1
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da Silva MM, Proença MP, Covas JA, Paiva MC. Shape-Memory Polymers Based on Carbon Nanotube Composites. MICROMACHINES 2024; 15:748. [PMID: 38930718 PMCID: PMC11205355 DOI: 10.3390/mi15060748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024]
Abstract
For the past two decades, researchers have been exploring the potential benefits of combining shape-memory polymers (SMP) with carbon nanotubes (CNT). By incorporating CNT as reinforcement in SMP, they have aimed to enhance the mechanical properties and improve shape fixity. However, the remarkable intrinsic properties of CNT have also opened up new paths for actuation mechanisms, including electro- and photo-thermal responses. This opens up possibilities for developing soft actuators that could lead to technological advancements in areas such as tissue engineering and soft robotics. SMP/CNT composites offer numerous advantages, including fast actuation, remote control, performance in challenging environments, complex shape deformations, and multifunctionality. This review provides an in-depth overview of the research conducted over the past few years on the production of SMP/CNT composites with both thermoset and thermoplastic matrices, with a focus on the unique contributions of CNT to the nanocomposite's response to external stimuli.
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Affiliation(s)
- Mariana Martins da Silva
- Institute for Polymers and Composites, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (M.M.d.S.); (J.A.C.)
| | - Mariana Paiva Proença
- ISOM and Departamento de Electrónica Física, Universidad Politécnica de Madrid, Ava. Complutense 30, E-28040 Madrid, Spain;
| | - José António Covas
- Institute for Polymers and Composites, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (M.M.d.S.); (J.A.C.)
| | - Maria C. Paiva
- Institute for Polymers and Composites, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (M.M.d.S.); (J.A.C.)
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2
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Zhang G, Zhang Q, Guo Z, Li C, Ge F, Zhang Q. Reconfiguration, Welding, Reprogramming, and Complex Shape Transformation of An Optical Shape Memory Polymer Network Enabled by Patterned Secondary Crosslinking. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306312. [PMID: 37817361 DOI: 10.1002/smll.202306312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/03/2023] [Indexed: 10/12/2023]
Abstract
Stimuli-triggered generation of complicated 3D shapes from 2D strips or plates without using sophisticated molds is desirable and achieving such 2D-to-3D shape transformation in combination with shape reconfiguration, welding, and reprogramming on a single material is very challenging. Here, a convenient and facile strategy using the solution of a disulfide-containing diamine for patterned secondary crosslinking of an optical shape-memory polymer network is developed to integrate the above performances. The dangling thiolectones attached to the backbones react with the diamine in the solution-deposited region so that the secondary crosslinking may not only weld individual strips into assembled 3D shapes but also suppress the relaxation of the deformed polymer chains to different extents for shape reconfiguration or heating-induced complex 3D deformations. In addition, as the dynamic disulfide bonds can be thermally activated to erase the initial programming information and the excessive thiolectones are available for subsequent patterned crosslinking, the material also allows shape reprogramming. Combining welding with patterning treatment, it is further demonstrated that a gripper can be assembled and photothermally controlled to readily grasp an object.
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Affiliation(s)
- Guoxian Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Qing Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Zijian Guo
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Chunmei Li
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Feijie Ge
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
| | - Qiuyu Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, P. R. China
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3
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Wang W, Wang W, Liang Y, Du L, Yang H, Ma H, Cheng H, Yan Y, Shen Y, Chen Q. Advanced Stimuli-Responsive Structure Based on 4D Aerogel and Covalent Organic Frameworks Composite for Rapid Reduction in Tetracycline Pollution. Molecules 2023; 28:5505. [PMID: 37513377 PMCID: PMC10386521 DOI: 10.3390/molecules28145505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Intelligentization of materials and structures is an important trend. Herein, the stimuli-responsive 4D aerogel is used as a smart substrate for rapid reduction in tetracycline (TC) pollution, in which this smart stimuli-responsive substrate is designated as P4D. Its fourth dimension originates from stimuli-responsive characteristics with time evolution. Meanwhile, the covalent organic frameworks (COFs) composite is constructed by BiPO4 and triazine-based sp2 carbon-conjugated g-C18N3-COF (COF-1), which is another key aspect of COF-1/BiPO4@P4D for rapid photocatalytic degradation regarding TC pollution. This emerging smart structure of COFs@P4D can fix programmable temporary state and recover permanent state under thermal or water stimulus without any complicated equipment. Its performance can be tailored by structure, composition, and function. Compared with traditional powder-form photocatalysts, this stimuli-responsive structure provides attractive advantages, such as high permeable framework, self-adaptivity, flexibly customized functional groups, and fast reduction in TC pollution. The predictable development of COFs@P4D could draw much attention for various promising applications in pollution treatment and sensors.
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Affiliation(s)
- Wenxin Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Wenjing Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Ying Liang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Liwen Du
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Huan Yang
- School of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Haoxiang Ma
- Deep Sea Engineering Division, Institute of Deep Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China
| | - Huiting Cheng
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Yaqian Yan
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Yijun Shen
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
| | - Qi Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea, Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China
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4
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Alipour S, Pourjavadi A, Hosseini SH. Magnetite embedded κ-carrageenan-based double network nanocomposite hydrogel with two-way shape memory properties for flexible electronics and magnetic actuators. Carbohydr Polym 2023; 310:120610. [PMID: 36925232 DOI: 10.1016/j.carbpol.2023.120610] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
Shape memory hydrogels attract increasing attention as flexible strain sensors due to their shape recovery property that can improve the lifetime of the sensor. Herein, we have designed a magnetic shape memory hydrogel based on Fe3O4 nanoparticles, carrageenan, and poly (acrylamide-co-acrylic acid) with self-adhesive and conductive properties. The resulting double network hydrogel showed promising actuator and strain sensor applications. Electrical conductivity was observed in this hydrogel without using additional ions. The presence of magnetite nanoparticles increased the tensile strength and temporary shape fixity ratio to around 6.5 MPa and 94.3 %, respectively. The excellent cantilever and catheter-like behavior of the hydrogels were illustrated through magnetic routing by an external magnet. Also, these hydrogels demonstrated suitable performance in the 500 cycles strain sensing tests before and after their initial shape recovery.
