1
|
Tran HTT, Nisha SS, Radjef R, Nikzad M, Bjekovic R, Fox B. Recyclable and Biobased Vitrimers for Carbon Fibre-Reinforced Composites-A Review. Polymers (Basel) 2024; 16:1025. [PMID: 38674946 PMCID: PMC11054932 DOI: 10.3390/polym16081025] [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: 03/04/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Economic and environmental concerns over the accumulation of end-of-life carbon fibre composite waste have led to increased attention to sustainable materials with low environmental impact. Over decades of research, vitrimers, a modern class of covalent adaptable networks, have bridged the gap between thermoplastics and thermosets. With the distinguishing feature of dynamic covalent bonds, vitrimers can be rearranged and reprocessed within their existing network structures in response to external stimuli such as heat or light. This poses a unique solution to repairing damaged composites, extending their service life, and reducing post-consumer waste. However, the synthesis of vitrimers often requires petrochemical consumption, which increases their carbon footprint. Using bio-based materials could be a promising solution to reduce the reliance on petrochemicals and their related pollution. This review compiles the contemporary requirements for bio-based vitrimers regarding their properties, scalability, and recycling features. This article also presents a comprehensive overview of the pathways to produce sustainable bio-based vitrimers and an overview of promising studies showing the potential uses of bio-derived vitrimers on carbon fibre composite productions.
Collapse
Affiliation(s)
- Hoang T. T. Tran
- Department of Mechanical Engineering and Product Design Engineering, Swinburne University of Technology, Melbourne, Victoria 3122, Australia; (S.S.N.); (R.R.); (M.N.)
| | - Shammi Sultana Nisha
- Department of Mechanical Engineering and Product Design Engineering, Swinburne University of Technology, Melbourne, Victoria 3122, Australia; (S.S.N.); (R.R.); (M.N.)
| | - Racim Radjef
- Department of Mechanical Engineering and Product Design Engineering, Swinburne University of Technology, Melbourne, Victoria 3122, Australia; (S.S.N.); (R.R.); (M.N.)
| | - Mostafa Nikzad
- Department of Mechanical Engineering and Product Design Engineering, Swinburne University of Technology, Melbourne, Victoria 3122, Australia; (S.S.N.); (R.R.); (M.N.)
| | - Robert Bjekovic
- Faculty of Mechanical Engineering, University of Applied Sciences Ravensburg-Weingarten, 88250 Weingarten, Germany;
| | - Bronwyn Fox
- Department of Mechanical Engineering and Product Design Engineering, Swinburne University of Technology, Melbourne, Victoria 3122, Australia; (S.S.N.); (R.R.); (M.N.)
| |
Collapse
|
2
|
Huang L, Li Y, Zheng Z, Bai Y, Russell TP, He C. Flexible, transparent, and sustainable cellulose-based films for organic solar cell substrates. MATERIALS HORIZONS 2024; 11:1560-1566. [PMID: 38263927 DOI: 10.1039/d3mh01998e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Cellulose, often considered a highly promising substitute for petroleum-based plastics, offers several compelling advantages, including abundant availability, cost-effectiveness, environmental friendliness, and biodegradability. However, its inherent highly crystalline structure and extensive hydrogen-bonded network pose challenges for processing and recycling. In this study, we introduce the concept of cellulose vitrimers (CVs), wherein dynamic bonds are incorporated to reconfigure the hydrogen-bonded network, resulting in a mechanically robust, highly transparent material. CVs exhibit exceptional malleability, thermal stability, and noteworthy resistance to water and solvents. Due to the dynamic bond disassociation, CVs can be effectively chemically recycled using a well-established "dissolution-and-reforming" process. Moreover, CVs have proven successful as flexible substrate materials for organic solar cells, outperforming traditional petroleum-based polyethylene naphthalate (PEN). Given these advantages, CVs have the potential to replace conventional petroleum-based materials as recyclable and environmentally friendly alternatives, particularly within the realm of electronic devices and displays.
Collapse
Affiliation(s)
- Lewen Huang
- School of Chemistry and Chemical Engineering, Gannan Normal University, 341000, Ganzhou, China.
| | - Yibao Li
- School of Chemistry and Chemical Engineering, Gannan Normal University, 341000, Ganzhou, China.
| | - Zhong Zheng
- School of Chemistry and Biology Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yun Bai
- School of Chemistry and Chemical Engineering, Gannan Normal University, 341000, Ganzhou, China.
| | - Thomas P Russell
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA.
- Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - Changfei He
- School of Chemistry and Chemical Engineering, Gannan Normal University, 341000, Ganzhou, China.
| |
Collapse
|
3
|
Han T, Ju B, Zhang S. Catalyst-free readily dual-recyclable acetal-based covalent adaptable cellulose networks. Int J Biol Macromol 2024; 261:129563. [PMID: 38278382 DOI: 10.1016/j.ijbiomac.2024.129563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/18/2023] [Accepted: 01/15/2024] [Indexed: 01/28/2024]
Abstract
Despite covalent adaptable networks (CANs) imparting the favorable features of crosslinked polymers, as well as the functionality of reprocessing, reshaping and welding, due to exchange reaction enabled topology changes; it is still a huge challenge to design catalyst-free, fast reprocessing, controlled degradation and polymer recyclable biomass base CANs. Herein, for the first time, acetal-based covalent adaptable cellulose networks (ACCs) were utilized to synthesize readily reconstructable cellulose-based thermosets with mechanical tunability. ACCs were synthesized via catalyst-free "click" addition of cellulose and divinyl ether without releasing small molecule byproducts. Different crosslinking densities and crosslinkers were used to explore the structure-property relationship, the mechanical and thermal properties of the ACCs were strongly influenced by these factors. ACCs can obtain enhanced tensile strength or elongation at break by changing the structure of the crosslinker. Furthermore, the reworking, welding and shape memory properties of these ACCs, based on the dynamic exchange reaction of acetal bonds, were investigated. In addition, these ACCs can be degraded under acidic conditions, and closed-loop utilization of polymer was possible. Thus, ACCs can be mechanically and chemically double-cycled, which will contribute to solving the white pollution problem and resource waste as a new class of sustainable plastics.
Collapse
Affiliation(s)
- Tengfei Han
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Benzhi Ju
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.
| |
Collapse
|
4
|
Shikh Zahari SMSN, Liu Y, Yao P, Ideris MS, Azman HH, Hallett JP. OPEFB pretreatment using the low-cost N,N,N-dimethylbutylammonium hydrogen sulfate ionic liquid under varying conditions. Sci Rep 2023; 13:22354. [PMID: 38102175 PMCID: PMC10724162 DOI: 10.1038/s41598-023-48722-0] [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: 08/06/2023] [Accepted: 11/29/2023] [Indexed: 12/17/2023] Open
Abstract
This study investigates the effects of temperature and period on the pretreatment of OPEFB using the low-cost N,N,N-dimethylbutylammonium hydrogen sulfate ionic liquid ([DMBA][HSO4] IL) with 20 wt% of water. The results demonstrate that higher pretreatment temperatures (120, 150, and 170 °C) and longer periods (0.5, 1, and 2 h) enhanced lignin recovery, resulting in increased purity of the recovered pulp and subsequently enhanced glucose released during enzymatic hydrolysis. However, at 170 °C, prolonging the period led to cellulose degradation and the formation of pseudo-lignin deposited on the pulps, resulting in a decreasing-trend in glucose released. Finally, the analysis of extracted lignin reveals that increasing pretreatment severity intensified lignin depolymerisation and condensation, leading to a decrease in number average molecular weight (Mn), weight average molecular weight (Mw) and polydispersity index (Đ) values.
Collapse
Affiliation(s)
- S M Shahrul Nizan Shikh Zahari
- Department of Chemical Engineering, Faculty of Engineering, South Kensington Campus, Imperial College London, London, SW72AZ, UK.
- Industrial Chemical Technology Programme, Faculty of Science and Technology, Universiti Sains Islam Malaysia, Bandar Baru Nilai, 71800, Nilai, Negeri Sembilan, Malaysia.
