1
|
Salvekar AV, Nasir FHBA, Chen YH, Maiti S, Ranjan VD, Chen HM, Wang H, Huang WM. Rapid Volumetric Additive Manufacturing in Solid State: A Demonstration to Produce Water-Content-Dependent Cooling/Heating/Water-Responsive Shape Memory Hydrogels. 3D PRINTING AND ADDITIVE MANUFACTURING 2024; 11:125-131. [PMID: 38389693 PMCID: PMC10880647 DOI: 10.1089/3dp.2021.0279] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
In this study, we demonstrate the feasibility of rapid volumetric additive manufacturing in the solid state. This additive manufacturing technology is particularly useful in outer space missions (microgravity) and/or for harsh environment (e.g., on ships and vehicles during maneuvering, or on airplanes during flight). A special thermal gel is applied here to demonstrate the concept, that is, ultraviolet crosslinking in the solid state. The produced hydrogels are characterized and the water-content-dependent heating/cooling/water-responsive shape memory effect is revealed. Here, the shape memory feature is required to eliminate the deformation induced in the process of removing the uncrosslinked part from the crosslinked part in the last step of this additive manufacturing process.
Collapse
Affiliation(s)
- Abhijit Vijay Salvekar
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| | | | - Ya Hui Chen
- School of Physical Science and Technology, Soochow University, Suzhou, China
| | - Sharanya Maiti
- Department of Manufacturing Engineering, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Vivek Damodar Ranjan
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| | - Hong Mei Chen
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, China
| | - Han Wang
- Guangdong Provincial Key Laboratory of Micro-Nano Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| |
Collapse
|
2
|
Naveen BS, Jose NT, Krishnan P, Mohapatra S, Pendharkar V, Koh NYH, Lim WY, Huang WM. Evolution of Shore Hardness under Uniaxial Tension/Compression in Body-Temperature Programmable Elastic Shape Memory Hybrids. Polymers (Basel) 2022; 14:4872. [PMID: 36432998 PMCID: PMC9697891 DOI: 10.3390/polym14224872] [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: 09/19/2022] [Revised: 11/02/2022] [Accepted: 11/06/2022] [Indexed: 11/15/2022] Open
Abstract
Body-temperature programmable elastic shape memory hybrids (SMHs) have great potential for the comfortable fitting of wearable devices. Traditionally, shore hardness is commonly used in the characterization of elastic materials. In this paper, the evolution of shore hardness in body-temperature programmable elastic SMHs upon cyclic loading, and during the shape memory cycle, is systematically investigated. Upon cyclic loading, similar to the Mullins effect, significant softening appears, when the applied strain is over a certain value. On the other hand, after programming, in general, the measured hardness increases with increase in programming strain. However, for certain surfaces, the hardness decreases slightly and then increases rapidly. The underlying mechanism for this phenomenon is explained by the formation of micro-gaps between the inclusion and the matrix after programming. After heating, to melt the inclusions, all samples (both cyclically loaded and programmed) largely recover their original hardness.
Collapse
Affiliation(s)
- Balasundaram Selvan Naveen
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Nivya Theresa Jose
- Polymer Science and Engineering, Indian Institute of Technology, Roorkee 247667, India
| | - Pranav Krishnan
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur 721302, India
| | - Subham Mohapatra
- Department of Mechanical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Vivek Pendharkar
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Nicholas Yuan Han Koh
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Woon Yong Lim
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| |
Collapse
|
3
|
Kim H, Li J, Hsieh YSY, Cho M, Ahn SH, Li C. Photo-Programmed Deformations in Rigid Liquid Crystalline Polymers Triggered by Body Temperature. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203772. [PMID: 36169084 DOI: 10.1002/smll.202203772] [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: 06/17/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Deformations triggered by body heat are desirable in the context of shape-morphing applications because, under the majority of circumstances, the human body maintains a higher temperature than that of its surroundings. However, at present, this bioenergy-triggered action is primarily limited to soft polymeric networks. Thus, herein, the programming of body temperature-triggered deformations into rigid azobenzene-containing liquid crystalline polymers (azo-LCPs) with a glass-transition temperature of 100 °C is demonstrated. To achieve this, a mechano-assisted photo-programming strategy is used to create a metastable state with room-temperature stable residual stress, which is induced by the isomerization of azobenzene. The programmed rigid azo-LCP can undergo large-amplitude body temperature-triggered shape changes within minutes and can be regenerated without any performance degradation. By changing the programming photomasks and irradiation conditions employed, various 2D to 3D shape-morphing architectures, including folded clips, inch-worm structures, spiral structures, and snap-through motions are achieved. When programmed with polarized light, the proposed strategy results in domain-selective activation, generating designed characteristics in multi-domain azo-LCPs. The reported strategy is therefore expected to broaden the applications of azo-LCPs in the fields of biomedical and flexible microelectronic devices.
