ACS Applied Polymer Materials最新文献_第9页

Thymol-Derived Trifunctional Epoxy Novolac from Controllable Synthesis to Performance-Advantaged Thermosets 从可控合成到性能优异的热固性塑料的百里酚衍生三官能环氧酚醛树脂

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-13 DOI: 10.1021/acsapm.4c0311810.1021/acsapm.4c03118

Boyang Li, Qiang Feng, Peng Xu, Nuo Cheng, Jingkui Cao and Jintao Wan*,

{"title":"Thymol-Derived Trifunctional Epoxy Novolac from Controllable Synthesis to Performance-Advantaged Thermosets","authors":"Boyang Li, Qiang Feng, Peng Xu, Nuo Cheng, Jingkui Cao and Jintao Wan*, ","doi":"10.1021/acsapm.4c0311810.1021/acsapm.4c03118","DOIUrl":"https://doi.org/10.1021/acsapm.4c03118https://doi.org/10.1021/acsapm.4c03118","url":null,"abstract":"In order to develop biobased epoxy resins with superior performance, this study highlights the synthesis, characterization, and properties of a biobased thymol-derived epoxy novolac and related thermosets. Thymol is cocondensated with 2,6-bis(hydroxymethyl)-p-cresol under catalysis of an acidic ion-exchange resin to yield a novolac (TPF) in an easy and controllable way. TPF is found to mainly consist of condensation products with three phenolic nuclei including two from thymol and one from 2,6-bis(hydroxymethyl)-p-cresol connected to two methylene bridges. Then, TPF is efficiently converted into a titled epoxy novolac (TEP) through O-glycidation. TEP and a curative (4,4′-diaminodiphenyl sulfone (44DDS) or methyl nadic anhydride (MNA)) are formed together to afford thermosets expressing highly desirable properties such as high Tg and low water absorption. A correlation is established between thermosetting network structures and their exhibited Tg, thermal stability, dynamic thermomechanical, dielectric and adhesion properties, solvent resistance, thermal diffusivity, and water absorption. Furthermore, TPF is used as a curative for TEP, to result in a TEP/TPF thermoset with significantly increased content of thymol blocks. This thermoset exhibits even superior properties, such as very low water uptake (<1%), decreased density, and good adhesion (>10 MPa), as well as moderate heat resistance (Tg = 136 °C). To conclude, TPF and TEP could be readily prepared in a more controlled manner, and their based epoxy thermosets exhibit multiple properties of interest with more tunability in network structures and ultimate performance, providing a robust candidate for performance-advantaged, value-added applications to advance sustainable epoxy chemistry and technology.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13989–14000 13989–14000"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691423","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

Silicon-Enriched Poly(vinyl alcohol)/Gelatin Hydrogels for 3D Printed Inks 用于 3D 打印墨水的富硅聚乙烯醇/明胶水凝胶

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-13 DOI: 10.1021/acsapm.4c0056810.1021/acsapm.4c00568

Kevin Catzim-Ríos, Cintya Soria-Hernández, Erick Ramírez-Cedillo, Maria Rocha-Pizaña, Jimena Gómez-Maldonado and Wendy Ortega-Lara*,

{"title":"Silicon-Enriched Poly(vinyl alcohol)/Gelatin Hydrogels for 3D Printed Inks","authors":"Kevin Catzim-Ríos, Cintya Soria-Hernández, Erick Ramírez-Cedillo, Maria Rocha-Pizaña, Jimena Gómez-Maldonado and Wendy Ortega-Lara*, ","doi":"10.1021/acsapm.4c0056810.1021/acsapm.4c00568","DOIUrl":"https://doi.org/10.1021/acsapm.4c00568https://doi.org/10.1021/acsapm.4c00568","url":null,"abstract":"Biomaterials have emerged as a promising approach for tissue engineering because they can mimic various physicochemical properties of tissues and support cell growth and proliferation. Recently, research in this field has focused on developing systems that promote tissue regeneration rather than replacing all damaged tissues. This study compares the synthesis and production of silicon bioceramic nanoparticles through chemical methods with naturally occurring silicon-rich particles known as diatoms. These nanoparticles were incorporated into poly(vinyl alcohol)/gelatin (PVA/Gel) hydrogels to enhance their bioactivity and mechanical behavior. The study began with characterizing ceramic particles using X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, and energy-dispersive X-ray analyses. Viability assays determined the optimum amount of CaSiO3 and diatom to promote cell proliferation in fibroblasts (NIH) and osteoblasts (HFOB). Intriguingly, silica-rich particles improved viability by promoting cell proliferation, which was increased by at least 20% in both cell lines. This suggests that silica-rich particles may mitigate the adverse effect of the hydrogel on cell viability. Finally, a new noncommercial printing system for the preparation of freeze–thaw cross-linked hydrogels was developed, and the possibility of 3D printing of the generated PVA/Gel formulation was verified.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13527–13539 13527–13539"},"PeriodicalIF":4.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c00568","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685213","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

