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Liu W, Wang A, Yang R, Wu H, Shao S, Chen J, Ma Y, Li Z, Wang Y, He X, Li J, Tan H, Fu Q. Water-Triggered Stiffening of Shape-Memory Polyurethanes Composed of Hard Backbone Dangling PEG Soft Segments. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201914. [PMID: 35502474 DOI: 10.1002/adma.202201914] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/19/2022] [Indexed: 02/05/2023]
Abstract
Shape-memory polymers (SMPs) induced by heat or water are commonly used candidates for biomedical applications. Shape recovery inevitably leads to a dramatic decrease of Young's modulus due to the enhanced flexibility of polymer chains at the transition temperature. Herein, the principle of phase-transition-induced stiffening of shape-memory metallic alloys (SMAs) is introduced to the design of molecular structures for shape-memory polyurethane (SMPUs), featuring all-hard segments composed of main chains that are attached with poly(ethylene glycol) (PEG) dangling side chains. Different from conventional SMPs, they achieve a soft-to-stiff transition when shape recovers. The stiffening process is driven by water-triggered segmental rearrangement due to the incompatibility between the hard segments and the soft PEG segments. Upon hydration, the extent of microphase separation is enhanced and the hard domains are transformed to a more continuous morphology to realize more effective stress transfer. Meanwhile, such segmental rearrangement facilitates the shape-recovery process in the hydrated state despite the final increased glass transition temperature (Tg ). This work represents a novel paradigm of simultaneously integrating balanced mechanics, shape-memory property, and biocompatibility for SMPUs as materials for minimally invasive surgery such as endoluminal stents.
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Affiliation(s)
- Wenkai Liu
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Ao Wang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Ruibo Yang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Hecheng Wu
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Shuren Shao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Jinlin Chen
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Yan Ma
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Zhen Li
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Yanchao Wang
- Department of Neurosurgery West China Hospital Sichuan University Chengdu Sichuan 610000 China
| | - Xueling He
- Laboratory Animal Center of Sichuan University Chengdu 610041 China
| | - Jiehua Li
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Hong Tan
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
| | - Qiang Fu
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center of Materials Sichuan University Chengdu 610065 China
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Park S, Moon J, Kim B, Cho M. Multi-scale coarse-grained molecular dynamics simulation to investigate the thermo-mechanical behavior of shape-memory polyurethane copolymers. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123228] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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3
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The Difference in Molecular Orientation and Interphase Structure of SiO 2/Shape Memory Polyurethane in Original, Programmed and Recovered States during Shape Memory Process. Polymers (Basel) 2020; 12:polym12091994. [PMID: 32887279 PMCID: PMC7564273 DOI: 10.3390/polym12091994] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 12/17/2022] Open
Abstract
In order to further understand the shape memory mechanism of a silicon dioxide/shape memory polyurethane (SiO2/SMPU) composite, the thermodynamic properties and shape memory behaviors of prepared SiO2/SMPU were characterized. Dynamic changes in the molecular orientation and interphase structures of SiO2/SMPU during a shape memory cycle were then discussed according to the small angle X-ray scattering theory, Guinier’s law, Porod approximation, and fractal dimension theorem. In this paper, a dynamic mechanical analyzer (DMA) helped to determine the glass transition start temperature (Tg) by taking the onset point of the sigmoidal change in the storage modulus, while transition temperature (Ttrans) was defined by the peak of tan δ, then the test and the calculated results indicated that the Tg of SiO2/SMPU was 50.4 °C, and the Ttrans of SiO2/SMPU was 72.18 °C. SiO2/SMPU showed good shape memory performance. The programmed SiO2/SMPU showed quite obvious microphase separation and molecular orientation. Large-size sheets and long-period structures were formed in the programmed SiO2/SMPU, which increases the electron density difference. Furthermore, some hard segments had been rearranged, and their gyration radii decreased. In addition, several defects formed at the interfaces of SiO2/SMPU, which caused the generation of space charges, thus leading to local electron density fluctuations. The blurred interphase structure and the intermediate layer formed in the programmed SiO2/SMPU and there was evident crystal damage and chemical bond breakage in the recovered SiO2/SMPU. Finally, the original and recovered SiO2/SMPU samples belong to the surface fractal system, but the programmed sample belongs to the mass fractal and reforms two-phase structures. This study provides an insight into the shape memory mechanism of the SiO2/SMPU composite.
