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Stern T. Single-Step Synthesis and Characterization of Non-Linear Tough and Strong Segmented Polyurethane Elastomer Consisting of Very Short Hard and Soft Segments and Hierarchical Side-Reacted Networks and Single-Step Synthesis of Hierarchical Hyper-Branched Polyurethane. Molecules 2024; 29:1420. [PMID: 38611700 PMCID: PMC11013183 DOI: 10.3390/molecules29071420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Polyurethane elastomers are among the most versatile classes of industrial polymers-typically achieved through a two-step synthesis of segmented block copolymers, comprising very long and soft segments that provide elasticity and significantly long and hard segments that provide strength. The present research focused on the design of a single-step synthesis of a new segmented polyurethane consisting of very short soft and hard segments, crosslinked by preferentially side-reacted hierarchical tertiary oligo-uret network structures, thus exhibiting significant strength, elasticity, and toughness. Despite the theoretically linear structure, both FTIR and solid-state 13C NMR spectroscopy analyses indicated the quasi-equal presence of urethane groups and tertiary oligo-uret structures in the resulting polymer, indicating a preferential consecutive side reaction mechanism. Thermal analysis indicated the significant crystallization of soft segments consisting of only four ethylene oxide units, which was, hereby, demonstrated to occur via an extended chain mechanism. Tensile mechanical properties included significant strength, elasticity, and toughness. Increasing the soft segment length led to a decreased tertiary oligo-uret secondary crosslinking efficacy. The preferential hierarchical side reaction mechanism was, hereby, further confirmed through the synthesis of a completely new type of hyper-branched polymer via diisocyanate and a mono-hydroxy-terminated reagent. The structure-property relations and reaction mechanisms demonstrated in the present research can facilitate the design of new polyurethanes of enhanced performance and processing efficacy for a variety of novel applications.
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Affiliation(s)
- Theodor Stern
- Department of Chemical Engineering, Biotechnology and Materials, Faculty of Engineering, Ariel University, Ariel 40700, Israel
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2
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Wang Y, Shao J, Zhu P, Wang L, Wang D, Dong X. Brill Transition in Polyamide 1012 Multiblock Poly(tetramethylene oxide) Copolymers: The Effect of Composition on Hydrogen-Bonding Organization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Wang
- CAS Key Laboratory of Engineer Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jianming Shao
- CAS Key Laboratory of Engineer Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ping Zhu
- CAS Key Laboratory of Engineer Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lei Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Dujin Wang
- CAS Key Laboratory of Engineer Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xia Dong
- CAS Key Laboratory of Engineer Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Fu XB, Zhang T, Yang JC, Zhang G, Zhang ML, Wang XJ, Yang J. Structures and properties of newly synthesized semi-aromatic polyamide thermoplastic elastomers. Polym Chem 2022. [DOI: 10.1039/d2py00541g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel semi-aromatic polyamide based thermoplastic elastomers containing both strong and weak H-bond units were fabricated via a facile “two-step” melt polycondensation method. The structures and properties of a series of TPAEs are discussed.
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Affiliation(s)
- Xiao-bo Fu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Tong Zhang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Jia-cao Yang
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Gang Zhang
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Mei-lin Zhang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Xiao-jun Wang
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Jie Yang
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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4
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Wang Y, Zhu P, Lai Y, Wang L, Wang D, Dong X. Effect of crosslinking networks on strain-induced crystallization in polyamide 1012 multiblock Poly(tetramethylene oxide) copolymers. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123802] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Wang Y, Wang Z, Zhu P, Liu X, Wang L, Dong X, Wang D. Microphase separation/crosslinking competition-based ternary microstructure evolution of poly(ether- b-amide). RSC Adv 2021; 11:6934-6942. [PMID: 35423183 PMCID: PMC8694882 DOI: 10.1039/d0ra10627e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 01/24/2021] [Indexed: 11/25/2022] Open
Abstract
The temperature dependence of the rheological properties of poly(ether-b-amide) (PEBA) segmented copolymer under oscillatory shear flow has been investigated. The magnitude of the dynamic storage modulus is affected by the physical microphase separation and irreversible crosslinking network, with the latter spontaneously forming between the polyamide segments and becoming the dominant factor in determining the microstructural evolution at temperatures well above the melting point of PEBA. From the rheological results, the initial temperature of the rheological properties dominated by the microphase separation and crosslinking (T cross) structures were determined, respectively. Based on the two obtained temperatures, the microstructure evolution upon the heating can be separated into the ternary microstructure domains: homogenous (temperature below ), microphase separation dominating (between and T cross), and crosslinking dominating domains (above T cross). When the PEBA is heated to above T cross, the content of crosslinking network increases with time and temperature, leading to an irreversible and non-negligible influence on the rheological, crystallization, and mechanical properties. A more pronounced strain-hardening phenomenon during the uniaxial stretching is observed for the sample with a higher content of crosslinking network.
