ACS Applied Polymer Materials最新文献

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Substituting Small Molecules by Polymers in Light Harvesting Capacitor: Effect on the Coherency of Photogenerated Dipoles 在光收集电容器中用聚合物替代小分子:对光生偶极子一致性的影响
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-10 DOI: 10.1021/acsapm.4c00751
Joaquim B. de Lima Filho, Florian Günther, Bruno Bassi Millan Torres, Paulo B. Miranda
{"title":"Substituting Small Molecules by Polymers in Light Harvesting Capacitor: Effect on the Coherency of Photogenerated Dipoles","authors":"Joaquim B. de Lima Filho, Florian Günther, Bruno Bassi Millan Torres, Paulo B. Miranda","doi":"10.1021/acsapm.4c00751","DOIUrl":"https://doi.org/10.1021/acsapm.4c00751","url":null,"abstract":"We compare optical and electric properties of multilayered light harvesting capacitors (LHCs) fabricated by layer-by-layer (LbL) polyelectrolyte self-assembly. Electron donor nanolayers were coated from a solution of poly(3-potassium-6-hexanoate thiophene) (P3KHT) while electron acceptor layers were coated from a solution of either a small molecule cationic derivative of <i>N</i>,<i>N</i>′-bis(6-aminohexil)-3,4,9,10-perilenediimide (PDI-6N) or a macromolecule obtained from a polycation of perylenediimide-functionalized polyethileneimine (PDI-PEI). Internal photogeneration of charges was probed via time-resolved transient absorption and continuous-wave photoinduced absorption spectroscopy, while coherent nanodipoles were probed via transient photocurrent measurements, fitted by an analytical equation developed under photophysical principles of LHCs. Data show that charge lifetimes do not depend on external parameters, especially load resistance and pump modulation frequency, while dipole lifetimes depend on load resistance. In addition, it is shown that LHCs based on polymeric acceptor PDI-PEI are more efficient than those based on small molecule acceptor PDI-6N, probably because the smaller acceptor interpenetrates more into the P3KHT polymeric chains, resulting in weaker coherent contribution of photogenerated dipoles to the macroscopic dielectric polarization.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586006","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
Synthesis of Conjugated Polymers: Comparing the Indophenine Reaction with Traditional Methods 共轭聚合物的合成:靛红反应与传统方法的比较
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-10 DOI: 10.1021/acsapm.4c01169
Jônatas Faleiro Berbigier, Timothy L. Kelly
{"title":"Synthesis of Conjugated Polymers: Comparing the Indophenine Reaction with Traditional Methods","authors":"Jônatas Faleiro Berbigier, Timothy L. Kelly","doi":"10.1021/acsapm.4c01169","DOIUrl":"https://doi.org/10.1021/acsapm.4c01169","url":null,"abstract":"Conjugated polymers are an important class of materials whose development underpins many recent advances in organic electronics. Traditionally, these polymers have been synthesized by transition-metal-catalyzed cross-couplings using organometallic reagents (e.g., Stille couplings). Although direct heteroarylation polymerization (DHAP) dispenses with the organometallic intermediates, DHAP is still a metal-catalyzed coupling, requiring both catalyst optimization and purification to remove trace metal contaminants. In contrast, a recent report from our group demonstrated that the indophenine reaction can be used as a metal-free method to prepare conjugated polymers; however, from this initial proof-of-concept study, it was not clear how it compared to other methods of conjugated polymer synthesis. Therefore, in this report, we synthesized the same polymer using three distinctly different approaches: Stille coupling, DHAP, and the indophenine reaction. This allows us to directly compare the three methodologies; we find that each offers distinct trade-offs in terms of atom economy, defects, and molecular weight.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586008","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
Hydrogen Bonding-Mediated Supramolecular Blend for the Fabrication of Amplitude-Controllable Surface Relief Gratings 氢键介导的超分子混合物用于制造振幅可控的表面浮雕光栅
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-10 DOI: 10.1021/acsapm.4c01123
Meng-Ting Hung, Cheng-Wei Huang
