao,&nbsp;Yong Liu,&nbsp;Yaqing Ge*,&nbsp;Xubao Jiang* and Xiangling Gu*,&nbsp;","doi":"10.1021/acsapm.4c0388810.1021/acsapm.4c03888","DOIUrl":"https://doi.org/10.1021/acsapm.4c03888https://doi.org/10.1021/acsapm.4c03888","url":null,"abstract":"<p >Poly(<i>N</i>-isopropylacrylamide) (PNIPAM)-based hydrogels are widely used in the preparation of Janus actuators due to their remarkable temperature-responsive properties. However, preparing PNIPAM-based hydrogel actuators with excellent mechanical properties, mass transfer ability, and programmable deformation, as well as gaining a profound and systematic understanding of their driving mechanisms, remains a challenge to date. To address these challenges, an efficient PNIPAM-hydroxypropylmethyl cellulose/polyacrylamide-Graphene oxide (PNIPAM-HPMC/PAM-GO) Janus hydrogel actuator with strong interfacial stability was constructed based on the self-generation method; PNIPAM-HPMC was used as the active layer, and PAM-GO was used as the passive layer. The introduction of HPMC makes the active layer have excellent tensile strength (7.55–28.3 kPa) and mass transfer ability (39.07–73.03%), thereby improving the deformation ability of the actuator (239–360°). It can still achieve a 360° deformation after being actuated repeatedly 5 times. The deformation dynamics of the Janus hydrogel actuator under thermal response conditions were quantitatively analyzed by real-time tracking of the response behavior, and the important role of mechanical moduli in the deformation process of the Janus hydrogel actuator was revealed for the first time. Therein, the effect of the elastic modulus difference on the deformation of the actuator is 48 times that of the compression modulus difference. Finally, the Janus hydrogel actuator with high interface stability, mechanical robustness, time-programmable, and double-layer integration prepared in this work shows potential application in the fields of bionics, intelligent switches, and display systems.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3670–3685 3670–3685"},"PeriodicalIF":4.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713916","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}
引用次数: 0
High Refractive Index and Excellent Transparent Polyarylates Containing Pendant Groups and Thiophene
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-11 DOI: 10.1021/acsapm.5c0013910.1021/acsapm.5c00139
Jiaxin Liu, Zihao Wu, Jian Wang, Zhipeng Wang, Yunlong Sun, Qinqin Zhang, Heran Nie*, Ruiyang Zhao* and Zhengwei Guo, 
{"title":"High Refractive Index and Excellent Transparent Polyarylates Containing Pendant Groups and Thiophene","authors":"Jiaxin Liu,&nbsp;Zihao Wu,&nbsp;Jian Wang,&nbsp;Zhipeng Wang,&nbsp;Yunlong Sun,&nbsp;Qinqin Zhang,&nbsp;Heran Nie*,&nbsp;Ruiyang Zhao* and Zhengwei Guo,&nbsp;","doi":"10.1021/acsapm.5c0013910.1021/acsapm.5c00139","DOIUrl":"https://doi.org/10.1021/acsapm.5c00139https://doi.org/10.1021/acsapm.5c00139","url":null,"abstract":"<p >Polymers that exhibit both a high refractive index and superior transmittance are critically sought for optoelectronic device applications. Polyarylates are considered one of the most promising classes of optical materials for such purposes. Nevertheless, the demand for polyarylates with enhanced refractive indices and elevated light transmission levels is growing. This study introduced a series of innovative polyarylates synthesized via nucleophilic reactions involving bisphenol with a pendant cardo structure and acid chloride derived from a biobased diacid (2,5-thiophenedicarboxylic acid). These polyarylates demonstrated a relatively high refractive index (<i>n</i><sub>d</sub> = 1.695), excellent light transmission (<i>T</i><sub>400 nm</sub> &gt; 86% and <i>T</i><sub>avg</sub> &gt; 92%), and ideal low dispersion (Abbe number = 23). The elevated refractive index can be attributed to the high molar polarizability of thiophene, whereas the exceptional transmittance is credited to the bulky cardo-ring structure that minimizes interactions between polymer chains. Furthermore, these polyarylates displayed excellent thermal properties and solubility, enhancing their processability. This research offers a viable strategy for developing high-refractive-index polymers with excellent transmittance for optical applications.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3904–3912 3904–3912"},"PeriodicalIF":4.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713903","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}