| | - Yichen Liu
- Department of Chemical Engineering, Faculty of Engineering, South Kensington Campus, Imperial College London, London, SW72AZ, UK
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, Sichuan, People's Republic of China
| | - Putian Yao
- Department of Chemical Engineering, Faculty of Engineering, South Kensington Campus, Imperial College London, London, SW72AZ, UK
| | - Mahfuzah Samirah Ideris
- Industrial Chemical Technology Programme, Faculty of Science and Technology, Universiti Sains Islam Malaysia, Bandar Baru Nilai, 71800, Nilai, Negeri Sembilan, Malaysia
| | - Hazeeq Hazwan Azman
- Centre for Foundation and General Studies, Universiti Selangor, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor Darul Ehsan, Malaysia
| | - Jason P Hallett
- Department of Chemical Engineering, Faculty of Engineering, South Kensington Campus, Imperial College London, London, SW72AZ, UK.
| |
Collapse
|
5
|
Stewart KA, Lessard JJ, Cantor AJ, Rynk JF, Bailey LS, Sumerlin BS. High-performance polyimine vitrimers from an aromatic bio-based scaffold. RSC APPLIED POLYMERS 2023; 1:10-18. [PMID: 38013907 PMCID: PMC10540462 DOI: 10.1039/d3lp00019b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/18/2023] [Indexed: 11/29/2023]
Abstract
Bio-based vitrimers represent a promising class of thermosetting polymer materials, pairing the recyclability of dynamic covalent networks with the renewability of non-fossil fuel feedstocks. Vanillin, a low-cost lignin derivative, enables facile construction of polyimine networks marked by rapid exchange and sensitivity to acid-catalyzed hydrolysis. Furthermore, the aromatic structure makes it a promising candidate for the design of highly aromatic networks capable of high-performance thermal and dimensional stability. Such properties are paramount in polymeric thermal protection systems. Here, we report on the fabrication of polyimine networks with particularly high aromatic content from a novel trifunctional vanillin monomer prepared from the nucleophilic aromatic substitution of perfluoropyridine (PFP) on a multi-gram scale (>20 g) in high yield (86%). The trifunctional aromatic scaffold was then crosslinked with various diamines to demonstrate tunable viscoelastic behavior and thermal properties, with glass transition temperatures (Tg) ranging from 9 to 147 °C, degradation temperatures (5% mass loss) up to approximately 370 °C, and excellent char yields up to 68% at 650 °C under nitrogen. Moreover, the vitrimers displayed mechanical reprocessability over five destruction/healing cycles and rapid chemical recyclability following acidic hydrolysis at mild temperatures. Our findings indicate that vitrimers possessing tunable properties and high-performance thermomechanical behavior can be easily constructed from vanillin and electrophilic aromatic scaffolds for applications in heat-shielding materials and ablative coatings.
Collapse
Affiliation(s)
- Kevin A Stewart
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Jacob J Lessard
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Alexander J Cantor
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - John F Rynk
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Laura S Bailey
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida Gainesville Florida 32611 USA
| |
Collapse
|
6
|
Sougrati L, Duval A, Avérous L. From Lignins to Renewable Aromatic Vitrimers based on Vinylogous Urethane. CHEMSUSCHEM 2023:e202300792. [PMID: 37486785 DOI: 10.1002/cssc.202300792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
During the two last decades, covalent adaptable networks (CANs) have proven to be an important new class of polymer materials combining the main advantages of thermoplastics and thermosets. For instance, materials can undergo reprocessing cycles by incorporating dynamic covalent bonds within a cross-linked network. Due to their versatility, renewable resources can be easily integrated into these innovative systems to develop sustainable materials, which can be related to the context of the recent development of a circular bioeconomy. Lignins, the main renewable sources of aromatic structures, are major candidates in the design of novel and biobased stimuli-responsive materials such as vitrimers due to their high functionality and specific chemical architectures. In the aim of developing recyclable lignin-based vinylogous urethane (VU) networks, an innovative strategy was elaborated in which lignin was first modified into liquid polyols and then into polyacetoacetates. Resulting macromonomers were integrated into aromatic VU networks and fully characterized through thermal, mechanical, and rheological experiments. Viscoelastic behaviors of the different aromatic vitrimers exhibited fast stress-relaxations (e. g., 39 s at 130 °C) allowing easy and fast mechanical reprocessing. A thermomechanical recycling study was successfully performed. Then, the developed strategy enabled the fabrication of healable biobased aromatic vitrimers with tunable structures and properties.
