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Fenimore LM, Bin Rusayyis MA, Onsager CC, Grayson MA, Torkelson JM. Reprocessable Polymer Networks Containing Sulfur-Based, Percolated Dynamic Covalent Cross-Links and Percolated or Non-Percolated, Static Cross-Links. Macromol Rapid Commun 2024:e2400303. [PMID: 38991017 DOI: 10.1002/marc.202400303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/26/2024] [Indexed: 07/13/2024]
Abstract
One method to improve the properties of covalent adaptable networks (CANs) is to reinforce them with a fraction of permanent cross-links without sacrificing their (re)processability. Here, a simple method to synthesize poly(n-hexyl methacrylate) (PHMA) and poly(n-lauryl methacrylate) (PLMA) networks containing static dialkyl disulfide cross-links (utilizing bis(2-methacryloyl)oxyethyl disulfide, or DSDMA, as a permanent cross-linker) and dynamic dialkylamino sulfur-sulfur cross-links (utilizing BiTEMPS methacrylate as a dissociative dynamic covalent cross-linker) is presented. The robustness and (re)processability of the CANs are demonstrated, including the full recovery of cross-link density after recycling. The authors also investigate the effect of static cross-link content on the stress relaxation responses of the CANs with and without percolated, static cross-links. As PHMA and PLMA have very different activation energies of their respective cooperative segmental mobilities, it is shown that the dissociative CANs without percolated, static cross-links have activation energies of stress relaxation that are dominated by the dissociation of BiTEMPS methacrylate cross-links rather than by the cooperative relaxations of backbone segments, i.e., the alpha relaxation. In CANs with percolated, static cross-links, the segmental relaxation of side chains, i.e., the beta relaxation, is critical in allowing for large-scale stress relaxation and governs their activation energies of stress relaxation.
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Affiliation(s)
- Logan M Fenimore
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Mohammed A Bin Rusayyis
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Claire C Onsager
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Matthew A Grayson
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - John M Torkelson
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
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2
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Carbonell-Blasco MP, Moyano MA, Hernández-Fernández C, Sierra-Molero FJ, Pastor IM, Alonso DA, Arán-Aís F, Orgilés-Calpena E. Polyurethane Adhesives with Chemically Debondable Properties via Diels-Alder Bonds. Polymers (Basel) 2023; 16:21. [PMID: 38201686 PMCID: PMC10780649 DOI: 10.3390/polym16010021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Covalent adaptable networks (CANs) represent a pioneering advance in polymer science, offering unprecedented versatility in materials design. Unlike conventional adhesives with irreversible bonds, CAN-based polyurethane adhesives have the unique ability to undergo chemical restructuring through reversible bonds. One of the strategies for incorporating these types of reactions in polyurethanes is by functionalisation with Diels-Alder (DA) adducts. By taking advantage of the reversible nature of the DA chemistry, the adhesive undergoes controlled crosslinking and decrosslinking processes, allowing for precise modulation of bond strength. This adaptability is critical in applications requiring reworkability or recyclability, as it allows for easy disassembly and reassembly of bonded components without compromising the integrity of the material. This study focuses on the sustainable synthesis and characterisation of a solvent-based polyurethane adhesive, obtained by functionalising a polyurethane prepolymer with DA diene and dienophiles. The characterisation of the adhesives was carried out using different experimental techniques: nuclear magnetic resonance spectroscopy (NMR), Brookfield viscosity, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and T-peel strength testing of leather/adhesive/rubber joints to determine the adhesive properties, both before and after the application of external stimuli. The conversion of both the DA and retro-Diels-Alder (r-DA) reactions was confirmed by 1H-NMR. The adhesive properties were not altered by the functionalisation of the adhesive prepolymer, showing similar thermal resistance and good rheological and adhesive properties, even exceeding the most demanding technical requirements for upper-to-sole joints in footwear. After the application of an external thermal stimuli, the bonded materials separated without difficulty and without damage, thus facilitating their separation, recovery and recycling.