引用次数: 0
3D Porous Thermoplastic Polyurethane/Carbon Nanotube@Silver Nanoparticle Foam with Multidimensional Conductive Networks for Flexible Electronic Sensing
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-11 DOI: 10.1021/acsapm.4c0356310.1021/acsapm.4c03563
Feifan Yi, Yu Guo, Shulei Wu, Yiwei Zhu, Zhixiang Cui and An Huang*, 
{"title":"3D Porous Thermoplastic Polyurethane/Carbon Nanotube@Silver Nanoparticle Foam with Multidimensional Conductive Networks for Flexible Electronic Sensing","authors":"Feifan Yi,&nbsp;Yu Guo,&nbsp;Shulei Wu,&nbsp;Yiwei Zhu,&nbsp;Zhixiang Cui and An Huang*,&nbsp;","doi":"10.1021/acsapm.4c0356310.1021/acsapm.4c03563","DOIUrl":"https://doi.org/10.1021/acsapm.4c03563https://doi.org/10.1021/acsapm.4c03563","url":null,"abstract":"<p >Porous structures are a common design in the preparation of compressive, flexible strain sensors. It can endow the flexibility and permeability of flexible sensors while effectively increasing the specific surface area and reducing its mass. However, efficient preparation of porous strain sensors with accurate measurement results, high stability, wide operating range, and excellent durability remains challenging. Herein, the salt template method combined with vacuum casting and freeze-drying processes were used to prepare a pristine three-dimensional porous foam model, and a porous lightweight thermoplastic polyurethane (TPU)/carbon nanotube (CNT)@silver nanoparticles (AgNPs) (Vc-TPU/CNT@AgNPs) strain sensor with high compressibility was prepared by impregnating CNTs and growing AgNPs in situ. Thanks to the reduction of AgNPs inside the foam as an interlayer contact point, the resulting microstructure effectively changes the force on the sensor during compression. Meanwhile, the lap of AgNPs as a conductive filler between the layers effectively reduces the overall resistance during foam compression, resulting in a significant increase in sensor sensitivity (gauge factor = 1.40) and giving the sensor a superior linear fit (<i>R</i><sup>2</sup> = 0.99875), a wide sensing range (5–70% strain, 88 pa ∼35 kPa pressure), and a rapid response and recovery time (20 ms). The in situ growth of AgNPs and π–π bonding interaction between TPU and CNT then provide excellent durability (500 cycles, 50% strain) for the Vc-TPU/CNT@AgNPs strain sensor. Furthermore, the strain sensors can be successfully used to monitor human motion, ranging from small vibrations in tendons and ears to large strain movements, such as finger flexion and foot stamping. This work provides a proven method for the preparation of porous flexible strain sensors with excellent linearity, good sensitivity, lightness and breathability, and durability, which have promising applications in the field of wearable electronics.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3564–3575 3564–3575"},"PeriodicalIF":4.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713914","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}
引用次数: 0
Se–Se Bonds Involved Polyurethane-Based Binders for Enhanced Redox Kinetics in Lithium-Ion Batteries
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-11 DOI: 10.1021/acsapm.5c0040110.1021/acsapm.5c00401
Xinyang Liu, Meng Zhang, Xingzheng Peng, Mengke Li, Xuewu Gao, Yi Feng*, Shengli Chen, Xiongwei Qu and Xiaojie Zhang*, 
