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Liu W, Yang X, Yan G, Wang L, Lai J, Li Z, Zhao C, Xiang D, Li H, Wu Y. Super-Flexible Water-Proof Actuators. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400482. [PMID: 38534165 DOI: 10.1002/smll.202400482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/07/2024] [Indexed: 03/28/2024]
Abstract
Humidity-responsive materials hold broad application prospects in sensing, energy production, and other fields. Particularly, humidity-sensitive, flexibility, and water resistance are pivotal factors in the development of optimized humidity-responsive materials. In this study, hydrophobic linear polyurethane and hydrophilic 4-vinylphenylboronic acid (4-VPBA) form a semi-intercross cross-linking network. This copolymer of polyurethane exhibits excellent humidity-sensitive, mechanical properties, and water resistance. Its maximum tensile strength and maximum elongation can reach 40.56 MPa and 543.47%, respectively. After being immersed in water at various temperatures for 15 days, it exhibited a swelling ratio of only 3.28% in water at 5 °C and 9.58% in water at 70 °C. While the presence of 4-VPBA network imparts humidity-sensitive, reversible, and multidirectional bending abilities, under the stimulus of water vapor, it can bend 43° within 1.4 s. The demonstrated material surpasses current bidirectional humidity actuators in actuating ability. Based on these characteristics, automatically opening waterproof umbrellas and windows, as well as bionic-arms, crawling robots, and self-propelled boats, are successfully developed.
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Affiliation(s)
- Wei Liu
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Xi Yang
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Guilong Yan
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Li Wang
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Jingjuan Lai
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Zhenyu Li
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Chunxia Zhao
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Dong Xiang
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Hui Li
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Yuanpeng Wu
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
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2
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Rehman HU, Hedenqvist MS, Chen Y, Guo Y, Li H, Liu H. Stretchable, Strong, Recyclable Helicide Elastomer Based on Dynamic Covalent Interactions. ACS APPLIED MATERIALS & INTERFACES 2023; 15:46280-46291. [PMID: 37729208 DOI: 10.1021/acsami.3c08329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Current methods for making and disposing synthetic polymers have been widely pursued and are largely unsustainable. As a part of the solution, the reversible nature of dynamic covalent bonds emerges as an extraordinarily diverse and valuable feature in the development of exotic molecules and extended structures. With these bonds, it should be possible to construct recyclable and mechanically interlocked molecular structures using relatively simple precursors with preorganized geometries. A new helicide-based elastomer network is developed here with self-healing, recycling, and degradation features using a similar concept. The best self-healing performance (100%) was noted over 10-20 min, with various H2O, HCl, and NaOH solutions that delivered mechanical properties in the 1-1.4 MPa range. For hydrolytic degradation, the parameters are defined based on the type of binding, the pH of the solutions, and the copolymer network, which endowed a degradation time of approximately 4-11 h for each prepared sample. However, due to the reversible nature of the dynamic bonds, the material showed good recyclable mechanical properties compared to the pristine samples after five consecutive cycles, which meet the requirements of recyclable materials and recyclable packaging.
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Affiliation(s)
- Hafeez Ur Rehman
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- Department of Physics, The University of Lahore, 1-KM Defense Road, Lahore 54000, Pakistan
| | - Mikael S Hedenqvist
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Yujie Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yutong Guo
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Hua Li
- Collaborative Innovation Centre for Advanced Ship and Dee-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Hezhou Liu
- Collaborative Innovation Centre for Advanced Ship and Dee-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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3
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Ding Y, Hu X, Piao Y, Huang R, Xie L, Yan X, Sun H, Li Y, Shi L, Liu Y. Lipid Prodrug Nanoassemblies via Dynamic Covalent Boronates. ACS NANO 2023; 17:6601-6614. [PMID: 36999933 DOI: 10.1021/acsnano.2c12233] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Prodrug nanoassemblies combine the advantages of prodrug and nanomedicines, offering great potential in targeting the lesion sites and specific on-demand drug release, maximizing the therapeutic performance while minimizing their side effects. However, there is still lacking a facile pathway to prepare the lipid prodrug nanoassemblies (LPNAs). Herein, we report the LPNAs via the dynamic covalent boronate between catechol and boronic acid. The resulting LPNAs possess properties like drug loading in a dynamic covalent manner, charge reversal in an acidic microenvironment, and specific drug release at an acidic and/or oxidative microenvironment. Our methodology enables the encapsulation and delivery of three model drugs: ciprofloxacin, bortezomib, and miconazole. Moreover, the LPNAs are often more efficient in eradicating pathogens or cancer cells than their free counterparts, both in vitro and in vivo. Together, our LPNAs with intriguing properties may boost the development of drug delivery and facilitate their clinical applications.
