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Qiu L, Zhou Y, Zhao Z, Wang Q, Chu L, Wen S. Constructing Self-Healing Polydimethylsiloxane through Molecular Structure Design and Metal Ion Bonding. Polymers (Basel) 2024; 16:1309. [PMID: 38794502 PMCID: PMC11124844 DOI: 10.3390/polym16101309] [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: 03/10/2024] [Revised: 04/22/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
Self-healing polydimethylsiloxane (PDMS) has garnered significant attention due to its potential applications across various fields. In this study, a functionalized modification of PDMS containing di-aminos was initially conducted using 2,6-pyridinedicarbonyl chloride to synthesize pyridine-PDMS (Py-PDMS). Subsequently, rare earth metal europium ions (Eu3+) were incorporated into Py-PDMS. Due to the coordination interaction between Eu3+ and organic ligands, a coordination cross-linking network was created within the Py-PDMS matrix, resulting in the fabrication of Eu3+-Py-PDMS elastomer. At a molar ratio of Eu3+ to ligands of 1:1, the tensile strength of Eu3+-Py-PDMS reached 1.4 MPa, with a fracture elongation of 824%. Due to the dynamic reversibility of coordination bonds, Eu3+-Py-PDMS with a metal-to-ligand molar ratio of 1:2 exhibited varying self-healing efficiencies at different temperatures. Notably, after 4 h of repair at 60 °C, its self-healing efficiency reached nearly 100%. Furthermore, the gas barrier properties of Eu3+-Py-PDMS with a molar ratio of 1:1 was improved compared with that of Eu3+-Py-PDMS with a molar ratio of 1:1. This study provides an effective strategy for the design and fabrication of PDMS with high mechanical strength, high gas barrier properties, and exceptional self-healing efficiency.
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Affiliation(s)
- Lvchao Qiu
- State Grid Zhejiang Electric Power Co., Ltd., Research Institute, Hangzhou 310014, China
| | - Yutong Zhou
- State Grid Zhejiang Electric Power Co., Ltd., Research Institute, Hangzhou 310014, China
| | - Zhoufeng Zhao
- State Grid Zhejiang Electric Power Co., Ltd., Research Institute, Hangzhou 310014, China
| | - Qi Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lijun Chu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shipeng Wen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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Hong PH, Moon G, Kim J, Choi K, Ko MJ, Yoon HG, Hong SW. Highly Self-Healable Polymeric Coating Materials Based on Charge Transfer Complex Interactions with Outstanding Weatherability. Polymers (Basel) 2023; 15:4544. [PMID: 38231957 PMCID: PMC10707963 DOI: 10.3390/polym15234544] [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: 11/08/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 01/19/2024] Open
Abstract
In this study, we prepare highly self-healable polymeric coating materials using charge transfer complex (CTC) interactions. The resulting coating materials demonstrate outstanding thermal stability (1 wt% loss thermal decomposition temperature at 420 °C), rapid self-healing kinetics (in 5 min), and high self-healing efficiency (over 99%), which is facilitated by CTC-induced multiple interactions between the polymeric chains. In addition, these materials exhibit excellent optical properties, including transmittance over 91% and yellow index (YI) below 2, and show enhanced weatherability with a ΔYI value below 0.5 after exposure to UV light for 72 h. Furthermore, the self-healable coating materials developed in this study show outstanding mechanical properties by overcoming the limitations of conventional self-healing materials.