Collapse
Affiliation(s)
- Hyunsu Kim
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Jing Li
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE106 91, Sweden
| | - Yves S Y Hsieh
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, SE106 91, Sweden
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Maenghyo Cho
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Sung-Hoon Ahn
- Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Chenzhe Li
- School of Aerospace Engineering and Applied Mechanics, Tongji University, 100 Zhangwu Road, Shanghai, 200092, China
- Institute of Advanced Machines and Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| |
Collapse
|
4
|
Kausar A. Shape memory poly(methyl methacrylate) nanocomposites: design and methodical trends. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1930046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center For Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
| |
Collapse
|
5
|
Peng K, Zhao Y, Shahab S, Mirzaeifar R. Ductile Shape-Memory Polymer Composite with Enhanced Shape Recovery Ability. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58295-58300. [PMID: 33337851 DOI: 10.1021/acsami.0c18413] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In recent years, shape-memory polymers (SMPs) have received extensive attention to be used as actuators in a broad range of applications such as medical and robotic devices. Their ability to recover large deformations and their capability to be stimulated remotely have made SMPs a superior choice among different smart materials in various applications. In this study, a ductile SMP composite with enhanced shape recovery ability is synthesized and characterized. This SMP composite is made by a mixture of acrylate-based crosslinkers and monomers, as well as polystyrene (PS) with UV curing. The composite can achieve almost 100% shape recovery in 2 s by hot water or hot air. This shape recovery speed is much faster than typical acrylate-based SMPs. In addition, the composite shows excellent ductility and viscoelasticity with reduced hardness. Molecular dynamics (MD) simulations are performed for understanding the curing mechanism of this composite. With the combination of the experimental and computational works, this study paves the way in front of designing and optimizing the future SMP devices.
Collapse
Affiliation(s)
- Kaiyuan Peng
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Yao Zhao
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Shima Shahab
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Reza Mirzaeifar
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| |
Collapse
|
6
|
Smola-Dmochowska A, Śmigiel-Gac N, Kaczmarczyk B, Sobota M, Janeczek H, Karpeta-Jarząbek P, Kasperczyk J, Dobrzyński P. Triple-Shape Memory Behavior of Modified Lactide/Glycolide Copolymers. Polymers (Basel) 2020; 12:E2984. [PMID: 33327569 PMCID: PMC7765011 DOI: 10.3390/polym12122984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 01/08/2023] Open
Abstract
The paper presents the formation and properties of biodegradable thermoplastic blends with triple-shape memory behavior, which were obtained by the blending and extrusion of poly(l-lactide-co-glycolide) and bioresorbable aliphatic oligoesters with side hydroxyl groups: oligo (butylene succinate-co-butylene citrate) and oligo(butylene citrate). Addition of the oligoesters to poly (l-lactide-co-glycolide) reduces the glass transition temperature (Tg) and also increases the flexibility and shape memory behavior of the final blends. Among the tested blends, materials containing less than 20 wt % of oligo (butylene succinate-co-butylene citrate) seem especially promising for biomedical applications as materials for manufacturing bioresorbable implants with high flexibility and relatively good mechanical properties. These blends show compatibility, exhibiting one glass transition temperature and macroscopically uniform physical properties.
Collapse
Affiliation(s)
- Anna Smola-Dmochowska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
| | - Natalia Śmigiel-Gac
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
| | - Bożena Kaczmarczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
| | - Michał Sobota
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
| | - Paulina Karpeta-Jarząbek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
| | - Janusz Kasperczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
- School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, 40-000 Katowice, Poland
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowska 34, 41-819 Zabrze, Poland; (N.Ś.-G.); (B.K.); (M.S.); (H.J.); (P.K.-J.); (J.K.)