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Affiliation(s)
- María Pilar Carbonell-Blasco
- Footwear Technology Centre, Campo Alto Campo, Elda, 03600 Alicante, Spain; (M.A.M.); (C.H.-F.); (F.A.-A.); (E.O.-C.)
| | - María Alejandra Moyano
- Footwear Technology Centre, Campo Alto Campo, Elda, 03600 Alicante, Spain; (M.A.M.); (C.H.-F.); (F.A.-A.); (E.O.-C.)
| | - Carlota Hernández-Fernández
- Footwear Technology Centre, Campo Alto Campo, Elda, 03600 Alicante, Spain; (M.A.M.); (C.H.-F.); (F.A.-A.); (E.O.-C.)
| | - Francisco J. Sierra-Molero
- Department of Organic Chemistry, Institute of Organic Synthesis (ISO), Faculty of Sciences, University of Alicante, P.O. Box 99, 03080 Alicante, Spain; (F.J.S.-M.); (I.M.P.); (D.A.A.)
| | - Isidro M. Pastor
- Department of Organic Chemistry, Institute of Organic Synthesis (ISO), Faculty of Sciences, University of Alicante, P.O. Box 99, 03080 Alicante, Spain; (F.J.S.-M.); (I.M.P.); (D.A.A.)
| | - Diego A. Alonso
- Department of Organic Chemistry, Institute of Organic Synthesis (ISO), Faculty of Sciences, University of Alicante, P.O. Box 99, 03080 Alicante, Spain; (F.J.S.-M.); (I.M.P.); (D.A.A.)
| | - Francisca Arán-Aís
- Footwear Technology Centre, Campo Alto Campo, Elda, 03600 Alicante, Spain; (M.A.M.); (C.H.-F.); (F.A.-A.); (E.O.-C.)
| | - Elena Orgilés-Calpena
- Footwear Technology Centre, Campo Alto Campo, Elda, 03600 Alicante, Spain; (M.A.M.); (C.H.-F.); (F.A.-A.); (E.O.-C.)
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3
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Zhang T, Li Q, Meng F, Ren Y, Shi Z, Wen Y, Liu Q, Zhang Q. Highly Antibacterial and Self-Healing Janus Fabric for Effective Body Moisture/Thermal Management and Durable Waterproof. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38015072 DOI: 10.1021/acsami.3c11860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Despite the development of many functional fabrics, they are unable to meet practical needs due to their monolithic functions and low durability. Therefore, a multifunctional waterborne polyurethane nanodroplet containing disulfide bonds (WSPU) was synthesized using a simple and environmentally friendly approach. The functional WSPU nanodroplet coating endowed fabrics with a variety of properties, including exceptional hydrophobicity, antibacterial properties, self-healing at room temperature, directional transport, etc. The functionalized fabric demonstrated durable mechanical and chemical stabilities due to the combined effects of disulfide bond reconstruction and hydrophobic chain migration. It exhibited the ability to regain its hydrophobic properties at room temperature after 50 friction cycles were performed without requiring external stimulation. Furthermore, the fabric maintained a water contact angle above 140°, even after being subjected to washing, boiling, and immersion in acid and alkali solutions. In addition, as a result of the fabric's Janus-like wettability, it performed various functions in accordance with varying weather conditions, in terms of wearing comfort and breathability. In hot weather or during exercise, the Janus fabric with the hydrophilic side facing outward enhances the process of sweat-directed perspiration, resulting in a notable cooling effect. On rainy days, the Janus fabric, when positioned with the hydrophobic side facing outward, exhibited excellent waterproof performance. This study presents an opportunity to explore the development of multifunctional fabrics through the combined effects of several functions.