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Affiliation(s)
- Pyong Hwa Hong
- Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si 31056, Republic of Korea
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Gyeongmin Moon
- Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si 31056, Republic of Korea
| | - Jinsil Kim
- Department of Chemical Engineering, University of Montreal, 2900 Edouard Montpetit Blvd, Montreal, QC H3T 1J4, Canada
| | - Kiwon Choi
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Min Jae Ko
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
- Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Ho Gyu Yoon
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sung Woo Hong
- Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si 31056, Republic of Korea
- Convergence Research Center for Solutions to Electromagnetic Interference in Future-Mobility, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
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Choi K, Noh A, Kim J, Hong PH, Ko MJ, Hong SW. Properties and Applications of Self-Healing Polymeric Materials: A Review. Polymers (Basel) 2023; 15:4408. [PMID: 38006132 PMCID: PMC10674826 DOI: 10.3390/polym15224408] [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: 09/23/2023] [Revised: 10/29/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Self-healing polymeric materials, engineered to autonomously self-restore damages from external stimuli, are at the forefront of sustainable materials research. Their ability to maintain product quality and functionality and prolong product life plays a crucial role in mitigating the environmental burden of plastic waste. Historically, initial research on the development of self-healing materials has focused on extrinsic self-healing systems characterized by the integration of embedded healing agents. These studies have primarily focused on optimizing the release of healing agents and ensuring rapid self-healing capabilities. In contrast, recent advancements have shifted the focus towards intrinsic self-healing systems that utilize their inherent reactivity and interactions within the matrix. These systems offer the advantage of repeated self-healing over the same damaged zone, which is attributed to reversible chemical reactions and supramolecular interactions. This review offers a comprehensive perspective on extrinsic and intrinsic self-healing approaches and elucidates their unique properties and characteristics. Furthermore, various self-healing mechanisms are surveyed, and insights from cutting-edge studies are integrated.
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Affiliation(s)
- Kiwon Choi
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Ahyeon Noh
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Jinsil Kim
- Department of Chemical Engineering, University of Montreal, 2900 Edouard Montpeit Blvc, Montreal, QC H3T 1J4, Canada
| | - Pyong Hwa Hong
- Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si 31056, Chungcheongnam-do, Republic of Korea
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Min Jae Ko
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Sung Woo Hong
- Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si 31056, Chungcheongnam-do, Republic of Korea
- Convergence Research Center for Solutions to Electromagnetic Interference in Future-Mobility, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
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Utrera-Barrios S, Verdejo R, López-Manchado MÁ, Hernández Santana M. Self-Healing Elastomers: A sustainable solution for automotive applications. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Li Z, Song LF, Sharma G, Koca Fındık B, Merz KM. Accurate Metal-Imidazole Interactions. J Chem Theory Comput 2022; 19:619-625. [PMID: 36584400 DOI: 10.1021/acs.jctc.2c01081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Modeling the interaction between a metal ion and small molecules can provide pivotal information to bridge and close the gap between two types of simulations: metal ions in water and metal ions in metalloproteins. As previously established, the 12-6-4 Lennard-Jones (LJ)-type nonbonded model, because of its ability to account for the induced dipole effect, has been highly successful in simulating metal ion systems. Using the potential of mean force (PMF) method, the polarizability of the metal-chelating nitrogen from two types of imidazole molecules, delta nitrogen protonated (HID) and epsilon nitrogen protonated (HIE), has been parametrized against experiment for 11 metals (Ag(I), Ca(II), Cd(II), Co(II), Cu(I), Cu(II), Fe(II), Mg(II), Mn(II), Ni(II), and Zn(II)) in conjunction with three commonly used water models (TIP3P, SPC/E, and OPC). We show that the standard 12-6 and unmodified 12-6-4 models are not able to accurately model these interactions and, indeed, predict that the complex should be unstable. The resultant parameters further establish the flexibility and the reliability of the 12-6-4 LJ-type nonbonded model, which can correctly describe three-component interactions between a metal, ligand, and solvent by simply tuning the polarizability of the chelating atom. Also, the transferability of this model was tested, showing the capability of describing metal-ligand interactions in various environments.