- Faculty of Science and Technology, Jan Dlugosz University, 42-200 Czestochowa, Poland
| |
Collapse
|
7
|
Wang TX, Chen HM, Salvekar AV, Lim J, Chen Y, Xiao R, Huang WM. Vitrimer-Like Shape Memory Polymers: Characterization and Applications in Reshaping and Manufacturing. Polymers (Basel) 2020; 12:E2330. [PMID: 33053813 PMCID: PMC7601385 DOI: 10.3390/polym12102330] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 12/26/2022] Open
Abstract
The shape memory effect (SME) refers to the ability of a material to recover its original shape, but only in the presence of a right stimulus. Most polymers, either thermo-plastic or thermoset, can have the SME, although the actual shape memory performance varies according to the exact material and how the material is processed. Vitrimer, which is between thermoset and thermo-plastic, is featured by the reversible cross-linking. Vitrimer-like shape memory polymers (SMPs) combine the vitrimer-like behavior (associated with dissociative covalent adaptable networks) and SME, and can be utilized to achieve many novel functions that are difficult to be realized by conventional polymers. In the first part of this paper, a commercial polymer is used to demonstrate how to characterize the vitrimer-like behavior based on the heating-responsive SME. In the second part, a series of cases are presented to reveal the potential applications of vitrimer-like SMPs and their composites. It is concluded that the vitrimer-like feature not only enables many new ways in reshaping polymers, but also can bring forward new approaches in manufacturing, such as, rapid 3D printing in solid state on space/air/sea missions.
Collapse
Affiliation(s)
- Tao Xi Wang
- College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China;
| | - Hong Mei Chen
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China
| | - Abhijit Vijay Salvekar
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (A.V.S.); (J.L.)
| | - Junyi Lim
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (A.V.S.); (J.L.)
| | - Yahui Chen
- School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
| | - Rui Xiao
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China;
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; (A.V.S.); (J.L.)
| |
Collapse
|
8
|
Xiao R, Huang WM. Heating/Solvent Responsive Shape-Memory Polymers for Implant Biomedical Devices in Minimally Invasive Surgery: Current Status and Challenge. Macromol Biosci 2020; 20:e2000108. [PMID: 32567193 DOI: 10.1002/mabi.202000108] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/03/2020] [Indexed: 12/16/2022]
Abstract
This review is about the fundamentals and practical issues in applying both heating and solvent responsive shape memory polymers (SMPs) for implant biomedical devices via minimally invasive surgery. After revealing the general requirements in the design of biomedical devices based on SMPs and the fundamentals for the shape-memory effect in SMPs, the underlying mechanisms, characterization methods, and several representative biomedical applications, including vascular stents, tissue scaffolds, occlusion devices, drug delivery systems, and the current R&D status of them, are discussed. The new opportunities arising from emerging technologies, such as 3D printing, and new materials, such as vitrimer, are also highlighted. Finally, the major challenge that limits the practical clinical applications of SMPs at present is addressed.
Collapse
Affiliation(s)
- Rui Xiao
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| |
Collapse
|
9
|
|
10
|
|
11
|
Sun L, Wang TX, Chen HM, Salvekar AV, Naveen BS, Xu Q, Weng Y, Guo X, Chen Y, Huang WM. A Brief Review of the Shape Memory Phenomena in Polymers and Their Typical Sensor Applications. Polymers (Basel) 2019; 11:E1049. [PMID: 31208102 PMCID: PMC6631414 DOI: 10.3390/polym11061049] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/23/2022] Open
Abstract
In this brief review, an introduction of the underlying mechanisms for the shape memory effect (SME) and various shape memory phenomena in polymers is presented first. After that, a summary of typical applications in sensors based on either heating or wetting activated shape recovery using largely commercial engineering polymers, which are programmed by means of in-plane pre-deformation (load applied in the length/width direction) or out-of-plane pre-deformation (load applied in the thickness direction), is presented. As demonstrated by a number of examples, many low-cost engineering polymers are well suited to, for instance, anti-counterfeit and over-heating/wetting monitoring applications via visual sensation and/or tactual sensation, and many existing technologies and products (e.g., holography, 3D printing, nano-imprinting, electro-spinning, lenticular lens, Fresnel lens, QR/bar code, Moiré pattern, FRID, structural coloring, etc.) can be integrated with the shape memory feature.