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Affiliation(s)
- Tianli Zhang
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Qiang Li
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou 310027, China
| | - Fandong Meng
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou 310027, China
| | - Yongyuan Ren
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou 310027, China
| | - Zhekun Shi
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou 310027, China
| | - Yiqiang Wen
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Quan Liu
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou 310027, China
| | - Qinghua Zhang
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou 324000, China
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou 310027, China
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Maes S, Van Lijsebetten F, Winne JM, Du Prez FE. N-Sulfonyl Urethanes to Design Polyurethane Networks with Temperature-Controlled Dynamicity. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Stephan Maes
- Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC) and Laboratory of Organic Synthesis, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S4, Ghent 9000, Belgium
| | - Filip Van Lijsebetten
- Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC) and Laboratory of Organic Synthesis, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S4, Ghent 9000, Belgium
| | - Johan M. Winne
- Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC) and Laboratory of Organic Synthesis, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S4, Ghent 9000, Belgium
| | - Filip E. Du Prez
- Polymer Chemistry Research Group, Centre of Macromolecular Chemistry (CMaC) and Laboratory of Organic Synthesis, Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S4, Ghent 9000, Belgium
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Self-healing high-performance thermosets utilizing furan/maleimide Diels–Alder, epoxy/amine nucleophilic ring-opening, and maleimide/amine Michael reactions. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03912-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Aljuaid M, Houck HA, Efstathiou S, Haddleton DM, Wilson P. Photocrosslinking of Polyacrylamides Using [2 + 2] Photodimerisation of Monothiomaleimides. Macromolecules 2022; 55:8495-8504. [PMID: 36245549 PMCID: PMC9558485 DOI: 10.1021/acs.macromol.2c01710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/12/2022] [Indexed: 11/30/2022]
Abstract
![]()
The [2 + 2] photocycloaddition of monothiomaleimides
(MTMs) has
been exploited for the photocrosslinking of polyacrylamides. Polymer
scaffolds composed of dimethylacrylamide and varying amounts of d,l-homocysteine
thiolactone acrylamide (5, 10, and 20 mol %) were synthesized via
free-radical polymerization, whereby the latent thiol functionality
was exploited to incorporate MTM motifs. Subsequent exposure to UV
light (λ = 365 nm, 15 mW cm–2) triggered intermolecular
crosslinking via the photodimerization of MTM side chains, thus resulting
in the formation of polyacrylamide gels. The polymer scaffolds were
characterized using Fourier transform infrared spectroscopy, UV–visible
spectroscopy, 1H NMR spectroscopy, and size exclusion chromatography,
confirming the occurrence of the [2 + 2] photocycloaddition between
the MTM moieties. The mechanical and physical properties of the resulting
gels containing various MTM mol % were evaluated by rheology, compression
testing, and swelling experiments. In addition, scanning electron
microscopy was used to characterize the xerogel morphology of 5 and
10 mol % MTM hydro- and organo-gels. The macro-porous morphology obtained
for the hydrogels was attributed to phase separation due to the difference
in solubility of the PDMA modified with thiolactone side chains, provided
that a more homogeneous morphology was obtained when the photo-gels
were prepared in DMF as the solvent.
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Affiliation(s)
- Mohammed Aljuaid
- Department of Chemistry, University of Warwick, Library Road, CoventryCV4 7AL, U.K
- Department of Chemistry, Turabah University College, Taif University, P.O. Box 11099, Taif21944, Saudi Arabia
| | - Hannes A. Houck
- Department of Chemistry, University of Warwick, Library Road, CoventryCV4 7AL, U.K
- Institute of Advanced Study, University of Warwick, CoventryCV4 7AL, U.K
| | - Spyridon Efstathiou
- Department of Chemistry, University of Warwick, Library Road, CoventryCV4 7AL, U.K
| | - David M. Haddleton
- Department of Chemistry, University of Warwick, Library Road, CoventryCV4 7AL, U.K
| | - Paul Wilson
- Department of Chemistry, University of Warwick, Library Road, CoventryCV4 7AL, U.K
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Preparation and Characterization of Self-Healing Polyurethane Powder Coating Using Diels-Alder Reaction. Polymers (Basel) 2021; 13:polym13213803. [PMID: 34771360 PMCID: PMC8586937 DOI: 10.3390/polym13213803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 11/17/2022] Open
Abstract
Although powder coating systems offer many environmental, ecological and energy related benefits over liquid based coatings, in the case of uretdione based polyurethane systems, high curing temperature is still an issue. On the other hand, powder coating systems make it possible to reduce the costs and enhance the process of forming complex 3D structures using the deep drawing method by pre-coated metal substrates. During this processing method, there is a probability of micro crack formation in the coated film due to strain impact on the coating layer. A powder coating with self-healing ability is an ultimate solution to face not only this kind of fraction but also any other possible ones (such as defects caused by any impact on film surface during processing, transporting or even service). Here, a single molecule that is prepared via Diels–Alder cycloaddition reaction and retro Diels–Alder cleavage reaction was utilized as a self-healing additive to achieve self-healing ability in the powder coating system that is based on a commercially available uretdione cross-linker and OH-polyester resin. Coatings were prepared through melt mixing of components in a lab mixer, milling, sieving, and then application on the metal substrate through the electrostatic spraying method. To illustrate the role of self-healing additive, various concentrations (4 and 9% wt.) in combination with different curing temperatures (80 °C to 200 °C) were investigated. Both samples containing HA showed self-healing ability at elevated temperature around 120 °C for about 30 min with acceptable roughness and surface properties. Hardness measurement of cured film as well as thermal investigation indicate the chemical reaction of HA in a cross-linked network of cross-linker and resin. In addition, using HA leads to a 40 K drop in curing temperature of the system without using any catalyst. A 2.58% improvement in hardness values at a lower curing temperature and healing time of around 12.5 min at 120 °C to recover 100% of initial scratch (more than 10 cycles) in the sample containing 9% wt. HA was observed.