Mechano-Triggered Release of Biomolecules from Supramolecular Hyaluronic Acid Hydrogels 超分子透明质酸水凝胶中生物分子的机械触发释放

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-12 DOI: 10.1021/acsapm.4c0277810.1021/acsapm.4c02778

Michael A. Maier, Fábio dos Santos Adrego, Shannon A. Jung, Anja M. Boos and Andrij Pich*,

{"title":"Mechano-Triggered Release of Biomolecules from Supramolecular Hyaluronic Acid Hydrogels","authors":"Michael A. Maier, Fábio dos Santos Adrego, Shannon A. Jung, Anja M. Boos and Andrij Pich*, ","doi":"10.1021/acsapm.4c0277810.1021/acsapm.4c02778","DOIUrl":"https://doi.org/10.1021/acsapm.4c02778https://doi.org/10.1021/acsapm.4c02778","url":null,"abstract":"Smart drug-delivery systems play an important role in the development of effective therapies and regenerative medicine. The precisely controlled release of bioactive molecules offers numerous advantages, such as reduced side effects and improved drug efficiency. In this work, we demonstrate an approach to load proteins into mechano-responsive hydrogels and release the payload via mechanical activation. For this, we synthesized hyaluronic acid hydrogels, which are cross-linked via supramolecular host–guest complexation. We varied the hyaluronic acid concentration between 100 and 150 mg mL–1 and the host–guest ratio between 1:2 and 3:1. The reversible cross-linking strategy enables the hydrogel network to respond with changes in its internal structure when an external mechanical force is applied. For mechano-activation, we applied pressure of 1.3 N cm–2 from the top. Hereby, we observed significantly enhanced protein release for the supramolecular gels, whereas no such behavior was seen for a conventional covalently cross-linked hydrogel. Further, we showed that, by adjusting the supramolecular hydrogels’ composition, their mechanical properties and distinctly related release profiles can be modulated (up to 32% higher release upon activation). Additionally, cytotoxicity tests showed excellent biocompatibility for the gels, making them promising candidates for applications in, for example, tissue engineering or personalized medical treatment.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13841–13854 13841–13854"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691624","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

Intrinsic Colored Flexible meta-Aramid with Highly Stable Fluorescence Emission 具有高稳定荧光发射的本征彩色柔性元芳纶

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-12 DOI: 10.1021/acsapm.4c0262910.1021/acsapm.4c02629

Zheng Zhang, Cong Wang, Xiaoyan Wang, Juan Chen, Changhai Xu, Guowei Xiao and Jinmei Du*,

{"title":"Intrinsic Colored Flexible meta-Aramid with Highly Stable Fluorescence Emission","authors":"Zheng Zhang, Cong Wang, Xiaoyan Wang, Juan Chen, Changhai Xu, Guowei Xiao and Jinmei Du*, ","doi":"10.1021/acsapm.4c0262910.1021/acsapm.4c02629","DOIUrl":"https://doi.org/10.1021/acsapm.4c02629https://doi.org/10.1021/acsapm.4c02629","url":null,"abstract":"In consideration of the rigid structure of meta-aramid (PMIA) and its difficulty in processing and dyeing, this work describes the preparation of two intrinsically chromogenic, high-performance aromatic polyamides (R-PMIA and Y-PMIA). 4,4′-Diaminodiphenyl ether was used to improve the flexibility of PMIA, while color was achieved by polymerizing diamine monomers containing chromogenic anthraquinone or acridine cores. The molecular structures of R-PMIA and Y-PMIA were confirmed by 1H NMR spectra. The flexible films with a thickness of 20–40 μm were prepared by solution casting and dry-wet processing methods, and they had relatively smooth surfaces and showed ductile deformation characteristics in fracture. The flexibility of R-PMIA and Y-PMIA films had been improved compared with the original aramid, and the elongation at break was increased by 63.6% and 28.8%, respectively. Despite a certain degree of thermal stability and mechanical strength degradation, the initial thermal decomposition temperature of the films remained at 389 and 395 °C, and the tensile strength exceeded 95 MPa. XRD results showed that there was no crystallization, and the glass transition temperature of the films was lower than that of the original aramid, which was beneficial to improving the processability of aromatic polyamide. In terms of color characteristics, R-PMIA and Y-PMIA films presented purple-red and yellow, respectively, and had excellent color fastness. In addition, the films also exhibited fluorescence properties, with maximum emission wavelengths of 643.2 and 557.8 nm, which were almost unaffected by external factors such as chemicals and high temperatures.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13795–13804 13795–13804"},"PeriodicalIF":4.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691228","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