Collapse
Affiliation(s)
- Li Sun
- School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China.
| | - Tao Xi Wang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- School of Materials Engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Hong Mei Chen
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China.
| | - Abhijit Vijay Salvekar
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Balasundaram Selvan Naveen
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Qinwei Xu
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Yiwei Weng
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Xinli Guo
- School of Materials Science and Engineering, Southeast University, Nanjing 211189, China.
| | - Yahui Chen
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| |
Collapse
|
12
|
Biocompatible thermo- and magneto-responsive shape-memory polyurethane bionanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 97:658-668. [PMID: 30678953 DOI: 10.1016/j.msec.2018.12.074] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 12/22/2018] [Accepted: 12/23/2018] [Indexed: 11/23/2022]
Abstract
Thermo- and magneto-responsive shape-memory bionanocomposites based on a bio-based polyurethane and magnetite nanoparticles were prepared. Due to the structure of the reactants, the behavior of the polyurethane matrix differs from common polyurethanes, since the soft segment was formed by a diisocyanate and a chain extender, whereas the macrodiol served as hard segment. The influence of the magnetite nanoparticles on the thermal and mechanical properties and the shape-memory behavior was studied. It was observed that magnetite nanoparticles interacted with macrodiol-rich domains and decreased the overall crystallinity of the material, although their presence did not affect the mechanical properties to a great extent. At the same time, the magnetite nanoparticles increased the shape fixity and contributed to shape recovery. The bionanocomposites exhibited magnetic behavior and could be easily heated in an alternating magnetic field, allowing fast and almost complete shape recovery. Preliminary cytotoxicity, hemocompatibility, and cell adhesion analysis suggest that the new materials are benign and potentially useful for biomedical applications.
Collapse
|
13
|
Wu XL, Huang WM, Lu HB, Wang CC, Cui HP. Characterization of polymeric shape memory materials. JOURNAL OF POLYMER ENGINEERING 2017. [DOI: 10.1515/polyeng-2015-0370] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
After a short discussion of various shape memory related phenomena and the basic working mechanisms behind the shape memory effect (SME) in polymeric shape memory materials (SMMs), standard techniques and procedures to characterize these types of materials are reviewed in details (including the concerns in the selection of testing methods and parameters). Although the focus of this paper is on the heating-responsive SME, important issues in the chemo-responsive SME are addressed. Furthermore, some other shape memory related phenomena, such as various kinds of temperature memory effect (TME), and multiple-SME etc., and optimization of the shape memory performance of a shape memory polymer (SMP) via tailoring the programming parameters are included.