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Affiliation(s)
- Zhen Li
- Department of Chemistry, Michigan State University, East Lansing, Michigan48824, United States
| | - Lin Frank Song
- Department of Chemistry, Michigan State University, East Lansing, Michigan48824, United States
| | - Gaurav Sharma
- Department of Chemistry, Michigan State University, East Lansing, Michigan48824, United States
| | - Basak Koca Fındık
- Department of Chemistry, Boğaziçi University, Bebek, 34342Istanbul, Turkey
| | - Kenneth M Merz
- Department of Chemistry, Michigan State University, East Lansing, Michigan48824, United States
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan48824, United States
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Zhang J, Cao L, Chen Y. Malleable and self-healing rubbers covalently crosslinked by reversible boronic ester bonds. SOFT MATTER 2022; 18:8436-8445. [PMID: 36314298 DOI: 10.1039/d2sm01127a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Covalent cross-linking of rubbers is essential to obtain high elasticity, which plays a significant role in practical applications. Integrating dynamic covalent bonds into rubbers is a reliable way to endow them with self-healing capacity to repair damage and extend their service life. Herein, we propose a facile and effective method to introduce a crosslinking network composed of dynamic boronic ester bonds into epoxidized natural rubber (ENR). The reaction between dopamine-modified ENR and the hydrolysate of boric acid in weak alkaline solution formed a cross-linking network with reversible boronic ester bonds. Owing to the rearrangement of the crosslinked network initiated by the boronic ester exchange reaction, covalently crosslinked rubbers exhibit relatively better malleability and excellent self-healing ability under moderate conditions (60 °C/24 h).
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Affiliation(s)
- Jiahao Zhang
- Lab of Advanced Elastomer, School of Mechanical and Automotive Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China.
| | - Liming Cao
- College of Food Science, South China Agricultural University, Guangzhou, 510642, China.
| | - Yukun Chen
- Lab of Advanced Elastomer, School of Mechanical and Automotive Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China.
- Zhongshan Institute of Modern Industrial Technology, South China University of Technology, Zhongshan 528437, China
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Mohd Sani NF, Yee HJ, Othman N, Talib AA, Shuib RK. Intrinsic self-healing rubber: A review and perspective of material and reinforcement. POLYMER TESTING 2022; 111:107598. [DOI: 10.1016/j.polymertesting.2022.107598] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Gold Nanoparticles as Effective ion Traps in Poly(dimethylsiloxane) Cross-Linked by Metal-Ligand Coordination. Molecules 2022; 27:molecules27113579. [PMID: 35684515 PMCID: PMC9182465 DOI: 10.3390/molecules27113579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 11/23/2022] Open
Abstract
At this time, the development of advanced elastic dielectric materials for use in organic devices, particularly in organic field-effect transistors, is of considerable interest to the scientific community. In the present work, flexible poly(dimethylsiloxane) (PDMS) specimens cross-linked by means of ZnCl2-bipyridine coordination with an addition of 0.001 wt. %, 0.0025 wt. %, 0.005 wt. %, 0.04 wt. %, 0.2 wt. %, and 0.4 wt. % of gold nanoparticles (AuNPs) were prepared in order to understand the effect of AuNPs on the electrical properties of the composite materials formed. The broadband dielectric spectroscopy measurements revealed one order of magnitude decrease in loss tangent, compared to the coordinated system, upon an introduction of 0.001 wt. % of AuNPs into the polymeric matrix. An introduction of AuNPs causes damping of conductivity within the low-temperature range investigated. These effects can be explained as a result of trapping the Cl− counter ions by the nanoparticles. The study has shown that even a very low concentration of AuNPs (0.001 wt. %) still brings about effective trapping of Cl− counter anions, therefore improving the dielectric properties of the investigated systems. The modification proposed reveals new perspectives for using AuNPs in polymers cross-linked by metal-ligand coordination systems.
