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Crosslinked reprocessable phosphor/polyurethane composite networks with thermal induced self-healing capacity and ultraviolet conducted fluorescence effect. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Yasar M, Oktay B, Dal Yontem F, Haciosmanoglu Aldogan E, Kayaman Apohan N. Development of Self-Healing Vanillin/PEI Hydrogels for Tissue Engineering. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Ge S, Wang E, Li J, Tang BZ. Aggregation-Induced Emission Boosting the Study of Polymer Science. Macromol Rapid Commun 2022; 43:e2200080. [PMID: 35320607 DOI: 10.1002/marc.202200080] [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: 01/29/2022] [Revised: 03/09/2022] [Indexed: 11/07/2022]
Abstract
The past one hundred years witness the great development of polymer science. The advancement of polymer science is closely related with the developing of characterization techniques and methods, from viscometry in molecular weight determination to advanced techniques including differential scanning calorimetry, nuclear magnetic resonance and scanning electron microscopy. However, these techniques are normally constrained to tedious sample preparation, high cost, harsh experimental condition, or ex-situ characterization. Fluorescence technology has the merits of high sensitivity and direct visualization. Contrary to conventional aggregation-causing quenching fluorophores, those dyes with aggregation-induced emission characteristic show high emission efficiency in aggregate states. Based on the restriction of intramolecular motions for AIE properties, the AIE materials are very sensitive to the surrounding microenvironments owing to the twisted propeller-like structures and therefore reveal great potentials in polymer's study. The AIE concept has been successfully used in polymer's study and provides us a deeper understanding on polymer structure and properties. In this review, the applications of AIEgens in polymer science for visualizing polymerization, glass transition, dissolution, crystallization, gelation, self-assembly, phase separation, cracking and self-healing were exemplified and summarized. Lastly, the challenges and perspectives in the study of polymer science using AIEgens are addressed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Sheng Ge
- S. Ge, Dr. E. Wang, Prof. J. Li, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang District, Wuhan, 430062, China
| | - Erjing Wang
- S. Ge, Dr. E. Wang, Prof. J. Li, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang District, Wuhan, 430062, China
| | - Jinhua Li
- S. Ge, Dr. E. Wang, Prof. J. Li, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang District, Wuhan, 430062, China
| | - Ben Zhong Tang
- Prof. B. Z. Tang, Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, No. 2001 Longxiang Boulevard, Longgang District, Shenzhen, Guangdong, 518172, China
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Microcapsule-Type Self-Healing Protective Coating That Can Maintain Its Healed State upon Crack Expansion. MATERIALS 2021; 14:ma14206198. [PMID: 34683788 PMCID: PMC8539965 DOI: 10.3390/ma14206198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/03/2021] [Accepted: 10/15/2021] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to develop a microcapsule-type self-healing coating system that could self-heal cracks and then maintain the healed state even upon crack expansion. Mixtures consisting of a photoinitiator and two methacrylate components, bismethacryloxypropyl-terminated polydimethylsiloxane (BMT-PDMS) and monomethacryloxypropyl-terminated PDMS (MMT-PDMS), were transformed into viscoelastic semi-solids through photoreaction. The viscoelasticity of the reacted mixtures could be controlled by varying the mass ratio of the two methacrylates. Through a stretchability test, the optimal composition mixture was chosen as a healing agent. Microcapsules loaded with the healing agent were prepared and dispersed in a commercial undercoating to obtain a self-healing coating formulation. The formulation was applied onto mortar specimens, and then cracks were generated in the coating by using a universal testing machine (UTM). Cracks with around a 150-μm mean width were generated and were allowed to self-heal under UV light. Then, the cracks were expanded up to 650 μm in width. By conducting a water sorptivity test at each expanded crack width, the self-healing efficiency and capability of maintaining the healed state were evaluated. The B-M-1.5-1-based coating showed a healing efficiency of 90% at a 150-μm crack width and maintained its healing efficiency (about 80%) up to a 350-μm crack width. This self-healing coating system is promising for the protection of structural materials that can undergo crack formation and expansion.