Collapse
|
14
|
Xi Wang T, Min Huang W, Chen H, Xiao R, Bo Lu H, Feng Kang S. Temperature memory effect and its stability revealed via differential scanning calorimetry in ethylene-vinyl acetate within glass transition range. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/polb.24076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tao Xi Wang
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Hongmei Chen
- College of Chemistry and Materials Science; Sichuan Normal University; Chengdu 610066 People's Republic of China
| | - Rui Xiao
- Institute of Soft Matter Mechanics, College of Mechanics and Materials, Hohai University; Nanjing Jiangsu 210098 China
| | - Hai Bo Lu
- Science and Technology on Advanced Composites in Special Environments Laboratory; Harbin Institute of Technology; Harbin 150080 China
| | - Shu Feng Kang
- Shenzhen Woer Heat-Shrinkable Material Co. Ltd; Shenzhen 518118 China
| |
Collapse
|
15
|
Sun L, Wang TX, Leow WC, Huang WM, Cui H, Gao XY. Temperature memory effect in differential scanning calorimeter test in thermoplastic polyurethane. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-0958-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Salvekar AV, Zhou Y, Huang WM, Wong YS, Venkatraman SS, Shen Z, Zhu G, Cui HP. Shape/temperature memory phenomena in un-crosslinked poly-ɛ-caprolactone (PCL). Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.09.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
|
18
|
Gu SY, Liu LL, Gao XF. Triple-shape memory properties of polyurethane/polylactide-polytetramethylene ether blends. POLYM INT 2015. [DOI: 10.1002/pi.4886] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Shu-Ying Gu
- School of Materials Science and Engineering; Tongji University; Shanghai 201804 PR China
- Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, School of Materials Science and Engineering; Tongji University; Shanghai 201804 PR China
| | - Ling-Ling Liu
- School of Materials Science and Engineering; Tongji University; Shanghai 201804 PR China
| | - Xie-Feng Gao
- School of Materials Science and Engineering; Tongji University; Shanghai 201804 PR China
| |
Collapse
|
19
|
Wei M, Zhan M, Yu D, Xie H, He M, Yang K, Wang Y. Novel poly(tetramethylene ether)glycol and poly(ε-caprolactone) based dynamic network via quadruple hydrogen bonding with triple-shape effect and self-healing capacity. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2585-2596. [PMID: 25558885 DOI: 10.1021/am507575z] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel dynamic network was successfully prepared via self-complementary quadruple hydrogen bonding through Upy-telechelic poly(tetremethylene ether) glycol (PTMEG) and four-arm star-shaped poly(ε-caprolactone) ((4)PCL) precursors. The structure and the dynamic feature were identified by FT-IR and (1)H NMR. The differential scanning calorimetry (DSC) analysis indicated that the crystalline PCL and PTMEG segments show a separated melting peak, and the aggregation of Upy dimer was also observed. The dynamic mechanical analyzer (DMA) test reveals that the storage modulus of the network drops evidently across the thermal transition. These characteristics of the network ensure that it exhibits a triple-shape effect, and the composition of the network influences the performance of shape memory effect. The variation of the fixing ratio of the network in each deformation step is quite according to the crystallinity of the dominant segment. The reversibility of the quadruple hydrogen bonding between Upy dimer endues the network with self-healing capacity, and the damage and healing test of the network revealed that increasing the content of the PTMEG segment will be of benefit to self-healing performance.
Collapse
Affiliation(s)
- Min Wei
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610064, China
| | | | | | | | | | | | | |
Collapse
|
20
|
Zhang T, Wen Z, Hui Y, Yang M, Yang K, Zhou Q, Wang Y. Facile fabrication of a well-defined poly(p-dioxanone) dynamic network from metallosupramolecular interactions to obtain an excellent shape-memory effect. Polym Chem 2015. [DOI: 10.1039/c5py00507h] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel poly(p-dioxanone) dynamic network was fabricated from metallosupramolecular interactions via an elaborate synthetic strategy which shows excellent shape-memory performance.
Collapse
Affiliation(s)
- Tianhao Zhang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| | - Zhibin Wen
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| | - Yan Hui
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| | - Mengnan Yang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| | - Keke Yang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| | - Qian Zhou
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| | - Yuzhong Wang
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MOE)
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610064
| |
Collapse
|
21
|
Huang M, Dong X, Wang L, Gao Y, Wang D. Superior shape memory properties and microstructure evolution of poly(ether-b-amide12) elastomer enhanced by poly(ε-caprolactone). RSC Adv 2015. [DOI: 10.1039/c5ra06409k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
While the recovery ratio of PEBA decreases marginally with PCL content, the maximum recovery stresses (σmax) increase greatly despite of the deformation temperature, indicating an enhancement of the recovery stress.