{"title":"Se–Se Bonds Involved Polyurethane-Based Binders for Enhanced Redox Kinetics in Lithium-Ion Batteries","authors":"Xinyang Liu,&nbsp;Meng Zhang,&nbsp;Xingzheng Peng,&nbsp;Mengke Li,&nbsp;Xuewu Gao,&nbsp;Yi Feng*,&nbsp;Shengli Chen,&nbsp;Xiongwei Qu and Xiaojie Zhang*,&nbsp;","doi":"10.1021/acsapm.5c0040110.1021/acsapm.5c00401","DOIUrl":"https://doi.org/10.1021/acsapm.5c00401https://doi.org/10.1021/acsapm.5c00401","url":null,"abstract":"<p >Although the proportion of binder in batteries is tiny, it plays a significant role in maintaining the integrity of the electrode structure and ensuring the cycling stability of batteries. This study, based on the concept of “redox mediators (RMs),” involved the design and synthesis of a series of Se–Se bonds containing polyurethanes, which have been used as binders for lithium iron phosphate cathodes in lithium-ion batteries (LIBs). Se–Se contained binders as RMs not only accelerate the redox kinetics of the battery but also improve the discharge specific capacity and lithium-ion (Li<sup>+</sup>) transport rate of the battery. The synergistic movement of the hard and soft segments in the polyurethane endowed the binders with high elasticity, and the hydrogen bonding within the binders further enhanced the mechanical properties and reduced the volume change of the electrode during charging and discharging, thus improving the electrochemical cycling performance of the battery. After 500 cycles at 1 C, LIBs with PUPEG-400 as the binders boasted the highest initial discharge specific capacity of 139.77 mA h g<sup>–1</sup>, while those with PUPEG-2000 as the binders exhibited the highest capacity retention of 72.37%.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"4019–4028 4019–4028"},"PeriodicalIF":4.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713904","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}
引用次数: 0
Dimethyl Sulfoxide-Induced Transparent Nitrocellulose Membrane for the Lateral Flow Assay
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-10 DOI: 10.1021/acsapm.4c0396610.1021/acsapm.4c03966
Weimin Xu, Xuanxu Nan, Li Yang* and Yue Cui*, 
{"title":"Dimethyl Sulfoxide-Induced Transparent Nitrocellulose Membrane for the Lateral Flow Assay","authors":"Weimin Xu,&nbsp;Xuanxu Nan,&nbsp;Li Yang* and Yue Cui*,&nbsp;","doi":"10.1021/acsapm.4c0396610.1021/acsapm.4c03966","DOIUrl":"https://doi.org/10.1021/acsapm.4c03966https://doi.org/10.1021/acsapm.4c03966","url":null,"abstract":"<p >Colorimetric lateral flow assays (LFAs) are widely used for detecting analytes through color changes displayed by conjugates on a test strip, typically made of materials such as nitrocellulose (NC) membranes. However, a significant number of conjugate nanoparticles become trapped within the membrane’s porous structure, preventing the full display of color information. Here, gelation of a porous NC membrane is achieved by introducing dimethyl sulfoxide (DMSO) into an LFA strip, resulting in structural changes and high transparency in the NC membrane, exposing red-colored Au nanoparticles within a transparent and portable DMSO/NC membrane. Under optimized conditions (16 μL of 50 vol % DMSO in water and heating the NC strip at 80 °C for 8 min), the membrane becomes highly transparent, achieving 77.42% transmittance while maintaining its capability to effectively perform LFAs for cardiac troponin I (cTnI) in both buffer solutions and clinical samples. We anticipate that this method holds promise for advancing fundamental studies of lateral flow strip materials and has potential applications in healthcare and environmental monitoring.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3708–3717 3708–3717"},"PeriodicalIF":4.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713841","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}
引用次数: 0
Competitive (Spatiotemporal) Techniques to Fabricate (Ultra)stiff Polymer Hydrogels and Their Potential Applications
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-10 DOI: 10.1021/acsapm.4c0419910.1021/acsapm.4c04199
Agniva Dutta*, Sangita Pandit, Prachishree Panda and Rajat Kumar Das*, 