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Affiliation(s)
- Yuxun Ding
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
| | - Xiaowen Hu
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinzi Piao
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rong Huang
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lingping Xie
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xiaojian Yan
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Hui Sun
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanfeng Li
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yong Liu
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
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4
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Saad MA, Sakr MAS, Saroka VA, Abdelsalam H. Chemically modified covalent organic frameworks for a healthy and sustainable environment: First-principles study. CHEMOSPHERE 2022; 308:136581. [PMID: 36162514 DOI: 10.1016/j.chemosphere.2022.136581] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Pure water is a key element for a sustainable and healthy environment of human inhabitation. Since major sources of water contamination are industrially generated heavy metal cations there is great demand for efficient methods of their treatment. Here, using density functional theory, we investigate the covalent organic framework's electronic and optical properties and their interaction with the most dangerous heavy metal pollutants, namely Hg+2, Pb+2, and Cd+2. We consider biphenyl boroxine covalent organic frameworks before and after chemical modification with CN, COOH, NH2, and NO2 groups. In addition to the molecular geometries, such parameters as the dipole moment, chemical potential, electronegativity, chemical hardness, and binding energy are calculated. It is found that CN, COOH, and NO2 functional groups are favorable for intermolecular bonding with harmful transition metals. The functionalization with the mentioned groups reduces the band gap of the pristine covalent organic frameworks and increases their reactivity. As a result, strong complexes with Cd+2, Hg+2, and Pb+2 can form, which, as follows from our calculations, can be detected by the red shift in their optical absorption spectra.
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Affiliation(s)
- Mohamed A Saad
- Center of Basic Science (CBS), Misr University of Science and Technology (MUST), 6th October City, Egypt.
| | - Mahmoud A S Sakr
- Center of Basic Science (CBS), Misr University of Science and Technology (MUST), 6th October City, Egypt.
| | - Vasil A Saroka
- TBpack Ltd., 27 Old Gloucester Street, London, WC1N 3AX, United Kingdom; Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220030, Minsk, Belarus
| | - Hazem Abdelsalam
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, PR China; Theoretical Physics Department, National Research Centre, El-Buhouth Str., 12622, Dokki, Giza, Egypt
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5
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Drozdov FV, Manokhina EA, Vu TD, Muzafarov AM. Polyborosiloxanes (PBS): Evolution of Approaches to the Synthesis and the Prospects of Their Application. Polymers (Basel) 2022; 14:polym14224824. [PMID: 36432951 PMCID: PMC9696069 DOI: 10.3390/polym14224824] [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: 10/05/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 11/12/2022] Open
Abstract
The mini-review deals with borosiloxanes as a class of organoelement compounds that comprise Si-O-B bonds, including individual compounds and polymeric structures. The borosiloxanes first synthesized in the 1950s using simple methods demonstrated very unusual properties but were hydrolytically unstable. However, in recent times, synthetic methods have changed significantly, which made it possible to synthesize borosiloxanes that are resistant to external factors, including atmospheric moisture. Borosiloxanes became important due to their unique properties. For example, borosiloxane liquids acquire a thixotropic behavior due to donor-acceptor interchain interactions. In addition, borosiloxanes are used to produce flame-retardant ceramics. An analysis of the literature sources shows that no review has yet been completed on the topic of borosiloxanes. Therefore, we decided that even a brief outlook of this area would be useful for researchers in this and related fields. Thus, the review shows the evolution of the synthesis methods and covers the studies on the properties of these unique molecules, the latest achievements in this field, and the prospects for their application.
