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Cai Y, Wang Y, Long L, Zhou S, Yan L, Zhang J, Zou H. Fabrication of Highly Thermally Resistant and Self-Healing Polysiloxane Elastomers by Constructing Covalent and Reversible Networks. Macromol Rapid Commun 2023; 44:e2300191. [PMID: 37329201 DOI: 10.1002/marc.202300191] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/14/2023] [Indexed: 06/18/2023]
Abstract
The fabrication of self-healing elastomers with high thermal stability for use in extreme thermal conditions such as aerospace remains a major challenge. A strategy for preparing self-healing elastomers with stable covalent bonds and dynamic metal-ligand coordination interactions as crosslinking sites in polydimethylsiloxane (PDMS) is proposed. The added Fe (III) not only serves as the dynamic crosslinking point at room temperature which is crucial for self-healing performance, but also plays a role as free radical scavenging agent at high temperatures. The results show that the PDMS elastomers possessed an initial thermal degradation temperature over 380 °C and a room temperature self-healing efficiency as high as 65.7%. Moreover, the char residue at 800 °C of PDMS elastomer reaches 7.19% in nitrogen atmosphere, and up to 14.02% in air atmosphere by doping a small amount (i.e., 0.3 wt%) of Fe (III), which is remarkable for the self-healing elastomers that contain weak and dynamic bonds with relatively poor thermal stability. This study provides an insight into designing self-healing PDMS-based materials that can be targeted for use as high-temperature thermal protection coatings.
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Affiliation(s)
- Yuanbo Cai
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
| | - Yuan Wang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
| | - Lu Long
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
| | - Shengtai Zhou
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
| | - Liwei Yan
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
| | - Junhua Zhang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
| | - Huawei Zou
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610065, China
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2
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Lu RQ, Concellón A, Wang P, Swager TM, Hsieh AJ. Supramolecular hierarchical polyurethane elastomers for thermal and mechanical property optimization. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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3
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Hosseinzadeh B, Ahmadi M. Coordination geometry in metallo-supramolecular polymer networks. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Kim EE, Kononevich YN, Dyuzhikova YS, Ionov DS, Khanin DA, Nikiforova GG, Shchegolikhina OI, Vasil’ev VG, Muzafarov AM. Cross-Linked Luminescent Polymers Based on β-Diketone-Modified Polysiloxanes and Organoeuropiumsiloxanes. Polymers (Basel) 2022; 14:polym14132554. [PMID: 35808598 PMCID: PMC9269094 DOI: 10.3390/polym14132554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 01/23/2023] Open
Abstract
Nowadays, luminescent materials attract wide attention due to their valuable characteristics and broad area of potential application. Luminescent silicone-based polymers possess unique properties, such as flexibility, hydrophobicity, thermal and chemical stabilities, etc., which allow them to be utilized in various fields, such as optoelectronics, solid-state lasers, luminescent solar concentrators, sensors, and others. In the present work, a metal-ligand interaction approach was applied to obtain new cross-linked luminescent polymers based on multiligand polysiloxanes with grafted β-diketone fragments and organoeuropiumsiloxanes containing various organic substituents. Organoeuropiumsiloxanes were utilized as a source of Eu3+ ions due to their compatibility with the silicon matrix. All synthesized polymers were fully characterized and their physicochemical, mechanical, self-healing, optical, and thermal properties were studied.
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Affiliation(s)
- Eleonora E. Kim
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
| | - Yuriy N. Kononevich
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
- Correspondence: (Y.N.K.); (A.M.M.)
| | - Yulia S. Dyuzhikova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
| | - Dmitry S. Ionov
- Photochemistry Center, FSRC “Crystallography and Photonics”, Russian Academy of Sciences, 119421 Moscow, Russia;
| | - Dmitry A. Khanin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
| | - Galina G. Nikiforova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
| | - Olga I. Shchegolikhina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
| | - Viktor G. Vasil’ev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
| | - Aziz M. Muzafarov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia; (E.E.K.); (Y.S.D.); (D.A.K.); (G.G.N.); (O.I.S.); (V.G.V.)