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Affiliation(s)
- Sakineh Alipour
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Ali Pourjavadi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran.
| | - Seyed Hassan Hosseini
- Department of Chemical Engineering, University of Science and Technology of Mazandaran, Behshahr, Iran
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5
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Mat Yazik MH, Hameed Sultan MT, Jawaid M, Mazlan N, Abu Talib AR, Md Shah AU, Safri SNA. Shape memory properties of epoxy with hybrid multi-walled carbon nanotube and montmorillonite nanoclay nanofiller. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-023-04750-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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6
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Jayalath S, Herath M, Epaarachchi J, Trifoni E, Gdoutos EE, Fang L. Durability and long-term behaviour of shape memory polymers and composites for the space industry– A review of current status and future perspectives. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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7
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Mahmoud DB, Schulz-Siegmund M. Utilizing 4D Printing to Design Smart Gastroretentive, Esophageal, and Intravesical Drug Delivery Systems. Adv Healthc Mater 2022; 12:e2202631. [PMID: 36571721 DOI: 10.1002/adhm.202202631] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/16/2022] [Indexed: 12/27/2022]
Abstract
The breakthrough of 3D printing in biomedical research has paved the way for the next evolutionary step referred to as four dimensional (4D) printing. This new concept utilizes the time as the fourth dimension in addition to the x, y, and z axes with the idea to change the configuration of a printed construct with time usually in response to an external stimulus. This can be attained through the incorporation of smart materials or through a preset smart design. The 4D printed constructs may be designed to exhibit expandability, flexibility, self-folding, self-repair or deformability. This review focuses on 4D printed devices for gastroretentive, esophageal, and intravesical delivery. The currently unmet needs and challenges for these application sites are tried to be defined and reported on published solution concepts involving 4D printing. In addition, other promising application sites that may similarly benefit from 4D printing approaches such as tracheal and intrauterine drug delivery are proposed.
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Affiliation(s)
- Dina B Mahmoud
- Pharmaceutical Technology, Institute of Pharmacy, Faculty of Medicine, Leipzig University, 04317, Leipzig, Germany.,Department of Pharmaceutics, Egyptian Drug Authority, 12311, Giza, Egypt
| | - Michaela Schulz-Siegmund
- Pharmaceutical Technology, Institute of Pharmacy, Faculty of Medicine, Leipzig University, 04317, Leipzig, Germany
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8
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Sánchez CP, Jérôme C, Noels L, Vanderbemden P. Review of Thermoresponsive Electroactive and Magnetoactive Shape Memory Polymer Nanocomposites. ACS OMEGA 2022; 7:40701-40723. [PMID: 36406535 PMCID: PMC9670708 DOI: 10.1021/acsomega.2c05930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Electroactive and magnetoactive shape memory polymer nanocomposites (SMCs) are multistimuli-responsive smart materials that are of great interest in many research and industrial fields. In addition to thermoresponsive shape memory polymers, SMCs include nanofillers with suitable electric and/or magnetic properties that allow for alternative and remote methods of shape memory activation. This review discusses the state of the art on these electro- and magnetoactive SMCs and summarizes recently published investigations, together with relevant applications in several fields. Special attention is paid to the shape memory characteristics (shape fixity and shape recovery or recovery force) of these materials, as well as to the magnitude of the electric and magnetic fields required to trigger the shape memory characteristics.
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Affiliation(s)
- Clara Pereira Sánchez
- Department
of Electrical Engineering and Computer Science, University of Liège, Liège 4000, Belgium
| | | | - Ludovic Noels
- Department
of Aerospace and Mechanical Engineering, University of Liège, Liège 4000, Belgium
| | - Philippe Vanderbemden
- Department
of Electrical Engineering and Computer Science, University of Liège, Liège 4000, Belgium
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9
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Zhang F, Huang W, Zhang L, Liu X, Muhammad Y. Preparation and properties evaluation of shape memory epoxy asphalt composites with high toughness and damping. J Appl Polym Sci 2022. [DOI: 10.1002/app.53117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fenglei Zhang
- Intelligent Transportation System Research Center Southeast University Nanjing China
| | - Wei Huang
- Intelligent Transportation System Research Center Southeast University Nanjing China
| | - Lei Zhang
- Intelligent Transportation System Research Center Southeast University Nanjing China
| | - Xiaodong Liu
- Intelligent Transportation System Research Center Southeast University Nanjing China
- China Communications Highway Planning and Design Institute Co., Ltd. Beijing China
| | - Yaseen Muhammad
- Institute of Chemical Sciences University of Peshawar Peshawar Pakistan
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10
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Recent advances in shape memory superhydrophobic surfaces: Concepts, mechanism, classification, applications and challenges. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Li W, Liu J, Chen L, Wei W, Qian K, Liu Y, Leng J. Application and Development of Shape Memory Micro/Nano Patterns. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105958. [PMID: 35362270 DOI: 10.1002/smll.202105958] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/12/2021] [Indexed: 06/14/2023]
Abstract
Shape memory polymers (SMPs) are a class of smart materials that change shape when stimulated by environmental stimuli. Different from the shape memory effect at the macro level, the introduction of micro-patterning technology into SMPs strengthens the exploration of the shape memory effect at the micro/nano level. The emergence of shape memory micro/nano patterns provides a new direction for the future development of smart polymers, and their applications in the fields of biomedicine/textile/micro-optics/adhesives show huge potential. In this review, the authors introduce the types of shape memory micro/nano patterns, summarize the preparation methods, then explore the imminent and potential applications in various fields. In the end, their shortcomings and future development direction are also proposed.
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Affiliation(s)
- Wenbing Li
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Junhao Liu
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Lei Chen
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Wanting Wei
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Kun Qian
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Yanju Liu
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Jinsong Leng
- Centre for Composite Materials and Structures, Harbin Institute of Technology (HIT), Harbin, 150080, P. R. China
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12
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Chen N, Dong X, Ma Y. Evaluation on the Seal Performance of SMP-Based Packers in Oil Wells. Polymers (Basel) 2022; 14:polym14040836. [PMID: 35215747 PMCID: PMC8963099 DOI: 10.3390/polym14040836] [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: 01/11/2022] [Revised: 02/12/2022] [Accepted: 02/18/2022] [Indexed: 02/04/2023] Open
Abstract
Packers based on shape memory polymers (SMPs) are an emerging technology that have the advantages of compact structure, easy manufacture, and adaptability to complex wells. This paper proposes a finite element model to simulate the setting process and mechanical response of an SMP packer. The investigated material is an epoxy-based thermal responsive SMP, whose relaxation modulus and thermal expansion coefficient were measured at different temperatures. Based on the experimental data, the model describes the viscoelastic behavior of the SMP using the generalized Maxwell model. The results show that the SMP packer could provide sufficient contact stress under downhole conditions, even after the stress was relaxed. A further parametric study revealed that the most significant factor in sealing effects is the wellbore pressure, followed by the interference between the packer and the annular, the seal length, the pre-compression, and the setting temperature. High downhole pressures require more significant contact stress and increase the risk of slip between the packer and casing wall by promoting shear stress. Increasing the seal length and interference enhances the contact stress and mitigates the shear stress to improve the seal performance. Pre-compression and setting temperatures are minor factors that have little influence on sealability.