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Affiliation(s)
- Fedor V. Drozdov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
- Correspondence:
| | - Elizaveta A. Manokhina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Tran D. Vu
- Institute of Tropical Durability, Joint Russia-Vietnam Tropical Science and Technology, Hanoi 122103, Vietnam
| | - Aziz M. Muzafarov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
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6
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He C, Dong J, Xu C, Pan X. N-Coordinated Organoboron in Polymer Synthesis and Material Science. ACS POLYMERS AU 2022. [DOI: 10.1021/acspolymersau.2c00046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Congze He
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jin Dong
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Chaoran Xu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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7
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Liu W, Huang J, Gong Z, Fan J, Chen Y. Healable, recyclable and mechanically robust elastomers with multiple dynamic cross-linking bonds. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124900] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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8
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Debiais M, Vasseur JJ, Smietana M. Applications of the Reversible Boronic Acids/Boronate Switch to Nucleic Acids. CHEM REC 2022; 22:e202200085. [PMID: 35641415 DOI: 10.1002/tcr.202200085] [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: 04/13/2022] [Revised: 05/16/2022] [Indexed: 11/09/2022]
Abstract
Over the last decades, boron and nucleic acids chemistries have gained a lot of attention for biological, medicinal and analytical applications. Our laboratory has a long-standing interest in both chemistries and owing to the ability of boronic acids to react with cis-diol function in aqueous media we developed over the years a variety of applications ranging from molecular recognition and sensing to the development of reversible dynamic systems in which the natural phosphodiester linkage was replaced by a boronate. In this account, we summarize research results from our group from our preliminary studies on molecular recognition of ribonucleosides to the dynamic assembly of functional DNAzymes. In particular, the various parameters influencing the dynamic nature of these reversible covalent bonds able to respond to external stimuli are discussed. Finally, current challenges and opportunities for boron-based nucleic acids are also addressed.
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Affiliation(s)
- Mégane Debiais
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, 1919 route de Mende, 34095, Montpellier, France
| | - Jean-Jacques Vasseur
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, 1919 route de Mende, 34095, Montpellier, France
| | - Michael Smietana
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, 1919 route de Mende, 34095, Montpellier, France
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9
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Takahashi A, Yamanishi M, Kameyama A. Lewis Adduct-Dissociating Hydrolysis of Boratrane for Water-Triggered Dehydration of Copolymers with a Hydrophobic Moiety. ACS Macro Lett 2022; 11:766-771. [PMID: 35622979 DOI: 10.1021/acsmacrolett.2c00161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
As a new example of intrinsically water-triggered phenomena, we report underwater dehydration of the statistical copolymers synthesized from triethanolamine borate (TEAB) methacrylate and styrene (St) induced by the hydrolysis of the pendant TEAB group. TEAB possesses high polarity owing to its internal Lewis adduct structure, which is lost by hydrolysis to triethanolamine (TEA) with a lower dipole moment. Therefore, the hydration of the copolymers became unfavorable through the hydrolysis of the pendant TEAB to TEA, despite polyol formation, and through a hydrophobic interaction based on St moieties becoming alternatively dominant. The dehydration behavior of the copolymers, along with the hydrolysis of the pendant TEAB group, was systematically investigated. The water solubility of the copolymers was found to be dependent on the gradient of the hydrolysis equilibrium of TEAB on the side chains and was the lowest for the TEA state. These findings offer a novel concept toward designing water-responsive materials.
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Affiliation(s)
- Akira Takahashi
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 221-8686, Japan
| | - Masahiro Yamanishi
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 221-8686, Japan
| | - Atsushi Kameyama
- Department of Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 221-8686, Japan
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10
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Boronic Acid Esters and Anhydrates as Dynamic Cross-Links in Vitrimers. Polymers (Basel) 2022; 14:polym14040842. [PMID: 35215755 PMCID: PMC8962972 DOI: 10.3390/polym14040842] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/12/2022] [Accepted: 02/14/2022] [Indexed: 12/02/2022] Open
Abstract
Growing environmental awareness imposes on polymer scientists the development of novel materials that show a longer lifetime and that can be easily recycled. These challenges were largely met by vitrimers, a new class of polymers that merges properties of thermoplastics and thermosets. This is achieved by the incorporation of dynamic covalent bonds into the polymer structure, which provides high stability at the service temperature, but enables the processing at elevated temperatures. Numerous types of dynamic covalent bonds have been utilized for the synthesis of vitrimers. Amongst them, boronic acid-based linkages, namely boronic acid esters and boroxines, are distinguished by their quick exchange kinetics and the possibility of easy application in various polymer systems, from commercial thermoplastics to low molecular weight thermosetting resins. This review covers the development of dynamic cross-links. This review is aimed at providing the state of the art in the utilization of boronic species for the synthesis of covalent adaptable networks. We mainly focus on the synthetic aspects of boronic linkages-based vitrimers construction. Finally, the challenges and future perspectives are provided.
