1
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Luangchuang P, Sornanankul T, Nakaramontri Y. Effects of Modifying Agent and Conductive Hybrid Filler on Butyl Rubber Properties: Mechanical, Thermo-Mechanical, Dynamical and Re-Crosslinking Properties. Polymers (Basel) 2023; 15:4023. [PMID: 37836072 PMCID: PMC10574903 DOI: 10.3390/polym15194023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 10/15/2023] Open
Abstract
Ionic crosslinking of bromobutyl rubber (BIIR) composites was prepared using butylimidazole (IM) and ionic liquid (IL), combined with carbon nanotubes (CNT) and conductive carbon black (CCB) to enhance the intrinsic properties and heal ability of the resulting composites. Variation in the BIIR/CNT-CCB/IM/IL ratios was investigated to determine the appropriate formulation for healing the composites. Results showed that the mechanical properties were increased until the IM:IL:CNT/CCB ratio reached 1:1:1/1.5, corresponding to the optimal concentration of 5:5:5/7.5 phr. Thermo-oxidative degradation, as indicated using temperature scanning stress relaxation (TSSR), demonstrated the decomposition of the composites at higher temperatures, highlighting the superior resistance provided by the proper formulation of BIIR composites. Additionally, the conditions for the healing procedure were examined by applying pressure, temperature, and time. It was observed that the composites exhibited good elasticity at 0 °C and 60 °C, with a high rate of re-crosslinking achieved under appropriate pressure and temperature conditions. This research aims to develop a formulation suitable for the tire tread and inner liner of commercial car tires together with artificial skin products.
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Affiliation(s)
| | | | - Yeampon Nakaramontri
- Sustainable Polymer & Innovative Composite Materials Research Group, Department of Chemistry, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand; (P.L.); (T.S.)
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2
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Yeh T, Yang P, Lin K, Zheng BW, Chen YT, Chiou K. Transferrable Electrospinning Nanofiber Meshes as Strongly Adhered Scaffolds for Slippery Liquid-Infused Porous Surfaces. ACS OMEGA 2023; 8:29122-29130. [PMID: 37599920 PMCID: PMC10433335 DOI: 10.1021/acsomega.3c02212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 07/12/2023] [Indexed: 08/22/2023]
Abstract
Slippery liquid-infused porous surfaces (SLIPS) are self-healing protective coatings that can be made by infiltration of a porous scaffold with a chemically resistant oil. A popular method to apply a SLIPS coating is using electrospinning to deposit a nanofiber mesh onto the intended substrate. However, electrospinning only lightly deposits the nanofibers onto the intended substrate, so the coating detaches easily even when unintended. We report a simple, yet effective, solution to the adhesion problem. Electrospun nanofiber meshes are typically well entangled and cohesive, so they can be detached from the electrospinning target and transferred onto the final target. Using a thin layer of adhesive on the intended surface, the electrospinning mesh can be securely attached and infiltrated with protective oil to yield a more stable SLIPS coating. An adhered coating can be submerged under corrosive solution and repeatedly self-heal from damage to the same spot. With the electrospun nanofiber meshes' flexibility and stretchability, the meshes can be fitted around a wide range of targets including ones that are otherwise difficult to apply a nanofiber mesh on. The use of an adhesive interlayer between the nanofiber mesh and substrate is a simple solution to improve coating stability, and the solution facilitates application of SLIPS onto a broader range of substrates.
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Affiliation(s)
- Tingyu Yeh
- Department of Materials and Optoelectronic
Sciences, National Sun Yat-Sen University, No. 70, Lianhai Road, Kaohsiung 80424, Taiwan
| | - Pinhsin Yang
- Department of Materials and Optoelectronic
Sciences, National Sun Yat-Sen University, No. 70, Lianhai Road, Kaohsiung 80424, Taiwan
| | - Kuanyu Lin
- Department of Materials and Optoelectronic
Sciences, National Sun Yat-Sen University, No. 70, Lianhai Road, Kaohsiung 80424, Taiwan
| | - Bo-Wen Zheng
- Department of Materials and Optoelectronic
Sciences, National Sun Yat-Sen University, No. 70, Lianhai Road, Kaohsiung 80424, Taiwan
| | - You-Tong Chen
- Department of Materials and Optoelectronic
Sciences, National Sun Yat-Sen University, No. 70, Lianhai Road, Kaohsiung 80424, Taiwan
| | - Kevin Chiou
- Department of Materials and Optoelectronic
Sciences, National Sun Yat-Sen University, No. 70, Lianhai Road, Kaohsiung 80424, Taiwan
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3
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Zhu Y, Li J, Kim J, Li S, Zhao Y, Bahari J, Eliahoo P, Li G, Kawakita S, Haghniaz R, Gao X, Falcone N, Ermis M, Kang H, Liu H, Kim H, Tabish T, Yu H, Li B, Akbari M, Emaminejad S, Khademhosseini A. Skin-interfaced electronics: A promising and intelligent paradigm for personalized healthcare. Biomaterials 2023; 296:122075. [PMID: 36931103 PMCID: PMC10085866 DOI: 10.1016/j.biomaterials.2023.122075] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/23/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
Skin-interfaced electronics (skintronics) have received considerable attention due to their thinness, skin-like mechanical softness, excellent conformability, and multifunctional integration. Current advancements in skintronics have enabled health monitoring and digital medicine. Particularly, skintronics offer a personalized platform for early-stage disease diagnosis and treatment. In this comprehensive review, we discuss (1) the state-of-the-art skintronic devices, (2) material selections and platform considerations of future skintronics toward intelligent healthcare, (3) device fabrication and system integrations of skintronics, (4) an overview of the skintronic platform for personalized healthcare applications, including biosensing as well as wound healing, sleep monitoring, the assessment of SARS-CoV-2, and the augmented reality-/virtual reality-enhanced human-machine interfaces, and (5) current challenges and future opportunities of skintronics and their potentials in clinical translation and commercialization. The field of skintronics will not only minimize physical and physiological mismatches with the skin but also shift the paradigm in intelligent and personalized healthcare and offer unprecedented promise to revolutionize conventional medical practices.
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Affiliation(s)
- Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States.
| | - Jinghang Li
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Jinjoo Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Shaopei Li
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Yichao Zhao
- Interconnected and Integrated Bioelectronics Lab, Department of Electrical and Computer Engineering, and Materials Science and Engineering, University of California, Los Angeles, CA, 90095, United States
| | - Jamal Bahari
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Payam Eliahoo
- Biomedical Engineering Department, University of Southern California, Los Angeles, CA, 90007, United States
| | - Guanghui Li
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China; Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Satoru Kawakita
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Xiaoxiang Gao
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, 92093, United States
| | - Natashya Falcone
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Menekse Ermis
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States
| | - Heemin Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hao Liu
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, 710049, PR China
| | - HanJun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States; College of Pharmacy, Korea University, Sejong, 30019, Republic of Korea
| | - Tanveer Tabish
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 7BN, United Kingdom
| | - Haidong Yu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Bingbing Li
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States; Department of Manufacturing Systems Engineering and Management, California State University, Northridge, CA, 91330, United States
| | - Mohsen Akbari
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States; Laboratory for Innovation in Microengineering (LiME), Department of Mechanical Engineering, Center for Biomedical Research, University of Victoria, Victoria, BC V8P 2C5, Canada
| | - Sam Emaminejad
- Interconnected and Integrated Bioelectronics Lab, Department of Electrical and Computer Engineering, and Materials Science and Engineering, University of California, Los Angeles, CA, 90095, United States
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, United States.