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Chen H, Hart LR, Hayes W, Siviour CR. Mechanical characterisation and modelling of a thermoreversible superamolecular polyurethane over a wide range of rates. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123607] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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A Self‐healing and Thermal Radiation Shielding Magnetic Polyurethane of Reducing Retro Diels–Alder Reaction Temperature. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01970-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Aguirresarobe RH, Nevejans S, Reck B, Irusta L, Sardon H, Asua JM, Ballard N. Healable and self-healing polyurethanes using dynamic chemistry. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101362] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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12
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High Performance of Thermoplastic Polyurethane-Graphene Oxide Self-Healing Composite Film. COATINGS 2021. [DOI: 10.3390/coatings11020128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Graphene oxide (GO) sheets were dispersed into N, N-dimethylformamide (DMF) solution by ultrasonication and then mixed with thermoplastic polyurethane (TPU) solution uniformly, and further fabricated to GO-TPU film by casting process. The thermal properties, infrared photothermal response, and self-healing performance of the GO-TPU film were systematically investigated. The experimental results demonstrate that the thermal conductivity of GO-TPU film with 4 wt % GO and the initial concentration of 20 wt % TPU is 0.3719 W·m−1·K−1, which is 83.8% increase compared to pure TPU. The GO-TPU film has excellent infrared light-to-heat conversion efficiency. The infrared light-to-heat conversion efficiency of the GO-TPU film with 7 wt % GO and the initial concentration of 20 wt % TPU reaches the maximum, and the temperature increased by 63% compared to pure TPU, reaching 165.6 °C. The scratches on the GO-TPU composite film can be completely healed after being irradiated by infrared light for 10 min, which shows that the GO-TPU composite film has good self-healing properties.
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Tian S. Recent Advances in Functional Polyurethane and Its Application in Leather Manufacture: A Review. Polymers (Basel) 2020; 12:E1996. [PMID: 32887324 PMCID: PMC7565108 DOI: 10.3390/polym12091996] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/23/2020] [Accepted: 08/29/2020] [Indexed: 11/30/2022] Open
Abstract
Over last few years, polyurethane (PU) has been applied in a number of areas because of its remarkable features, such as excellent mechanical strength, good abrasion resistance, toughness, low temperature flexibility, etc. More specifically, PU can be easily "tailor made" to meet specific demands. This structure-property relationship endows great potential for use in wider applications. With the improvement of living standards, ordinary polyurethane products cannot meet people's growing needs for comfort, quality, and novelty. This has recently drawn enormous commercial and academic attention to the development of functional polyurethane. Among the major applications, PU is one of the prominent retanning agents and coating materials in leather manufacturing. This review gives a summary of academic study in the field of functional PU as well as its recent application in leather manufacture.