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11
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Harders P, Griebenow T, Businski A, Kaus AJ, Pietsch L, Näther C, McConnell A. The Dynamic Covalent Chemistry of Amidoboronates: Tuning the rac5/rac6 Ratio via the B‑N and B‐O Dynamic Covalent Bonds. Chempluschem 2022; 87:e202200022. [DOI: 10.1002/cplu.202200022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/07/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Patrick Harders
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Thomas Griebenow
- Christian Albrechts Universität zu Kiel: Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Artjom Businski
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Anton J. Kaus
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Lorenz Pietsch
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Christian Näther
- Christian-Albrechts-Universitat zu Kiel Institute of Inorganic Chemistry GERMANY
| | - Anna McConnell
- Kiel University Institute of Organic Chemistry Otto-Hahn-Platz 4 24098 Kiel GERMANY
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12
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Goyal S, Cochran EW. Cyanate ester composites to improve thermal performance: A review. POLYM INT 2022. [DOI: 10.1002/pi.6373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shailja Goyal
- Chemical and Biological Engineering Department Iowa State University Ames
| | - Eric W. Cochran
- Chemical and Biological Engineering Department Iowa State University Ames
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13
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Gulyuz S, Yagci Y, Kiskan B. Exploiting the Reversible Covalent Bonding of Boronic Acids for Self-Healing/Recycling of Main-Chain Polybenzoxazines. Polym Chem 2022. [DOI: 10.1039/d2py00068g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a new strategy for the synthesis of self-healable/recyable polybenzoxazine networks under mild conditions, by exploiting dynamic B–O bond exchanges is presented. The process is based on mixing...
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14
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Chatterjee S, Tripathi NM, Bandyopadhyay A. The modern role of boron as a 'magic element' in biomedical science: chemistry perspective. Chem Commun (Camb) 2021; 57:13629-13640. [PMID: 34846393 DOI: 10.1039/d1cc05481c] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Boron was misconstrued as a toxic element for animals, which retarded the growth of boron-containing drug discovery in the last century. Nevertheless, modern applications of boronic acid derivatives are attractive in biomedical applications after the declaration that boron is a 'probable essential element' for humans by the WHO. Additionally, the approval of five boronic acid-containing drugs by the FDA has vastly impacted the use of boron in medicinal chemistry, chemical biology, drug delivery, biomaterial exploration, pharmacological improvements, and nutrition. This review article focuses on the chemistries attributed to boronic acids at physiological pH, enticing chemists to multidisciplinary applications. Prospective uses of boronic acid in pharma and chemical biology, along with prospects and challenges, are also part of the deliberation. Understanding these fundamental chemistries and interactions of boronic acid in biological systems will enable solving future challenges in drug discovery and executing space-age applications.
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Affiliation(s)
- Saurav Chatterjee
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Punjab, 140001, India.
| | - Nitesh Mani Tripathi
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Punjab, 140001, India.
| | - Anupam Bandyopadhyay
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Punjab, 140001, India.
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15
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Lungu R, Anisiei A, Rosca I, Sandu AI, Ailincai D, Marin L. Double functionalization of chitosan based nanofibers towards biomaterials for wound healing. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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16
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17
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Groleau RR, James TD, Bull SD. The Bull-James assembly: Efficient iminoboronate complex formation for chiral derivatization and supramolecular assembly. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213599] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Huang LCS, Le D, Hsiao IL, Fritsch-Decker S, Hald C, Huang SC, Chen JK, Hwu JR, Weiss C, Hsu MH, Delaittre G. Boron-rich, cytocompatible block copolymer nanoparticles by polymerization-induced self-assembly. Polym Chem 2021. [DOI: 10.1039/d0py00710b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A new methacrylic boronate ester is synthesized and exploited to produce biocompatible nanoparticles with a boron-rich core by PISA.