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Sasaki Y, Ohashi T, Mori H. Photoinduced healable hybrids based on anthracene-containing silsesquioxane nanoparticles. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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5
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Zhou Y, Li L, Han Z, Li Q, He J, Wang Q. Self-Healing Polymers for Electronics and Energy Devices. Chem Rev 2023; 123:558-612. [PMID: 36260027 DOI: 10.1021/acs.chemrev.2c00231] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Polymers are extensively exploited as active materials in a variety of electronics and energy devices because of their tailorable electrical properties, mechanical flexibility, facile processability, and they are lightweight. The polymer devices integrated with self-healing ability offer enhanced reliability, durability, and sustainability. In this Review, we provide an update on the major advancements in the applications of self-healing polymers in the devices, including energy devices, electronic components, optoelectronics, and dielectrics. The differences in fundamental mechanisms and healing strategies between mechanical fracture and electrical breakdown of polymers are underlined. The key concepts of self-healing polymer devices for repairing mechanical integrity and restoring their functions and device performance in response to mechanical and electrical damage are outlined. The advantages and limitations of the current approaches to self-healing polymer devices are systematically summarized. Challenges and future research opportunities are highlighted.
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Affiliation(s)
- Yao Zhou
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Li Li
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Zhubing Han
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Qi Li
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Jinliang He
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Qing Wang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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6
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Salem GG, Galishnikova VV, Elroba SM, Vatin NI, Kharun M. Finite Element Analysis of Self-Healing Concrete Beams Using Bacteria. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7506. [PMID: 36363097 PMCID: PMC9659025 DOI: 10.3390/ma15217506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Deterioration or crack formation in concrete elements is a phenomenon that cannot be easily avoided, and it has a high cost of repair. A modern technology that needs wider study is the use of the bio-precipitation of calcium carbonate using bacteria to increase a structures' capacity. The current research presents an analytical study on self-healing concrete beams using bacteria to enhance the beam's capacity. A Finite Element Analysis on (ANSYS 15.0) was carried out to study the effect of the bacteria concentration (the weight of bacteria to cement weight 1%, 2%, and 3%), the type of bacteria (Bacillus subtilis, E. coli, and Pseudomonas sps.), and the loading (a one-point load, a two-point load, and a distributed load on four points) on concrete beams. Two beams were chosen from previous experimental research and simulated on the ANSYS before carrying out our parametric study to verify the validity of our simulation. Following this, our parametric study was carried out on eight beams; each beam was loaded gradually up to failure. The results show that the optimum type of bacteria was the Bacillus subtilis, and that the bacteria concentration of 3% for Bacillus subtilis can increase the beam's capacity by 20.2%. Also, we found that distributing the load to four points led to the increase of the beam's capacity by 74.5% more than the beam with a one-point load.
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Affiliation(s)
- Ghada G. Salem
- Department of Construction Engineering, Egyptian Russian University (ERU), Badr City 11829, Egypt
| | - Vera V. Galishnikova
- Department of Civil Engineering, Moscow State University of Civil Engineering (National Research University), 26 Yaroslavskoye av., 129337 Moscow, Russia
| | - S. M. Elroba
- Department of Civil Engineering, Peoples’ Friendship University of Russia, 6 Miklukho-Maklaya st., 117198 Moscow, Russia
| | - Nikolai I. Vatin
- Department of Civil Engineering, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Makhmud Kharun
- Department of Civil Engineering, Moscow State University of Civil Engineering (National Research University), 26 Yaroslavskoye av., 129337 Moscow, Russia
- Department of Civil Engineering, Peoples’ Friendship University of Russia, 6 Miklukho-Maklaya st., 117198 Moscow, Russia
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7
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Bio-Vitrimers for Sustainable Circular Bio-Economy. Polymers (Basel) 2022; 14:polym14204338. [PMID: 36297916 PMCID: PMC9606967 DOI: 10.3390/polym14204338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The aim to achieve sustainable development goals (SDG) and cut CO2-emission is forcing researchers to develop bio-based materials over conventional polymers. Since most of the established bio-based polymeric materials demonstrate prominent sustainability, however, performance, cost, and durability limit their utilization in real-time applications. Additionally, a sustainable circular bioeconomy (CE) ensures SDGs deliver material production, where it ceases the linear approach from production to waste. Simultaneously, sustainable circular bio-economy promoted materials should exhibit the prominent properties to involve and substitute conventional materials. These interceptions can be resolved through state-of-the-art bio-vitrimeric materials that display durability/mechanical properties such as thermosets and processability/malleability such as thermoplastics. This article emphasizes the current need for vitrimers based on bio-derived chemicals; as well as to summarize the developed bio-based vitrimers (including reprocessing, recycling and self-healing properties) and their requirements for a sustainable circular economy in future prospects.
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8
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Lepcha G, Singha T, Majumdar S, Pradhan AK, Das KS, Datta PK, Dey B. Adipic acid directed self-healable supramolecular metallogels of Co(II) and Ni(II): intriguing scaffolds for comparative optical-phenomenon in terms of third-order optical non-linearity. Dalton Trans 2022; 51:13435-13443. [PMID: 35993453 DOI: 10.1039/d2dt01983c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Two brilliant outcomes of supramolecular self-assembly directed, low molecular weight organic gelator based self-healable Co(II) and Ni(II) metallogels were achieved. Adipic acid as the low molecular weight organic gelator and dimethylformamide (DMF) solvent are employed for the metallogelation process. Rheological analyses of both gel-scaffolds reveal mechanical toughness as well as visco-elasticity. Thixotropic behaviours of both the gels were scrutinized. Morphological variations due to the presence of two different metal ions with diverse metal-ligand coordinating interactions were established. The mechanistic pathways for forming stable metallogels of Co(II)-adipic acid (Co-AA) and Ni(II)-adipic acid (Ni-AA) were judiciously developed through infrared absorption spectral analysis. The nonlinear optical properties, such as the third-order process, of these synthesized metallogels were scrutinized by means of the Z-scan method at a beam excitation wavelength of 750 nm by a femtosecond laser with different excitation intensities ranging from 64 to 140 GW cm-2. The third-order nonlinear optical susceptibility (χ(3)) of the order of 10-14 esu was obtained from the measured Z-scan data. Both the metallogels exhibit positive nonlinear refraction and reverse saturable (RSA) absorption at high-intensity excitation. Co(II) and Ni(II) metallogels show nonlinear refractive indices (n2I) of (3.619 ± 0.146) × 10-6 cm2 GW-1 and (3.472 ± 0.102) × 10-6 cm2 GW-1, respectively, and two photon absorption coefficients (β) of (1.503 ± 0.045) × 10-1 cm GW-1 and (1.381 ± 0.029) × 10-1 cm GW-1 at an excitation intensity of 140 GW cm-2. We also studied the optical limiting properties with a limiting threshold of 9.57 mJ cm-2. Therefore, both metallogels can be considered promising materials for photonic devices: for instance, for optical switching and optical limiting.