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Affiliation(s)
- Naihan Chen
- Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
| | - Xuelin Dong
- Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
- Correspondence:
| | - Yinji Ma
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;
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13
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Herath M, Emmanuel C, Jeewantha J, Epaarachchi J, Leng J. Distributed sensing based real‐time process monitoring of shape memory polymer components. J Appl Polym Sci 2022. [DOI: 10.1002/app.52247] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Madhubhashitha Herath
- Centre for Future Materials University of Southern Queensland Toowoomba Queensland Australia
- Department of Engineering Technology, Faculty of Technological Studies Uva Wellassa University Badulla Sri Lanka
| | - Chris Emmanuel
- Centre for Future Materials University of Southern Queensland Toowoomba Queensland Australia
- School of Mechanical and Electrical Engineering, Faculty of Health Engineering and Sciences University of Southern Queensland Toowoomba Queensland Australia
| | - Janitha Jeewantha
- Centre for Future Materials University of Southern Queensland Toowoomba Queensland Australia
- School of Mechanical and Electrical Engineering, Faculty of Health Engineering and Sciences University of Southern Queensland Toowoomba Queensland Australia
| | - Jayantha Epaarachchi
- Centre for Future Materials University of Southern Queensland Toowoomba Queensland Australia
- School of Mechanical and Electrical Engineering, Faculty of Health Engineering and Sciences University of Southern Queensland Toowoomba Queensland Australia
| | - Jinsong Leng
- Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
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14
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Cortés A, Pérez-Chao N, Jiménez-Suárez A, Campo M, Prolongo S. Sequential and selective shape memory by remote electrical control. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Influence of POSS Type on the Space Environment Durability of Epoxy-POSS Nanocomposites. NANOMATERIALS 2022; 12:nano12020257. [PMID: 35055274 PMCID: PMC8777868 DOI: 10.3390/nano12020257] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 11/17/2022]
Abstract
In order to use polymers at low Earth orbit (LEO) environment, they must be protected against atomic oxygen (AO) erosion. A promising protection strategy is to incorporate polyhedral oligomeric silsesquioxane (POSS) molecules into the polymer backbone. In this study, the space durability of epoxy-POSS (EPOSS) nanocomposites was investigated. Two types of POSS molecules were incorporated separately—amine-based and epoxy-based. The outgassing properties of the EPOSS, in terms of total mass loss, collected volatile condensable material, and water vapor regain were measured as a function of POSS type and content. The AO durability was studied using a ground-based AO simulation system. Surface compositions of EPOSS were studied using high-resolution scanning electron microscopy and X-ray photoelectron spectroscopy. It was found that with respect to the outgassing properties, only some of the EPOSS compositions were suitable for the ultrahigh vacuum space environment, and that the POSS type and content had a strong effect on their outgassing properties. Regardless of the POSS type being used, the AO durability improved significantly. This improvement is attributed to the formation of a self-passivated AO durable SiO2 layer, and demonstrates the potential use of EPOSS as a qualified nanocomposite for space applications.
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16
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17
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Kausar A. Shape memory polystyrene-based nanocomposite: present status and future opportunities. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1840919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center For Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
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18
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19
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Tekay E. Thermo‐responsive shape memory behavior of poly(styrene‐b‐isoprene‐b‐styrene)/ethylene‐1‐octene copolymer thermoplastic elastomer blends. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5139] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Emre Tekay
- Department of Polymer Materials Engineering Yalova University Yalova Turkey
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20
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Bram AI, Gouzman I, Bolker A, Eliaz N, Verker R. The Effect of POSS Type on the Shape Memory Properties of Epoxy-Based Nanocomposites. Molecules 2020; 25:molecules25184203. [PMID: 32937814 PMCID: PMC7571080 DOI: 10.3390/molecules25184203] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/09/2020] [Accepted: 09/09/2020] [Indexed: 11/16/2022] Open
Abstract
Thermally activated shape memory polymers (SMPs) can memorize a temporary shape at low temperature and return to their permanent shape at higher temperature. These materials can be used for light and compact space deployment mechanisms. The control of transition temperature and thermomechanical properties of epoxy-based SMPs can be done using functionalized polyhedral oligomeric silsesquioxane (POSS) additives, which are also known to improve the durability to atomic oxygen in the space environment. In this study, the influence of varying amounts of two types of POSS added to epoxy-based SMPs on the shape memory effect (SME) were studied. The first type contained amine groups, whereas the second type contained epoxide groups. The curing conditions were defined using differential scanning calorimetry and glass transition temperature (Tg) measurements. Thermomechanical and SME properties were characterized using dynamic mechanical analysis. It was found that SMPs containing amine-based POSS show higher Tg, better shape fixity and faster recovery speed, while SMPs containing epoxide-based POSS have higher crosslinking density and show superior thermomechanical properties above Tg. This work demonstrates how the Tg and SME of SMPs can be controlled by the type and amount of POSS in an epoxy-based SMP nanocomposite for future space applications.
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Affiliation(s)
- Avraham I. Bram
- Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel;
- Space Environment Department, Soreq Nuclear Research Center, Yavne 81800, Israel; (I.G.); (A.B.); (R.V.)
- Licensing & Safety Office, Israel Atomic Energy Commission, Tel Aviv P.O. Box 7061, Israel
- Correspondence: ; Tel.: +972-50-6239121
| | - Irina Gouzman
- Space Environment Department, Soreq Nuclear Research Center, Yavne 81800, Israel; (I.G.); (A.B.); (R.V.)
| | - Asaf Bolker
- Space Environment Department, Soreq Nuclear Research Center, Yavne 81800, Israel; (I.G.); (A.B.); (R.V.)
| | - Noam Eliaz
- Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel;
| | - Ronen Verker
- Space Environment Department, Soreq Nuclear Research Center, Yavne 81800, Israel; (I.G.); (A.B.); (R.V.)