Collapse
Affiliation(s)
- Lisa Sougrati
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, Cedex 2, France
| | - Antoine Duval
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, Cedex 2, France
- Soprema, 15 rue de Saint Nazaire, 67100, Strasbourg, France
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, Cedex 2, France
| |
Collapse
|
7
|
Zhao F, Tian PX, Li YD, Weng Y, Zeng JB. Fabrication of well-dispersed cellulose nanocrystal reinforced biobased epoxy composites using reversibility of covalent adaptable network. Int J Biol Macromol 2023:125202. [PMID: 37270117 DOI: 10.1016/j.ijbiomac.2023.125202] [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: 02/20/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
Cellulose nanocrystal (CNC) shows great potential in reinforced composites but it is difficult to disperse in epoxy thermosets due to its poor dispersity in epoxy monomers. Herein, we reported a novel approach to disperse CNC in epoxidized soybean oil (ESO)-derived epoxy thermosets uniformly by using the reversibility of dynamic imine-containing ESO-derived covalent adaptable network (CAN). The crosslinked CAN was deconstructed by an exchange reaction with ethylenediamine (EDA) in dimethyl formamide (DMF), leading to a solution of deconstructed CAN with plenty of hydroxyl and amino groups, which could form strong hydrogen bonds with hydroxyl groups of CNC and thus facilitated and stabilized dispersion of CNC in the deconstructed CAN solution. Epoxy composite with well-dispersed CNC was finally achieved by a reformation of CAN through the removal of DMF and EDA. In this way, the epoxy composites with CNC content up to 30 wt% were successfully prepared and showed drastically reinforced mechanical properties. The tensile strength and Young's modulus of the CAN were improved by up to ~70 % and ~45 times with the incorporation of 20 and 30 wt% CNC, respectively. The composites showed excellent reprocessability without significant loss in mechanical properties after reprocessing.
Collapse
Affiliation(s)
- Fen Zhao
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Pei-Xiu Tian
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yi-Dong Li
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Jian-Bing Zeng
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| |
Collapse
|
8
|
Feng Z, Zhao W, Jin L, Zhang J, Xue B, Ni Y. Environmentally friendly strategy to access self-healable, reprocessable and recyclable chitin, chitosan, and sodium alginate based polysaccharide-vitrimer hybrid materials. Int J Biol Macromol 2023; 240:124531. [PMID: 37085067 DOI: 10.1016/j.ijbiomac.2023.124531] [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: 02/11/2023] [Revised: 04/13/2023] [Accepted: 04/16/2023] [Indexed: 04/23/2023]
Abstract
Natural polysaccharides show enviable advantages for preparation of sustainable hybrid materials. However, in most cases, complex chemical modifications of natural polysaccharides are required, which not only causes changes of the inherent properties of polysaccharides, but also increases the manufacturing costs of the final materials. Therefore, it is highly desired to develop efficient and low-cost ways to access polysaccharides-containing hybrid materials. In this work, we report the environmentally friendly preparation of a new kind of polysaccharide-based materials, called polysaccharide-vitrimer hybrid materials, for the first time. The vitrimer synthesis and hybridization with polysaccharides can be achieved via a convenient one-pot method in absence of solvent and catalyst. In addition, time-consuming and labor-intensive physical/chemical modifications of natural polysaccharides are completely avoided. The resultant hybrid materials show good mechanical performance (tensile toughness is up to 13.7 MJ/m3), high thermal stability (Td,max is up to 457 °C), fast self-healing ability (self-healing efficiency is up to 99 % within 20s at 80 °C) and excellent reprocessability and recyclability (at least three cycles). Especially, conductive polysaccharide-vitrimer hybrid materials could be readily prepared from the resultant materials, exhibiting novel applications as flexible sensors and electromagnetic shielding materials (the EMI SE is up to 24.93 dB).
Collapse
Affiliation(s)
- Zihao Feng
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China; Key Laboratory of Paper Based Functional Materials, China National Light Industry, Xi'an 710021, PR China; Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi'an 710021, PR China
| | - Wei Zhao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China; Key Laboratory of Paper Based Functional Materials, China National Light Industry, Xi'an 710021, PR China; Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi'an 710021, PR China.