- N.S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
- Correspondence: (Y.N.K.); (A.M.M.)
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5
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Huang QS, Zhao PC, Lai JC, Zhang XP, Li CH. A healable, re-cyclable and thermochromic epoxy resin for thermal-responsive smart windows. Polym Chem 2022. [DOI: 10.1039/d1py01657a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Traditional thermoset polymers such as epoxy resin have strong mechanical strength, but are difficult to recycle, reshape and reprocess after being cured. When these materials are damaged, they can only...
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6
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Kuo SY, Chen PC, Huang KT, Huang CJ. Bio-inspired zwitterionic polymeric chelating assembly for treatment of copper-induced cytotoxicity and hemolysis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112367. [PMID: 34579886 DOI: 10.1016/j.msec.2021.112367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/04/2021] [Accepted: 08/09/2021] [Indexed: 11/18/2022]
Abstract
We developed a hemocompatible, bio-inspired, multivalent, polymeric-chelating assembly based on the poly(2-methacryloyloxyethyl phosphorylcholine)-b-poly(serinyl acrylate) (PMPC-b-PserA) zwitterionic diblock copolymer. Functional PMPC-b-PserA was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization to catch and encapsulate free copper ions (Cu2+) in a solution. PMPC with an identical polar group to phospholipids exhibits high hydrophilicity and fouling resistance against non-specific adsorption, and inertness to the metal ions. On the other hand, PserA with pendant groups of amino acids possesses a strong capability to react with Cu2+ by coordination interaction. Therefore, when PMPC-b-PserA was brought into contact with Cu2+, a hydrophobic core with multiple coordination "bridges" between polymers and Cu2+ was formed, leading to self-assembly of core-shell polymer-metal nanoparticles. As a result, free Cu2+ ions can be removed from the solution to prevent damage to cells and tissues. The synthesis and chemical structure of PMPC-b-PserA were characterized, and the formation of self-assembled polymer-Cu2+ nanoparticles and colloidal stability were analyzed. More importantly, the detoxification of PMPC-b-PserA in presence of Cu2+ with fibroblast cells was demonstrated by increased cell viability >80%. In addition, the hemolysis, which occurred due to disruption of RBC membranes by free Cu2+, was effectively suppressed by adding PMPC-b-PserA. The bio-inspired and biocompatible chelating agent of PMPC-b-PserA provides a new treatment approach to encapsulate and detoxify heavy metals in complex media for chelation therapy.
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Affiliation(s)
- Shing-Yu Kuo
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Pin-Chun Chen
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Kang-Ting Huang
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan; Department of Chemical & Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Chun-Jen Huang
- Department of Chemical & Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan; R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung Pei Rd., Chung-Li City 32023, Taiwan; NCU-DSM Research Center, National Central University, Jhong-Li, Taoyuan 320, Taiwan.
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7
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Fan J, Huang J, Gong Z, Cao L, Chen Y. Toward Robust, Tough, Self-Healable Supramolecular Elastomers for Potential Application in Flexible Substrates. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1135-1144. [PMID: 33372758 DOI: 10.1021/acsami.0c15552] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A robust, tough, and self-healable elastomer is a promising candidate for substrate in flexible electronic devices, but there is often a trade-off between mechanical properties (robustness and toughness) and self-healing. Here, a poly(dimethylsiloxane) (PDMS) supramolecular elastomer is developed based on metal-coordinated bonds with relatively high activation energy. The strong metal-coordination complexes and their corresponding ionic clusters acting as the cross-linking points strengthen the resultant supramolecular networks, which achieves superior mechanical robustness (2.81 MPa), and their consecutive dynamic rupture and reconstruction efficiently dissipate strain energy during the stretching process, which leads to an impressive fracture toughness (32 MJ/m3). Additionally, the reversible intermolecular interactions (weak hydrogen bonds and strong sacrificial coordination complexes/clusters) can break and re-form upon heating; thus, the elastomer self-heals at a moderate temperature with the highest healing efficiency of 95%. As such, the potential of the as-prepared supramolecular elastomer for a substrate material of flexible electronic devices is discovered.