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Xu Z, Cui Y, Li T, Dang H, Li J, Cheng F. Enhanced Mechanical and Shape Memory Properties of Poly(propylene glycol)‐Based Star‐Shaped Polyurethane. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhaozan Xu
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
| | - Yangli Cui
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
| | - Tingting Li
- Department of Materials EngineeringTaiyuan Institute of Technology Taiyuan 030008 China
| | - Haichun Dang
- Department of Materials EngineeringTaiyuan Institute of Technology Taiyuan 030008 China
| | - Jianfeng Li
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
| | - Fangqin Cheng
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
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Song X, Chi H, Li Z, Li T, Wang F. Star-Shaped Crosslinker for Multifunctional Shape Memory Polyurethane. Polymers (Basel) 2020; 12:polym12040740. [PMID: 32224862 PMCID: PMC7240373 DOI: 10.3390/polym12040740] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/24/2020] [Accepted: 03/24/2020] [Indexed: 11/16/2022] Open
Abstract
Star-shaped cyclophosphazene (ACP) was employed as covalent crosslinker to form a rigid segment in polyurethanes network, to enhance the mechanical performance and to add extra flame retardant property. The effects of different ACP contents on the shape memory ability and fire resistance performance of polyurethane (PU) were studied. Tensile tests suggested high flexibility of the PUs with the maximum elongation-at-break of 161.59%. Dynamic mechanical analysis (DMA) indicated good shape recovery ratio of 72.58% after more than three repeated cycles. Under thermal treatment, the temporary shape could recover to its original state in 10 s. The peak heat release rate (pHRR), total heat released (THR) and temperature at pHRR (Tp) of flame-retardant shape memory polyurethane (FSPU) by micro-combustion calorimeter (MCC) was as low as 183.2 W/g, 21.4 KJ/g, 330.8 °C respectively, suggesting good inherent fire-resistant performance. As amine-containing crosslinkers are one of the most common building units in thermosetting polymers, we anticipate that our finding will have significant benefits beyond shape memory and fire-resistance.
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Affiliation(s)
- Xiuhuan Song
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hong Chi
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- Correspondence: (H.C.); (F.W.)
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Tianduo Li
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - FuKe Wang
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
- Correspondence: (H.C.); (F.W.)
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Sevinis Ozbulut EB, Seven S, Bilge K, Akkas T, Tas CE, Yildiz B, Atilgan C, Menceloglu YZ, Unal S. Blends of highly branched and linear poly(arylene ether sulfone)s: Multiscale effect of the degree of branching on the morphology and mechanical properties. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Li J, Wong WY, Tao XM. Recent advances in soft functional materials: preparation, functions and applications. NANOSCALE 2020; 12:1281-1306. [PMID: 31912063 DOI: 10.1039/c9nr07035d] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Synthetic materials and biomaterials with elastic moduli lower than 10 MPa are generally considered as soft materials. Research studies on soft materials have been boosted due to their intriguing features such as light-weight, low modulus, stretchability, and a diverse range of functions including sensing, actuating, insulating and transporting. They are ideal materials for applications in smart textiles, flexible devices and wearable electronics. On the other hand, benefiting from the advances in materials science and chemistry, novel soft materials with tailored properties and functions could be prepared to fulfil the specific requirements. In this review, the current progress of soft materials, ranging from materials design, preparation and application are critically summarized based on three categories, namely gels, foams and elastomers. The chemical, physical and electrical properties and the applications are elaborated. This review aims to provide a comprehensive overview of soft materials to researchers in different disciplines.