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19
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Song K, Ye W, Gao X, Fang H, Zhang Y, Zhang Q, Li X, Yang S, Wei H, Ding Y. Synergy between dynamic covalent boronic ester and boron-nitrogen coordination: strategy for self-healing polyurethane elastomers at room temperature with unprecedented mechanical properties. MATERIALS HORIZONS 2021; 8:216-223. [PMID: 34821300 DOI: 10.1039/d0mh01142h] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Achieving mechanical robustness and highly efficient self-healing simultaneously at room temperature is always a formidable challenge for polymeric materials. Herein, a series of novel supramolecular polyurethane elastomers (SPUEs) are developed by incorporating dynamic covalent boronic ester and boron-nitrogen (B-N) coordination. The SPUEs demonstrate the highest tensile toughness (∼182.2 MJ m-3) to date for room-temperature self-healable polymers, as well as an excellent ultimate tensile strength (∼10.5 MPa) and ultra-high fracture energy (∼72 100 J m-2), respectively, owing to a synergetic quadruple dynamic mechanism. It is revealed that the B-N coordination not only facilitates the formation and dissociation of boronic ester at room temperature but also dramatically enhances the mechanical properties by the intermolecular coordinated chain crosslinking and intramolecular coordinated chain folding. Meanwhile, the B-N coordination and urethane hydrogen interaction also serve as sacrificial bonds, which rupture during stretching to dissipate energy and recover after release, leading to superior notch insensitiveness and recoverability. The SPUEs restore their mechanical robustness after self-healing at room temperature and the self-healing efficiency can be dramatically accelerated by surface wetting.
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Affiliation(s)
- Kai Song
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, China.
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Chatterjee S, Anslyn EV, Bandyopadhyay A. Boronic acid based dynamic click chemistry: recent advances and emergent applications. Chem Sci 2020; 12:1585-1599. [PMID: 34163920 PMCID: PMC8179052 DOI: 10.1039/d0sc05009a] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/27/2020] [Indexed: 11/28/2022] Open
Abstract
Recently, reversible click reactions have found numerous applications in chemical biology, supramolecular chemistry, and biomedical applications. Boronic acid (BA)-mediated cis-diol conjugation is one of the best-studied reactions among them. An excellent understanding of the chemical properties and biocompatibility of BA-based compounds has inspired the exploration of novel chemistries using boron to fuel emergent sciences. This topical review focuses on the recent progress of iminoboronate and salicylhydroxamic-boronate constituted reversible click chemistries in the past decade. We highlight the mechanism of reversible kinetics and its applications in chemical biology, medicinal chemistry, biomedical devices, and material chemistry. This article also emphasizes the fundamental reactivity of these two conjugate chemistries with assorted nucleophiles at variable pHs, which is of utmost importance to any stimuli-responsive biological and material chemistry explorations.
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Affiliation(s)
- Saurav Chatterjee
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Ropar Punjab-781039 India
| | - Eric V Anslyn
- Department of Chemistry, University of Texas 1 University Station A1590 Austin Texas 78712 USA
| | - Anupam Bandyopadhyay
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Ropar Punjab-781039 India
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21
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Yang X, Guo M, Wu Y, Xue S, Li Z, Zhou H, Smith AT, Sun L. Biomimetic Boroxine-Based Multifunctional Thermosets via One-Pot Synthesis. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56445-56453. [PMID: 33327055 DOI: 10.1021/acsami.0c16736] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Boroxine-based thermosets with remarkable mechanical tunability, self-healing ability, recyclability, and adhesive strength are of significant importance in various applications. However, complex multistep reactions are often required to prepare such thermosets. Herein, a facile one-pot approach to synthesize boroxine-based malleable thermosets is proposed. Random copolymers with pendant boronic acid groups were synthesized from alkenyl monomers containing boronic acids [4-vinylphenylboronic acid (4-VPBA), 3-vinylphenylboronic acid, or 3-acrylamidophenylboronic acid] and octadecanoxy polyethylene glycol methacrylate. Then, the as-prepared copolymers were cured to form thermosets with boroxine bonds. The tensile strengths of the thermosets were tailored to range from 9.3 to 27.5 MPa by increasing the concentration of 4-VPBA. Moreover, because of the reversible nature of dynamic boroxine bonds (transformation between boroxines and boronic acids) induced by water, the thermosets exhibit remarkable self-healing efficiency (up to 99%), tunable mechanical properties, and excellent recyclability. Additionally, the thermosets also demonstrate superior adhesive strength (as high as 73.9 MPa) on different substrates.
