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Wang T, Chen Y, Chen B, Suazo MJ, Purwanto NS, Torkelson JM. Reprocessable, Self-Healing, and Creep-Resistant Covalent Adaptable Network Made from Chain-Growth Monomers with Dynamic Covalent Thionourethane and Disulfide Cross-Links. ACS Macro Lett 2024; 13:1147-1155. [PMID: 39150319 DOI: 10.1021/acsmacrolett.4c00391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
We synthesized covalent adaptable networks (CANs) made from chain-growth comonomers using nonisocyanate thiourethane chemistry. We derivatized glycidyl methacrylate with cyclic dithiocarbonate (GMA-DTC), did a free-radical polymerization of n-hexyl methacrylate with GMA-DTC to obtain a statistical copolymer with 8 mol % GMA-DTC, and cross-linked it with difunctional amine. The dynamic covalent thionourethane and disulfide bonds lead to CAN reprocessability with full recovery of the cross-link density; the temperature dependence of the rubbery plateau modulus indicates that associative character dominates the dynamic response. The CAN exhibits complete self-healing at 110 °C with tensile property recovery and excellent creep resistance at 90-100 °C. Stress relaxation at 140-170 °C reveals an activation energy of 105 ± 6 kJ/mol, equal to the activation energy (Ea) of the CAN poly(n-hexyl methacrylate) backbone α-relaxation. We hypothesize that CANs with exclusively or predominantly associative dynamics have their stress-relaxation Ea defined by the α-relaxation Ea. This hypothesis is supported by stress relaxation studies on a similar poly(n-lauryl methacrylate)-based CAN.
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Affiliation(s)
- Tong Wang
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208 United States
| | - Yixuan Chen
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208 United States
| | - Boran Chen
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208 United States
| | - Mathew J Suazo
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 United States
| | - Nathan S Purwanto
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 United States
| | - John M Torkelson
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208 United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 United States
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Hang G, Liu W, Shakir U, Zhang T, Zheng S. Self-healable and reprocessable networks of Poly(propylene oxide) with POSS crosslinked with disulfide bonds. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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3
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Liu W, Ge W, Mei H, Hang G, Li L, Zheng S. Poly(hydroxyurethane‐
co
‐thiourethane)s cross‐linked with disulfide bonds: Synthesis via isocyanate‐free approach, thermomechanical and reprocessing properties. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Weiming Liu
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai PR China
| | - Wenming Ge
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai PR China
| | - Honggang Mei
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai PR China
| | - Guohua Hang
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai PR China
| | - Lei Li
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai PR China
| | - Sixun Zheng
- Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai PR China
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Xu B, Yin Q, Su C, Cheng J, Zhang J, Zhao J. High-Performance Nonisocyanate Thermoplastic Polythiourethane with High Hydrogen Bond Content. ACS Macro Lett 2022; 11:517-524. [PMID: 35575343 DOI: 10.1021/acsmacrolett.2c00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nonisocyanate polyurethane (NIPU) has been extensively studied because of its sustainability potential. However, the low reactivity of five-membered cyclocarbonates with amines and the side reactions at higher temperatures always sacrifice the performance of NIPUs. In this work, a bisphenol-S cyclic thiocarbonate and different amino-terminated dimer-acid polyamides (DAPAs) were used to prepare nonisocyanate polythiourethanes (SPTU-DAs). Wherein bisphenol-S acts as a hard segment due to a π-π package, plentiful hydrogen bonds introduced by DAPA units induce crystallization and nanophase separation. They both endow the NIPUs with high mechanical performance. Meanwhile, active cyclic thiocarbonate, instead of cyclic carbonate, ensures rapid synthesis under mild conditions without side reactions. The experimental results of DSC, WAXD, and DMA confirmed the existence of crystallization of SPTU-DAs. The as-prepared thermoplastic polythiourethane has a maximum strength of more than 10 MPa, which is stronger than those of the cross-linked nonisocyanate polythiourethanes reported. It is of key significance to obtain the high performance of nonisocyanate polythiourethanes.