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Affiliation(s)
- Gerald Lepcha
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India.
| | - Tara Singha
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Santanu Majumdar
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India.
| | - Amit Kumar Pradhan
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Krishna Sundar Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, West Bengal 700032, India
| | - Prasanta Kumar Datta
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Biswajit Dey
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India.
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9
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Parsimehr H, Ehsani A. Stimuli-Responsive Electrochemical Energy Storage Devices. CHEM REC 2022; 22:e202200075. [PMID: 35832003 DOI: 10.1002/tcr.202200075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/24/2022] [Indexed: 11/11/2022]
Abstract
Electrochemical energy storage (EES) devices have been swiftly developed in recent years. Stimuli-responsive EES devices that respond to different external stimuli are considered the most advanced EES devices. The stimuli-responsive EES devices enhanced the performance and applications of the EES devices. The capability of the EES devices to respond to the various external stimuli due to produced advanced EES devices that distinguished the best performance and interactions in different situations. The stimuli-responsive EES devices have responsive behavior to different external stimuli including chemical compounds, electricity, photons, mechanical tensions, and temperature. All of these advanced responsiveness behaviors have originated from the functionality and specific structure of the EES devices. The multi-responsive EES devices have been recognized as the next generation of stimuli-responsive EES devices. There are two main steps in developing stimuli-responsive EES devices in the future. The first step is the combination of the economical, environmental, electrochemical, and multi-responsiveness priorities in an EES device. The second step is obtaining some advanced properties such as biocompatibility, flexibility, stretchability, transparency, and wearability in novel stimuli-responsive EES devices. Future studies on stimuli-responsive EES devices will be allocated to merging these significant two steps to improve the performance of the stimuli-responsive EES devices to challenge complicated situations.
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Affiliation(s)
- Hamidreza Parsimehr
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Ali Ehsani
- Department of Chemistry, Faculty of Science, University of Qom, Qom, Iran
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Chamkouri H, Ahmadlouydarab M, Chamkouri M, Hosseini saeidavi F. Epoxy resin matrix integrating
epoxy‐
polydimethylsiloxane based self‐healing microcapsules: Healing efficiency, mechanical and thermal stability. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | - Majid Ahmadlouydarab
- Faculty of Chemical Engineering and Petroleum Engineering University of Tabriz Tabriz Iran
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11
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Hyaluronic acid-based self-repairing hydrogel preparation and 3D cell culture. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03017-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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13
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Eidi M, Zamani Pedram M. Thermal induced intrinsic self‐healing in epoxy based elastomer coatings provided by disulfide metathesis reactions. J Appl Polym Sci 2022. [DOI: 10.1002/app.52239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Morteza Eidi
- Faculty of Mechanical Engineering‐Energy Division K.N. Toosi University of Technology Tehran Iran
| | - Mona Zamani Pedram
- Faculty of Mechanical Engineering‐Energy Division K.N. Toosi University of Technology Tehran Iran
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Zheng D, Huang TH, Luo C, Tang J. Structural characterization, DFT studies and luminescent properties of dinuclear copper(I)-diimine complexes with the S-shape configurations. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120639] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Sriharshitha S, Krishnadevi K, Prasanna D. Vitrimers trigger covalent bonded bio-silica fused composite materials for recycling, reshaping, and self-healing applications. RSC Adv 2022; 12:26934-26944. [PMID: 36275168 PMCID: PMC9490535 DOI: 10.1039/d2ra03794g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/06/2022] [Indexed: 11/21/2022] Open
Abstract
Bio-based benzoxazines used eugenol and incorporated bio-silica (BS) and trimethylolpropane-tris(3-mercaptopropionate) (SH) for self-healing, recycling, and reshaping applications.
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Affiliation(s)
- Salendra Sriharshitha
- Polymer Composites Lab, Division of Chemistry, Department of Sciences & Humanities, Vignan's Foundation for Science, Technology and Research (Deemed to Be University), Guntur, Andhra Pradesh, India
| | - Krishnamoorthy Krishnadevi
- Polymer Composites Lab, Division of Chemistry, Department of Sciences & Humanities, Vignan's Foundation for Science, Technology and Research (Deemed to Be University), Guntur, Andhra Pradesh, India
- Department of Chemistry, Vignan Degree & PG College, Guntur, Andhra Pradesh, India
| | - Dakshinamoorthy Prasanna
- Department of Chemistry, Vignan's Nirula Institute of Technology and Science for Women, Guntur, Andhra Pradesh, India
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16
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Delgado Corrales B, Kaiser R, Nerlich P, Agraviador A, Sherry A. BioMateriOME: To understand microbe-material interactions within sustainable, living architectures. ADVANCES IN APPLIED MICROBIOLOGY 2022; 122:77-126. [PMID: 37085194 DOI: 10.1016/bs.aambs.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BioMateriOME evolved from a prototyping process which was informed from discussions between a team of designers, architects and microbiologists, when considering constructing with biomaterials or human cohabitation with novel living materials in the built environment. The prototype has two elements (i) BioMateriOME-Public (BMP), an interactive public materials library, and (ii) BioMateriOME-eXperimental (BMX), a replicated materials library for rigorous microbiome experimentation. The prototype was installed into the OME, a unique experimental living house, in order to (1) gain insights into society's perceptions of living materials, and (2) perform a comparative analysis of indoor surface microbiome development on novel biomaterials in contrast to conventional indoor surfaces, respectively. This review summarizes the BioMateriOME prototype and its use as a tool in combining microbiology, design, architecture and social science. The use of microbiology and biological components in the fabrication of biomaterials is provided, together with an appreciation of the microbial communities common to conventional indoor surfaces, and how these communities may change in response to the implementation of living materials in our homes. Societal perceptions of microbiomes and biomaterials, are considered within the framework of healthy architecture. Finally, features of architectural design with microbes in mind are introduced, with the possibility of codifying microbial surveillance into design and construction benchmarks, standards and regulations toward healthier buildings and their occupants.
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Affiliation(s)
- Beatriz Delgado Corrales
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Romy Kaiser
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Paula Nerlich
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Armand Agraviador
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Angela Sherry
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom.
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18
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Preparation and Characterization of Self-Healing Polyurethane Powder Coating Using Diels-Alder Reaction. Polymers (Basel) 2021; 13:polym13213803. [PMID: 34771360 PMCID: PMC8586937 DOI: 10.3390/polym13213803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 11/17/2022] Open
Abstract
Although powder coating systems offer many environmental, ecological and energy related benefits over liquid based coatings, in the case of uretdione based polyurethane systems, high curing temperature is still an issue. On the other hand, powder coating systems make it possible to reduce the costs and enhance the process of forming complex 3D structures using the deep drawing method by pre-coated metal substrates. During this processing method, there is a probability of micro crack formation in the coated film due to strain impact on the coating layer. A powder coating with self-healing ability is an ultimate solution to face not only this kind of fraction but also any other possible ones (such as defects caused by any impact on film surface during processing, transporting or even service). Here, a single molecule that is prepared via Diels–Alder cycloaddition reaction and retro Diels–Alder cleavage reaction was utilized as a self-healing additive to achieve self-healing ability in the powder coating system that is based on a commercially available uretdione cross-linker and OH-polyester resin. Coatings were prepared through melt mixing of components in a lab mixer, milling, sieving, and then application on the metal substrate through the electrostatic spraying method. To illustrate the role of self-healing additive, various concentrations (4 and 9% wt.) in combination with different curing temperatures (80 °C to 200 °C) were investigated. Both samples containing HA showed self-healing ability at elevated temperature around 120 °C for about 30 min with acceptable roughness and surface properties. Hardness measurement of cured film as well as thermal investigation indicate the chemical reaction of HA in a cross-linked network of cross-linker and resin. In addition, using HA leads to a 40 K drop in curing temperature of the system without using any catalyst. A 2.58% improvement in hardness values at a lower curing temperature and healing time of around 12.5 min at 120 °C to recover 100% of initial scratch (more than 10 cycles) in the sample containing 9% wt. HA was observed.