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Affiliation(s)
- Yu Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 P. R. China
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Zefan Wang
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Ping Zhu
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Xinran Liu
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Science Beijing 100049 P. R. China
| | - Lei Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 P. R. China
| | - Xia Dong
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Science Beijing 100049 P. R. China
| | - Dujin Wang
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Science Beijing 100049 P. R. China
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6
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Jiang J, Tang Q, Pan X, Xi Z, Zhao L, Yuan W. Structure and Morphology of Thermoplastic Polyamide Elastomer Based on Long-Chain Polyamide 1212 and Renewable Poly(trimethylene glycol). Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01334] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Jiang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qiuyu Tang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xun Pan
- Flinders Institute for Nanoscale Science and Technology, Flinders University, Sturt Road, Bedford Park, South Australia 5042, Australia
| | - Zhenhao Xi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ling Zhao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China
| | - Weikang Yuan
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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7
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Cao Y, Pang Y, Dong X, Wang D, Zheng W. Cell Structure Variation in Poly(ether-mb-amide) Copolymer Foams Induced by Chemi-Crystallization. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01580] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yiyu Cao
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Polymers and Composites Laboratory, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongyan Pang
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Polymers and Composites Laboratory, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, China
| | - Xia Dong
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Dujin Wang
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wenge Zheng
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Polymers and Composites Laboratory, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, China
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8
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Cao Y, Zhu P, Zhou Y, Wang D, Dong X. Influence of soft block and film thickness on confined morphology of poly(ether‐
mb
‐amide) multiblock copolymers. POLYMER CRYSTALLIZATION 2020. [DOI: 10.1002/pcr2.10100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yiyu Cao
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
- Key Laboratory of Bio‐based Polymeric Materials Technology and Application of Zhejiang Province, Polymers and Composites DivisionNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo China
| | - Ping Zhu
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Yong Zhou
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Dujin Wang
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Xia Dong
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
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9
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Yu D, Zhao J, Wang W, Qi J, Hu Y. Mono-acrylated isosorbide as a bio-based monomer for the improvement of thermal and mechanical properties of poly(methyl methacrylate). RSC Adv 2019; 9:35532-35538. [PMID: 35528083 PMCID: PMC9074741 DOI: 10.1039/c9ra07548h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 10/15/2019] [Indexed: 11/21/2022] Open
Abstract
Despite its optical clarity and good weatherability, poly(methyl methacrylate) (PMMA) cannot meet the needs of special occasions due to its deficient thermal and mechanical properties. To overcome these shortcomings, a type of novel bio-based monomer, mono-acrylated isosorbide, was used as a comonomer for the poly(methyl methacrylate) via a solution polymerization process. The chemical structure, the thermal and mechanical properties of the copolymerized PMMA were characterized. When the molar content of the mono-acrylated isosorbide was increased from 0% to 15%, the glass transition temperature Tg of the copolymerized PMMA was increased from 151.2 °C to 172.5 °C, and the initial decomposition temperature (T5%) was increased from 323.1 °C to 396.3 °C. Moreover, the impact strength of copolymerized PMMA increased from 10.59 kJ m−2 to 17.19 kJ m−2 and the tensile strength improved from 84.02 MPa to 97.56 MPa when the mono-acrylated isosorbide was incorporated with different contents. The incorporation of rigid and thermally stable isosorbide could contribute to the improved thermal and mechanical properties of PMMA, which would find important applications in the military and aeronautical materials under harsh service environments. With bio-based monoester of acrylated isosorbide as the comonomer, copolymerized poly(methyl methacrylate) showed improved thermal stability and mechanical properties.![]()
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Affiliation(s)
- Dinghua Yu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86-25-58139389 +86-25-58139386
| | - Juan Zhao
- College of Pharmaceutical Science, Nanjing Tech University Nanjing 211816 China
| | - Wenjuan Wang
- College of Pharmaceutical Science, Nanjing Tech University Nanjing 211816 China
| | - Jingjie Qi
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 China +86-25-58139389 +86-25-58139386
| | - Yi Hu
- College of Pharmaceutical Science, Nanjing Tech University Nanjing 211816 China
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10
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Qin J, Jiang J, Ye S, Wang S, Xiao M, Tao Y, Jie G, Meng Y. High performance poly(urethane-co-amide) from CO2-based dicarbamate: an alternative to long chain polyamide. RSC Adv 2019; 9:26080-26090. [PMID: 35531034 PMCID: PMC9070367 DOI: 10.1039/c9ra04646a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/09/2019] [Indexed: 11/21/2022] Open
Abstract