{"title":"Competitive (Spatiotemporal) Techniques to Fabricate (Ultra)stiff Polymer Hydrogels and Their Potential Applications","authors":"Agniva Dutta*,&nbsp;Sangita Pandit,&nbsp;Prachishree Panda and Rajat Kumar Das*,&nbsp;","doi":"10.1021/acsapm.4c0419910.1021/acsapm.4c04199","DOIUrl":"https://doi.org/10.1021/acsapm.4c04199https://doi.org/10.1021/acsapm.4c04199","url":null,"abstract":"<p >Hydrogels are water-swollen, three-dimensionally cross-linked polymeric networks widely recognized for their biological compatibility and immense potential across a broad range of applications. However, their inherently poor mechanical properties pose a significant challenge to their widespread practical use. Although numerous strategies have improved the strength and toughness of hydrogels, achieving high stiffness (in the ≥10 MPa range) in addition to these properties remains challenging. The general approach of increasing cross-linking density to enhance stiffness often results in reduced stretchability and toughness, leading to brittle materials. Designing hydrogels that achieve both high stiffness and toughness is fundamentally challenging, as these parameters are often interdependent and conflicting yet essential for practical applications. Recent advancements have enabled the development of ultrastiff hydrogels with elastic modulus exceeding 10 MPa. Remarkably, many of these hydrogels are viscoelastic in nature and also exhibit significant energy dissipation, thereby preserving the toughness. Unlike elastic hydrogels, which rely on spatial design (governed by the polymer architecture), viscoelastic hydrogels also incorporate temporal structures, where cross-linking kinetics (lifetime) significantly affects their mechanical properties. The respective contributions from the spatial and temporal component toward hydrogel performance depends on the hydrogel fabrication strategy. For instance, in semicrystalline hydrogels featuring long chain alkyl domains, the strength of physical cross-links primarily contributes to hydrogel stiffness, whereas enhancing polymer backbone rigidity by incorporating α-methyl groups may increase hydrogel stiffness even when weak cross-links are employed. Some of these aspects, including examples of synergistic combination of different hydrogel network stiffening strategies, are elaborated in this review. This review highlights breakthroughs, examining the fabrication processes, mechanism behind enhanced stiffness, and the trade-offs addressed in these systems. Finally, we highlight promising applications (in the emergent fields of flexible electronics, soft robotics, and biomedical implants) that underscore the immense potential of these advanced hydrogels.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3466–3497 3466–3497"},"PeriodicalIF":4.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713835","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}
引用次数: 0
Recent Advances in Healable Carbon-Fiber-Reinforced Epoxy Resin Composite Laminate: Preparation and Properties
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-10 DOI: 10.1021/acsapm.4c0346710.1021/acsapm.4c03467
Hao Xu, Wen-Di Chen, Yu-Peng Lou, Shu-Quan Xu, Tao Bai, Wen-Jun Dai, Rui-Xuan Xiang, Shou-Wei Tong and Hui Zhao*, 
{"title":"Recent Advances in Healable Carbon-Fiber-Reinforced Epoxy Resin Composite Laminate: Preparation and Properties","authors":"Hao Xu,&nbsp;Wen-Di Chen,&nbsp;Yu-Peng Lou,&nbsp;Shu-Quan Xu,&nbsp;Tao Bai,&nbsp;Wen-Jun Dai,&nbsp;Rui-Xuan Xiang,&nbsp;Shou-Wei Tong and Hui Zhao*,&nbsp;","doi":"10.1021/acsapm.4c0346710.1021/acsapm.4c03467","DOIUrl":"https://doi.org/10.1021/acsapm.4c03467https://doi.org/10.1021/acsapm.4c03467","url":null,"abstract":"<p >The attractive properties of carbon-fiber-reinforced epoxy resin composite laminate material (CF/EP), such as design flexibility and high specific strength, are mainly utilized in the aerospace industry for applications including aeroplanes, wings, satellite construction, and offshore wind turbines. In recent years, there has been a proliferation of motivational reports concerning the advancement of self-healing technology. However, there is a noticeable dearth of comprehensive reviews that consolidate these cutting-edge developments. As such, this review endeavors to bridge this gap by