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Gao G, Hara M, Seki T, Takeoka Y. Synthesis of thermo-responsive polymer gels composed of star-shaped block copolymers by copper-catalyzed living radical polymerization and click reaction. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2024; 25:2302795. [PMID: 38361532 PMCID: PMC10868426 DOI: 10.1080/14686996.2024.2302795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 12/30/2023] [Indexed: 02/17/2024]
Abstract
In recent times, there has been a significant surge in research interest surrounding thermo-responsive water-soluble polyacrylamides, primarily due to their intriguing capability to undergo significant solubility changes in water. These polymers exhibit the remarkable ability to shift from a soluble to an insoluble state in response to temperature variations. The capacity of these polymers to dynamically respond to temperature changes opens up exciting avenues for designing smart materials with tunable properties, amplifying their utility across a spectrum of scientific and technological applications. Researchers have been particularly captivated by the potential applications of thermo-responsive water-soluble polyacrylamides in diverse fields such as drug delivery, gene carriers, tissue engineering, sensors, catalysis, and chromatography separation. This study reports the construction and functionalization of polymer gels consisting of a polymer network of polyacrylamide derivatives with nano-sized structural units. Specifically, thermo-responsive polymer gels were synthesized by combining well-defined star-shaped polymers composed of polyacrylamide derivatives with a multifunctional initiator and linking method through a self-accelerating click reaction. The polymerization system employed a highly living approach, resulting in polymer chains characterized by narrow molecular weight distributions. The method's high functionality facilitated the synthesis of a temperature-responsive block copolymer gel composed of N-isopropyl acrylamide (NIPA) and N-ethyl acrylamide (NEAA). The resulting polymer gel, comprising star-shaped block copolymers of NIPA and NEAA, showcases smooth volume changes with temperature jumps.
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Affiliation(s)
- Guohao Gao
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Nagoya, Japan
| | - Mitsuo Hara
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Nagoya, Japan
| | - Takahiro Seki
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Nagoya, Japan
| | - Yukikazu Takeoka
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Nagoya, Japan
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Yu S, Li F, Fang S, Yin X, Wu S, Tang Z, Zhang L, Guo B. Extrudable Vitrimeric Rubbers Enabled via Heterogeneous Network Design. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Shuangjian Yu
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Fanzhu Li
- State Key Laboratory of Organic/Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shifeng Fang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaochun Yin
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
| | - Siwu Wu
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhenghai Tang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Liqun Zhang
- State Key Laboratory of Organic/Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Baochun Guo
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
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3
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Fang S, Wang J, Wu S, Yu S, Tang Z, Guo B. Heterogeneous network design strategy toward mechanically robust and recyclable elastomers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhang C, An X, Tang Z, Fang S, Guo B, Zhang L, Liu F, Liu J, Chen Z. Creation of Tortuosity in Unfilled Rubber via Heterogeneous Cross-Linking toward Improved Barrier Property. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chengfeng Zhang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Xinglong An
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Zhenghai Tang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Shifeng Fang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Baochun Guo
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Liqun Zhang
- State Key Laboratory of Organic/Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Fang Liu
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Junjie Liu
- Hubei Nuclear Solid Physics Key Laboratory, Department of Physics, Wuhan University, Wuhan 430072, P.R. China
| | - Zhiquan Chen
- Hubei Nuclear Solid Physics Key Laboratory, Department of Physics, Wuhan University, Wuhan 430072, P.R. China
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Yu WW, Xu WZ, Wei YC, Liao S, Luo MC. Mechanically Robust Elastomers Enabled by a Facile Interfacial Interactions-Driven Sacrificial Network. Macromol Rapid Commun 2021; 42:e2100509. [PMID: 34562290 DOI: 10.1002/marc.202100509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/11/2021] [Indexed: 11/08/2022]
Abstract
Strength and toughness are usually mutually exclusive for materials. The sacrificial bond strategy is used to address the trade-off between strength and toughness. However, the complex construction process of sacrificial network limits the application of sacrificial network. This work develops a facile strategy to construct an interfacial interactions-driven sacrificial network. The authors' group finds that there are the interfacial interactions between arginines (A) aggregates and molecular chains. Such interfacial interactions result in the mechanical properties of samples having a strong dependence on extension rates, which shows that A aggregates construct a network structure by interfacial interactions. The interfacial interactions between A aggregates and chains improve the strength of samples; while the A aggregate network driven by interfacial interactions preferentially ruptures to dissipate large energy for the improvement of fracture toughness, which can be considered as a sacrificial network. Therefore, their designed elastomers have both high strength and high toughness. This work provides an easier strategy for the construction of sacrificial networks, which can promote the industrial application of sacrificial networks in elastomer materials.