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21
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Pishvar M, Harne RL. Foundations for Soft, Smart Matter by Active Mechanical Metamaterials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001384. [PMID: 32999844 PMCID: PMC7509744 DOI: 10.1002/advs.202001384] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/17/2020] [Indexed: 05/22/2023]
Abstract
Emerging interest to synthesize active, engineered matter suggests a future where smart material systems and structures operate autonomously around people, serving diverse roles in engineering, medical, and scientific applications. Similar to biological organisms, a realization of active, engineered matter necessitates functionality culminating from a combination of sensory and control mechanisms in a versatile material frame. Recently, metamaterial platforms with integrated sensing and control have been exploited, so that outstanding non-natural material behaviors are empowered by synergistic microstructures and controlled by smart materials and systems. This emerging body of science around active mechanical metamaterials offers a first glimpse at future foundations for autonomous engineered systems referred to here as soft, smart matter. Using natural inspirations, synergy across disciplines, and exploiting multiple length scales as well as multiple physics, researchers are devising compelling exemplars of actively controlled metamaterials, inspiring concepts for autonomous engineered matter. While scientific breakthroughs multiply in these fields, future technical challenges remain to be overcome to fulfill the vision of soft, smart matter. This Review surveys the intrinsically multidisciplinary body of science targeted to realize soft, smart matter via innovations in active mechanical metamaterials and proposes ongoing research targets that may deliver the promise of autonomous, engineered matter to full fruition.
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Affiliation(s)
- Maya Pishvar
- Department of Mechanical and Aerospace EngineeringThe Ohio State UniversityColumbusOH43210USA
| | - Ryan L. Harne
- Department of Mechanical and Aerospace EngineeringThe Ohio State UniversityColumbusOH43210USA
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Wang X, Wang Y, Wang X, Niu H, Ridi B, Shu J, Fang X, Li C, Wang B, Gao Y, Sun L, Cao M. A study of the microwave actuation of a liquid crystalline elastomer. SOFT MATTER 2020; 16:7332-7341. [PMID: 32685953 DOI: 10.1039/d0sm00493f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present a method for actuating LCE materials by microwave radiation. The microwave actuation performance of a polysiloxane-based nematic liquid crystalline elastomer (LCE) was investigated. The microwave-material interaction caused a dipolar loss, which created a heating effect to trigger the nematic-isotropic transition of the LCE matrix, thus leading to the deformation actuation of the LCE material. This energy conversion from radiant energy to thermal energy provided a contactless pathway to actuate the LCE material without the aid of other components acting as energy converters. The LCE demonstrated rapid maximum contraction upon microwave irradiation, and this microwave-stimulated response was fully reversible when the microwave irradiation was switched off. More importantly, the microwave actuation exhibited superiority relative to photo-actuation, which is the usual method of contactless actuation. The microwaves can penetrate the opaque thick barriers to effectively actuate the LCE due to their strong penetrability; they can also penetrate multiple LCE samples and actuate them almost simultaneously. By taking advantage of the salient features of microwave actuation, a microwave detector system, implementing the LCE as an actuator material, was fabricated. This demonstrated the performance of monitoring microwave irradiation intensities with good sensitivity and convenient manipulation.
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Affiliation(s)
- Xiuxiu Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, P. R. China. and Key Laboratory of Chemical Engineering Process and Technology for High-Efficiency Conversion, School of Chemistry and Material Science, Heilongjiang University, Harbin 150080, P. R. China.
| | - Yuchang Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Xixi Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Hongyan Niu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, P. R. China.
| | - Buyinga Ridi
- Key Laboratory of Electronics Engineering, College of Heilongjiang Province, Heilongjiang University, Harbin 150080, P. R. China.
| | - Jincheng Shu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Xiaoyong Fang
- School of Science, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Chensha Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, P. R. China.
| | - Binsong Wang
- Key Laboratory of Chemical Engineering Process and Technology for High-Efficiency Conversion, School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, P. R. China.
| | - Yachen Gao
- Key Laboratory of Electronics Engineering, College of Heilongjiang Province, Heilongjiang University, Harbin 150080, P. R. China.
| | - Liguo Sun
- Key Laboratory of Chemical Engineering Process and Technology for High-Efficiency Conversion, School of Chemistry and Material Science, Heilongjiang University, Harbin 150080, P. R. China.
| | - Maosheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
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Herath M, Epaarachchi J, Islam M, Fang L, Leng J. Light activated shape memory polymers and composites: A review. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109912] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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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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Huang X, Zhang F, Liu Y, Leng J. Active and Deformable Organic Electronic Devices based on Conductive Shape Memory Polyimide. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23236-23243. [PMID: 32338861 DOI: 10.1021/acsami.0c04635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Smart, deformable, and transparent electrodes are a significant part of flexible optoelectronic devices. In this work, a novel approach to making highly transparent, smooth, and conductive shape memory polyimide hybrids has been proposed. Colorless shape memory polyimide (CSMPI) with high optical transparency and high heat resistance is served as the substrate for flexible electronic devices for the first time. A hybrid (Au/Ag) metal grid electrode embedded in CSMPI (BMG/CSMPI) is first fabricated via self-cracking template and solution-coating, the advantages of which include ultrasmooth surface, superior mechanical flexibility and durability, strong surface adhesion, and excellent chemical stability due to the unique embedded hybrid structure. The resulting white polymer light emitting diodes (WPLEDs) based on BMG/CSMPI with shape memory effect are active and deformable, and are converted from 2D device into 3D devices depending on its variable stiffness characteristics. The deformed 3D devices could actively recover to the original shape upon heating. Furthermore, ultrathin and flexible 3D optoelectronic devices fabricated using shape memory polymers can promote the development of advanced optoelectronic applications in the future.