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Affiliation(s)
- Xi Yang
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Meiling Guo
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Yuanpeng Wu
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, Sichuan, China
| | - Shishan Xue
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Zhenyu Li
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
| | - Hongwei Zhou
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Andrew T Smith
- Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Luyi Sun
- Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
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22
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Yang Y, Huang L, Wu R, Fan W, Dai Q, He J, Bai C. Assembling of Reprocessable Polybutadiene-Based Vitrimers with High Strength and Shape Memory via Catalyst-Free Imine-Coordinated Boroxine. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33305-33314. [PMID: 32586088 DOI: 10.1021/acsami.0c09712] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Vitrimers endow cross-linked polymers with malleability and reprocessability via exchange reactions. However, designing of reprocessable, shape-memory polymer materials with high strength via a catalyst-free method remains a challenge under mild conditions. Here, we propose a facile strategy to address this dilemma by introducing the exchangeable imine bond and N-coordinated boroxine into a polybutadiene (PB)-based network. Specifically, PB grafted with 2-aminoethanethiol is reacted with the formyl group of phenylboronic acid and dehydrated to form a dual-dynamic covalently cross-linked network at room temperature. The dynamic network draws on the advantage of imine (toughness) and N-coordinated boroxine (strength), making the PB-based materials exhibit favorable malleability, mechanical property, reprocessability, and thermal-induced shape-memory behavior. We can obtain customized high mechanical properties by tuning the cross-linking density, and the tensile strength reaches a high value (12.35 MPa) without fillers or any other additives. Meanwhile, the unique network framework makes the material recycle over several times without sacrificing its property. This work presents a facile and effective approach to achieve a multifunctional polymer with customized attributes. Besides, this strategy can recycle end-of-life rubber to alleviate environmental pollution and provide inspiration for fabricating targeted materials by uniting the dynamic covalent or noncovalent bonds.
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Affiliation(s)
- Yinxin Yang
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Lingyun Huang
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Ruiyao Wu
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Weifeng Fan
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Quanquan Dai
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Jianyun He
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chenxi Bai
- Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
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23
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Willocq B, Odent J, Dubois P, Raquez JM. Advances in intrinsic self-healing polyurethanes and related composites. RSC Adv 2020; 10:13766-13782. [PMID: 35492994 PMCID: PMC9051554 DOI: 10.1039/d0ra01394c] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 03/20/2020] [Indexed: 11/25/2022] Open
Abstract
Fascinating and challenging, the development of repairable materials with long-lasting, sustainable and high-performance properties is a key-parameter to provide new advanced materials. To date, the concept of self-healing includes capsule-based healing systems, vascular healing systems, and intrinsic healing systems. Polyurethanes have emerged as a promising class of polymeric materials in this context due to their ease of synthesis and their outstanding properties. This review thereby focuses on the current research and developments in intrinsic self-healing polyurethanes and related composites. The chronological development of such advanced materials as well as the different strategies employed to confer living-like healing properties are discussed. Particular attention will be paid on chemical reactions utilized for self-healing purposes. Potential applications, challenges and future prospects in self-healing polyurethane fields are also provided.
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Affiliation(s)
- Bertrand Willocq
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS) Place du Parc 20 7000 Mons Belgium
| | - Jérémy Odent
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS) Place du Parc 20 7000 Mons Belgium
| | - Philippe Dubois
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS) Place du Parc 20 7000 Mons Belgium
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons (UMONS) Place du Parc 20 7000 Mons Belgium
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24
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Willocq B, Khelifa F, Odent J, Lemaur V, Yang Y, Leclère P, Cornil J, Dubois P, Urban MW, Raquez JM. Mechanistic Insights on Spontaneous Moisture-Driven Healing of Urea-Based Polyurethanes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46176-46182. [PMID: 31736297 DOI: 10.1021/acsami.9b16858] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-healing polymeric materials that can spontaneously repair in a perpetual manner are highly appealing to address safety and restoration issues in different key applications. Usually built from reversible moieties that require to be activated using, for example, temperature, light, or pH changes, most of these self-healing materials rely on energy-demanding processes and/or external interventions to promote self-healing. In this work, we propose to exploit rapid dynamic exchanges between urea-based moieties and moisture as an alternative to promote local and spontaneous healing responses to damage using atmospheric moisture as an external stimulus. Non-hygroscopic urea-based polyurethanes with repetitive moisture-induced healing abilities at different degrees of humidity were thus designed through coupling reactions with non-hygroscopic polypropylene glycol and urea moieties. As supported by density functional theory (DFT) calculations coupled to local FTIR experimental studies, we furthermore established that the healing mechanism is ultimately related to the formation of water-urea clusters. Obviously, this work represents a platform for designing more advanced spontaneous self-healing materials beyond the present study, which hold promise for use in a wide range of technological applications.