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Calvino C. Polymer-Based Mechanochromic Composite Material Using Encapsulated Systems. Macromol Rapid Commun 2020; 42:e2000549. [PMID: 33270318 DOI: 10.1002/marc.202000549] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/10/2020] [Indexed: 01/09/2023]
Abstract
The development of mechanochromic or self-reporting polymers that can indicate damage or fatigue of materials with an optical signal has become of paramount interest to ensure the reliability of the materials and prevent catastrophic failure. This technology can potentially find usefulness for various applications, including in situ monitoring of mechanical events and structural health monitoring systems. An emerging and versatile approach to achieve mechanochromic properties relies on the encapsulation of dye solutions that can be released and activated (chemically or physically) when the walls of the capsules are mechanically damaged. While the mechanochromic effect can be achieved with different types of dyes and operating principles, this framework can also be designed with encapsulating-containers of different shapes and shell materials, such as microcapsules, hollow glass fibers, vascular networks, and micelles, making this concept applicable to a broad range of polymer matrices. An overview of the different encapsulation approaches that have been employed to prepare mechanochromic polymers is given, with a focus on the containers used for this purpose. A brief description of the containers' preparation is provided, and their associated chromic operating principles and progress in their designs are reviewed.
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Affiliation(s)
- Céline Calvino
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S. Ellis Ave., Chicago, IL, 60637, USA
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Xue Y, Li C, Liu J, Tan J, Su Z, Yang Y, Zhang G, Zhang Q. Fabrication and characterization of hierarchical microcapsules with multi-storage cells for repeatable self-healing. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125201] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Palazzo I, Raimondo M, Della Porta G, Guadagno L, Reverchon E. Encapsulation of health-monitoring agent in poly-methyl-methacrylate microcapsules using supercritical emulsion extraction. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.07.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Feng H, Yu F, Zhou Y, Li M, Xiao L, Ao Y. Fabrication of microcapsule-type composites with the capability of underwater self-healing and damage visualization. RSC Adv 2020; 10:33675-33682. [PMID: 35519072 PMCID: PMC9056752 DOI: 10.1039/d0ra03197f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 08/11/2020] [Indexed: 12/29/2022] Open
Abstract
Inspired by biology, underwater self-healing polymer composites with damage-healing visible agents were successfully designed and prepared. The healing agents, same as epoxy resin matrices, were encapsulated and embedded into a matrix that contained fluorescent latent curing agents. The results of investigation on healing properties revealed that the fluorescent latent curing agents and the microcapsules in the matrix play two roles. First, the matrix could be self-healed via a crosslinking reaction between the amine group and epoxy resin, in which the amine group could be released from the fluorescent latent curing agents (FLCAs) after exposure to water. Second, the fluorescent dyes released under water could indicate the scratches and healing area visually. Embedding 15 mass% microcapsules and 6 mass% FLCAs in self-healing materials yielded a healing efficiency of 85.6% and the most efficient fluorescence detection. Self-healing materials can be repaired underwater and they show the location of damage, which is of great significance in applications such as water conservation engineering, environmental treatment engineering, ship engineering and ocean engineering.
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Affiliation(s)
- Hengyu Feng
- College of Chemistry and Life Science, Key Laboratory of Carbon Fiber Development and Application, Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 Jilin Province People's Republic of China +86-431-88499187 +86-431-85716471
| | - Fei Yu
- College of Chemistry and Life Science, Key Laboratory of Carbon Fiber Development and Application, Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 Jilin Province People's Republic of China +86-431-88499187 +86-431-85716471
| | - Yu Zhou
- College of Chemistry and Life Science, Key Laboratory of Carbon Fiber Development and Application, Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 Jilin Province People's Republic of China +86-431-88499187 +86-431-85716471
| | - Ming Li
- College of Chemistry and Life Science, Key Laboratory of Carbon Fiber Development and Application, Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 Jilin Province People's Republic of China +86-431-88499187 +86-431-85716471
| | - Linghan Xiao
- College of Chemistry and Life Science, Key Laboratory of Carbon Fiber Development and Application, Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 Jilin Province People's Republic of China +86-431-88499187 +86-431-85716471
| | - Yuhui Ao
- College of Chemistry and Life Science, Key Laboratory of Carbon Fiber Development and Application, Advanced Institute of Materials Science, Changchun University of Technology Changchun 130012 Jilin Province People's Republic of China +86-431-88499187 +86-431-85716471
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