Collapse
Affiliation(s)
- Miaoming Huang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xia Dong
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Lili Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yunyun Gao
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| |
Collapse
|
22
|
Zhou Y, Huang WM. Shape Memory Effect in Polymeric Materials: Mechanisms and Optimization. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.piutam.2014.12.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
23
|
Sun L, Huang WM, Lu H, Lim KJ, Zhou Y, Wang TX, Gao XY. Heating-Responsive Shape-Memory Effect in Thermoplastic Polyurethanes with Low Melt-Flow Index. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400429] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Li Sun
- School of Civil Engineering; Shenyang Jianzhu University; Shenyang 110168 PR China
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore Singapore
| | - Haibao Lu
- Science and Technology on Advanced Composites in Special Environments Laboratory; Harbin Institute of Technology; Harbin 150080 PR China
| | - Kok Jiak Lim
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore Singapore
| | - Ye Zhou
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore Singapore
| | - Tao Xi Wang
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore Singapore
| | - Xiang Yang Gao
- School of Aeronautical Engineering; Northwestern Polytechnical University; Xi'an 710072 PR China
| |
Collapse
|
24
|
Advanced Shape Memory Technology to Reshape Product Design, Manufacturing and Recycling. Polymers (Basel) 2014. [DOI: 10.3390/polym6082287] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
25
|
Wu XL, Kang SF, Xu XJ, Xiao F, Ge XL. Effect of the crosslinking density and programming temperature on the shape fixity and shape recovery in epoxy-anhydride shape-memory polymers. J Appl Polym Sci 2014. [DOI: 10.1002/app.40559] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xue Lian Wu
- School of Mechanical Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 People's Republic of China
| | - Shu Feng Kang
- Shenzhen Woer Heat-Shrinkable Material Company, Limited; Lanjing Road Shenzhen 518118 People's Republic of China
| | - Xiao Jing Xu
- School of Mechanical Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 People's Republic of China
| | - Feng Xiao
- School of Mechanical Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 People's Republic of China
| | - Xiao Lan Ge
- School of Mechanical Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 People's Republic of China
| |
Collapse
|
26
|
Yu K, Liu Y, Leng J. Shape memory polymer/CNT composites and their microwave induced shape memory behaviors. RSC Adv 2014. [DOI: 10.1039/c3ra43258k] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
27
|
Razzaq MY, Behl M, Kratz K, Lendlein A. Triple-shape effect in polymer-based composites by cleverly matching geometry of active component with heating method. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5514-5518. [PMID: 23893389 DOI: 10.1002/adma.201301521] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 06/04/2013] [Indexed: 06/02/2023]
Abstract
A triple-shape effect is created for a segmented device consisting of an active component encapsulated in a highly flexible polymer network. Segments with the same composition but different interface areas can be recovered independently either at specific field strengths (Hsw ) during inductive heating, at a specific time during environmentally heating, or at different airflow during inductive heating at constant H. Herein the type of heating method regulates the sequence order.
Collapse
Affiliation(s)
- M Y Razzaq
- Institute of Biomaterial Science and Berlin-Brandenburg, Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Kantstrasse 55, 14513 Teltow, Germany
| | | | | | | |
Collapse
|
28
|
|
29
|
Wu XL, Huang WM, Ding Z, Tan HX, Yang WG, Sun KY. Characterization of the thermoresponsive shape-memory effect in poly(ether ether ketone) (PEEK). J Appl Polym Sci 2013. [DOI: 10.1002/app.39844] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xue Lian Wu
- School of Mechanical Engineering; Jiangsu University; 301 Xuefu Road Zhenjiang 212013 People's Republic of China
| | - Wei Min Huang
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Zhen Ding
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Hui Xin Tan
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Wen Guang Yang
- Nanjing ComTech Materials Company; Limited, 18 Tangtong Road Nanjing 211162 People's Republic of China
| | - Ke Yuan Sun
- Nanjing ComTech Materials Company; Limited, 18 Tangtong Road Nanjing 211162 People's Republic of China
| |
Collapse
|
30
|
Arrieta JS, Diani J, Gilormini P. Cyclic and monotonic testing of free and constrained recovery properties of a chemically crosslinked acrylate. J Appl Polym Sci 2013. [DOI: 10.1002/app.39813] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- J. Sebastian Arrieta
- Laboratoire PIMM, CNRS; Arts et Métiers ParisTech; 151 bd. de l'Hôpital, 75013 Paris France
| | - Julie Diani
- Laboratoire PIMM, CNRS; Arts et Métiers ParisTech; 151 bd. de l'Hôpital, 75013 Paris France
| | - Pierre Gilormini
- Laboratoire PIMM, CNRS; Arts et Métiers ParisTech; 151 bd. de l'Hôpital, 75013 Paris France
| |
Collapse
|
31
|
Suchao-in K, Chirachanchai S. "Grafting to" as a novel and simple approach for triple-shape memory polymers. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6850-6853. [PMID: 23895373 DOI: 10.1021/am402214j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Maleated-polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (m-SEBS) is a block copolymer with two melting temperatures belonging to soft poly(ethylene-co-butylene) (EB) and hard polystyrene (PS) segments. As EB segments contain anhydride reactive groups, this allows grafting polybutylene succinate (PBS) as another soft segment to m-SEBS backbone to obtain triple-shape memory polymers based on two transition temperatures, i.e., Tm values of EB (at 55-65 °C) and PBS (at 105-115 °C). The present work shows a novel and simple approach of "grafting to" to develop triple-shape memory polymers.