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Affiliation(s)
| | | | | | | | - Ying Yang
- Department of Materials Science and Engineering and Center for Optical Materials Science and Engineering Technologies (COMSET) , Clemson University , P-4-19, Anderson , South Carolina 29634 , United States
| | | | | | | | - Marek W Urban
- Department of Materials Science and Engineering and Center for Optical Materials Science and Engineering Technologies (COMSET) , Clemson University , P-4-19, Anderson , South Carolina 29634 , United States
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25
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Guo H, Fang X, Zhang L, Sun J. Facile Fabrication of Room-Temperature Self-Healing, Mechanically Robust, Highly Stretchable, and Tough Polymers Using Dual Dynamic Cross-Linked Polymer Complexes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33356-33363. [PMID: 31414790 DOI: 10.1021/acsami.9b11166] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of polymeric materials with a combination of excellent mechanical performance and room-temperature self-healing property is still a huge challenge. Here, we report a facile method for the fabrication of dual dynamic cross-linked polymer complexes that simultaneously possess multiple remarkable mechanical properties and room-temperature self-healability by simply mixing polymers that have complementary interactions in solutions. Thanks to the synergistic effects of electrostatic and hydrogen-bonding interactions within their networks, the complexes obtained a superhigh tensile strength of 27.4 MPa and toughness of 110.0 MJ/m3 when compared with other polymers that can self-heal at room temperature. More importantly, the complexes can repair a physical cut in an ∼90% relative humid environment at room temperature with a high healing efficiency of ∼96% because of the dynamic nature of the noncovalent interactions. This method is a simple, low-cost, and widely applicable strategy for the large-scale fabrication of room-temperature self-healing materials that possess superior and controllable mechanical performances.
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Affiliation(s)
- Haiyun Guo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Xu Fang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Ling Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Junqi Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
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26
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Cai ZF, Zhan G, Daukiya L, Eyley S, Thielemans W, Severin K, De Feyter S. Electric-Field-Mediated Reversible Transformation between Supramolecular Networks and Covalent Organic Frameworks. J Am Chem Soc 2019; 141:11404-11408. [DOI: 10.1021/jacs.9b05265] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Zhen-Feng Cai
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Gaolei Zhan
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Lakshya Daukiya
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Samuel Eyley
- Department of Chemical Engineering, Renewable Materials and Nanotechnology Group, Campus Kortrijk, KU Leuven, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Wim Thielemans
- Department of Chemical Engineering, Renewable Materials and Nanotechnology Group, Campus Kortrijk, KU Leuven, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Steven De Feyter
- Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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27
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Yuan D, Delpierre S, Ke K, Raquez JM, Dubois P, Manas-Zloczower I. Biomimetic Water-Responsive Self-Healing Epoxy with Tunable Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17853-17862. [PMID: 30998311 DOI: 10.1021/acsami.9b04249] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
As dynamic cross-linking networks are intrinsically weaker than permanent covalent networks, it is a big challenge to obtain a stiff self-healing polymer using reversible networks. Inspired by the self-healable and mechanically adaptive nature of sea cucumber, we design a water-responsive self-healing polymer system with reversible and permanent covalent networks by cross-linking poly(propylene glycol) with boroxine and epoxy. This double cross-linked structure is self-healing due to the boroxine reversible network as well as showing a room-temperature tensile modulus of 1059 MPa and a tensile stress of 37 MPa, on a par with classic thermosets. The dynamic boroxine bonds provide the self-healing response and enable up to 80% recovery in modulus and tensile strength upon water contact. The system shows superior adhesion to metal substrates by comparison with the commercial epoxy-based structural adhesive. Besides, this system can change modulus from a stiff thermoset to soft rubber (by a factor of 150) upon water stimulus, enabling potential applications of either direct or transform printing for micro/nanofabrication. Moreover, by incorporating conductive nanofillers, it becomes feasible to fabricate self-healing and versatile strain/stress sensors based on a single thermoset, with potential applications in wearable electronics for human healthcare.