{"title":"Hydrogen Bonding-Mediated Supramolecular Blend for the Fabrication of Amplitude-Controllable Surface Relief Gratings","authors":"Meng-Ting Hung, Cheng-Wei Huang","doi":"10.1021/acsapm.4c01123","DOIUrl":"https://doi.org/10.1021/acsapm.4c01123","url":null,"abstract":"The exploration of polymer materials bearing hydrogen bonding motifs in side chains has uncovered promising avenues for developing efficient surface relief grating (SRG) with heightened stability. To broaden the applicability of these materials across diverse SRG production needs, a versatile and adaptable design methodology is imperative. This study attempts to elucidate supramolecular materials’ potential by presenting a series of complexes comprising “photoinert” polymer and “photoactive” small molecules. We have successfully synthesized polymethacrylate derivatives featuring thymine side chains P(iBMA-<i>co</i>-MA-T) and azobenzene derivatives with melamine (AZO-N-M) through meticulous investigation. Our findings reveal that incorporating multipoint hydrogen bonding supramolecular functional groups onto the polymer side chains significantly enhances thermal properties, as evidenced by notable increases in thermal degradation temperatures and <i>T</i><sub>g</sub> values. Furthermore, incorporating P(iBMA-<i>co</i>-MA-T) with AZO-N-M through noncovalent interactions effectively impedes AZO-N-M’s crystallization, further enhancing the material’s characteristics. Differential scanning calorimetry analysis underscores minor phase changes upon blending at different ratios, facilitating the identification of optimal homogeneous ratios for supramolecular materials. By fine-tuning the blending ratio, a hybrid system capable of forming SRGs with tunable amplitudes has been achieved, offering practical solutions to meet diverse SRG amplitude requirements while reducing the reliance on dyes. This study not only addresses current gaps in the field but also underscores the potential of mixed materials linked by multipoint hydrogen bonding for SRG fabrication, paving the way for further exploration and advancements in supramolecular materials.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586007","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
Quantifying the Crystalline Polymorphism in PVDF: Comparative Criteria Using DSC, WAXS, FT-IR, and Raman Spectroscopy 量化聚偏二氟乙烯的晶体多态性:使用 DSC、WAXS、FT-IR 和拉曼光谱的比较标准
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-10 DOI: 10.1021/acsapm.4c01157
Sreelakshmi Moozhiyil Purushothaman, Maïté Fernandes Tronco, Marc Ponçot, Chitralekha C.S, Nathanael Guigo, Marc Malfois, Nandakumar Kalarikkal, Sabu Thomas, Isabelle Royaud, Didier Rouxel
{"title":"Quantifying the Crystalline Polymorphism in PVDF: Comparative Criteria Using DSC, WAXS, FT-IR, and Raman Spectroscopy","authors":"Sreelakshmi Moozhiyil Purushothaman, Maïté Fernandes Tronco, Marc Ponçot, Chitralekha C.S, Nathanael Guigo, Marc Malfois, Nandakumar Kalarikkal, Sabu Thomas, Isabelle Royaud, Didier Rouxel","doi":"10.1021/acsapm.4c01157","DOIUrl":"https://doi.org/10.1021/acsapm.4c01157","url":null,"abstract":"Polyvinylidene fluoride (PVDF) is a semicrystalline polymer widely used in various fields, from energy harvesting to medicine. Thanks to its crystalline polymorphism, it possesses distinct properties depending on its microstructure developed during manufacturing. There is thus significant interest in quantifying the individual fractions of each α, β, and γ polymorph. This study establishes criteria for their comprehensive analysis by studying PVDF in its molten state and extending the results to analyze samples with significant variations in crystalline phases. Differential scanning calorimetry, wide-angle X-ray scattering, Fourier transform-infrared spectroscopy, and Raman spectroscopy were employed for a thorough analysis of the samples. A robust methodology involving curve deconvolution quantifies the total crystallinity ratio and fractions of the crystalline phases. This approach elucidates the amorphous contribution and considers all crystalline bands in a chosen representative region, details that have not yet been well highlighted in the literature. Comparison between the techniques ensures the reliability of the method to quantify PVDF’s crystalline polymorphs.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586009","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
An Organic–Inorganic Hybrid Hydrogel Based on Chitosan for Effective Hemostasis 一种基于壳聚糖的有机-无机混合水凝胶可用于有效止血