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Affiliation(s)
- Jianfeng Fan
- Lab of Advanced Elastomer, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Jiarong Huang
- Lab of Advanced Elastomer, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Zhou Gong
- Lab of Advanced Elastomer, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Liming Cao
- Lab of Advanced Elastomer, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
| | - Yukun Chen
- Lab of Advanced Elastomer, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640, China
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8
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Zhang L, Wang D, Xu L, Zhang A. A supramolecular polymer with ultra-stretchable, notch-insensitive, rapid self-healing and adhesive properties. Polym Chem 2021. [DOI: 10.1039/d0py01536a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Supramolecular elastomers, possessing excellent mechanical, reusable adhesivity, and rapid self-healing properties, are essential for use in various applications.
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Affiliation(s)
- Lun Zhang
- State Key Laboratory of Polymers Materials Engineering of China
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
| | - Dong Wang
- State Key Laboratory of Polymers Materials Engineering of China
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
| | - Liqiang Xu
- State Key Laboratory of Polymers Materials Engineering of China
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
| | - Aimin Zhang
- State Key Laboratory of Polymers Materials Engineering of China
- Polymer Research Institute of Sichuan University
- Chengdu 610065
- China
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9
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Zhao PC, Li W, Huang W, Li CH. A Self-Healing Polymer with Fast Elastic Recovery upon Stretching. Molecules 2020; 25:E597. [PMID: 32019143 PMCID: PMC7037885 DOI: 10.3390/molecules25030597] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/09/2020] [Accepted: 01/19/2020] [Indexed: 11/21/2022] Open
Abstract
The design of polymers that exhibit both good elasticity and self-healing properties is a highly challenging task. In spite of this, the literature reports highly stretchable self-healing polymers, but most of them exhibit slow elastic recovery behavior, i.e., they can only recover to their original length upon relaxation for a long time after stretching. Herein, a self-healing polymer with a fast elastic recovery property is demonstrated. We used 4-[tris(4-formylphenyl)methyl]benzaldehyde (TFPM) as a tetratopic linker to crosslink a poly(dimethylsiloxane) backbone, and obtained a self-healing polymer with high stretchability and fast elastic recovery upon stretching. The strain at break of the as-prepared polymer is observed at about 1400%. The polymer can immediately recover to its original length after being stretched. The damaged sample can be healed at room temperature with a healing efficiency up to 93% within 1 h. Such a polymer can be used for various applications, such as functioning as substrates or matrixes in soft actuators, electronic skins, biochips, and biosensors with prolonged lifetimes.
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Affiliation(s)
- Pei-Chen Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China (W.L.)
| | - Wen Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China (W.L.)
| | - Wei Huang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China (W.L.)
- Shenzhen Research Institute of Nanjing University, Shenzhen 518057, China
| | - Cheng-Hui Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China (W.L.)
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10
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Dzhardimalieva GI, Yadav BC, Singh S, Uflyand IE. Self-healing and shape memory metallopolymers: state-of-the-art and future perspectives. Dalton Trans 2020; 49:3042-3087. [DOI: 10.1039/c9dt04360h] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent achievements and problems associated with the use of metallopolymers as self-healing and shape memory materials are presented and evaluated.