| | - Liuping Jin
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China; Key Laboratory of Paper Based Functional Materials, China National Light Industry, Xi'an 710021, PR China; Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi'an 710021, PR China
| | - Jiarong Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Bailiang Xue
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China; Key Laboratory of Paper Based Functional Materials, China National Light Industry, Xi'an 710021, PR China; Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi'an 710021, PR China
| | - Yonghao Ni
- Department of Chemical Engineering, University of New Brunswick, Fredericton E3B 5A3, New Brunswick, Canada; Department of Chemical and biomedical Engineering, University of Maine, Orono, ME 04469, USA
| |
Collapse
|
9
|
Re-produced and moisture-sensitive covalent adaptable networks based on non-isocyanate polyurethanes. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
|
10
|
Li F, Nguyen GTM, Vancaeyzeele C, Vidal F, Plesse C. Healable Ionoelastomer Designed from Polymeric Ionic Liquid and Vitrimer Chemistry. ACS APPLIED POLYMER MATERIALS 2023; 5:529-541. [PMID: 36686061 PMCID: PMC9844214 DOI: 10.1021/acsapm.2c01635] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/21/2022] [Indexed: 05/27/2023]
Abstract
The growing demand for all-solid flexible, stretchable, and wearable devices has boosted the need for liquid-free and stretchable ionoelastomers. These ionic conducting materials are subjected to repeated deformations during functioning, making them susceptible to damage. Thus, imparting cross-linked materials with healing ability seems particularly promising to improve their durability. Here, a polymeric ionic liquid (PIL) bearing allyl functional groups was synthesized based on the quaternization of N-allylimidazole with a copolymer rubber of poly(epichlorohydrin) and poly(ethylene oxide) (PEO). The resulting PIL was then cross-linked with dynamic boronic ester cross-linkers 2,2'-(1,4-Phenylene)-bis[4-mercaptan-1,3,2-dioxaborolane] (BDB) through thiol-ene "click" photoaddition. PEO dangling chains were additionally introduced for acting as free volume enhancers. The properties of the resulting all-solid PIL networks were investigated by tuning dynamic cross-linkers and dangling chain contents. Adjusting the cross-linker and dangling chain quantities yielded soft (0.2 MPa), stretchable (300%), and highly conducting ionoelastomers (1.6 × 10-5 S·cm-1 at 30 °C). The associative exchange reaction between BDB endowed these materials with vitrimer properties such as healing and recyclability. The recycled materials were able to retain their original mechanical properties and ionic conductivity. These healable PIL networks display a great potential for applications requiring solid electrolytes with high ionic conductivity, healing ability, and reprocessability.
Collapse
|
11
|
Tao Y, Liang X, Zhang J, Lei IM, Liu J. Polyurethane vitrimers: Chemistry, properties and applications. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yue Tao
- Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen China
| | - Xiangyu Liang
- Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen China
- Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural Sciences Shenzhen China
- Institute of Bast Fiber Crops and Center of Southern Economic Crops Chinese Academy of Agricultural Sciences Changsha China
| | - Jun Zhang
- Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen China
| | - Iek Man Lei
- Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen China
- Department of Electromechanical Engineering, Faculty of Science and Technology University of Macau Macau China
| | - Ji Liu
- Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen China
| |
Collapse
|
12
|
Bio-Vitrimers for Sustainable Circular Bio-Economy. Polymers (Basel) 2022; 14:polym14204338. [PMID: 36297916 PMCID: PMC9606967 DOI: 10.3390/polym14204338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The aim to achieve sustainable development goals (SDG) and cut CO2-emission is forcing researchers to develop bio-based materials over conventional polymers. Since most of the established bio-based polymeric materials demonstrate prominent sustainability, however, performance, cost, and durability limit their utilization in real-time applications. Additionally, a sustainable circular bioeconomy (CE) ensures SDGs deliver material production, where it ceases the linear approach from production to waste. Simultaneously, sustainable circular bio-economy promoted materials should exhibit the prominent properties to involve and substitute conventional materials. These interceptions can be resolved through state-of-the-art bio-vitrimeric materials that display durability/mechanical properties such as thermosets and processability/malleability such as thermoplastics. This article emphasizes the current need for vitrimers based on bio-derived chemicals; as well as to summarize the developed bio-based vitrimers (including reprocessing, recycling and self-healing properties) and their requirements for a sustainable circular economy in future prospects.