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-09 DOI: 10.1021/acsapm.4c01278
Xiaoyan Song, Siyuan Yu, Junxia Deng, Jia Liu, Jinfeng Xing
{"title":"An Organic–Inorganic Hybrid Hydrogel Based on Chitosan for Effective Hemostasis","authors":"Xiaoyan Song, Siyuan Yu, Junxia Deng, Jia Liu, Jinfeng Xing","doi":"10.1021/acsapm.4c01278","DOIUrl":"https://doi.org/10.1021/acsapm.4c01278","url":null,"abstract":"The ideal hemostatic dressing should not only achieve the effect of hemostasis but also maintain a suitable moist environment and sufficient physical and mechanical strength and avoid secondary injury to the wound. Here, a stretchable, adhesive, and antibacterial hydrogel (SAQH) for wound hemostasis is facilely prepared by photopolymerization under green LED irradiation, in which acrylamide (AAM) and methacryloylethylsulfobetaine (SBMA) are used as the skeleton and quaternized carboxymethyl chitosan (QCCS) is used as the procoagulant component. The introduction of the macromolecular cross-linking agent methacryloyl hyaluronic acid (HA-GMA) enhances biocompatibility and avoids the addition of small molecular toxic cross-linking agents. The introduction of inorganic nanoparticle hydroxyapatite (HAP) into the hydrogel system not only improves the mechanical properties of the polymer network but also releases calcium ions from HAP to achieve a good coagulation-promoting effect. SAQH hydrogels have excellent mechanical properties (the maximum stress can reach 237 kPa), good adaptability, sufficient tissue adhesion, and effective antibacterial properties. In the mouse liver injury model, hydrogels can adhere to the bleeding site to reduce blood loss, and they will not cause secondary bleeding when removed. This research develops a potential hemostatic hydrogel with broad applicable prospects.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586249","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
Broad-Spectrum Antimicrobial Polymer-Coated Fabrics via Commodity Polystyrene Upcycling 通过商品聚苯乙烯的升级再循环制造广谱抗菌聚合物涂层织物
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-08 DOI: 10.1021/acsapm.4c01060
Algin Oh Biying, Michelle Jui Hsien Ong, Wenguang Zhao, Ning Li, He-Kuan Luo, Julian M. W. Chan
{"title":"Broad-Spectrum Antimicrobial Polymer-Coated Fabrics via Commodity Polystyrene Upcycling","authors":"Algin Oh Biying, Michelle Jui Hsien Ong, Wenguang Zhao, Ning Li, He-Kuan Luo, Julian M. W. Chan","doi":"10.1021/acsapm.4c01060","DOIUrl":"https://doi.org/10.1021/acsapm.4c01060","url":null,"abstract":"Polystyrene derived from styrofoam food containers was transformed into antimicrobial polymer coatings on cotton fabric via a facile chemical upcycling process. In a two-step sequence, commodity polystyrene was first subjected to initial halomethylation where the pendent phenyl rings of the polymer were functionalized quantitatively with CH<sub>2</sub>Cl moieties. Next, in our key fabrication step, <i>in situ</i> quaternization and cross-linking of the polymer with a rigid bifunctional tertiary amine were readily achieved under ambient conditions using a drop-and-dry approach on cotton to afford a polycation-coated fabric. Scanning electron microscopy analysis revealed cotton fibers that were coated with aggregated cationic polymer nanoparticles. The functionalized textile remained flexible and was found to exhibit broad-spectrum antimicrobial activity against a panel of Gram-negative and Gram-positive bacteria as well as fungal pathogens including the recently emerged multidrug-resistant <i>Candida auris</i>. This facile synthesis of microbicidal coatings on cotton fabric holds the potential to sustainably create functional wearables for the healthcare industry from cheaply available postconsumer commodity polymers.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586255","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
One-Pot Synthesis of Marine-Biodegradable Poly(Ethylene Succinate)-Based Ester Amide Copolymers Containing Amino Acid 一锅法合成含氨基酸的海洋可生物降解聚(乙烯琥珀酸)酯酰胺共聚物
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-08 DOI: 10.1021/acsapm.4c01179
Sumito Kumagai, Senri Hayashi, Atsushi Katsuragi, Motosuke Imada, Kaoko Sato, Hideki Abe, Noriyuki Asakura, Yasumasa Takenaka