examining recent preparation methods for CF/EP rooted in the principles of the self-healing theory. Several methods are proposed in the present review for enhancing the healing performance of CF/EP: (1) incorporating reversible bonds and core–shell materials into existing structures to construct a healing resin matrix; (2) developing a healable interface between the carbon fiber and the matrix to prevent inevitable damage caused by the diffusion of microcracks at the interface; (3) creating a healable CF/EP to ensure the healing of microcracks at the CF/EP interlayers by adding healing agents (HAs) such as microcapsules, thermoplastics, hollow fiber, and microvascular; (4) synergistically accomplishing the construction of a hybrid healing system via using two approaches mentioned above. Furthermore, this review also discusses the various properties of healable CF/EP in mechanics and healing efficiency.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3420–3441 3420–3441"},"PeriodicalIF":4.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713895","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}
引用次数: 0
Eco-Friendly and Efficient Semi-Natural Encapsulants Prepared via In Situ Cross-Linking within the Porous Carbon Electrodes of Carbon-Based Perovskite Solar Cells
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-10 DOI: 10.1021/acsapm.4c0390010.1021/acsapm.4c03900
Ratchada Wongkanya, Saranrat Asamo, Whijitra Suvandee, Decha Dechtrirat, Pongsit Vijitphan, Arthit Makarasen, Nattaporn Chattham, Winyoo Sangthong, Supa Hannongbua and Pongthep Prajongtat*, 
{"title":"Eco-Friendly and Efficient Semi-Natural Encapsulants Prepared via In Situ Cross-Linking within the Porous Carbon Electrodes of Carbon-Based Perovskite Solar Cells","authors":"Ratchada Wongkanya,&nbsp;Saranrat Asamo,&nbsp;Whijitra Suvandee,&nbsp;Decha Dechtrirat,&nbsp;Pongsit Vijitphan,&nbsp;Arthit Makarasen,&nbsp;Nattaporn Chattham,&nbsp;Winyoo Sangthong,&nbsp;Supa Hannongbua and Pongthep Prajongtat*,&nbsp;","doi":"10.1021/acsapm.4c0390010.1021/acsapm.4c03900","DOIUrl":"https://doi.org/10.1021/acsapm.4c03900https://doi.org/10.1021/acsapm.4c03900","url":null,"abstract":"<p >The penetration of moisture and oxygen through the porous carbon electrodes of carbon-based perovskite solar cells (CPSCs) accelerates device degradation, thereby reducing their operational lifespan. To mitigate this issue, polymer encapsulation has emerged as an effective strategy to minimize moisture and oxygen penetration. However, commonly used epoxy-based encapsulants suffer from significant drawbacks, including inadequate toughness and the release of toxic gases during combustion. In this work, we developed an encapsulation process to incorporate eco-friendly and efficient encapsulants derived from cross-linked seminatural polymers into CPSCs. Optically transparent films of the encapsulants were fabricated by infiltrating precursor solutions containing hydroxy-terminated isoprene oligomers (HIO) and 1,6-diazidohexane (DAH) into the CPSC electrodes. The precursors underwent in situ cross-linking via thermal treatment, forming a durable HIO–DAH network both within and on the surface of the electrodes. By optimizing the mole ratios of the precursors, the resulting HIO–DAH film exhibited excellent thermal stability, a smooth surface, and exceptional water resistance. Consequently, CPSCs encapsulated with the HIO–DAH film demonstrated significantly enhanced stability under dark (70% relative humidity and 30 °C) and illuminated (70% relative humidity, 60 °C heating, and prolonged light exposure exceeding 900 h) conditions, compared to unencapsulated CPSCs and those encapsulated with commercial epoxy films. Moreover, the thermal degradation of the HIO–DAH film in an oxygen atmosphere at temperatures between 200 and 600 °C resulted in considerably lower emissions of toxic gases, including carbon monoxide (CO) and carbon dioxide (CO<sub>2</sub>), compared to the epoxy films.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3647–3656 3647–3656"},"PeriodicalIF":4.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c03900","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Polyimide Aerogels Cross-Linked Using Amino-phenyl Polyhedral Oligomeric Silsesquioxanes
