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Dynamic and structural studies on synergetic energy dissipation mechanisms of single-, double-, and triple-network hydrogels sequentially crosslinked by multiple non-covalent interactions. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Su R, Xia L, Li G, Xiao X. A controlled recognizing and releasing glycoprotein based on temperature-responsive phenylboronic microgels for colorimetric analysis of complex samples. Talanta 2022; 241:123260. [DOI: 10.1016/j.talanta.2022.123260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/15/2022] [Accepted: 01/22/2022] [Indexed: 02/07/2023]
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3
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Zhang H, An L, Wang X, Niu C, Hou X. A colorless, transparent and mechanically robust polyurethane elastomer: synthesis, chemical resistance and adhesive properties. NEW J CHEM 2022. [DOI: 10.1039/d1nj05874f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this work, a transparent, mechanically strong and chemically resistant XDI-PUE adhesive was fabricated, which exhibited a remarkable tensile stress of 21.0 MPa with a break strain of 1608%. XDI-PUE also showed good chemical resistance towards toluene and NaOH aqueous solution.
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Affiliation(s)
- Huijuan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Li An
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Xue Wang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Chao Niu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Xinjuan Hou
- CAS Key Laboratory of Green Process and Engineering, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100090, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Hwang BS, Kim JS, Kim JM, Shim TS. Thermogelling Behaviors of Aqueous Poly(N-Isopropylacrylamide-co-2-Hydroxyethyl Methacrylate) Microgel-Silica Nanoparticle Composite Dispersions. MATERIALS 2021; 14:ma14051212. [PMID: 33806664 PMCID: PMC7961736 DOI: 10.3390/ma14051212] [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: 01/25/2021] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 11/16/2022]
Abstract
Gelation behaviors of hydrogels have provided an outlook for the development of stimuli-responsive functional materials. Of these materials, the thermogelling behavior of poly(N-isopropylacrylamide) (p(NiPAm))-based microgels exhibits a unique, reverse sol–gel transition by bulk aggregation of microgels at the lower critical solution temperature (LCST). Despite its unique phase transition behaviors, the application of this material has been largely limited to the biomedical field, and the bulk gelation behavior of microgels in the presence of colloidal additives is still open for scrutinization. Here, we provide an in-depth investigation of the unique thermogelling behaviors of p(NiPAm)-based microgels through poly(N-isopropylacrylamide-co-2-hydroxyethyl methacrylate) microgel (p(NiPAm-co-HEMA))–silica nanoparticle composite to expand the application possibilities of the microgel system. Thermogelling behaviors of p(NiPAm-co-HEMA) microgel with different molar ratios of N-isopropylacrylamide (NiPAm) and 2-hydroxyethyl methacrylate (HEMA), their colloidal stability under various microgel concentrations, and the ionic strength of these aqueous solutions were investigated. In addition, sol–gel transition behaviors of various p(NiPAm-co-HEMA) microgel systems were compared by analyzing their rheological properties. Finally, we incorporated silica nanoparticles to the microgel system and investigated the thermogelling behaviors of the microgel–nanoparticle composite system. The composite system exhibited consistent thermogelling behaviors in moderate conditions, which was confirmed by an optical microscope. The composite demonstrated enhanced mechanical strength at gel state, which was confirmed by analyzing rheological properties.
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Affiliation(s)
- Byung Soo Hwang
- Department of Chemical Engineering, Ajou University, Suwon 16499, Korea;
| | - Jong Sik Kim
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea;
| | - Ju Min Kim
- Department of Chemical Engineering, Ajou University, Suwon 16499, Korea;
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea;
- Correspondence: (J.M.K.); (T.S.S.)
| | - Tae Soup Shim
- Department of Chemical Engineering, Ajou University, Suwon 16499, Korea;
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea;
- Correspondence: (J.M.K.); (T.S.S.)