The Fabrication of a Highly Sensitive, Wearable Sensor Utilizing V2C Nanohydrogel and Its Intelligent Applications in Education Training 利用 V2C 纳米水凝胶制造高灵敏度可穿戴传感器及其在教育培训中的智能应用

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-11 DOI: 10.1021/acsapm.4c0310310.1021/acsapm.4c03103

Dawei Tan, Huayin Xu, Hui Jing* and Xingwei Wang*,

{"title":"The Fabrication of a Highly Sensitive, Wearable Sensor Utilizing V2C Nanohydrogel and Its Intelligent Applications in Education Training","authors":"Dawei Tan, Huayin Xu, Hui Jing* and Xingwei Wang*, ","doi":"10.1021/acsapm.4c0310310.1021/acsapm.4c03103","DOIUrl":"https://doi.org/10.1021/acsapm.4c03103https://doi.org/10.1021/acsapm.4c03103","url":null,"abstract":"With the advancements in technology, there is an increasing demand for enhanced flexibility and convenience in flexible wearable sensors. A composite nanohydrogel sensor with excellent mechanical properties, high sensitivity, high stability, and real-time monitoring was prepared in this work. The hydrogel is made up of polyacrylamide, poly(vinyl alcohol), and V2C nanosheets. The integration of conductive V2C nanosheets substantially enhances the sensor’s conductivity and sensitivity. At the same tensile strain, the conductivity of the hydrogel increased by 80% with the addition of conductive material. The hydrogel achieves a maximum elongation of 1300% and maintains excellent linearity and sensitivity (2.46), even under a high tensile strain of 500%, ensuring a broad operational range for the wearable sensor. In addition, the sensor exhibits good repeatability (10 000 cycles) and impressive response/recovery times, recording 0.588 and 0.814 s under tension and 0.744 and 0.852 s under compression, respectively, ensuring real-time detection capabilities. Due to this outstanding performance, it was made into a wearable sensor for real-time monitoring of piano training, physical exercises, facial expressions, and gesture recognition, among others. Finally, through the analysis of training data sets and integration of Transformer algorithm design, the device can tailor optimal training plans for trainees, thereby enhancing training effectiveness. In summary, this device holds significant promise in augmenting educational performance, personalized training, rehabilitation, etc., thereby positively impacting modern education, sports, and healthcare.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13957–13968 13957–13968"},"PeriodicalIF":4.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691511","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

Hydrophobic Ionic Conductive Elastomer with Heterogeneous Structure for Underwater Shock-Resistant Sensing 具有异质结构的疏水性离子导电弹性体用于水下抗冲击传感技术

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-11 DOI: 10.1021/acsapm.4c0212210.1021/acsapm.4c02122

Mingman Sun, Xinghui Liu, Tao Zhang, Xue Zhang, Jialin Jia, Hao Xing, Wenna Wu*, Shuang Tong* and Shude Yang*,