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Affiliation(s)
- Xinzuo Huang
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology (HIT), Harbin, 150080, PR China
| | - Fenghua Zhang
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology (HIT), Harbin, 150080, PR China
| | - Yanju Liu
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), Harbin, 150001, PR China
| | - Jinsong Leng
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology (HIT), Harbin, 150080, PR China
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Meng X, Zhang T, Zhang J, Qu G, Wu L, Liu H, Zhao H, Zhong B, Xia L, Huang X, Wen G. Deformable BCN/Fe 3O 4/PCL composites through electromagnetic wave remote control. NANOTECHNOLOGY 2020; 31:255710. [PMID: 32050191 DOI: 10.1088/1361-6528/ab758c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Electromagnetic wave (EMW) induction of shape memory polymer (SMP) composites with multifunctional inorganic fillers is a high efficiency, uniform, and non-contact method. Herein, the shape memory effect of ternary BCN/Fe3O4/PCL composites induced by EMWs are explored. The components of Fe3O4 and the BCN nanotubes serve as wave-absorbing materials. The electromagnetic properties and EMW absorption performance of BCN/Fe3O4/PCL are discussed in detail. The EMWs absorbed by BCN/Fe3O4/PCL are dissipated by dielectric loss and magnetic loss. The shape memory mechanism of BCN/Fe3O4/PCL is based on the Fe3O4 and BCN nanotubes dissipating absorbed EMW energy into heat to boost the temperature of the composites, thereby responding to EMW remote control. This work introduces a new direction for SMPs induced by EMWs as potential candidates in the application of shape recovery in a restricted space.
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Affiliation(s)
- Xiaohuan Meng
- School of Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, People's Republic of China
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27
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Bonetti KA, Murphy M, Brainard RL, Zhong L, Welch JT. Photosensitive Hypervalent Fluorinated Sulfur Containing Polymers for Light Sensitive Applications. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kelly A. Bonetti
- Department of Chemistry University at Albany SUNY 1400 Washington Ave., Albany New York
| | - Michael Murphy
- Department of Nanoscience College of Nanoscale Sciences, SUNY Polytechnic Institute 257 Fuller Rd, Albany New York
| | - Robert L. Brainard
- Department of Nanoscience College of Nanoscale Sciences, SUNY Polytechnic Institute 257 Fuller Rd, Albany New York
| | - Linbin Zhong
- Department of Chemistry University at Albany SUNY 1400 Washington Ave., Albany New York
| | - John T. Welch
- Department of Chemistry University at Albany SUNY 1400 Washington Ave., Albany New York
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28
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Two-Way and Multiple-Way Shape Memory Polymers for Soft Robotics: An Overview. ACTUATORS 2020. [DOI: 10.3390/act9010010] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Shape memory polymers (SMPs) are smart materials capable of changing their shapes in a predefined manner under a proper applied stimulus and have gained considerable interest in several application fields. Particularly, two-way and multiple-way SMPs offer unique opportunities to realize untethered soft robots with programmable morphology and/or properties, repeatable actuation, and advanced multi-functionalities. This review presents the recent progress of soft robots based on two-way and multiple-way thermo-responsive SMPs. All the building blocks important for the design of such robots, i.e., the base materials, manufacturing processes, working mechanisms, and modeling and simulation tools, are covered. Moreover, examples of real-world applications of soft robots and related actuators, challenges, and future directions are discussed.
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29
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Yun CS, Sohn JS, Cha SW. Shape-Memory-Recovery Characteristics of Microcellular Foamed Thermoplastic Polyurethane. Polymers (Basel) 2020; 12:polym12020351. [PMID: 32041158 PMCID: PMC7077500 DOI: 10.3390/polym12020351] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 11/16/2022] Open
Abstract
We investigated the shape-recovery characteristics of thermoplastic polyurethane (TPU) with a microcellular foaming process (MCP). Additionally, we investigated the correlation between changes in the microstructure and the shape-recovery characteristics of the polymers. TPU was selected as the base material, and the shape-recovery characteristics were confirmed using a universal testing machine, by manufacturing dog-bone-type injection-molded specimens. TPUs are reticular polymers with both soft and hard segments. In this study, we investigated the shape-memory mechanism of foamed polymers by maximizing the shape-memory properties of these polymers through a physical foaming process. Toward this end, TPU specimens were prepared by varying the gas pressure, foaming temperature, and type of foaming gas in the batch MCP. The effects of internal structural changes were investigated. These experimental variables affected the microstructure and shape-recovery characteristics of the foamed polymer. The generated cell density changed, which affected the shape-recovery characteristics. In general, a higher cell density corresponded to a higher shape-recovery ratio.
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30
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Gong X, Yin H, Zhang M, Shi X. Effects of dual‐crosslinking networks on shape memory performance of polynorbornene. J Appl Polym Sci 2020. [DOI: 10.1002/app.48955] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaowen Gong
- Key Laboratory of Rubber‐Plastics, Ministry of EducationCollege of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 People's Republic of China
| | - Hao Yin
- Key Laboratory of Rubber‐Plastics, Ministry of EducationCollege of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 People's Republic of China
| | - Maolin Zhang
- Key Laboratory of Rubber‐Plastics, Ministry of EducationCollege of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 People's Republic of China
| | - Xinyan Shi
- Key Laboratory of Rubber‐Plastics, Ministry of EducationCollege of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao 266042 People's Republic of China
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31
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Zheng Y, Zeng B, Yang L, Shen J, Guo S. Fabrication of Thermoplastic Polyurethane/Polycaprolactone Multilayered Composites with Confined Distribution of MWCNTs for Achieving Tunable Thermo- and Electro-Responsive Shape-Memory Performances. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06247] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yu Zheng
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Bingbing Zeng
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Lihua Yang
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Jiabin Shen
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Shaoyun Guo
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Sichuan University, Chengdu, Sichuan 610065, P. R. China
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Panahi-Sarmad M, Abrisham M, Noroozi M, Amirkiai A, Dehghan P, Goodarzi V, Zahiri B. Deep focusing on the role of microstructures in shape memory properties of polymer composites: A critical review. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Iregui A, Irusta L, Martin L, González A. Analysis of the Process Parameters for Obtaining a Stable Electrospun Process in Different Composition Epoxy/Poly ε-Caprolactone Blends with Shape Memory Properties. Polymers (Basel) 2019; 11:E475. [PMID: 30960459 PMCID: PMC6474130 DOI: 10.3390/polym11030475] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 11/20/2022] Open
Abstract
In this work Poly ε-caprolactone (PCL)/ Diglycidyl ether of bisphenol A (DGEBA) blends were electrospun and the obtained mats were UV cured to achieve shape memory properties. In the majority of studies, when blends with different compositions are electrospun, the process variables such as voltage or flow rate are fixed independently of the composition and consequently the quality of the fibers is not optimized in all of the range studied. In the present work, using the design of experiments methodology, flow rate and voltage required to obtain a stable process were evaluated as responses in addition to the fiber diameter and shape memory properties. The results showed that the solution concentration and amount of PCL played an important role in the voltage and flow rate. For the shape memory properties excellent values were achieved and no composition dependence was observed. In the case of fiber diameter, similar results to previous works were observed.