Collapse
|
13
|
Lin L, Su Z, Zhang H, Zhou G, Zhou H, Ren J, Wang X, Liu C, Wang X. Thermo-processable chitosan-based plastic substitute with self-adaptiveness and closed-loop recyclability. Carbohydr Polym 2022; 291:119479. [DOI: 10.1016/j.carbpol.2022.119479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/25/2022] [Accepted: 04/10/2022] [Indexed: 11/02/2022]
|
14
|
Chen Y, Chang Y, Rwei S. Synthesis and characterization of ultra‐tough crosslinked polyamide with hybrid polymer networks equipping strong hydrogen bonds. J Appl Polym Sci 2022. [DOI: 10.1002/app.52830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yu‐Hao Chen
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology National Taipei University of Technology Taipei Taiwan
| | - Yun Chang
- Department of Molecular Science and Engineering National Taipei University of Technology Taipei Taiwan
| | - Syang‐Peng Rwei
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology National Taipei University of Technology Taipei Taiwan
- Department of Molecular Science and Engineering National Taipei University of Technology Taipei Taiwan
| |
Collapse
|
15
|
Chen T, Zhang D, Tian X, Qiang S, Sun C, Dai L, Zhang M, Ni Y, Jiang X. Highly ordered asymmetric cellulose-based honeycomb membrane for moisture-electricity generation and humidity sensing. Carbohydr Polym 2022; 294:119809. [DOI: 10.1016/j.carbpol.2022.119809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/15/2022] [Accepted: 06/28/2022] [Indexed: 11/24/2022]
|
16
|
Abdur Rashid M, Liu W, Wei Y, Jiang Q. Review of reversible dynamic bonds containing intrinsically flame retardant biomass thermosets. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
17
|
Multi-slice Ni-doped brochantite modified and polymer crosslinked cellulose paper with high wet stability and oil repellency for water disposal. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
18
|
Lucherelli MA, Duval A, Avérous L. Biobased vitrimers: Towards sustainable and adaptable performing polymer materials. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101515] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
19
|
Vidil T, Llevot A. Fully Biobased Vitrimers: Future Direction Towards Sustainable Cross‐Linked Polymers. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100494] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas Vidil
- University of Bordeaux CNRS Bordeaux INP Laboratoire de Chimie des Polymères Organiques UMR 5629, ENSCBP, 16 avenue Pey‐Berland Pessac cedex F‐33607 France
| | - Audrey Llevot
- University of Bordeaux CNRS Bordeaux INP Laboratoire de Chimie des Polymères Organiques UMR 5629, ENSCBP, 16 avenue Pey‐Berland Pessac cedex F‐33607 France
| |
Collapse
|
20
|
Li C, Chen Y, Zeng Y, Wu Y, Liu W, Qiu R. Strong and recyclable soybean oil-based epoxy adhesives based on dynamic borate. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110923] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
21
|
He E, Yao Y, Zhang Y, Wei Y, Ji Y. Reprocessing of Vitrimer. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22020072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
22
|
|
23
|
Zhang Z, Lin C, Hou R, Tang D. Construction of polyallophanate vitrimers from poly(urea carbonate) via group revival induced crosslinking. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
24
|
Joe J, Shin J, Choi Y, Hwang JH, Kim SH, Han J, Park B, Lee W, Park S, Kim YS, Kim D. A 4D Printable Shape Memory Vitrimer with Repairability and Recyclability through Network Architecture Tailoring from Commercial Poly(ε-caprolactone). ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2103682. [PMID: 34716690 PMCID: PMC8693056 DOI: 10.1002/advs.202103682] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Vitrimers have shown advantages over conventional thermosets via capabilities of dynamic network rearrangement to endow repairability as well as recyclability. Based on such characteristics, vitrimers have been studied and have shown promises as a 3D printing ink material that can be recycled with the purpose of waste reduction. However, despite the brilliant approaches, there still remain limitations regarding requirement of new reagents for recycling the materials or reprintability issues. Here, a new class of a 4D printable vitrimer that is translated from a commercial poly(ε-caprolactone) (PCL) resin is reported to exhibit self-healability, weldability, reprocessability, as well as reprintability. Thus, formed 3D-printed vitrimer products show superior heat resistance in comparison to commercial PCL prints, and can be repeatedly reprocessed or reprinted via filament extrusion and a handheld fused deposition modeling (FDM)-based 3D printing method. Furthermore, incorporation of semicrystalline PCL renders capabilities of shape memory for 4D printing applications, and as far as it is known, such demonstration of FDM 3D-printed shape memory vitrimers has not been realized yet. It is envisioned that this work can fuel advancement in 4D printing industries by suggesting a new material candidate with all-rounded capabilities with minimized environmental challenges.