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Affiliation(s)
- Bowen Xu
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Qichen Yin
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Chang Su
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Jue Cheng
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Junying Zhang
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Jingbo Zhao
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
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Liu W, Hang G, Mei H, Li L, Zheng S. Nanocomposites of Polyhydroxyurethane with POSS Microdomains: Synthesis via Non-Isocyanate Approach, Morphologies and Reprocessing Properties. Polymers (Basel) 2022; 14:1331. [PMID: 35406205 PMCID: PMC9002781 DOI: 10.3390/polym14071331] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 01/27/2023] Open
Abstract
In this contribution, we reported the synthesis of a novel trifunctional POSS cyclic carbonate [POSS-3(5CC)]. With a difunctional five-member cyclic carbonate and a trifunctional polyetheramine as the precursor, the nanocomposites of polyhydroxyurethane (PHU) with POSS were synthesized. Transmission electron microscopy (TEM) showed that the nanocomposites of PHUs with POSS were microphase-separated; the spherical POSS microdomains via POSS-POSS interactions were generated with the size of 20~40 nm in diameter. After the introduction of POSS microdomains, the nanocomposites displayed improved thermal and mechanical properties. More importantly, the nanocomposites still displayed the reprocessing properties of vitrimers.
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Affiliation(s)
| | | | | | - Lei Li
- Department of Polymer Science and Engineering, The State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; (W.L.); (G.H.); (H.M.)
| | - Sixun Zheng
- Department of Polymer Science and Engineering, The State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; (W.L.); (G.H.); (H.M.)
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Qu Q, Wang H, He J, Da Y, Zhu M, Liu Y, Tian X. Synthesis and properties of responsive self-healing polyurethane containing dynamic disulfide bonds. HIGH PERFORM POLYM 2021. [DOI: 10.1177/09540083211022818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The polymers with pH responsiveness and temperature sensitivity exhibit important applications in many fields. To endow the responsive polymers with self-healing is meaningful work, which contributes to increase their service life and reduce waste of resources significantly. In this research, a series of pH-responsive polyurethanes containing dynamic disulfide bonds and carboxylic acid functional groups were prepared by mixing polycaprolactone diol (PCL), hexamethylene diisocyanate (HDI), 2,2-dimethylolbutyric acid, and bis(2-hydroxyethyl) disulfide. The structure of the polymer was confirmed by some characterization methods such as infrared absorption spectroscopy, Raman scattering spectroscopy, X-ray diffraction, and differential scanning calorimetry. Many performances of the polymer such as the contact angle, thermal stability, mechanics, and self-healing properties can be adjusted by changing the functional units of polyurethanes. The dynamic disulfide bonds in the main chain were observed no harm to the pH response performance, instead which were beneficial to the promotion of heat resistance, tensile properties, and self-healing performance of polyurethane. The elongation at break and the tensile strength are increased by 85.3% and 54.9%, respectively. All the polyurethane exhibited considerable self-healing effects at 110°C, with the highest healing efficiency reaching 93.7%, as a result of the dissociation of hydrogen bonds and the exchange reaction of disulfide bonds.
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Affiliation(s)
- Qiqi Qu
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - Hua Wang
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
| | - Jing He
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - Yunsheng Da
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - Menghan Zhu
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - Yanyan Liu
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
| | - Xingyou Tian
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, China
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Gong T, Guo L, Ye J, He L, Qiu T, Li X. A post curing strategy toward the feasible covalent adaptable networks in polyacrylate latex films. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tianyu Gong
- State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing China
| | - Longhai Guo
- State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing China
| | - Jun Ye
- State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing China
| | - Lifan He
- State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing China
| | - Teng Qiu
- State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing China
| | - Xiaoyu Li
- State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing China
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Pronoitis C, Hakkarainen M, Odelius K. Long-chain polyamide covalent adaptable networks based on renewable ethylene brassylate and disulfide exchange. Polym Chem 2021. [DOI: 10.1039/d1py00811k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Long-chain polyamide covalent adaptable networks with high strength and short relaxation times were prepared based on a renewable ethylene brassylate and disulfide exchange.
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Affiliation(s)
- Charalampos Pronoitis
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 100 44 Stockholm, Sweden
| | - Minna Hakkarainen
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 100 44 Stockholm, Sweden
| | - Karin Odelius
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 100 44 Stockholm, Sweden
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