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-10 DOI: 10.1021/acsapm.4c0354610.1021/acsapm.4c03546
Keshan Zhang, Donglin Zhang, Zeqi Zhang, Yiwei Wu, Xue Bi and Rongjie Yang*, 
{"title":"Polyimide Aerogels Cross-Linked Using Amino-phenyl Polyhedral Oligomeric Silsesquioxanes","authors":"Keshan Zhang,&nbsp;Donglin Zhang,&nbsp;Zeqi Zhang,&nbsp;Yiwei Wu,&nbsp;Xue Bi and Rongjie Yang*,&nbsp;","doi":"10.1021/acsapm.4c0354610.1021/acsapm.4c03546","DOIUrl":"https://doi.org/10.1021/acsapm.4c03546https://doi.org/10.1021/acsapm.4c03546","url":null,"abstract":"<p >Cross-linking agents play a pivotal role in defining the chemical properties of the polyimide (PI) backbone. Even subtle modifications to the backbone chemistry can lead to profound changes in the structure and performance of PI materials. Therefore, selecting cross-linking agents with appropriate structures and properties is critical for tailoring PI materials to meet specific performance requirements. Amino-phenyl polyhedral oligomeric silsesquioxane (POSS) has shown great potential as an effective cross-linking agent for enhancing the performance of PI aerogels. However, systematic investigations into the effects of amino-phenyl POSS cross-linking agents with varying structures and amino group densities on the performance of PI aerogels remain limited. In this study, we synthesized PI aerogels using five different amino-phenyl POSS cross-linking agents. Due to their rigid molecular structures and hybrid organic–inorganic characteristics, the amino-phenyl POSS cross-linked PI aerogels exhibited superior mechanical and dielectric properties compared to PI-TAB aerogels, including a higher compressive modulus (25.17 MPa), lower dielectric constant (1.144 at 10 MHz), and lower dielectric loss (0.0085 at 10 MHz), thereby achieving excellent overall performance. Furthermore, we examined the relationship between the structures and amino group densities of POSS and the resulting properties of PI aerogels. We observed that the size of the POSS cage/ring had minimal influence on the aerogel properties when each phenyl group was connected to a single amino group, as the high cross-linking density mitigated the effect of the POSS cage or ring size. By contrast, larger POSS cages/rings improved the aerogel performance when the amino density was held constant, while lower amino density enhanced performance when the size of the POSS cages/rings was fixed. This study provides valuable insights into the structural–functional design of PI aerogels.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"3797–3805 3797–3805"},"PeriodicalIF":4.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713897","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}
引用次数: 0
Correction to “Microengineered Emulsion-to-Powder Technology for the High-Fidelity Preservation of Molecular, Colloidal, and Bulk Properties of Hydrogel Suspensions”
IF 4.4 2区 化学
ACS Applied Polymer Materials Pub Date : 2025-03-08 DOI: 10.1021/acsapm.5c0066610.1021/acsapm.5c00666
Amir Sheikhi*, Donatella Di Lisa, Joseph de Rutte, Outman Akouissi, Dino Di Carlo* and Ali Khademhosseini*, 
{"title":"Correction to “Microengineered Emulsion-to-Powder Technology for the High-Fidelity Preservation of Molecular, Colloidal, and Bulk Properties of Hydrogel Suspensions”","authors":"Amir Sheikhi*,&nbsp;Donatella Di Lisa,&nbsp;Joseph de Rutte,&nbsp;Outman Akouissi,&nbsp;Dino Di Carlo* and Ali Khademhosseini*,&nbsp;","doi":"10.1021/acsapm.5c0066610.1021/acsapm.5c00666","DOIUrl":"https://doi.org/10.1021/acsapm.5c00666https://doi.org/10.1021/acsapm.5c00666","url":null,"abstract":"","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"7 6","pages":"4050 4050"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713844","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}
引用次数: 0
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