Collapse
Affiliation(s)
- Jungho Joe
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| | - Jeehae Shin
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| | - Yong‐Seok Choi
- Composite Materials Application Research CenterKorea Institute of Science and Technology92 Chudong‐ro, Bongdong‐eupWanju‐gunJeonbuk55324Republic of Korea
| | - Jae Hyuk Hwang
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical ProcessesSeoul National University599 Gwanak‐ro, Gwanak‐guSeoul08826Republic of Korea
| | - Sang Hwa Kim
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
- Department of Chemical Engineering and Applied ChemistryChungnam National University99 Daehak‐ro, Yuseong‐guDaejeon34134Republic of Korea
| | - Jiseok Han
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
- Department of Polymer EngineeringChungnam National University99 Daehak‐ro, Yuseong‐guDaejeon34134Republic of Korea
| | - Bumsoo Park
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| | - Woohwa Lee
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| | - Sungmin Park
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| | - Yong Seok Kim
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
- Advanced Materials and Chemical EngineeringKRICT SchoolUniversity of Science and Technology217 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| | - Dong‐Gyun Kim
- Advanced Materials DivisionKorea Research Institute of Chemical Technology141 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
- Advanced Materials and Chemical EngineeringKRICT SchoolUniversity of Science and Technology217 Gajeong‐ro, Yuseong‐guDaejeon34114Republic of Korea
| |
Collapse
|
25
|
Xu W, Pan Y, Deng J, Yin L, Zheng Z, Ding X. Reprocessable and Self‐Healing Shape Memory Epoxy Resin Based on Biphenyl Mesogen and Siloxane. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Weiming Xu
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yi Pan
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jinni Deng
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lv Yin
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China
| | - Zhaohui Zheng
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiaobin Ding
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China
- University of Chinese Academy of Sciences Beijing 100049 China
| |
Collapse
|
26
|
Yao Y, Zhu J, Shen Y, Wu H. pH-Responsive Dual-Emitting Hydroxypropyl Methylcellulose-Based Material Containing Fluorescein Isothiocyanate and CaAl 2O 4:Eu 2+,Dy 3+ Phosphors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50338-50349. [PMID: 34637258 DOI: 10.1021/acsami.1c14305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herein, we prepared a dual-emitting cellulose film with pH response, which offers high transparency, good flexibility, and intense thermal stability. The color of the fluorescent film that changes from green to blue-green to cyan was achieved by covalently attaching organic dye fluorescein isothiocyanate (FITC), inorganic pigment NH2-CaAl2O4:Eu2+,Dy3+ (NH2-CAO), and organic-inorganic fluorescence species onto hydroxypropyl methylcellulose (HMPC) chains, respectively. Benefiting from the "anchoring" and "dilution" effects of the HMPC skeleton, HPMC-FITC and HPMC@NH2-CAO fluorescent solutions and solid-state films emit green and blue-green fluorescence at 535 and 480 nm, respectively. The obtained pH-responsive cellulose-based dual-emitting film can continuously emit cyan light at the two emission peaks of 480 and 535 nm for a long time and exhibits strong fluorescence intensity under exceedingly alkaline conditions. Moreover, the HPMC-based fluorescent solution coated on glass and fabric substrate shows strong fluorescence under 365 nm UV light stimulation. Compared with the existing cellulose-based fluorescent films, this work expands the emission wavelength range of cellulose-based fluorescent films and prolongs the luminescent time of environment-responsive fluorescent films. This provides a new way to prepare intelligent color-changing fabric-coating materials and sensitive pH sensors based on biomass.