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Electrical response on the nickel-ion containing organic–inorganic hybrid system for the sensing of dopamine. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kim J, Jung H, Kim M, Bae H, Lee Y. Conductive Polymer Composites for Soft Tactile Sensors. Macromol Res 2021. [DOI: 10.1007/s13233-021-9092-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wrzesińska A, Wypych-Puszkarz A, Bobowska I, Ulański J. Effects of Counter Anions on AC and DC Electrical Conductivity in Poly(Dimethylsiloxane) Crosslinked by Metal-Ligand Coordination. Polymers (Basel) 2021; 13:polym13060956. [PMID: 33804697 PMCID: PMC8003853 DOI: 10.3390/polym13060956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022] Open
Abstract
There is an urgent need for the development of elastic dielectric materials for flexible organic field effect transistors (OFETs). In this work, detailed analysis of the AC and DC electrical conductivity of a series of flexible poly(dimethylsiloxane) (PDMS) polymers crosslinked by metal-ligand coordination in comparison to neat PDMS was performed for the first time by means of broadband dielectric spectroscopy. The ligand was 2,2-bipyridine-4,4-dicarboxylic amide, and Ni2+, Mn2+, and Zn2+ were introduced for Cl−, Br−, and I− salts. Introduction of metal salt and creation of coordination bonds resulted in higher permittivity values increasing in an order: neat PDMS < Ni2+ < Mn2+ < Zn2+; accompanied by conductivity values of the materials increasing in an order: neat PDMS < Cl− < I− < Br−. Conductivity relaxation time plot as a function of temperature, showed Vogel-Fulcher–Tammann dependance for the Br− salts and Arrhenius type for the Cl− and I− salts. Performed study revealed that double-edged challenge can be obtained, i.e., dielectric materials with elevated value of dielectric permittivity without deterioration too much the non-conductive nature of the polymer. This opens up new perspectives for the production of flexible dielectrics suitable for gate insulators in OFETs. Among the synthesized organometallic materials, those with chlorides salts are the most promising for such applications.
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Affiliation(s)
| | | | | | - Jacek Ulański
- Correspondence: (A.W.-P.); (J.U.); Tel.: +48-42-631-32-05 (A.W.-P.)
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Effect of Metal-Ligand Coordination Complexes on Molecular Dynamics and Structure of Cross-Linked Poly(dimethylosiloxane). Polymers (Basel) 2020; 12:polym12081680. [PMID: 32731499 PMCID: PMC7465896 DOI: 10.3390/polym12081680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022] Open
Abstract
Poly(dimethylosiloxane) (PDMS) cross-linked by metal-ligand coordination has a potential functionality for electronic devices applications. In this work, the molecular dynamics of bipyridine (bpy)–PDMS-MeCl2 (Me: Mn2+, Fe2+, Ni2+, and Zn2+) are investigated by means of broadband dielectric spectroscopy and supported by differential scanning calorimetry and density functional theory calculations. The study of molecular motions covered a broad range of temperatures and frequencies and was performed for the first time for metal-ligand cross-linked PDMS. It was found that the incorporation of bpy moieties into PDMS chain prevents its crystallization. The dielectric permittivity of studied organometallic systems was elevated and almost two times higher (ε′ ~4 at 1 MHz) than in neat PDMS. BpyPDMS-MeCl2 complexes exhibit slightly higher glass transition temperature and fragility as compared to a neat PDMS. Two segmental type relaxations (α and αac) were observed in dielectric studies, and their origin was discussed in relation to the molecular structure of investigated complexes. The αac relaxation was observed for the first time in amorphous metal-ligand complexes. It originates from the lower mobility of PDMS polymer chains, which are immobilized by metal-ligand coordination centers via bipyridine moieties.
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Dzhardimalieva GI, Yadav BC, Singh S, Uflyand IE. Self-healing and shape memory metallopolymers: state-of-the-art and future perspectives. Dalton Trans 2020; 49:3042-3087. [DOI: 10.1039/c9dt04360h] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent achievements and problems associated with the use of metallopolymers as self-healing and shape memory materials are presented and evaluated.
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Affiliation(s)
- Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers
- The Institute of Problems of Chemical Physics RAS
- Chernogolovka
- 142432 Russian Federation
| | - Bal C. Yadav
- Nanomaterials and Sensors Research Laboratory
- Department of Physics
- Babasaheb Bhimrao Ambedkar University
- Lucknow-226025
- India
| | - Shakti Singh
- Nanomaterials and Sensors Research Laboratory
- Department of Physics
- Babasaheb Bhimrao Ambedkar University
- Lucknow-226025
- India
| | - Igor E. Uflyand
- Department of Chemistry
- Southern Federal University
- Rostov-on-Don
- 344006 Russian Federation
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Wu X, Huang J, Yu S, Ruan P, Sun R, Wong CP. Thermally Self-Healable Titanium Dioxide/Polyurethane Nanocomposites with Recoverable Mechanical and Dielectric Properties. Macromol Res 2019. [DOI: 10.1007/s13233-020-8049-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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