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19
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Lee UJ, Shin SR, Noh H, Song HB, Kim J, Lee DS, Kim BG. Rationally Designed Eugenol-Based Chain Extender for Self-Healing Polyurethane Elastomers. ACS OMEGA 2021; 6:28848-28858. [PMID: 34746577 PMCID: PMC8567349 DOI: 10.1021/acsomega.1c03802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Bio-based polyurethane (PU) has recently drawn our attention due to the increasing interest in sustainability and the risks involved with petroleum depletion. Herein, bio-based self-healing PU with a novel polyol, i.e., eugenol glycol dimer (EGD), was synthesized and characterized for the first time. EGD was designed to have pairs of primary, secondary, and aromatic alcohols, which all are able to be involved in urethane bond formation and to show self-healing and antioxidant effects. EGD was incorporated into a mixture of the prepolymer of polyol (tetramethylene ether glycol) and 4,4'-methylene diphenyl diisocyanate to synthesize PU. EGD-PU showed excellent self-healing properties (99.84%), and it maintained its high self-healing property (84.71%) even after three repeated tests. This dramatic self-healing was induced through transcarbamoylation by the pendant hydroxyl groups of EGD-PU. The excellent antioxidant effect of EGD-PU was confirmed by 2,2-diphenyl-1-picrylhydrazyl analysis. Eugenol-based EGD is a promising polyol chain extender that is required in the production of bio-based, self-healing, and recyclable polyurethane; therefore, EGD-PU can be applied to bio-based self-healable films or coating materials as a substitute for petroleum-based PU.
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Affiliation(s)
- Uk-Jae Lee
- School
of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, 08826 Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul
National University, Seoul, 08826 Republic of Korea
| | - Se-Ra Shin
- Research
Institute, Jungwoo Fine Co., Ltd., #63-8, Seogam-ro 1-gil, Iksan, Jeollabuk-do 54586, Republic of Korea
| | - Heewon Noh
- School
of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, 08826 Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul
National University, Seoul, 08826 Republic of Korea
| | - Han-Bit Song
- School
of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, 08826 Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul
National University, Seoul, 08826 Republic of Korea
| | - Junyeob Kim
- School
of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, 08826 Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul
National University, Seoul, 08826 Republic of Korea
| | - Dai-Soo Lee
- Research
Institute, Jungwoo Fine Co., Ltd., #63-8, Seogam-ro 1-gil, Iksan, Jeollabuk-do 54586, Republic of Korea
| | - Byung-Gee Kim
- School
of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, 08826 Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul
National University, Seoul, 08826 Republic of Korea
- Institute
of Bioengineering in Bio-Max, Seoul National
University, Gwanak-ro
1, Gwanak-gu, Seoul 08826, Republic of Korea
- Institute
for Sustainable Development(ISD), Seoul
National University, Seoul 08826, South Korea
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Viscoelastic behaviour of rapid and slow self-healing hydrogels formed by densely branched arabinoxylans from Plantago ovata seed mucilage. Carbohydr Polym 2021; 269:118318. [PMID: 34294330 DOI: 10.1016/j.carbpol.2021.118318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/13/2021] [Accepted: 06/05/2021] [Indexed: 11/19/2022]
Abstract
We report rheological characterisation of hydrogels formed by highly substituted brush-like arabinoxylans from Plantago ovata seed mucilage. Two arabinoxlyan fractions with similar molecular weight and linkage compositions are chosen to form gels with distinct rheological properties but a similar network structure. Small and large amplitude oscillatory shear rheology is used to characterise the sol-gel transition as a function of temperature and concentration. Differences in rheology and gelation of the two hydrogels are found to be associated with the different proportion of 'slow'- and 'fast'-dissociating junctions stabilised by hydrogen bonds, with the 'fast'-dissociating junctions playing an important role in rapid self-healing of the gel. Based on the temperature dependence of storage modulus and time-temperature superposition principle in combination with the Arrhenius equation, the activation energies of junction zone dissociation are estimated to be 402-480 kJ/mol and 97-144 kJ/mol for the 'slow' and 'fast' junction types, respectively.
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21
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Xiao M. Advances and rational design of chitosan-based autonomic self-healing hydrogels for biomedical applications. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02688-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Theoretical Characterization of New Frustrated Lewis Pairs for Responsive Materials. Polymers (Basel) 2021; 13:polym13101573. [PMID: 34068943 PMCID: PMC8155995 DOI: 10.3390/polym13101573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 01/08/2023] Open
Abstract
In recent years, responsive materials including dynamic bonds have been widely acclaimed due to their expectation to pilot advanced materials. Within these materials, synthetic polymers have shown to be good candidates. Recently, the so-called frustrated Lewis pairs (FLP) have been used to create responsive materials. Concretely, the activation of diethyl azodicarboxylate (DEAD) by a triphenylborane (TPB) and triphenylphosphine (TPP) based FLP has been recently exploited for the production of dynamic cross-links. In this work, we computationally explore the underlying dynamic chemistry in these materials, in order to understand the nature and reversibility of the interaction between the FLP and DEAD. With this goal in mind, we first characterize the acidity and basicity of several TPB and TPP derivatives using different substituents, such as electron-donating and electron-withdrawing groups. Our results show that strong electron-donating groups increase the acidity of TPB and decrease the basicity of TPP. However, the FLP–DEAD interaction is not mainly dominated by the influence of these substituents in the acidity or basicity of the TPB or TPP systems, but by attractive or repulsive forces between substituents such as hydrogen bonds or steric effects. Based on these results, a new material is proposed based on FLP–DEAD complexes.
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Tan YJ, Susanto GJ, Anwar Ali HP, Tee BCK. Progress and Roadmap for Intelligent Self-Healing Materials in Autonomous Robotics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2002800. [PMID: 33346389 DOI: 10.1002/adma.202002800] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/05/2020] [Indexed: 06/12/2023]
Abstract
Robots are increasingly assisting humans in performing various tasks. Like special agents with elite skills, they can venture to distant locations and adverse environments, such as the deep sea and outer space. Micro/nanobots can also act as intrabody agents for healthcare applications. Self-healing materials that can autonomously perform repair functions are useful to address the unpredictability of the environment and the increasing drive toward the autonomous operation. Having self-healable robotic materials can potentially reduce costs, electronic wastes, and improve a robot endowed with such materials longevity. This review aims to serve as a roadmap driven by past advances and inspire future cross-disciplinary research in robotic materials and electronics. By first charting the history of self-healing materials, new avenues are provided to classify the various self-healing materials proposed over several decades. The materials and strategies for self-healing in robotics and stretchable electronics are also reviewed and discussed. It is believed that this article encourages further innovation in this exciting and emerging branch in robotics interfacing with material science and electronics.