Due to its high strength, toughness, corrosion resistance and wear resistance, long chain polyamide (LCPA) has attracted broad interest. Nevertheless, its wide application in industrial fields is still being restricted because the starting material acquisition step involving diacid and diamine remains a major obstacle. Herein, we circumvent this obstacle by developing a novel polymer with similar properties by a green and efficient copolymerization process of carbon dioxide (CO2)-based dicarbamate with diamide diol under vacuum conditions, named poly(urethane-co-amide) (PUA). The semi-crystalline PUAs with high number-weight-average molecular weights (Mn, up to 41.3 kDa) were readily obtained, and these new polymers show high thermal stability (above 300 °C). Thanks to its unique chain structure, the amide, urethane and urea groups can endow the polymer with a high density cross-linking network via hydrogen bonds and high crystallinity that can result in high strength, up to 54.0 MPa. The dynamic thermomechanical analysis (DMA) results suggest that the phase separation exists within the new polymers, endowing the PUAs with a toughness higher than that of long chain polyamides. Consequently, this work not only develops a useful new polymer like commercial polyamides with high performance as a long chain polyamide candidate, but also provides a new way of utilizating CO2. A novel high performance polymer like long carbon-chain nylon was synthesized via a green and efficient copolymerization from CO2-based dicarbamate.![]()
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Affiliation(s)
- Jiaxiang Qin
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Junqiao Jiang
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Shuxian Ye
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Shuanjin Wang
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Min Xiao
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
| | - Youji Tao
- State Key Laboratory of Environmental Adaptability for Industrial Products
- China National Electric Apparatus Research Institute Co., Ltd
- Guangzhou
- P. R. China
| | - Ganxin Jie
- State Key Laboratory of Environmental Adaptability for Industrial Products
- China National Electric Apparatus Research Institute Co., Ltd
- Guangzhou
- P. R. China
| | - Yuezhong Meng
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Materials Science and Engineering
- Sun Yat-sen University
- Guangzhou 510275
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11
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Cao Y, Zhu P, Wang Z, Zhou Y, Chen H, Müller AJ, Wang D, Dong X. Influence of soft block crystallization on microstructural variation of double crystalline poly(ether‐
mb
‐amide) multiblock copolymers. POLYMER CRYSTALLIZATION 2018. [DOI: 10.1002/pcr2.10012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yiyu Cao
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Ping Zhu
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Zefan Wang
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Yong Zhou
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Haiming Chen
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Alejandro J. Müller
- POLYMAT and Polymer Science and Technology Department, Faculty of ChemistryUniversity of the Basque Country UPV/EHU Donostia‐San Sebastián Spain
- IkerbasqueBasque Foundation for Science Bilbao Spain
| | - Dujin Wang
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Xia Dong
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
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12
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Huang M, Zheng L, Wang L, Dong X, Gao X, Li C, Wang D. Double Crystalline Multiblock Copolymers with Controlling Microstructure for High Shape Memory Fixity and Recovery. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30046-30055. [PMID: 28805064 DOI: 10.1021/acsami.7b08403] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The shape memory performance of double crystalline poly(butylene succinate)-co-poly(ε-caprolactone) (PBS-co-PCL) multiblock copolymers with controlling microstructure was studied, and the corresponding microstructure origin was further quantitatively analyzed by wide and small-angle X-ray scattering (WAXS and SAXS) experiments. It was found that the multiblock copolymer with higher PCL content, proper deformation strain, and inhibited crystallization of PBS (lower crystallinity and smaller crystal size, which could be realized by quenching from the melt) would exhibit better shape memory fixity and recovery performance. WAXS and SAXS results revealed that the shape fixity ratio (Rf) was closely related with the relative crystallinity of the PCL component, while the shape recovery ratio (Rr) strongly relied on the deformation and recovery behavior of the PBS and PCL components that changed along with compositions and deformation strains. For the copolymer with higher PCL content (BS30CL70), at the lower deformation strain (0% ∼ 90%), both the PBS and PCL components after recovery had no orientation (labeled as stage I), resulting in almost complete recovery; with the deformation strain increasing (90% ∼ 200%), it was the irreversible deformation of the PCL component that largely took responsibility for the decreased Rr (stage II). On the contrary, when the PCL content decreased to 50 wt % (BS50CL50), stage I (0% ∼ 50%) and stage II (50% ∼ 100%) appeared in much lower strains; with the deformation strain increasing (100% ∼ 200%), the irreversible deformation of both PBS and PCL components was mainly responsible for the further reduction of Rr (stage III). It could exhibit excellent shape memory performance for biodegradable double crystalline multiblock copolymers by controlling the composition, deformation strain, and crystallization, which might have wide application prospects in biomedical areas.
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Affiliation(s)
- Miaoming Huang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R. China
- Beijing Key Laboratory of Organic Materials Testing Technology & Quality Evaluation, Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical & Chemical Analysis , Beijing 100089, P.R. China
| | - Liuchun Zheng
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R. China
| | - Lili Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Xia Dong
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Xia Gao
- Beijing Key Laboratory of Organic Materials Testing Technology & Quality Evaluation, Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical & Chemical Analysis , Beijing 100089, P.R. China
| | - Chuncheng Li
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R. China
| | - Dujin Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
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13
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The structure evolution of polyamide 1212 after stretched at different temperatures and its correlation with mechanical properties. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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The effect of microstructural evolution during deformation on the post-yielding behavior of self-associated polyamide blends. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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