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Affiliation(s)
- Wei-Wei Yu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Wen-Zhe Xu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Yan-Chan Wei
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China
| | - Shuangquan Liao
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China.,Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing, 100029, China
| | - Ming-Chao Luo
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education, Natural Rubber Cooperative Innovation Center of Hainan Province and Ministry of Education of PRC, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China.,Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing, 100029, China
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6
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Recyclable, robust and shape memory vitrified polyisoprene composite prepared through a green methodology. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123864] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Kwon D, Jochi Y, Okaya Y, Seki T, Satoh K, Kamigaito M, Hoshino T, Urayama K, Takeoka Y. Nonturbid Fast Temperature-Responsive Hydrogels with Homogeneous Three-Dimensional Networks by Two Types of Star Polymer Synthesis Methods. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00446] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- DoWoo Kwon
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yuto Jochi
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yuumi Okaya
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Takahiro Seki
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kotaro Satoh
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Masami Kamigaito
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Taiki Hoshino
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-51982, Japan
| | - Kenji Urayama
- Department of Macromolecular Science & Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan
| | - Yukikazu Takeoka
- Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Takeoka Y, Liu S, Asai F. Improvement of mechanical properties of elastic materials by chemical methods. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2021; 21:817-832. [PMID: 33628120 PMCID: PMC7889095 DOI: 10.1080/14686996.2020.1849931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 06/12/2023]
Abstract
Elastomers such as gels and rubbers play various roles in our lives. Elastomers, which guarantee the safety of airplanes and automobiles and the stability of buildings, are materials that have made the lives of people in the twentieth century extremely convenient. The existence of macromolecules, that is, giant molecules, has been clarified; the development of synthetic macromolecules has progressed; and understanding of elastomers has progressed. By introducing new ideas, it has become possible to obtain tough and hard elastomers, which was difficult under conventional ideas. In this paper, we will explain the development from the classical theory of elastomers to current efforts.
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Affiliation(s)
- Yukikazu Takeoka
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Sizhe Liu
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Fumio Asai
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan
- Research & Development Center, Kyoto, Japan
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Hayashi M. Implantation of Recyclability and Healability into Cross-Linked Commercial Polymers by Applying the Vitrimer Concept. Polymers (Basel) 2020; 12:E1322. [PMID: 32531918 PMCID: PMC7362076 DOI: 10.3390/polym12061322] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 11/17/2022] Open
Abstract
Vitrimers are a new class of cross-linked materials that are capable of network topology alternation through the associative dynamic bond-exchange mechanism, which has recently been invented to solve the problem of conventional cross-linked materials, such as poor recyclability and healability. Thus far, the concept of vitrimers has been applied to various commercial polymers, e.g., polyesters, polylactides, polycarbonates, polydimethylsiloxanes, polydienes, polyurethanes, polyolefins, poly(meth)acrylates, and polystyrenes, by utilizing different compatible bond-exchange reactions. In this review article, the concept of vitrimers is described by clarifying the difference from thermoplastics and supramolecular systems; in addition, the term "associative bond-exchange" in vitrimers is explained by comparison with the "dissociative" term. Several useful functions attained by the vitrimer concept (including recyclability and healability) are demonstrated, and recent molecular designs of vitrimers are classified into groups depending on the types of molecular frameworks. This review specifically focuses on the vitrimer molecular designs with commercial polymer-based frameworks, which provide useful hints for the practical application of the vitrimer concept.
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Affiliation(s)
- Mikihiro Hayashi
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan
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