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Affiliation(s)
- Saiqi Tian
- College of Education, Wenzhou University, Wenzhou 325035, China
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16
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Sugane K, Takagi R, Shibata M. Thermally healable/heat-resistant properties of thermosets bearing dynamic and thermally stable bonds formed by the Diels-Alder and thiol-maleimide “click” reactions. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Chung CH, Liu WC, Hong JL. Superhydrophobic Melamine Sponge Modified by Cross-Linked Urea Network as Recyclable Oil Absorbent Materials. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01595] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chih-Hsiang Chung
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Wan-Chen Liu
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Jin-Long Hong
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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18
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Polymer engineering based on reversible covalent chemistry: A promising innovative pathway towards new materials and new functionalities. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.03.002] [Citation(s) in RCA: 307] [Impact Index Per Article: 51.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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19
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Self-healing 8-armed star-shaped ɛ-caprolactone oligomers dually crosslinked by the Diels-Alder and urethanization reactions. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.04.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Becker G, Marquetant TA, Wagner M, Wurm FR. Multifunctional Poly(phosphoester)s for Reversible Diels–Alder Postmodification To Tune the LCST in Water. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01716] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Greta Becker
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
- Graduate School
Materials Science in Mainz, Staudinger
Weg 9, 55128 Mainz, Germany
| | | | - Manfred Wagner
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Frederik R. Wurm
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
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Feng L, Yu Z, Bian Y, Lu J, Shi X, Chai C. Self-healing behavior of polyurethanes based on dual actions of thermo-reversible Diels-Alder reaction and thermal movement of molecular chains. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.07.049] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Laquièvre A, Barrau S, Fournier D, Stoclet G, Woisel P, Lefebvre JM. Thermally reversible crosslinked copolymers: Solution and bulk behavior. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Wu S, Li J, Zhang G, Yao Y, Li G, Sun R, Wong C. Ultrafast Self-Healing Nanocomposites via Infrared Laser and Their Application in Flexible Electronics. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3040-3049. [PMID: 28059495 DOI: 10.1021/acsami.6b15476] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The continuous evolution toward flexible electronics with mechanical robust property and restoring structure simultaneously places high demand on a set of polymeric material substrate. Herein, we describe a composite material composed of a polyurethane based on Diels-Alder chemistry (PU-DA) covalently linked with functionalized graphene nanosheets (FGNS), which shows mechanical robust and infrared (IR) laser self-healing properties at ambient conditions and is therefore suitable for flexible substrate applications. The mechanical strength can be tuned by varying the amount of FGNS and breaking strength can reach as high as 36 MPa with only 0.5 wt % FGNS loading. On rupture, the initial mechanical properties are restored with more than 96% healing efficiency after 1 min irradiation time by 980 nm IR laser. Especially, this is the highest value of healing efficiency reported in the self-healable materials based on DA chemistry systems until now, and the composite exhibits a high volume resistivity up to 5.6 × 1011 Ω·cm even the loading of FGNS increased to 1.0 wt %. Moreover, the conductivity of the broken electric circuit which was fabricated by silver paste drop-cast on the healable composite substrate was completely recovered via IR laser irradiating bottom substrate mimicking human skin. These results demonstrate that the FGNS-PU-DA nanocomposite can be used as self-healing flexible substrate for the next generation of intelligent flexible electronics.
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Affiliation(s)
- Shuwen Wu
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
- Nano Science and Technology Institute, University of Science and Technology of China (USTC) , Suzhou 215123, China
| | - Jinhui Li
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
| | - Guoping Zhang
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Yimin Yao
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
| | - Gang Li
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
| | - Rong Sun
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
| | - Chingping Wong
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
- Faculty of Engineering, the Chinese University of Hong Kong 999077, Hong Kong, China
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Du P, Jia H, Chen Q, Zheng Z, Wang X, Chen D. Slightly crosslinked polyurethane with Diels-Alder adducts from trimethylolpropane. J Appl Polym Sci 2016. [DOI: 10.1002/app.43971] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Pengfei Du
- Quangang Petrochemical Research Institute; Fujian Normal University; Quanzhou 362807 China
| | - Haiyan Jia
- School of Chemistry and Chemical Technology; Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites (Shanghai Jiao Tong University); Shanghai 200240 China
| | - Qinghua Chen
- Quangang Petrochemical Research Institute; Fujian Normal University; Quanzhou 362807 China
| | - Zhen Zheng
- School of Chemistry and Chemical Technology; Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites (Shanghai Jiao Tong University); Shanghai 200240 China
| | - Xinling Wang
- School of Chemistry and Chemical Technology; Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites (Shanghai Jiao Tong University); Shanghai 200240 China
| | - Denglong Chen
- Quangang Petrochemical Research Institute; Fujian Normal University; Quanzhou 362807 China
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Fortman DJ, Brutman JP, Cramer CJ, Hillmyer MA, Dichtel WR. Mechanically Activated, Catalyst-Free Polyhydroxyurethane Vitrimers. J Am Chem Soc 2015; 137:14019-22. [DOI: 10.1021/jacs.5b08084] [Citation(s) in RCA: 459] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- David J. Fortman
- Department
of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, New York 14853-1301, United States
| | - Jacob P. Brutman
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Christopher J. Cramer
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - William R. Dichtel
- Department
of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, New York 14853-1301, United States
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26
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Kötteritzsch J, Hager MD, Schubert US. Tuning the self-healing behavior of one-component intrinsic polymers. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Kuhl N, Bode S, Hager MD, Schubert US. Self-Healing Polymers Based on Reversible Covalent Bonds. SELF-HEALING MATERIALS 2015. [DOI: 10.1007/12_2015_336] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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