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Wang B, Xiao X, Zhang Y, Liao L. High strength dual-crosslinked hydrogels with photo-switchable color changing behavior. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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6
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Means AK, Grunlan MA. Modern Strategies To Achieve Tissue-Mimetic, Mechanically Robust Hydrogels. ACS Macro Lett 2019; 8:705-713. [PMID: 33912358 PMCID: PMC8077972 DOI: 10.1021/acsmacrolett.9b00276] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogels are frequently used biomaterials due to their similarity in hydration and structure to biological tissues. However, their utility is limited by poor mechanical properties, namely, a lack of strength and stiffness that mimic that of tissues, particularly load-bearing tissues. Thus, numerous recent strategies have sought to enhance and tune these properties in hydrogels, including interpenetrating networks (IPNs), macromolecular cross-linking, composites, thermal conditioning, polyampholytes, and dual cross-linking. Individually, these approaches have achieved hydrogels with either high strength (σ f > 10 MPa), high stiffness (E > 1 MPa), or, less commonly, both high strength and stiffness (σ f > 10 MPa and E > 1 MPa). However, only certain unique combinations of these approaches have been able to synergistically achieve retention of a high, tissuelike water content as well as high strength and stiffness. Applying such methods to stimuli-responsive hydrogels has also produced robust, smart biomaterials. Overall, methods to achieve hydrogels that simultaneously mimic the hydration, strength, and stiffness of soft and load-bearing tissues have the potential to be used in a much broader range of biomedical applications.
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Affiliation(s)
- A. Kristen Means
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
| | - Melissa A. Grunlan
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3120, United States
- Center for Remote Health Technologies Systems, Texas A&M University, College Station, Texas 77843-3120, United States
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Zhang H, Cheng Y, Hou X, Yang B, Guo F. Ionic effects on the mechanical and swelling properties of a poly(acrylic acid/acrylamide) double crosslinking hydrogel. NEW J CHEM 2018. [DOI: 10.1039/c8nj00920a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A P(AA/AM)–Fe(NO3)3 double crosslinking gel showed a superior tensile strength of 1471 kPa compared to those of all other metal salts tested, which was demonstrated by molecular simulation to result from the stronger hydrogen bonding in this metal–(COO)n complex.
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Affiliation(s)
- Huijuan Zhang
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Yuran Cheng
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Xinjuan Hou
- Key Laboratory for Green Process and Engineering
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process and Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Biao Yang
- School of Material and Mechanical Engineering
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Fang Guo
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
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Wen G, Guo Z, Liu W. Biomimetic polymeric superhydrophobic surfaces and nanostructures: from fabrication to applications. NANOSCALE 2017; 9:3338-3366. [PMID: 28244533 DOI: 10.1039/c7nr00096k] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Numerous research studies have contributed to the development of mature superhydrophobic systems. The fabrication and applications of polymeric superhydrophobic surfaces have been discussed and these have attracted tremendous attention over the past few years due to their excellent properties. In general, roughness and chemical composition, the two most crucial factors with respect to surface wetting, provide the basic criteria for yielding polymeric superhydrophobic materials. Furthermore, with their unique properties and flexible configurations, polymers have been one of the most efficient materials for fabricating superhydrophobic materials. This review aims to summarize the most recent progress in polymeric superhydrophobic surfaces. Significantly, the fundamental theories for designing these materials will be presented, and the original methods will be introduced, followed by a summary of multifunctional superhydrophobic polymers and their applications. The principles of these methods can be divided into two categories: the first involves adding nanoparticles to a low surface energy polymer, and the other involves combining a low surface energy material with a textured surface, followed by chemical modification. Notably, surface-initiated radical polymerization is a versatile method for a variety of vinyl monomers, resulting in controlled molecular weights and low polydispersities. The surfaces produced by these methods not only possess superhydrophobicity but also have many applications, such as self-cleaning, self-healing, anti-icing, anti-bioadhesion, oil-water separation, and even superamphiphobic surfaces. Interestingly, the combination of responsive materials and roughness enhances the responsiveness, which allows the achievement of intelligent transformation between superhydrophobicity and superhydrophilicity. Nevertheless, surfaces with poor physical and chemical properties are generally unable to withstand the severe conditions of the outside world; thus, it is necessary to optimize the performances of such materials to yield durable superhydrophobic surfaces. To sum up, some challenges and perspectives regarding the future research and development of polymeric superhydrophobic surfaces are presented.
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Affiliation(s)
- Gang Wen
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China and State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
| | - ZhiGuang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China and State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
| | - Weimin Liu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
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