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Affiliation(s)
- Jun Li
- Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Xiao-Ming Tao
- Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
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Ghermezcheshme H, Makki H, Mohseni M, Ebrahimi M, de With G. MARTINI-based simulation method for step-growth polymerization and its analysis by size exclusion characterization: a case study of cross-linked polyurethane. Phys Chem Chem Phys 2019; 21:21603-21614. [PMID: 31544200 DOI: 10.1039/c9cp03407b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simulation studies of step-growth polymerization, e.g., polymerization of polyurethane systems, hold great promise due to having complete control over the reaction conditions and being able to perform an in-depth analysis of network structures. In this work, we developed a (completely automated) simulation method based on a coarse-grained (CG) methodology, i.e., the MARTINI model, to study the cross-linking reaction of a diol, a tri-isocyanate molecule and one-hydroxyl functional molecule to form a polyurethane network without and with dangling chains. This method is capable of simulating the cross-linking reactions not only up to very high conversions, but also under rather complicated reaction conditions, i.e., a non-stoichiometric ratio of the reactants, solvent evaporation and multi-step addition of the reactants. We introduced a novel network analysis, similar to size-exclusion chromatography based on graph theory, to study the growth of the network during the polymerization process. By combining the reaction simulations with these analysis methods, a set of correlations between the reaction conditions, reaction mechanisms and final network structure and properties is revealed. For instance, a two-step addition of materials for the reaction, i.e., first the dangling chain to the tri-isocyanate and then the diol, leads to the highest integrated network structure. We observed that different reaction conditions lead to different glass transition temperatures (Tg) of the network due to the distinct differences in the final network structures obtained. For example, by addition of dangling chains to the network, the Tg decreases as compared to the network without dangling chains, as also is commonly observed experimentally.
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Affiliation(s)
- Hassan Ghermezcheshme
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 424 Hafez Ave., Tehran, Iran.
| | - Hesam Makki
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 424 Hafez Ave., Tehran, Iran.
| | - Mohsen Mohseni
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 424 Hafez Ave., Tehran, Iran.
| | - Morteza Ebrahimi
- Department of Polymer and Color Engineering, Amirkabir University of Technology, 424 Hafez Ave., Tehran, Iran.
| | - Gijsbertus de With
- Laboratory of Physical Chemistry, Department of Chemical Engineering & Chemistry, Eindhoven University of Technology, POB 513, NL-5600 MB Eindhoven, The Netherlands
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10
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Avaz Seven S, Oguz O, Menceloglu YZ, Atilgan C. Tuning Interaction Parameters of Thermoplastic Polyurethanes in a Binary Solvent To Achieve Precise Control over Microphase Separation. J Chem Inf Model 2019; 59:1946-1956. [DOI: 10.1021/acs.jcim.8b00781] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Senem Avaz Seven
- Sabanci University, Faculty of Engineering and Natural Sciences, 34956, Istanbul, Turkey
- Sabanci University Integrated Manufacturing Technologies Research and Application Center & Composite Technologies Center of Excellence, Teknopark, 34906 Pendik, Istanbul, Turkey
| | - Oguzhan Oguz
- École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Laboratory of Macromolecular and Organic Materials, 1015, Lausanne, Switzerland
| | - Yusuf Ziya Menceloglu
- Sabanci University, Faculty of Engineering and Natural Sciences, 34956, Istanbul, Turkey
- Sabanci University Integrated Manufacturing Technologies Research and Application Center & Composite Technologies Center of Excellence, Teknopark, 34906 Pendik, Istanbul, Turkey
- Sabanci University Nanotechnology Research and Application Center, SUNUM, 34956, Istanbul, Turkey
| | - Canan Atilgan
- Sabanci University, Faculty of Engineering and Natural Sciences, 34956, Istanbul, Turkey
- Sabanci University Nanotechnology Research and Application Center, SUNUM, 34956, Istanbul, Turkey
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11
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Pan L, Ban J, Ren L, Zhang Z, Peng Q, Lu S. The influence of liquid crystals on the properties of sisal fibre polyurethanes with multi-shape memory effects. NEW J CHEM 2019. [DOI: 10.1039/c8nj05791e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
LC-SF-SMPUs show excellent multi-shape memory properties.