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Affiliation(s)
- Yu Jun Tan
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
- Institute of Innovation in Health Technology (iHealthtech), National University of Singapore, Singapore, 117599, Singapore
| | - Glenys Jocelin Susanto
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Hashina Parveen Anwar Ali
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Benjamin C K Tee
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
- Institute of Innovation in Health Technology (iHealthtech), National University of Singapore, Singapore, 117599, Singapore
- Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore
- N.1 Institute of Health, National University of Singapore, Singapore
- Institute of Materials Research and Engineering, Agency for Science Technology and Research, Singapore, 138634, Singapore
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24
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Mechano-responsive hydrogen-bonding array of thermoplastic polyurethane elastomer captures both strength and self-healing. Nat Commun 2021; 12:621. [PMID: 33504800 PMCID: PMC7841158 DOI: 10.1038/s41467-021-20931-z] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 12/24/2020] [Indexed: 11/29/2022] Open
Abstract
Self-repairable materials strive to emulate curable and resilient biological tissue; however, their performance is currently insufficient for commercialization purposes because mending and toughening are mutually exclusive. Herein, we report a carbonate-type thermoplastic polyurethane elastomer that self-heals at 35 °C and exhibits a tensile strength of 43 MPa; this elastomer is as strong as the soles used in footwear. Distinctively, it has abundant carbonyl groups in soft-segments and is fully amorphous with negligible phase separation due to poor hard-segment stacking. It operates in dual mechano-responsive mode through a reversible disorder-to-order transition of its hydrogen-bonding array; it heals when static and toughens when dynamic. In static mode, non-crystalline hard segments promote the dynamic exchange of disordered carbonyl hydrogen-bonds for self-healing. The amorphous phase forms stiff crystals when stretched through a transition that orders inter-chain hydrogen bonding. The phase and strain fully return to the pre-stressed state after release to repeat the healing process. Self-healing materials strive to emulate curable and resilient biological tissue but their performance is often insufficient for commercial applications because self-healing and toughening are mutually exclusive properties. Here, the authors report a tough and strong carbonate-type thermoplastic polyurethane elastomer that self-heals at ambient temperature.
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Zheng W, Huang J, Li S, Ge M, Teng L, Chen Z, Lai Y. Advanced Materials with Special Wettability toward Intelligent Oily Wastewater Remediation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:67-87. [PMID: 33382588 DOI: 10.1021/acsami.0c18794] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Clean water resources are essential to our human society. Oil leakage has caused water contamination, which leads to serious shortage of clean water, environmental deterioration, and even increasing number of deaths. It is of great urgency to solve the oil-polluted water problems worldwide. Efficient oil/water separation, especially emulsified oil/water mixture separation, is widely used to mitigate water pollution issues. Recently, advanced materials with special wettability have been employed for oily wastewater remediation. Moreover, by endowing them with various intelligent functions, smart materials can effectively separate complex oil/water mixtures including extremely stable emulsions. In this review, oil/water separation mechanisms and various fabrication methods of special wettability separation materials are summarized. We highlight the special wettable materials with intelligent functions, including photocatalytic, self-healing, and switchable oil/water separation materials, which can achieve self-cleaning, self-healing, and efficient oily wastewater treatment. In each section, the acting mechanisms, fabricating technologies, representative studies, and separation efficiency are briefly introduced. Lastly, the challenges and outlook for oil/water separation based on the special wettability materials are discussed.
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Affiliation(s)
- Weiwei Zheng
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Jianying Huang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Shuhui Li
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China
| | - Mingzheng Ge
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, P. R. China
| | - Lin Teng
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore
| | - Yuekun Lai
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China
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26
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Alabiso W, Hron TM, Reisinger D, Bautista-Anguís D, Schlögl S. Shape memory-assisted self-healing of dynamic thiol-acrylate networks. Polym Chem 2021. [DOI: 10.1039/d1py00925g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By following shape-memory assisted self-healing (SMASH), we used the shape-memory properties of thiol-acrylate photopolymers to physically close a scratch, whilst chemical healing was obtained via thermo-activated dynamic exchange reactions.
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Affiliation(s)
- Walter Alabiso
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria
| | - Tiago Manuel Hron
- Montanuniversität Leoben, Otto Glöckel-Straße 2/IV, 8700 Leoben, Austria
| | - David Reisinger
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria
| | | | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria
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27
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Breul K, Seiffert S. Amphiphilic poly(ether urethanes) carrying associative terpyridine side groups with controlled spacing. Polym Chem 2021. [DOI: 10.1039/d1py00121c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A synthesis for metallo-supramolecular crosslinkable polyurethanes with uniform vs. random sticker spacings is presented to study how sticker density and distribution affect the mechanical properties of the corresponding gels.
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Affiliation(s)
- Katharina Breul
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - Sebastian Seiffert
- Department of Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
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28
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Yang Y, Dang Z, Li Q, He J. Self-Healing of Electrical Damage in Polymers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002131. [PMID: 33173739 PMCID: PMC7610274 DOI: 10.1002/advs.202002131] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/17/2020] [Indexed: 05/13/2023]
Abstract
Polymers are widely used as dielectric components and electrical insulations in modern electronic devices and power systems in the industrial sector, transportation, and large appliances, among others, where electrical damage of the materials is one of the major factors threatening the reliability and service lifetime. Self-healing dielectric polymers, an emerging category of materials capable of recovering dielectric and insulating properties after electrical damage, are of promise to address this issue. This paper aims at summarizing the recent progress in the design and synthesis of self-healing dielectric polymers. The current understanding to the process of electrical degradation and damage in dielectric polymers is first introduced and the critical requirements in the self-healing of electrical damage are proposed. Then the feasibility of using self-healing strategies designed for repairing mechanical damage in the healing of electrical damage is evaluated, based on which the challenges and bottleneck issues are pointed out. The emerging self-healing methods specifically designed for healing electrical damage are highlighted and some useful mechanisms for developing novel self-healing dielectric polymers are proposed. It is concluded by providing a brief outlook and some potential directions in the future development toward practical applications in electronics and the electric power industry.