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Affiliation(s)
- Alvaro Iregui
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country UPV-EHU, PO Box 1072, 20080 Donostia/San Sebastian, Spain.
| | - Lourdes Irusta
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country UPV-EHU, PO Box 1072, 20080 Donostia/San Sebastian, Spain.
| | - Loli Martin
- Macrobehaviour-Mesostructure-Nanotechnology SGIker Service, Polytechnic School, University of the Basque Country UPV-EHU, Plaza Europa 1, 20018 Donostia/San Sebastian, Spain.
| | - Alba González
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country UPV-EHU, PO Box 1072, 20080 Donostia/San Sebastian, Spain.
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Wu Y, Hu Z, Huang H, Chen Y. The design of triple shape memory polymers with stable yet tunable temporary shapes by introducing photo-responsive units into a crystalline domain. Polym Chem 2019. [DOI: 10.1039/c8py01810c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A desirable triple-shape memory effect showing stable yet easily tunable temporary shapes is achieved using a physically crosslinked network with photo-responsive coumarin-containing poly(ε-caprolactone) as soft segments and poly(l-lactide) as hard segments.
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Affiliation(s)
- Yongwei Wu
- Center for Functional Biomaterials
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
| | - Zhitao Hu
- Center for Functional Biomaterials
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
| | - Huahua Huang
- Center for Functional Biomaterials
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
| | - Yongming Chen
- Center for Functional Biomaterials
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Sun Yat-sen University
- Guangzhou 510275
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Bi H, Xu M, Ye G, Guo R, Cai L, Ren Z. Mechanical, Thermal, and Shape Memory Properties of Three-Dimensional Printing Biomass Composites. Polymers (Basel) 2018; 10:E1234. [PMID: 30961159 PMCID: PMC6401767 DOI: 10.3390/polym10111234] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/27/2018] [Accepted: 10/27/2018] [Indexed: 11/18/2022] Open
Abstract
In this study, a series of heat-induced shape memory composites was prepared by the hot-melt extrusion and three-dimensional (3D) printing of thermoplastic polyurethane (TPU) using wood flour (WF) with different contents of EPDM-g-MAH. The mechanical properties, microtopography, thermal property analysis, and heat-induced shape memory properties of the composites were examined. The results showed that, when the EPDM-g-MAH content was 4%, the tensile elongation and tensile strength of the composites reached the maximum value. The scanning electron microscopy and dynamic mechanical analysis results revealed a good interface bonding between TPU and WF when the EPDM-g-MAH content was 4%. The thermogravimetric analysis indicated that the thermal stability of TPU/WF composites was enhanced by the addition of 4% EPDM-g-MAH. Heat-induced shape memory test results showed that the shape memory performance of composites with 4% EPDM-g-MAH was better than that of unmodified-composites. The composites' shape recovery performance at a temperature of 60 °C was higher than that of the composites at ambient temperature. It was also found that, when the filling angle of the specimen was 45°, the recovery angle of the composites was larger.
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Affiliation(s)
- Hongjie Bi
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Min Xu
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Gaoyuan Ye
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Rui Guo
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Liping Cai
- Mechanical and Energy Engineering Department, University of North Texas, Denton, TX 76201, USA.
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Zechun Ren
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
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Toncheva A, Khelifa F, Paint Y, Voué M, Lambert P, Dubois P, Raquez JM. Fast IR-Actuated Shape-Memory Polymers Using in Situ Silver Nanoparticle-Grafted Cellulose Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29933-29942. [PMID: 30092638 DOI: 10.1021/acsami.8b10159] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In recent years, shape-memory polymers (SMPs) have gained a key position in the realm of actuating applications from daily life products to biomedical and aeronautic devices. Most of these SMPs rely mainly on shape changes upon direct heat exposure or after stimulus conversion (e.g., magnetic field and light) to heat, but this concept remains significantly limited when both remote control and fine actuation are demanded. In the present study, we propose to design plasmonic silver nanoparticles (AgNPs) grafted onto cellulose nanocrystals (CNCs) as an efficient plasmonic system for fast and remote actuation. Such CNC- g-AgNPs "nanorod-like" structures thereby allowed for a long-distance and strong coupling plasmonic effect between the AgNPs along the CNC axis, thus ensuring a fast photothermal shape-recovery effect upon IR light illumination. To demonstrate the fast and remote actuation promoted by these structures, we incorporated them at low loading (1 wt %) into poly(ε-caprolactone) (PCL)-based networks with shape-memory properties. These polymer matrix networks were practically designed from biocompatible PCL oligomers end-functionalized with maleimide and furan moieties in the melt on the basis of thermoreversible Diels-Alder reactions. The as-produced materials could find application in the realm of soft robotics for remote object transportation or as smart biomaterials such as self-tightening knots with antibacterial properties related to the presence of the AgNPs.