{"title":"Hydrophobic Ionic Conductive Elastomer with Heterogeneous Structure for Underwater Shock-Resistant Sensing","authors":"Mingman Sun, Xinghui Liu, Tao Zhang, Xue Zhang, Jialin Jia, Hao Xing, Wenna Wu*, Shuang Tong* and Shude Yang*, ","doi":"10.1021/acsapm.4c0212210.1021/acsapm.4c02122","DOIUrl":"https://doi.org/10.1021/acsapm.4c02122https://doi.org/10.1021/acsapm.4c02122","url":null,"abstract":"It is a significant challenge to flexible wearable sensors that incur unstable output signals and malfunction because of omnipresent low-frequency vibrations. Because their design in terms of molecular friction is almost the opposite of the elasticity of the material, current sensing soft materials possess adequate elasticity but inadequate damping vibration. In contrast, using highly damaging materials for sensing is challenging due to their substantial hysteresis. Herein, a highly self-damping ionic elastomer with a heterogeneous two-phase structure is introduced by the one-step photopolymerization of fluorinated monomers and hydrophobic lauryl methacrylate (LMA). The distinct self-assembly behavior between fluorinated contents makes the occurrence of phase separation easier and thus decouples the damping and elastic functions into two different phases. This unique design overcomes the long-standing contradictions in the damping and elasticity of conventional gel materials. Thus, the optimal ionic elastomer of HIE-43 mol % achieves high stretchability, conductivity, elastic recovery, strain-stiffening, underwater adhesion, and high loss factors (tan δ > 1). Finally, reliable human motion sensing and underwater communication could be achieved with the ability of shock resistance and noise interference resistance. This study opens the door for the development of self-damping flexible conductive materials with robust sensing and protective applications.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13594–13604 13594–13604"},"PeriodicalIF":4.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691556","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

Fluorine-Free Polynorbornene Membranes Based on a Sterically Hindered Pyridine for Vanadium Redox Flow Batteries 基于立体受阻吡啶的无氟聚降冰片烯膜，用于钒氧化还原液流电池

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-11 DOI: 10.1021/acsapm.4c0168610.1021/acsapm.4c01686

Julian Stonawski*, Frieder Junginger, Andreas Münchinger, Linus Hager, Simon Thiele and Jochen Kerres*,

引用次数: 0

Thermosetting Sucrose-Based Wood Adhesive with Enhanced Water Resistance and Bonding Performance by Constructing a Schiff Base Cross-Linking Network 通过构建席夫碱交联网络提高耐水性和粘合性能的热固性蔗糖基木材粘合剂

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-11 DOI: 10.1021/acsapm.4c0297010.1021/acsapm.4c02970

Tiansong Liu, Chunyin Li, Xuedong Xi, Zechang Wei*, Zhigang Wu, Zhiwei Yan, Hong Lei* and Guanben Du,

{"title":"Thermosetting Sucrose-Based Wood Adhesive with Enhanced Water Resistance and Bonding Performance by Constructing a Schiff Base Cross-Linking Network","authors":"Tiansong Liu, Chunyin Li, Xuedong Xi, Zechang Wei*, Zhigang Wu, Zhiwei Yan, Hong Lei* and Guanben Du, ","doi":"10.1021/acsapm.4c0297010.1021/acsapm.4c02970","DOIUrl":"https://doi.org/10.1021/acsapm.4c02970https://doi.org/10.1021/acsapm.4c02970","url":null,"abstract":"In biomass materials, sucrose is one of the most abundant renewable resources, with the advantages of high purity and lower cost of acquisition. However, sucrose cannot be used as an adhesive directly because of its poor water resistance. Herein, in this work, a biomass sucrose-based adhesive with improved bonding strength and water resistance was prepared by oxidized sucrose (OS) and aminated tannins (NTA). The chemical structure of the sucrose-amidated tannin network was confirmed by Fourier transform infrared (FT-IR) and electron ionization mass spectrometry (ESI-MS), which indicates a Schiff base reaction occurred between oxidized sucrose and amidated tannin. Furthermore, the properties of the oxidized sucrose/aminated tannin (OSNTA) adhesive were tuned considering the effects of reaction time and mass ratio of sucrose/NTA. It reveals that increasing the mass ratio of sucrose/NTA is more advantageous to improve the bonding strength and water resistance of plywood than extending the reaction time. The dry and wet strengths of plywood bonded by the resulting adhesive can reach the relative standard requirement of GB/T 17657-2022 (≥0.7 MPa) when the mass ratio of oxidized sucrose and aminated tannin was 1:0.45. This work provides an approach for preparing a biobased non-aldehyde wood adhesive by using sucrose and tannin.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13927–13936 13927–13936"},"PeriodicalIF":4.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691517","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

Evaporation Induced Flame Retardant Polyelectrolyte Complex for Cotton 用于棉花的蒸发诱导型阻燃聚电解质复合物

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-11 DOI: 10.1021/acsapm.4c0293710.1021/acsapm.4c02937

Maya D. Montemayor, Danixa Rodriguez-Melendez, Edward Chang, Dallin L. Smith, Natalie A. Vest, Alexandra Moran, Bethany Palen and Jaime C. Grunlan*,