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Affiliation(s)
- Lulu Pan
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Jianfeng Ban
- College of Chemical Engineering
- Guangdong University of Petrochemical Technology
- Maoming
- China
| | - Li Ren
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Zuocai Zhang
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Qingyuan Peng
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Shaorong Lu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
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12
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Lu C, Liu Y, Yu J, Wang C, Wang J, Chu F. Fabrication of well-defined shape memory graft polymers derived from biomass: An insight into the effect of side chain architecture on shape memory properties. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chuanwei Lu
- National Engineering Laboratory of Biomass Chemical Utilization; Key and Laboratory of Forest Chemical Engineering, SFA; Key Laboratory of Biomass Energy and Material; Institute of Chemical Industry of Forest Products, CAF; Nanjing Jiangsu Province 210042 China
| | - Yupeng Liu
- National Engineering Laboratory of Biomass Chemical Utilization; Key and Laboratory of Forest Chemical Engineering, SFA; Key Laboratory of Biomass Energy and Material; Institute of Chemical Industry of Forest Products, CAF; Nanjing Jiangsu Province 210042 China
| | - Juan Yu
- Nanjing Forestry University; Nanjing 210037 China
| | - Chunpeng Wang
- National Engineering Laboratory of Biomass Chemical Utilization; Key and Laboratory of Forest Chemical Engineering, SFA; Key Laboratory of Biomass Energy and Material; Institute of Chemical Industry of Forest Products, CAF; Nanjing Jiangsu Province 210042 China
| | - Jifu Wang
- National Engineering Laboratory of Biomass Chemical Utilization; Key and Laboratory of Forest Chemical Engineering, SFA; Key Laboratory of Biomass Energy and Material; Institute of Chemical Industry of Forest Products, CAF; Nanjing Jiangsu Province 210042 China
| | - Fuxiang Chu
- National Engineering Laboratory of Biomass Chemical Utilization; Key and Laboratory of Forest Chemical Engineering, SFA; Key Laboratory of Biomass Energy and Material; Institute of Chemical Industry of Forest Products, CAF; Nanjing Jiangsu Province 210042 China
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13
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Pan L, Xiong Z, Song L, Ban J, Lu S. Synthesis and characterization of sisal fibre polyurethane network cross-linked with triple-shape memory properties. NEW J CHEM 2018. [DOI: 10.1039/c8nj00181b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, a thermo-responsive network shape-memory polymer (SMP) which has high elasticity, triple shape-memory properties and rapid shape recovery effects was reported.
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Affiliation(s)
- Lulu Pan
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Zhongqiang Xiong
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Laifu Song
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
| | - Jianfeng Ban
- College of Chemical Engineering
- Guangdong University of Petrochemical Technology
- Maoming
- China
| | - Shaorong Lu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin
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14
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Shi S, Shen D, Xu T. Microstructural and mechanical property evolutions of shape memory polyurethane during a thermodynamic cycle. J Appl Polym Sci 2017. [DOI: 10.1002/app.45703] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuang Shi
- School of Civil Engineering; Nanjing Forestry University, 159, Longpan Road; Nanjing 210037 Jiangsu China
| | - Dongya Shen
- School of Civil Engineering; Nanjing Forestry University, 159, Longpan Road; Nanjing 210037 Jiangsu China
| | - Tao Xu
- School of Civil Engineering; Nanjing Forestry University, 159, Longpan Road; Nanjing 210037 Jiangsu China
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Zhang Y, Li W, Wu R, Wang W. PU/PMMA composites synthesized by reaction-induced phase separation: a general approach to achieve a shape memory effect. RSC Adv 2017. [DOI: 10.1039/c7ra05206e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report a study on the triple-shape memory polymer composition of polyurethane/polymethyl methacrylate (PU/PMMA) synthesized using reaction-induced phase separation.
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Affiliation(s)
- Yufen Zhang
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Urumqi 830046
- China
| | - Weiwei Li
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Urumqi 830046
- China
| | - Ronglan Wu
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Urumqi 830046
- China
| | - Wei Wang
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Urumqi 830046
- China
- Department of Chemistry and Centre for Pharmacy
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