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Affiliation(s)
- Yang Yang
- State Key Laboratory of Power SystemDepartment of Electrical EngineeringTsinghua UniversityBeijing100084China
- Present address:
Simpson Querrey InstituteNorthwestern UniversityEvanstonIL60208USA
| | - Zhi‐Min Dang
- State Key Laboratory of Power SystemDepartment of Electrical EngineeringTsinghua UniversityBeijing100084China
| | - Qi Li
- State Key Laboratory of Power SystemDepartment of Electrical EngineeringTsinghua UniversityBeijing100084China
| | - Jinliang He
- State Key Laboratory of Power SystemDepartment of Electrical EngineeringTsinghua UniversityBeijing100084China
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29
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Arm-length-dependent phase transformation and dual dynamic healing behavior of supramolecular networks consisting of ureidopyrimidinone-end-functionalized semi-crystalline star polymers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109976] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Progress in Reaction Mechanisms and Reactor Technologies for Thermochemical Recycling of Poly(methyl methacrylate). Polymers (Basel) 2020; 12:polym12081667. [PMID: 32727004 PMCID: PMC7464549 DOI: 10.3390/polym12081667] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/15/2020] [Accepted: 07/18/2020] [Indexed: 11/22/2022] Open
Abstract
Chemical or feedstock recycling of poly(methyl methacrylate) (PMMA) by thermal degradation is an important societal challenge to enable polymer circularity. The annual PMMA world production capacity is over 2.4 × 106 tons, but currently only 3.0 × 104 tons are collected and recycled in Europe each year. Despite the rather simple chemical structure of MMA, a debate still exists on the possible PMMA degradation mechanisms and only basic batch and continuous reactor technologies have been developed, without significant knowledge of the decomposition chemistry or the multiphase nature of the reaction mixture. It is demonstrated in this review that it is essential to link PMMA thermochemical recycling with the PMMA synthesis as certain structural defects from the synthesis step are affecting the nature and relevance of the subsequent degradation reaction mechanisms. Here, random fission plays a key role, specifically for PMMA made by anionic polymerization. It is further highlighted that kinetic modeling tools are useful to further unravel the dominant PMMA degradation mechanisms. A novel distinction is made between global conversion or average chain length models, on the one hand, and elementary reaction step-based models on the other hand. It is put forward that only by the dedicated development of the latter models, the temporal evolution of degradation product spectra under specific chemical recycling conditions will become possible, making reactor design no longer an art but a science.
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31
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He Z, Niu H, Li Y. UV‐Light Responsive and Self‐Healable Ethylene/Propylene Copolymer Rubbers Based on Reversible [4 + 4] Cycloaddition of Anthracene Derivatives. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zongke He
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory of Polymer Science and EngineeringDepartment of Polymer Science and EngineeringSchool of Chemical EngineeringDalian University of Technology Dalian 116024 China
| | - Hui Niu
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory of Polymer Science and EngineeringDepartment of Polymer Science and EngineeringSchool of Chemical EngineeringDalian University of Technology Dalian 116024 China
| | - Yang Li
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory of Polymer Science and EngineeringDepartment of Polymer Science and EngineeringSchool of Chemical EngineeringDalian University of Technology Dalian 116024 China
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32
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Podgórski M, Fairbanks BD, Kirkpatrick BE, McBride M, Martinez A, Dobson A, Bongiardina NJ, Bowman CN. Toward Stimuli-Responsive Dynamic Thermosets through Continuous Development and Improvements in Covalent Adaptable Networks (CANs). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906876. [PMID: 32057157 DOI: 10.1002/adma.201906876] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/18/2019] [Indexed: 05/15/2023]
Abstract
Covalent adaptable networks (CANs), unlike typical thermosets or other covalently crosslinked networks, possess a unique, often dormant ability to activate one or more forms of stimuli-responsive, dynamic covalent chemistries as a means to transition their behavior from that of a viscoelastic solid to a material with fluid-like plastic flow. Upon application of a stimulus, such as light or other irradiation, temperature, or even a distinct chemical signal, the CAN responds by transforming to a state of temporal plasticity through activation of either reversible addition or reversible bond exchange, either of which allows the material to essentially re-equilibrate to an altered set of conditions that are distinct from those in which the original covalently crosslinked network is formed, often simultaneously enabling a new and distinct shape, function, and characteristics. As such, CANs span the divide between thermosets and thermoplastics, thus offering unprecedented possibilities for innovation in polymer and materials science. Without attempting to comprehensively review the literature, recent developments in CANs are discussed here with an emphasis on the most effective dynamic chemistries that render these materials to be stimuli responsive, enabling features that make CANs more broadly applicable.
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Affiliation(s)
- Maciej Podgórski
- Department of Chemical and Biological Engineering, University of Colorado, UCB 596, Boulder, CO, 80309, USA
- Department of Polymer Chemistry, Faculty of Chemistry, Maria Curia-Sklodowska University, pl. Marii Curie-Sklodowskiej 5, Lublin, 20-031, Poland
| | - Benjamin D Fairbanks
- Department of Chemical and Biological Engineering, University of Colorado, UCB 596, Boulder, CO, 80309, USA
| | - Bruce E Kirkpatrick
- Medical Scientist Training Program, School of Medicine, University of Colorado, Aurora, CO, 80045, USA
| | - Matthew McBride
- Department of Chemical and Biological Engineering, University of Colorado, UCB 596, Boulder, CO, 80309, USA
| | - Alina Martinez
- Materials Science and Engineering Program, University of Colorado, Boulder, CO, 80309, USA
| | - Adam Dobson
- Department of Chemical and Biological Engineering, University of Colorado, UCB 596, Boulder, CO, 80309, USA
| | - Nicholas J Bongiardina
- Materials Science and Engineering Program, University of Colorado, Boulder, CO, 80309, USA
| | - Christopher N Bowman
- Department of Chemical and Biological Engineering, University of Colorado, UCB 596, Boulder, CO, 80309, USA
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A Heterocyclic Polyurethane with Enhanced Self-Healing Efficiency and Outstanding Recovery of Mechanical Properties. Polymers (Basel) 2020; 12:polym12040968. [PMID: 32326281 PMCID: PMC7240572 DOI: 10.3390/polym12040968] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 11/17/2022] Open
Abstract
A functional polyurethane based on the heterocyclic group was synthesized and its self-healing and mechanical properties were examined. To synthesize a heterocyclic polyurethane, a polyol and a heterocyclic compound with di-hydroxyl groups at both ends were blended and the blended solution was reacted with a crosslinker containing multiple isocyanate groups. The heterocyclic polyurethane demonstrates better self-healing efficiency than the conventional polyurethane with no heterocyclic groups. Furthermore, unlike the conventional self-healing materials, the heterocyclic polyurethane examined in this study shows an outstanding recovery of the mechanical properties after the self-healing process. These results are attributed to the unique supramolecular network resulting from the strong hydrogen bonding interaction between the urethane group and the heterocyclic group in the heterocyclic polyurethane matrix.
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34
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Supramolecular Dimerization in a Polymer Melt from Small-Angle X-ray Scattering and Rheology: A Miscible Model System. Polymers (Basel) 2020; 12:polym12040880. [PMID: 32290322 PMCID: PMC7240474 DOI: 10.3390/polym12040880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 01/12/2023] Open
Abstract
We present a structural and dynamic study on the simplest supramolecular hetero-association, recently investigated by the authors to prepare architectural homogeneous structures in the melt state, based on the bio-inspired hydrogen-bonding of thymine/diaminotriazine (thy–DAT) base-pairs. In the combination with an amorphous low Tg poly(butylene oxide) (PBO), no micellar structures are formed, which is expected for nonpolar polymers because of noncompatibility with the highly polar supramolecular groups. Instead, a clear polymer-like transient architecture is retrieved. This makes the heterocomplementary thy–DAT association an ideal candidate for further exploitation of the hydrogen-bonding ability in the bulk for self-healing purposes, damage management in rubbers or even the development of easily processable branched polymers with built-in plasticizer. In the present work, we investigate the temperature range from Tg + 20 °C to Tg + 150 °C of an oligomeric PBO using small-angle X-ray scattering (SAXS) and linear rheology on the pure thy and pure DAT monofunctionals and on an equimolar mixture of thy/DAT oligomers. The linear rheology performed at low temperature is found to correspond to fully closed-state dimeric configurations. At intermediate temperatures, SAXS probes the equilibrium between open and closed states of the thy–DAT mixtures. The temperature-dependent association constant in the full range between open and closed H-bonds and an enhancement of the monomeric friction coefficient due to the groups is obtained. The thy–DAT association in the melt is more stable than the DAT–DAT, whereas the thy–thy association seems to involve additional long-lived interactions.