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Affiliation(s)
- Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers
- The Institute of Problems of Chemical Physics RAS
- Chernogolovka
- 142432 Russian Federation
| | - Bal C. Yadav
- Nanomaterials and Sensors Research Laboratory
- Department of Physics
- Babasaheb Bhimrao Ambedkar University
- Lucknow-226025
- India
| | - Shakti Singh
- Nanomaterials and Sensors Research Laboratory
- Department of Physics
- Babasaheb Bhimrao Ambedkar University
- Lucknow-226025
- India
| | - Igor E. Uflyand
- Department of Chemistry
- Southern Federal University
- Rostov-on-Don
- 344006 Russian Federation
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11
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Stein S, Mordvinkin A, Voit B, Komber H, Saalwächter K, Böhme F. Self-healing and reprocessable bromo butylrubber based on combined ionic cluster formation and hydrogen bonding. Polym Chem 2020. [DOI: 10.1039/c9py01630a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The properties of modified bromobutyl rubber are strongly influenced by competing interactions via hydrogen bridges and ionic cluster formation. Dynamic network formation enables self-healing and reprocessability of the material.
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Affiliation(s)
- Sebastian Stein
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
- Organische Chemie der Polymere
- Technische Universität Dresden
| | - Anton Mordvinkin
- Martin-Luther-Universität Halle-Wittenberg
- Institut für Physik – NMR
- 06120 Halle (Saale)
- Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
- Organische Chemie der Polymere
- Technische Universität Dresden
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | - Kay Saalwächter
- Martin-Luther-Universität Halle-Wittenberg
- Institut für Physik – NMR
- 06120 Halle (Saale)
- Germany
| | - Frank Böhme
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
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12
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Zhou J, Wang L, Li L, Feng S. Novel clickable and fluorescent poly(siloxane amine)s for reusable adhesives and reprocessable elastomers. Polym Chem 2020. [DOI: 10.1039/d0py00741b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of clickable and fluorescent poly(siloxane amine)s were firstly reported and used as dynamic adhesives and elastomers.
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Affiliation(s)
- Jie Zhou
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Linlin Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Lei Li
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
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13
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Tian M, Zuo H, Wang J, Ning N, Yu B, Zhang L. A silicone elastomer with optimized and tunable mechanical strength and self-healing ability based on strong and weak coordination bonds. Polym Chem 2020. [DOI: 10.1039/d0py00434k] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A self-healable silicone elastomer is fabricated based on the synergistic effect of strong and weak coordination bonds.
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Affiliation(s)
- Ming Tian
- State Key Laboratory of Organic Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
| | - Hongli Zuo
- State Key Laboratory of Organic Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jie Wang
- State Key Laboratory of Organic Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Nanying Ning
- State Key Laboratory of Organic Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
| | - Bing Yu
- State Key Laboratory of Organic Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
| | - Liqun Zhang
- State Key Laboratory of Organic Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
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14
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Lai HY, Wang HQ, Lai JC, Li CH. A Self-Healing and Shape Memory Polymer that Functions at Body Temperature. Molecules 2019; 24:E3224. [PMID: 31487954 PMCID: PMC6767172 DOI: 10.3390/molecules24183224] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/30/2019] [Accepted: 09/01/2019] [Indexed: 11/17/2022] Open
Abstract
Dual-functional polymeric system combining shape memory with self-healing properties has attracted increasingly interests of researchers, as both of these properties are intelligent and promising characteristics. Moreover, shape memory polymer that functions at human body temperature (37 °C) are desirable because of their potential applications in biomedical field. Herein, we designed a polymer network with a permanent covalent crosslinking and abundant weak hydrogen bonds. The former introduces elasticity responsible and maintain the permanent shape, and the latter contributes to the temporary shape via network rearrangement. The obtained PDMS-COO-E polymer films exhibit excellent mechanical properties and the capability to efficiently self-heal for 6 h at room temperature. Furthermore, the samples turn from a viscous state into an elastic state at 37 °C. Therefore, this polymer has shape memory effects triggered by body temperature. This unique material will have a wide range of applications in many fields, containing wearable electronics, biomedical devices, and 4D printing.
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Affiliation(s)
- Hui-Ying Lai
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Hong-Qin Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Jian-Cheng Lai
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Cheng-Hui Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.
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