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Affiliation(s)
- Dian Yuan
- Department of Macromolecular Science and Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - Sébastien Delpierre
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP) , University of Mons , Place du Parc 23 , 7000 Mons , Belgium
| | - Kai Ke
- Department of Macromolecular Science and Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP) , University of Mons , Place du Parc 23 , 7000 Mons , Belgium
| | - Philippe Dubois
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP) , University of Mons , Place du Parc 23 , 7000 Mons , Belgium
| | - Ica Manas-Zloczower
- Department of Macromolecular Science and Engineering , Case Western Reserve University , Cleveland , Ohio 44106 , United States
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28
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Bao C, Guo Z, Sun H, Sun J. Nitrogen-Coordinated Boroxines Enable the Fabrication of Mechanically Robust Supramolecular Thermosets Capable of Healing and Recycling under Mild Conditions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9478-9486. [PMID: 30742407 DOI: 10.1021/acsami.9b00006] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The fabrication of mechanically robust polymeric materials capable of self-healing and recycling remains challenging because the mobility of polymer chains in such polymers is very limited. In this work, mechanically robust supramolecular thermosets capable of healing physical damages and recycling under mild conditions are fabricated by trimerization of bi-( ortho-aminomethyl-phenylboronic acid)- and tri-( ortho-aminomethyl-phenylboronic acid)-terminated poly(propylene glycol) oligomers (denoted as Bi-PBA-PPG and Tri-PBA-PPG, respectively). The resultant supramolecular thermosets are cross-linked by dynamic covalent bonds of nitrogen-coordinated boroxines. The mechanical properties of the supramolecular thermosets can be systematically tailored by varying the ratios between Tri-PBA-PPG and Bi-PBA-PPG, which changes the cross-linking density of nitrogen-coordinated boroxines and the topology of the supramolecular thermosets. The mechanically strongest supramolecular thermosets with a molar ratio of Tri-PBA-PPG to Bi-PBA-PPG being 1:2 have a glass transition temperature of ∼36 °C, a tensile strength of ∼31.96 MPa, and a Young's modulus of ∼298.5 MPa. The high reversibility of nitrogen-coordinated boroxines and the flexibility of poly(propylene glycol) chains enable the supramolecular thermosets with the strongest mechanical strength to be highly efficiently healed at 55 °C and recycled under a pressure of 4 MPa at 60 °C to regain their original mechanical strength and integrity.
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Affiliation(s)
- Chunyang Bao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Zhiwei Guo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Haoxiang Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Junqi Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
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29
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Nakagawa S, Nakai S, Matsuoka K, Yoshie N. Alcohol-assisted self-healing network polymer based on vicinal tricarbonyl chemistry. POLYMER 2019. [DOI: 10.1016/j.polymer.2018.11.061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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30
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Gozdalik JT, Adamczyk-Woźniak A, Sporzyński A. Influence of fluorine substituents on the properties of phenylboronic compounds. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-1009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Abstract
Rapid development of research on the chemistry of boronic acids is connected with their applications in organic synthesis, analytical chemistry, materials’ chemistry, biology and medicine. In many applications Lewis acidity of boron atoms plays an important role. Special group of arylboronic acids are fluoro-substituted compounds, in which the electron withdrawing character of fluorine atoms influences their properties. The present paper deals with fluoro-substituted boronic acids and their derivatives: esters, benzoxaboroles and boroxines. Properties of these compounds, i.e. acidity, hydrolytic stability, structures in crystals and in solution as well as spectroscopic properties are discussed. In the next part examples of important applications are given.
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Affiliation(s)
- Jan T. Gozdalik
- Faculty of Chemistry, Warsaw University of Technology , Noakowskiego 3 , 00-664 Warsaw , Poland
| | | | - Andrzej Sporzyński
- Faculty of Chemistry, Warsaw University of Technology , Noakowskiego 3 , 00-664 Warsaw , Poland
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