Collapse
Affiliation(s)
- Kanitporn Suchao-in
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, 10330, Thailand
| | | |
Collapse
|
32
|
Paakinaho K, Hukka TI, Kastinen T, Kellomäki M. Demonstrating the mechanism and efficacy of water-induced shape memory and the influence of water on the thermal properties of oriented poly(d,l-lactide). J Appl Polym Sci 2013. [DOI: 10.1002/app.39513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Terttu Inkeri Hukka
- Department of Chemistry and Bioengineering; Tampere University of Technology; Korkeakoulunkatu 8, P.O. Box 541, FI-33101; Tampere; Finland
| | - Tuuva Kastinen
- Department of Chemistry and Bioengineering; Tampere University of Technology; Korkeakoulunkatu 8, P.O. Box 541, FI-33101; Tampere; Finland
| | | |
Collapse
|
33
|
Characterization of shape recovery via creeping and shape memory effect in ether-vinyl acetate copolymer (EVA). JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0150-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
34
|
Iyengar PK, Bhat KA, Sangeetha D, Moorthy TV. Polymethyl methacrylate nanofiber-reinforced epoxy composite for shape-memory applications. HIGH PERFORM POLYM 2013. [DOI: 10.1177/0954008313493102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polymethyl methacrylate (PMMA) nanofiber-reinforced diglycidyl ether of bisphenol A shape memory epoxy composites were fabricated and their shape-memory properties were investigated. The PMMA nanofibers were found to be randomly distributed, while the tensile strength and Young’s modulus increased with increase in the percentage of PMMA. The glass transition temperature of the composites was found to decrease marginally with the addition of PMMA nanofibers. The shape recovery experiments showed that at low strain percentages, the composites exhibited excellent strain recovery. However, at higher strain percentages, the percentage of recovery was found to decrease gradually with increase in filler concentration.
Collapse
Affiliation(s)
- Prasanna Kumar Iyengar
- Department of Manufacturing Engineering, College of Engineering, Anna University, Chennai, Tamil Nadu, India
| | - Kalambettu Aravind Bhat
- Department of Chemistry, College of Engineering, Anna University, Chennai, Tamil Nadu, India
| | - Dharmalingam Sangeetha
- Department of Chemistry, College of Engineering, Anna University, Chennai, Tamil Nadu, India
| | - Tindivanam Vallam Moorthy
- Department of Manufacturing Engineering, College of Engineering, Anna University, Chennai, Tamil Nadu, India
| |
Collapse
|
35
|
Revathi A, Rao S, Rao KV, Singh MM, Murugan MS, Srihari S, Dayananda GN. Effect of strain on the thermomechanical behavior of epoxy based shape memory polymers. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0113-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
36
|
Shaping tissue with shape memory materials. Adv Drug Deliv Rev 2013; 65:515-35. [PMID: 22727746 DOI: 10.1016/j.addr.2012.06.004] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 03/30/2012] [Accepted: 06/13/2012] [Indexed: 01/11/2023]
Abstract
After being severely and quasi-plastically deformed, shape memory materials are able to return to their original shape at the presence of the right stimulus. After a brief presentation about the fundamentals, including various shape memory effects, working mechanisms, and typical shape memory materials for biomedical applications, we summarize some major applications in shaping tissue with shape memory materials. The focus is on some most recent development. Outlook is also discussed at the end of this paper.