{"title":"One-Pot Synthesis of Marine-Biodegradable Poly(Ethylene Succinate)-Based Ester Amide Copolymers Containing Amino Acid","authors":"Sumito Kumagai, Senri Hayashi, Atsushi Katsuragi, Motosuke Imada, Kaoko Sato, Hideki Abe, Noriyuki Asakura, Yasumasa Takenaka","doi":"10.1021/acsapm.4c01179","DOIUrl":"https://doi.org/10.1021/acsapm.4c01179","url":null,"abstract":"We developed a cost-effective one-pot method for synthesizing marine-biodegradable poly(ethylene succinate) (PES)-based ester amide copolymers containing natural amino acids, while suppressing the formation of <i>N</i>-succinimide rings. In conventional batch copolymerization, <i>N</i>-succinimide rings are easily formed when succinic acid (SA) and primary amines react at high temperatures, inhibiting the extension of the polymer chains. In this study, we synthesized prepolymers, which do not easily undergo imide cyclization, using an amino acid, ethylene glycol (EG), and dodecanedioic acid, followed by the one-pot addition of SA and EG. <span>L</span>-Valine and <span>L</span>- and β-alanine were used as amino acids with different substituents, and the numbers of <i>N</i>-succinimide rings in the resulting copolymers were calculated using <sup>1</sup>H nuclear magnetic resonance spectroscopy. This strategy successfully suppressed the formation of <i>N</i>-succinimide rings in several of the copolymers. Conversely, the use of amino acids with smaller substituents favored the formation of <i>N</i>-succinimide rings compared to the use of those with larger substituents. In biochemical oxygen demand biodegradability assessments utilizing seawater, the obtained polymers exhibited marine biodegradability comparable to that of cellulose, even though they contained amide bonds, indicating that the introduction of amide moieties did not affect the marine biodegradability of the original PES-based copolyester. Poly(ester amide)s can be biodegradable materials with high-performance properties. The results obtained may contribute to developing industrially advantageous SA-based materials copolymerized with other monomers bearing amino groups.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588317","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
Development of Sustainable Adhesives Based on Polysaccharide–Polyelectrolyte Complexes for Natural Fiber-Based Materials 为天然纤维基材料开发基于多糖-聚电解质复合物的可持续粘合剂
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-08 DOI: 10.1021/acsapm.4c00391
Wei-Shu Lin, Jeffrey M. Catchmark
{"title":"Development of Sustainable Adhesives Based on Polysaccharide–Polyelectrolyte Complexes for Natural Fiber-Based Materials","authors":"Wei-Shu Lin, Jeffrey M. Catchmark","doi":"10.1021/acsapm.4c00391","DOIUrl":"https://doi.org/10.1021/acsapm.4c00391","url":null,"abstract":"Polysaccharide–polyelectrolyte complex (PPC) materials have been recently explored as barrier materials for packaging applications. No studies, however, have been found on PPC adhesives developed for use in paperboard and wood composites. In this study, we prepared carboxymethyl cellulose (CMC)/chitosan (CS)-based PPCs (CMS PPCs) via ball milling and characterized their water and thermal stability, as well as adhesion performance, using both paper and wood substrates. The water stability of CMS PPC was examined using water solubility and water swelling tests. Preparation pH (4.5, 5.5, and 6.5) of CMS dominated the dissolution of CS and influenced complexation. Thus, the highest swelling rate and solubility occurred at CMS prepared at pH 6.5, which led to the lowest CS dissolution and weakest complexation. Comparison among solid contents (6, 7.5, and 9%) showed that the larger particle size associated with 6% CMS resulted in a looser film structure and poorer water stability. Adhesion performance with paper substrates indicated that an adhesive loading of 10 g/m<sup>2</sup> was needed for optimal bonding strength. Nine percent of CMS prepared with pH 4.5 exhibited a wood bonding strength of 7.89 ± 0.83 MPa in the dry state and retained approximately 35% strength in the wet state.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586010","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
Superior Barrier Performance of Poly(lactic acid) Films via Constructing Well-Defined Nanosized Crystals and Sandwich Structure 通过构建定义明确的纳米晶体和三明治结构实现聚乳酸薄膜的卓越阻隔性能
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-08 DOI: 10.1021/acsapm.4c01327