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Kazakli M, Mutch GA, Qu L, Triantafyllou G, Metcalfe IS. Autonomous and intrinsic self-healing Al2O3 membrane employing highly-wetting and CO2-selective molten salts. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Jiang M, Liu X, Chen Z, Li J, Liu S, Li S. Near-Infrared-Detached Adhesion Enabled by Upconverting Nanoparticles. iScience 2020; 23:100832. [PMID: 31986480 PMCID: PMC6994296 DOI: 10.1016/j.isci.2020.100832] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/18/2019] [Accepted: 01/07/2020] [Indexed: 12/22/2022] Open
Abstract
Achieving efficient and biocompatible detachment between adhered wet materials (i.e., tissues and hydrogels) is a major challenge. Recently, photodetachable topological adhesion has shown great promise as a strategy for conquering this hurdle. However, this photodetachment was triggered by UV light with poor biocompatibility and penetration capacity. This study describes near-infrared (NIR) light-detached topological adhesion based on polyacrylic acid coated upconverting nanoparticles (UCNP@PAA) and a photodetachable adhesive (termed Cell-Fe). Cell-Fe is a coordinated topological adhesive consisting of carboxymethylcellulose and Fe3+ that can be photodecomposed by UV light. To prepare a substrate for NIR-detached topological adhesion, UCNP@PAA and Cell-Fe were mixed and brushed on the surface of the model adherent. The UCNP@PAA can harvest NIR light and convert it into UV light, triggering the decomposition of the Cell-Fe and inducing the detachment. This NIR-detached topological adhesion is also feasible in deep tissue because of the ability of NIR light to penetrate tissue.
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Affiliation(s)
- Mingyue Jiang
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, P.R. China
| | - Xue Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, P.R. China
| | - Zhijun Chen
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, P.R. China.
| | - Jian Li
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, P.R. China
| | - Shouxin Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, P.R. China
| | - Shujun Li
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, P.R. China.
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Abstract
Self-healing strategies including intrinsic and extrinsic self-healing are commonly used for polymeric materials to restore their appearance and properties upon damage. Unlike intrinsic self-healing tactics where recovery is based on reversible chemical or physical bonds, extrinsic self-healing approaches rely on a secondary phase to acquire the self-healing functionality. Understanding the impacts of the secondary phase on both healing performance and matrix properties is important for rational system design. In this work, self-healing coating systems were prepared by blending a bio-based epoxy from diglycidyl ether of diphenolate esters (DGEDP) with thermoplastic polyurethane (TPU) prepolymers. Such systems exhibit polymerization induced phase separation morphology that controls coating mechanical and healing properties. Structure–property analysis indicates that the degree of phase separation is controlled by tuning the TPU prepolymer molecular weight. Increasing the TPU prepolymer molecular weight results in a highly phase separated morphology that is preferable for mechanical performances but undesirable for healing functionality. In this case, diffusion of TPU prepolymers during healing is restricted by the epoxy network rigidity and chain entanglement. Low molecular weight TPU prepolymers tend to phase mix with the epoxy matrix during curing, resulting in the formation of a flexible epoxy network that benefits TPU flow while decreasing Tg and mechanical properties. This work describes a rational strategy to develop self-healing coatings with controlled morphology to extend their functions and tailor their properties for specific applications.
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Lindenmeyer KM, Johnson RD, Miller KM. Self-healing behaviour of furan–maleimide poly(ionic liquid) covalent adaptable networks. Polym Chem 2020. [DOI: 10.1039/d0py00016g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Recovery of mechanical (tensile testing) and conductive (chronoamperometric cycling) properties was observed for PIL networks containing thermoreversible furan–maleimide crosslinks.
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Durand PL, Grau E, Cramail H. Bio-Based Thermo-Reversible Aliphatic Polycarbonate Network. Molecules 2019; 25:E74. [PMID: 31878284 PMCID: PMC6982953 DOI: 10.3390/molecules25010074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/07/2019] [Accepted: 12/12/2019] [Indexed: 12/04/2022] Open
Abstract
Aliphatic polycarbonates represent an important class of materials with notable applications in the biomedical field. In this work, low Tg furan-functionalized bio-based aliphatic polycarbonates were cross-linked thanks to the Diels-Alder (DA) reaction with a bis-maleimide as the cross-linking agent. The thermo-reversible DA reaction allowed for the preparation of reversible cross-linked polycarbonate materials with tuneable properties as a function of the pendent furan content that was grafted on the polycarbonate backbone. The possibility to decrosslink the network around 70 °C could be an advantage for biomedical applications, despite the rather poor thermal stability of the furan-functionalized cross-linked polycarbonates.
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Affiliation(s)
| | | | - Henri Cramail
- CNRS, University Bordeaux, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France; (P.-L.D.); (E.G.)
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Zhao Z, Wang D, Li C, Zuo J. Pinene‐Functionalized Polysiloxane as an Excellent Self‐Healing Superhydrophobic Polymer. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900361] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zi‐Han Zhao
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing National Laboratory of Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China
| | - Da‐Peng Wang
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing National Laboratory of Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China
| | - Cheng‐Hui Li
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing National Laboratory of Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China
| | - Jing‐Lin Zuo
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing National Laboratory of Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China
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Abend M, Zechel S, Schubert US, Hager MD. Detailed Analysis of the Influencing Parameters on the Self-Healing Behavior of Dynamic Urea-Crosslinked Poly(methacrylate)s. Molecules 2019; 24:molecules24193597. [PMID: 31590469 PMCID: PMC6804315 DOI: 10.3390/molecules24193597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 09/28/2019] [Accepted: 09/29/2019] [Indexed: 11/25/2022] Open
Abstract
For this paper, the self-healing ability of poly(methacrylate)s crosslinked via reversible urea bonds was studied in detail. In this context, the effects of healing time and temperature on the healing process were investigated. Furthermore, the impact of the size of the damage (i.e., area of the scratch) was monitored. Aging processes, counteracting the self-healing process, result in a decrease in the mechanical performance. This effect diminishes the healing ability. Consequently, the current study is a first approach towards a detailed analysis of self-healing polymers regarding the influencing parameters of the healing process, considering also possible aging processes for thermo-reversible polymer networks.
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Affiliation(s)
- Marcus Abend
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
- Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Stefan Zechel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
- Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
- Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Martin D Hager
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
- Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
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Goldmann AS, Boase NRB, Michalek L, Blinco JP, Welle A, Barner-Kowollik C. Adaptable and Reprogrammable Surfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902665. [PMID: 31414512 DOI: 10.1002/adma.201902665] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/06/2019] [Indexed: 06/10/2023]
Abstract
Establishing control over chemical reactions on interfaces is a key challenge in contemporary surface and materials science, in particular when introducing well-defined functionalities in a reversible fashion. Reprogrammable, adaptable and functional interfaces require sophisticated chemistries to precisely equip them with specific functionalities having tailored properties. In the last decade, reversible chemistries-both covalent and noncovalent-have paved the way to precision functionalize 2 or 3D structures that provide both spatial and temporal control. A critical literature assessment reveals that methodologies for writing and erasing substrates exist, yet are still far from reaching their full potential. It is thus critical to assess the current status and to identify avenues to overcome the existing limitations. Herein, the current state-of-the-art in the field of reversible chemistry on surfaces is surveyed, while concomitantly identifying the challenges-not only synthetic but also in current surface characterization methods. The potential within reversible chemistry on surfaces to function as true writeable memories devices is identified, and the latest developments in readout technologies are discussed. Finally, we explore how spatial and temporal control over reversible, light-induced chemistries has the potential to drive the future of functional interface design, especially when combined with powerful laser lithographic applications.