Collapse
|
37
|
Biju R, Nair CPR. High transition temperature shape memory polymer composites based on bismaleimide resin. HIGH PERFORM POLYM 2013. [DOI: 10.1177/0954008312470708] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Bismaleimide–allyl phenol polymer system exhibiting shape memory characteristics and possessing transition temperature of up to 220°C ( Ttrans) was synthesized by coreacting 2,2-bis 4[(4-maleimidophenoxy)phenyl]propane (BMIP) and o,o′-diallylbisphenol A (DABA) with a bismaleimide-end-capped poly(tetramethyleneoxide) (BMI-PTMO). BMI-PTMO that served as shape memory polymer was synthesized and characterized using Fourier-transform infrared (FTIR), nuclear magnetic resonance, chemical analysis and size exclusion chromatography. The cured network containing varying proportions of poly(tetramethyleneoxide) was synthesized by varying the concentration of BMI-PTMO in the ternary blend. Cure characteristics were investigated by FTIR, differential scanning calorimetry and rheometry. Elastic memory composites were processed using carbon fabric from varying blend composition at fixed resin to reinforcement ratio. PTMO enhanced the flexibility of the network. The system as a whole possessing high transition temperature, its storage modulus decreased with increase in PTMO content. The polymer possessed good shape recovery characteristics and the recovery time decreased with increasing concentration of the shape memory component. The system showed shape recovery of 88–98% in about a minute at Ttrans. The extent of shape recovery was a direct function of PTMO concentration. The recovery time showed an inverse relationship to the modulus ratio.
Collapse
Affiliation(s)
- R. Biju
- Polymers and Special Chemicals Group, Vikram Sarabhai Space Centre (VSSC), Thiruvananthapuram, Kerala, India
| | - C. P. Reghunadhan Nair
- Polymers and Special Chemicals Group, Vikram Sarabhai Space Centre (VSSC), Thiruvananthapuram, Kerala, India
| |
Collapse
|
38
|
Huang CL, He MJ, Huo M, Du L, Zhan C, Fan CJ, Yang KK, Chin IJ, Wang YZ. A facile method to produce PBS-PEG/CNTs nanocomposites with controllable electro-induced shape memory effect. Polym Chem 2013. [DOI: 10.1039/c3py00461a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
39
|
Abstract
The thermally induced shape memory effect (SME) is the capability of a material to fix a temporary (deformed) shape and recover a 'memorized' permanent shape in response to heat. SMEs in polymers have enabled a variety of applications including deployable space structures, biomedical devices, adaptive optical devices, smart dry adhesives and fasteners. By the incorporation of magnetic nanoparticles (mNP) into shape-memory polymer (SMP), a magnetically controlled SME has been realized. Magnetic actuation of nanocomposites enables remotely controlled devices based on SMP, which might be useful in medical technology, e.g. remotely controlled catheters or drug delivery systems. Here, an overview of the recent advances in the field of magnetic actuation of SMP is presented. Special emphasis is given on the magnetically controlled recovery of SMP with one switching temperature T(sw) (dual-shape effect) or with two T(sw)s (triple-shape effect). The use of magnetic field to change the apparent switching temperature (T(sw,app)) of the dual or triple-shape nanocomposites is described. Finally, the capability of magnetic nanocomposites to remember the magnetic field strength (H) initially used to deform the sample (magnetic-memory effect) is addressed. The distinguished advantages of magnetic heating over conventional heating methods make these multifunctional nanocomposites attractive candidates for in vivo applications.
Collapse
Affiliation(s)
- Muhammad Yasar Razzaq
- Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | | | | |
Collapse
|
40
|
Thermo/chemo-responsive shape memory effect in polymers: a sketch of working mechanisms, fundamentals and optimization. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9952-z] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
41
|
Kalita H, Karak N. Mesua ferrea
L. seed oil-based hyperbranched shape memory polyurethanes: Effect of multifunctional component. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23200] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
42
|
Niu Y, Zhang P, Zhang J, Xiao L, Yang K, Wang Y. Poly(p-dioxanone)–poly(ethylene glycol) network: synthesis, characterization, and its shape memory effect. Polym Chem 2012. [DOI: 10.1039/c2py20311a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|