Ke-Yu Lan, Chun-Yan Liu, Ping-Ping Xu, De-Long Li, Jin Yu, Gan-Ji Zhong, Hua-Dong Huang, Zhong-Ming Li
{"title":"Superior Barrier Performance of Poly(lactic acid) Films via Constructing Well-Defined Nanosized Crystals and Sandwich Structure","authors":"Ke-Yu Lan, Chun-Yan Liu, Ping-Ping Xu, De-Long Li, Jin Yu, Gan-Ji Zhong, Hua-Dong Huang, Zhong-Ming Li","doi":"10.1021/acsapm.4c01327","DOIUrl":"https://doi.org/10.1021/acsapm.4c01327","url":null,"abstract":"Transparent packaging is of great significance to the establishment of consumer trust in consumption and the promotion of smart packaging. The environmental-friendly poly(lactic acid) (PLA) is featured with excellent transparency due to its amorphous state. However, the insufficient barrier properties and unsatisfactory ductility are becoming the stumbling blocks for the development of a PLA film in the field of transparent packaging. In this work, the combination of “biaxial stretching-constrained annealing” and the construction of a sandwich structure was carried out to fabricate a highly transparent PLA film with excellent comprehensive performance. Specifically, the fast biaxial stretching could construct a robust chain entanglement network in the amorphous region of the PLA layer, imparting superior ductility. Meanwhile, the perfect PLA crystals formed after biaxial stretching and constrained annealing acted as efficient “nano-barrier walls” and reinforcement units to boost up the barrier and mechanical properties. Furthermore, the poly(vinylidene fluoride-hexafluoropropylene) [P(VDF-HFP)] skin layer with excellent barrier properties could significantly suppress the oxygen and water vapor penetration. The work presented here provides a valuable clue to fabricate transparent, robust, and ductile PLA films with superior barrier performance, which will dramatically promote the application of the PLA film in the field of transparent packaging.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586248","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-Sensitivity Conductive Copolymer Hydrogel for Multifunctional Flexible Wearable Sensors Based on Salting-Out after Freeze-Casting Assisted UV-Curing 基于冷冻铸造辅助紫外线固化后脱盐技术的多功能柔性可穿戴传感器用高灵敏度导电共聚物水凝胶
IF 5 2区 化学
ACS Applied Polymer Materials Pub Date : 2024-07-07 DOI: 10.1021/acsapm.4c01127
Guyue Hu, Qirun Wang, Yongfei Lin, Jichao Shi, Xiaowei Xu, Runping Jia, Shufang Chang
{"title":"High-Sensitivity Conductive Copolymer Hydrogel for Multifunctional Flexible Wearable Sensors Based on Salting-Out after Freeze-Casting Assisted UV-Curing","authors":"Guyue Hu, Qirun Wang, Yongfei Lin, Jichao Shi, Xiaowei Xu, Runping Jia, Shufang Chang","doi":"10.1021/acsapm.4c01127","DOIUrl":"https://doi.org/10.1021/acsapm.4c01127","url":null,"abstract":"High sensitivity, consistent conductivity, and suitable mechanical strength were essential for strain sensor performance in the field of flexible wearables. The hydrogel containing poly(3,4-ethylenedioxythiophene)/lignosulfonate (PEDOT/LS) was bound to destroy the hydrogel network and affect its mechanical characteristics, even if it could safely and consistently increase conductivity. In this work, a salting-out after freeze-casting assisted UV-curing (SFUV) strategy was first offered as a solution to this problem. Waterborne polyurethane acrylate and polyacrylamide were copolymerized at low temperatures to form microcrystalline hydrogels with an anisotropic honeycomb channel stacking structure. When the solvent level was up to 70%, SFUV-Fe hydrogels outperformed typical hydrogels in terms of tensile properties (218 kPa), adhesion (13.9 kPa on plastics), gauge factor (5.07), and conductivity (2.31 S/m). Furthermore, the SFUV strategy provided the hydrogel with a variety of functionalities, including antifatigue, self-healing, and moisturizing capabilities, enabling for accurate and reliable detection of complicated human movements over time. As a result, this study presented a comprehensive solution for the development of sophisticated, strong, and resistant conductive soft materials appropriate for a variety of applications, establishing copolymer hydrogels as a promising candidate for flexible wearable electronic goods.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588319","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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