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Affiliation(s)
- Antoniya Toncheva
- Laboratory of Polymeric and Composite Materials , University of Mons , 23 Place du Parc , Mons 7000 , Belgium
- Laboratory of Bioactive Polymers, Institute of Polymers , Bulgarian Academy of Sciences , 103A Academik G. Bonchev Street , Sofia 1113 , Bulgaria
| | - Farid Khelifa
- Laboratory of Polymeric and Composite Materials , University of Mons , 23 Place du Parc , Mons 7000 , Belgium
| | - Yoann Paint
- Analysis and Characterization Unit , Materia Nova , 1 Avenue Copernic , Mons 7000 , Belgium
| | - Michel Voué
- Materials Physics and Optics , University of Mons , 20 Place du Parc , Mons 7000 , Belgium
| | - Pierre Lambert
- BioElectro and Mechanical Systems Department , Free University of Brussels , 50 Avenue F.D. Roosevelt , Brussels 1050 , Belgium
| | - Philippe Dubois
- Laboratory of Polymeric and Composite Materials , University of Mons , 23 Place du Parc , Mons 7000 , Belgium
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials , University of Mons , 23 Place du Parc , Mons 7000 , Belgium
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Chen X, Cheng L, Li H, Barhoum A, Zhang Y, He X, Yang W, Bubakir MM, Chen H. Magnetic Nanofibers: Unique Properties, Fabrication Techniques, and Emerging Applications. ChemistrySelect 2018. [DOI: 10.1002/slct.201702480] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaoqing Chen
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
| | - Lisheng Cheng
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
- State Key Laboratory of Organic-Inorganic Composites; Beisanhuan East Road 15 Beijing 100029 P.R China
| | - Haoyi Li
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
- State Key Laboratory of Organic-Inorganic Composites; Beisanhuan East Road 15 Beijing 100029 P.R China
| | - Ahmed Barhoum
- Department of Materials and Chemistry; Vrije Universiteit Brussel; B-1050 Brussels Belgium
| | - Youchen Zhang
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
| | - Xuetao He
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
| | - Weinmin Yang
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
- State Key Laboratory of Organic-Inorganic Composites; Beisanhuan East Road 15 Beijing 100029 P.R China
| | - Mahmoud M Bubakir
- College of Mechanical and Electrical Engineering; Beijing University of Chemical Technology; Beisanhuan East Road 15 Beijing 100029 P.R China Beijing
| | - Hongbo Chen
- College of Mechanical and Electrical Engineering; Qingdao University of Science and Technology; No.99 Songling Rd,Qingdao,Shandong,P.R. China
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Li P, Han Y, Wang W, Chen X, Jin P, Liu S. Self-Erasable Nanocone Antireflection Films Based on the Shape Memory Effect of Polyvinyl Alcohol (PVA) Polymers. Polymers (Basel) 2018; 10:E756. [PMID: 30960681 PMCID: PMC6403550 DOI: 10.3390/polym10070756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/25/2018] [Accepted: 06/27/2018] [Indexed: 01/21/2023] Open
Abstract
Arrays of nanostructure that are capable of broadband antireflection and light trapping properties are implemented in photovoltaic and photonic devices. However, most of the existing antireflection films have been hindered by a complicated fabricated method and structurally rigid. Here, we report a simple preparation method for self-erasable nanocone antireflection films using the surface replication method. Arrays of nanocone with sub-100 nm surface features could be replicated easily on the shape memory polyvinyl alcohol (PVA) film, and are erased by thermal stimulation. The reflectivity of self-erasable antireflection film can be switched from the 4.5% to 0.6% averaged over the visible spectral range by controlling the temperature below or above 80 °C. Theoretical simulations have been demonstrated. The unique smart film is expected to be used to further extend the application of smart optical windows and digital screens.
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Affiliation(s)
- Peng Li
- Heilongjiang Provincial Key Laboratory of Metamaterials Physics and Device, Heilongjiang University, Harbin 150080, China.
- Acoustic Science and Technology Laboratory, College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Yu Han
- Research Center of Ultra-Precision Optoelectronic Instrumentation, Harbin Institute of Technology, Harbin 150080, China.
| | - Wenxin Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China.
| | - Xinlong Chen
- Heilongjiang Provincial Key Laboratory of Metamaterials Physics and Device, Heilongjiang University, Harbin 150080, China.
| | - Peng Jin
- Research Center of Ultra-Precision Optoelectronic Instrumentation, Harbin Institute of Technology, Harbin 150080, China.
| | - Shengchun Liu
- Heilongjiang Provincial Key Laboratory of Metamaterials Physics and Device, Heilongjiang University, Harbin 150080, China.
- Acoustic Science and Technology Laboratory, College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China.
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Bai Y, Zhang J, Chen X. A Thermal-, Water-, and Near-Infrared Light-Induced Shape Memory Composite Based on Polyvinyl Alcohol and Polyaniline Fibers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14017-14025. [PMID: 29652479 DOI: 10.1021/acsami.8b01425] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A multiresponsive shape memory composite was prepared by incorporating polyaniline (PAn) fibers into polyvinyl alcohol (PVA), where in situ polymerization assisted by surfactant was used to homogeneously disperse PAn fibers in a PVA matrix. The PAn fibers not only increased physical cross-linking points in the system but also served as photothermal conversion reagents, resulting in excellent water-, thermal-, and near-infrared (NIR) light-induced shape memory properties of the composites, where their light-induced shape recovery ratio and speed could be enhanced via the increase of PAn loading percentage and light power density. Moreover, the composites possessed high mechanical properties with tensile strength over 83 MPa. On the basis of these dramatic mechanical properties and shape memory properties, the composites could show high recovery stress over 6.0 MPa, which increased with the increase of temperature and PAn loading percentage. This presented composite could be a great candidate as actuator element for various applications.
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Affiliation(s)
- Yongkang Bai
- School of Chemical Engineering and Technology, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering , Xi'an Jiao Tong University , Xi'an , Shaanxi 710049 , China
| | - Jiwen Zhang
- School of Chemical Engineering and Technology, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering , Xi'an Jiao Tong University , Xi'an , Shaanxi 710049 , China
| | - Xin Chen
- School of Chemical Engineering and Technology, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering , Xi'an Jiao Tong University , Xi'an , Shaanxi 710049 , China
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40
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Guo Q, Bishop CJ, Meyer RA, Wilson DR, Olasov L, Schlesinger DE, Mather PT, Spicer JB, Elisseeff JH, Green JJ. Entanglement-Based Thermoplastic Shape Memory Polymeric Particles with Photothermal Actuation for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13333-13341. [PMID: 29600843 PMCID: PMC6286191 DOI: 10.1021/acsami.8b01582] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Triggering shape-memory functionality under clinical hyperthermia temperatures could enable the control and actuation of shape-memory systems in clinical practice. For this purpose, we developed light-inducible shape-memory microparticles composed of a poly(d,l-lactic acid) (PDLLA) matrix encapsulating gold nanoparticles (Au@PDLLA hybrid microparticles). This shape-memory polymeric system for the first time demonstrates the capability of maintaining an anisotropic shape at body temperature with triggered shape-memory effect back to a spherical shape at a narrow temperature range above body temperature with a proper shape recovery speed (37 < T < 45 °C). We applied a modified film-stretching processing method with carefully controlled stretching temperature to enable shape memory and anisotropy in these micron-sized particles. Accordingly, we achieved purely entanglement-based shape-memory response without chemical cross-links in the miniaturized shape-memory system. Furthermore, these shape-memory microparticles exhibited light-induced spatiotemporal control of their shape recovery using a laser to trigger the photothermal heating of doped gold nanoparticles. This shape-memory system is composed of biocompatible components and exhibits spatiotemporal controllability of its properties, demonstrating a potential for various biomedical applications, such as tuning macrophage phagocytosis as demonstrated in this study.