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Affiliation(s)
- Anja S Goldmann
- School of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Nathan R B Boase
- School of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Lukas Michalek
- School of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - James P Blinco
- School of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Alexander Welle
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Christopher Barner-Kowollik
- School of Chemistry, Physics, and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
- Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131, Karlsruhe, Germany
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Handique J, Gogoi J, Dolui SK. Development of self‐healing star metallopolymers by metal–ligand crosslinking. J Appl Polym Sci 2019. [DOI: 10.1002/app.48527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Junali Handique
- Department of Chemical SciencesTezpur University Tezpur Assam 784028 India
| | - Joly Gogoi
- Department of Chemical SciencesTezpur University Tezpur Assam 784028 India
| | - Swapan K. Dolui
- Department of Chemical SciencesTezpur University Tezpur Assam 784028 India
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Wu JK, Tan P, Lu J, Jiang Y, Liu XQ, Sun LB. Fabrication of Photothermal Silver Nanocube/ZIF-8 Composites for Visible-Light-Regulated Release of Propylene. ACS APPLIED MATERIALS & INTERFACES 2019; 11:29298-29304. [PMID: 31328495 DOI: 10.1021/acsami.9b09629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Releasing propylene from metal-organic frameworks (MOFs) after adsorption is attractive, but remains challenging because of the energy penalty in desorption by traditional techniques. Now, a metal-organic framework composite is constructed by encapsulating Ag nanocubes into ZIF-8 for controllable propylene desorption. ZIF-8 acts as an effective porous shell for accommodating propylene molecules, and Ag nanocubes perform as local "nanoheaters" to elevate the temperature by utilizing optical energy. Based on the surface plasmon resonance of Ag nanocubes, light energy can be converted into thermal energy and further transferred to the surroundings. The desorption capacity can be controlled by varying the content of Ag nanocubes introduced, and almost 100% of the propylene is released for the optical sample. Distinct from the electrical heating in industry, light-triggered heating remotely elevated the temperature of adsorbents from the inside out, which is particularly beneficial to heat-insulating MOFs. In addition, this approach heats only adsorbents rather than the entire fixed beds, improving the energy and time efficiency. The present light-triggered desorption may open up a new avenue to develop advanced adsorption/desorption cycles.
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Affiliation(s)
- Ju-Kang Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Peng Tan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Jie Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Yao Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Xiao-Qin Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Lin-Bing Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 211816 , China
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Effect of Doping Microcapsules on Typical Electrical Performances of Self-Healing Polyethylene Insulating Composite. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9153039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Polyethylene cables, as important transmission equipment of modern power grid, would inevitably be slightly damaged, which seriously threatens the safety of the power supply. This paper has pioneered the preparation and typical performances of a self-healing polyethylene insulating composite. The self-healing performance to structural damage was verified by tests of electrical and mechanical damage. The effect mechanism of doping microcapsules on the electrical performance of polyethylene was emphatically analyzed. The results show that in appropriate conditions (such as 60 °C/30 min), the composite can not only repair the electrical tree and scratches, but also restore the insulation strength of damaged area. The effect of doping microcapsules on the electrical performances of polyethylene, such as breakdown strength, volumetric resistivity, dielectric properties, and space charge characteristics, are mainly related to impurity and the interface of microcapsule. Polarization and ionization of impurities can reduce the electrical performance of polyethylene. The interface not only improves the microstructure of polyethylene (such as how the heterogeneous nucleation effect increases the number of crystal regions, and the anchoring effect enhances the stability of amorphous regions), but also increases the charge traps. Moreover, the microstructure and charge trap can affect the characteristics of carrier transport, material polarization, and space charge accumulation, thus improving the electrical performance of polyethylene. In addition, the important electrical performance of the composite can meet the basic application requirements of polyethylene insulating material, which has good application prospects.
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McBride MK, Worrell BT, Brown T, Cox LM, Sowan N, Wang C, Podgorski M, Martinez AM, Bowman CN. Enabling Applications of Covalent Adaptable Networks. Annu Rev Chem Biomol Eng 2019; 10:175-198. [DOI: 10.1146/annurev-chembioeng-060718-030217] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The ability to behave in a fluidlike manner fundamentally separates thermoset and thermoplastic polymers. Bridging this divide, covalent adaptable networks (CANs) structurally resemble thermosets with permanent covalent crosslinks but are able to flow in a manner that resembles thermoplastic behavior only when a dynamic chemical reaction is active. As a consequence, the rheological behavior of CANs becomes intrinsically tied to the dynamic reaction kinetics and the stimuli that are used to trigger those, including temperature, light, and chemical stimuli, providing unprecedented control over viscoelastic properties. CANs represent a highly capable material that serves as a powerful tool to improve mechanical properties and processing in a wide variety of polymer applications, including composites, hydrogels, and shape-memory polymers. This review aims to highlight the enabling material properties of CANs and the applied fields where the CAN concept has been embraced.
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Affiliation(s)
- Matthew K. McBride
- Department of Chemical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;, , , ,
| | - Brady T. Worrell
- Department of Chemical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;, , , ,
| | - Tobin Brown
- Department of Chemical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;, , , ,
| | - Lewis M. Cox
- Applied Chemicals and Materials Division, Material Measurement Laboratory, National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Nancy Sowan
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;,
| | - Chen Wang
- Formlabs Inc., Somerville, Massachusetts 02143, USA
| | - Maciej Podgorski
- Department of Chemical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;, , , ,
- Department of Polymer Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-614 Lublin, Poland
| | - Alina M. Martinez
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;,
| | - Christopher N. Bowman
- Department of Chemical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA;, , , ,
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Hughes T, Simon GP, Saito K. Light-Healable Epoxy Polymer Networks via Anthracene Dimer Scission of Diamine Crosslinker. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19429-19443. [PMID: 31062582 DOI: 10.1021/acsami.9b02521] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two anthracene-based diamine crosslinkers were used to cure a range of commercially available monomers to produce four highly photoreversible crosslinked epoxy polymers. Through careful selection of the epoxy monomers used, the properties of the resultant polymer networks were varied to create a coating material that possessed room-temperature light-stimulated healing. Of the four coatings created, the best healing performance was exhibited by the two most flexible systems, both of these also exhibited the thermal and mechanical performance necessary for coatings. By using anthracene, the utilization of a wide range of wavelengths in the healing process is possible, which in applications such as industrial coatings would be of significant benefit.
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Fabrication of dual network self-healing alginate/guar gum hydrogels based on polydopamine-type microcapsules from mesoporous silica nanoparticles. Int J Biol Macromol 2019; 129:916-926. [DOI: 10.1016/j.ijbiomac.2019.02.089] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/09/2019] [Accepted: 02/14/2019] [Indexed: 12/25/2022]
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