{"title":"Evaporation Induced Flame Retardant Polyelectrolyte Complex for Cotton","authors":"Maya D. Montemayor, Danixa Rodriguez-Melendez, Edward Chang, Dallin L. Smith, Natalie A. Vest, Alexandra Moran, Bethany Palen and Jaime C. Grunlan*, ","doi":"10.1021/acsapm.4c0293710.1021/acsapm.4c02937","DOIUrl":"https://doi.org/10.1021/acsapm.4c02937https://doi.org/10.1021/acsapm.4c02937","url":null,"abstract":"Cotton is one of the most used textiles due to its comfort and breathable nature, but it is extremely flammable. To reduce the flammability, a polyelectrolyte complex coating composed of polyethylenimine (PEI) and sodium hexametaphosphate (PSP) is deposited in a single step. Ammonia is used as a volatile base that evaporates to reduce the pH and induces complexation on the cotton surface. Cotton coated with a 1:2 molar ratio of PEI:PSP gains 28 wt % and reduces the total heat release by 93%, compared to neat cotton. The method of flame retardant action can be attributed to an effective intumescent coating. After five water rinses, the coated cotton maintains its flame retardant behavior, with only 7 wt % added to the textile, due to a more effective ionically cross-linked network. This study demonstrates, for the first time, an efficient and scalable evaporation induced polyelectrolyte complex coating that imparts self-extinguishing behavior to cotton and can be adapted for many other flammable materials.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"13896–13903 13896–13903"},"PeriodicalIF":4.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c02937","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685163","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

Achieving High Thermoelectric, Stretchable, and Self-Healing Capabilities in Self-Supported PEDOT:PSS/Nafion/Poly(vinyl Alcohol) Composites for Wearable Thermoelectric Power Generators and Sensors 在自支撑 PEDOT:PSS/Nafion/Poly(Vinyl Alcohol) 复合材料中实现高热电、可拉伸和自愈合能力，用于可穿戴式热电发生器和传感器

IF 4.4 2区化学

ACS Applied Polymer Materials Pub Date : 2024-11-11 DOI: 10.1021/acsapm.4c0314310.1021/acsapm.4c03143

Lijun Lu, Zhixiong Liao, Dongxia Xian, Boyu Zhao, Chunmei Gao* and Lei Wang,

{"title":"Achieving High Thermoelectric, Stretchable, and Self-Healing Capabilities in Self-Supported PEDOT:PSS/Nafion/Poly(vinyl Alcohol) Composites for Wearable Thermoelectric Power Generators and Sensors","authors":"Lijun Lu, Zhixiong Liao, Dongxia Xian, Boyu Zhao, Chunmei Gao* and Lei Wang, ","doi":"10.1021/acsapm.4c0314310.1021/acsapm.4c03143","DOIUrl":"https://doi.org/10.1021/acsapm.4c03143https://doi.org/10.1021/acsapm.4c03143","url":null,"abstract":"In wearable devices, the escalating demand for self-powered and low-maintenance cost energy has emphatically underscored the significance of organic thermoelectric materials (OTMs). Nevertheless, a widespread challenge is that most high-performance OTMs are prone to damage, which significantly hampers their reliability and longevity. This study presents a flexible and self-healing thermoelectric composite comprising poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/Nafion/poly(vinyl alcohol) (PVA) and explores its application in self-powered strain and sensors. The results reveal that the self-healing thermoelectric material showcases impressive flexibility, with a tensile strain capacity of 141% and a peak tensile strength of 26 MPa. Notably, it demonstrates superior thermoelectric performance, featuring a remarkable conductivity of 424.14 ± 34.28 S·cm–1, the peak value reported thus far for self-healing and stretchable all-organic thermoelectric materials, along with a notable power factor of 8.70 ± 0.81 μW·m–1·K–2. The dynamic interplay of hydrogen bonding among PEDOT:PSS, Nafion, and PVA facilitates swift and effective repair of scratches and cuts, sustaining 76.1% of the initial thermoelectric performance. Furthermore, utilizing the composite, a thermoelectric generator was assembled with a power output of 120.64 nW at a temperature difference of 36 K. In addition, sensitive self-powered strain and temperature sensors were successfully developed. This work introduces an effective method for achieving intrinsic self-healing in OTMs, resulting in enhanced electrical conductivity and power generation capabilities.","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 22","pages":"14001–14008 14001–14008"},"PeriodicalIF":4.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691472","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