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Affiliation(s)
- Qiongyu Guo
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Corey J. Bishop
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Randall A. Meyer
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - David R. Wilson
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Lauren Olasov
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Daphne E. Schlesinger
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Patrick T. Mather
- Department of Chemical Engineering, Bucknell University, Lewisburg, PA 17837, USA
| | - James B. Spicer
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jennifer H. Elisseeff
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Jordan J. Green
- Department of Biomedical Engineering, Institute for Nanobiotechnology, and Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Departments of Oncology, Neurosurgery, and Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21231, USA
- To whom correspondence should be addressed:
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41
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Belmonte A, Lama GC, Gentile G, Cerruti P, Ambrogi V, Fernández-Francos X, De la Flor S. Thermally-triggered free-standing shape-memory actuators. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Chen L, Liu Y, Leng J. Microwave responsive epoxy nanocomposites reinforced by carbon nanomaterials of different dimensions. J Appl Polym Sci 2017. [DOI: 10.1002/app.45676] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lei Chen
- Department of Astronautical Science and Mechanics; Harbin Institute of Technology, West Dazhi Street; Harbin 150001 People's Republic of China
| | - Yanju Liu
- Department of Astronautical Science and Mechanics; Harbin Institute of Technology, West Dazhi Street; Harbin 150001 People's Republic of China
| | - Jinsong Leng
- Centre for Composite Materials and Structures; Science Park of Harbin Institute of Technology, YiKuang Street; Harbin 150080 People's Republic of China
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43
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Facile preparation of rapidly electro-active shape memory thermoplastic polyurethane/polylactide blends via phase morphology control and incorporation of conductive fillers. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.077] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Li P, Han Y, Wang W, Liu Y, Jin P, Leng J. Novel Programmable Shape Memory Polystyrene Film: A Thermally Induced Beam-power Splitter. Sci Rep 2017; 7:44333. [PMID: 28276500 PMCID: PMC5343575 DOI: 10.1038/srep44333] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 02/07/2017] [Indexed: 11/29/2022] Open
Abstract
Micro/nanophotonic structures that are capable of optical wave-front shaping are implemented in optical waveguides and passive optical devices to alter the phase of the light propagating through them. The beam division directions and beam power distribution depend on the design of the micro/nanostructures. The ultimate potential of advanced micro/nanophotonic structures is limited by their structurally rigid, functional singleness and not tunable against external impact. Here, we propose a thermally induced optical beam-power splitter concept based on a shape memory polystyrene film with programmable micropatterns. The smooth film exhibits excellent transparency with a transmittance of 95% in the visible spectrum and optical stability during a continuous heating process up to 90 °C. By patterning double sided shape memory polystyrene film into erasable and switchable micro-groove gratings, the transmission light switches from one designed light divided directions and beam-power distribution to another because of the optical diffraction effect of the shape changing micro gratings during the whole thermal activated recovery process. The experimental and theoretical results demonstrate a proof-of-principle of the beam-power splitter. Our results can be adapted to further extend the applications of micro/nanophotonic devices and implement new features in the nanophotonics.
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Affiliation(s)
- Peng Li
- Center for Composite Materials and Structures, Harbin Institute of Technology, No. 2 YiKuang Street, Harbin, 150080, P.R. China
| | - Yu Han
- Research Center of Ultra-precision Optoelectronic Instrumentation, Harbin Institute of Technology, No. 2 YiKuang Street, Harbin, 150080, P.R. China
| | - Wenxin Wang
- Center for Composite Materials and Structures, Harbin Institute of Technology, No. 2 YiKuang Street, Harbin, 150080, P.R. China
| | - Yanju Liu
- Department of Aerospace Science and Mechanics, Harbin Institute of Technology, No. 92 West DaZhi Street, Harbin, 150001, P.R. China
| | - Peng Jin
- Research Center of Ultra-precision Optoelectronic Instrumentation, Harbin Institute of Technology, No. 2 YiKuang Street, Harbin, 150080, P.R. China
| | - Jinsong Leng
- Center for Composite Materials and Structures, Harbin Institute of Technology, No. 2 YiKuang Street, Harbin, 150080, P.R. China
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45
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Hu J, Zhang C, Li X, Han J, Ji F. Architectural evolution of phase domains in shape memory polyurethanes by dissipative particle dynamics simulations. Polym Chem 2017. [DOI: 10.1039/c6py01214k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The MDI phase in SMPUs develops a framework with netpoints evolving from spheres, to linked-spheres, linked-cylinders, and then to linked-bi-crossing-cylinders.
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Affiliation(s)
- Jinlian Hu
- Institute of Textiles and Clothing
- the Hong Kong Polytechnic University
- Kowloon
- China
- The Hong Kong Polytechnic University Shenzhen Base
| | - Cuili Zhang
- Institute of Textiles and Clothing
- the Hong Kong Polytechnic University
- Kowloon
- China
- The Hong Kong Polytechnic University Shenzhen Base
| | - Xun Li
- Department of Applied Mathematics
- the Hong Kong Polytechnic University
- Kowloon
- China
| | - Jianping Han
- Institute of Textiles and Clothing
- the Hong Kong Polytechnic University
- Kowloon
- China
- The Hong Kong Polytechnic University Shenzhen Base
| | - Fenglong Ji
- School of Textiles and Clothing
- Wuyi University
- Jiangmen
- China
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46
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Xie F, Huang C, Wang F, Huang L, Weiss RA, Leng J, Liu Y. Carboxyl-Terminated Polybutadiene–Poly(styrene-co-4-vinylpyridine) Supramolecular Thermoplastic Elastomers and Their Shape Memory Behavior. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01785] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fang Xie
- Department of Astronautical Science and
Mechanics, Harbin Institute of Technology, Harbin 150001, China
- Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Chongwen Huang
- Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Fei Wang
- Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Longnan Huang
- Department of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - R. A. Weiss
- Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jinsong Leng
- Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, China
| | - Yanju Liu
- Department of Astronautical Science and
Mechanics, Harbin Institute of Technology, Harbin 150001, China
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