Collapse
Affiliation(s)
- Yijun Yao
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
- Key Laboratory of Functional Textile Material and Product, Xi'an Polytechnic University, Ministry of Education, Xi'an 710048, Shaanxi, China
| | - Junxin Zhu
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
| | - Yanqin Shen
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
- Key Laboratory of Functional Textile Material and Product, Xi'an Polytechnic University, Ministry of Education, Xi'an 710048, Shaanxi, China
| | - Hailiang Wu
- School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
- Key Laboratory of Functional Textile Material and Product, Xi'an Polytechnic University, Ministry of Education, Xi'an 710048, Shaanxi, China
| |
Collapse
|
27
|
Zhao W, Liang Z, Feng Z, Xue B, Xiong C, Duan C, Ni Y. New Kind of Lignin/Polyhydroxyurethane Composite: Green Synthesis, Smart Properties, Promising Applications, and Good Reprocessability and Recyclability. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28938-28948. [PMID: 34100581 DOI: 10.1021/acsami.1c06822] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A new kind of biobased material named lignin-containing polyhydroxyurethane (LPHU) is prepared from bis(6-membered cyclic carbonate) (BCC), dimer fatty diamine, and lignin for the first time. The preparation strategy is isocyanate-free, solvent-free, and catalyst-free, representing a green and environmentally friendly method to access polyurethane (PU)/lignin composites. The resultant LPHUs possess dual networks: a dynamic covalent network and a hydrogen bonding network, exhibiting superior mechanical strength, high thermal stability, excellent reprocessability/recyclability, and smart properties such as shape memory and self-healing. Potential application investigations indicate that the resultant LPHUs can be not only used for smart packaging label fabrication for heat-sensitive commodities but also further combined with natural cellulose paper to prepare paper-based electromagnetic shielding materials with high mechanical performance.
Collapse
Affiliation(s)
- Wei Zhao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- Key Laboratory of Paper Based Functional Materials, China National Light Industry, Xi'an 710021, P. R. China
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi'an 710021, P. R. China
- National Demonstration Centre for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Zhenhua Liang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- Key Laboratory of Paper Based Functional Materials, China National Light Industry, Xi'an 710021, P. R. China
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi'an 710021, P. R. China
- National Demonstration Centre for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Zihao Feng
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Bailiang Xue
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Chuanyin Xiong
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Chao Duan
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Yonghao Ni
- Department of Chemical Engineering, University of New Brunswick, Fredericton E3B 5A3, New Brunswick, Canada
| |
Collapse
|
28
|
Sugarcane Bagasse-Derived Activated Carbon- (AC-) Epoxy Vitrimer Biocomposite: Thermomechanical and Self-Healing Performance. INT J POLYM SCI 2021. [DOI: 10.1155/2021/5561755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Vitrimeric materials have emerged as fascinating and sustainable materials owing to their malleability, reprocessability, and recyclability. Sustainable vitrimeric materials can be prepared by reinforcing polymeric matrix with bioderived fillers. In the current work, a sustainable vitrimer is prepared by incorporating biomass-derived activated carbon (AC) filler into the epoxy matrix to achieve enhanced thermal and mechanical properties. Thus, prepared biocomposite vitrimers demonstrate a lower-temperature self-healing (70°C for 5 min) via disulfide exchanges, compared to the pristine epoxy vitrimers (80°C for 5 min). Significantly, the self-healing performances have been studied extensively with the flexural studies; and changes in material healing efficiency have been demonstrated based on the observed changes in modulus.
Collapse
|
29
|
Cuminet F, Caillol S, Dantras É, Leclerc É, Ladmiral V. Neighboring Group Participation and Internal Catalysis Effects on Exchangeable Covalent Bonds: Application to the Thriving Field of Vitrimer Chemistry. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02706] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Éric Dantras
- CIRIMAT Physique des Polymères, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse, France
| | - Éric Leclerc
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | |
Collapse
|
30
|
Swartz JL, Li RL, Dichtel WR. Incorporating Functionalized Cellulose to Increase the Toughness of Covalent Adaptable Networks. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44110-44116. [PMID: 32885651 DOI: 10.1021/acsami.0c09215] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Covalent adaptable networks (CANs) are cross-linked polymers that have mechanical properties similar to thermosets at operating conditions yet can be reprocessed by cross-link exchange reactions that are activated by a stimulus. Although CAN exchange dynamics have been studied for many polymer compositions, the tensile properties of these demonstration systems are often inferior compared to those of commercial thermosets. In this study, we explore toughening CANs capable of forming covalent bonds with a reactive filler to characterize the trade-off between improved toughness and longer reprocessing times. Polycarbonate (PC) and polyurethane (PU) CANs were toughened by incorporating cellulose modified with cyclic carbonate groups as a reactive filler with loadings from 1.3 to 6.6 wt %. The addition of 6.6 wt % of the cellulose derivative resulted in a 3.2-fold increase in average toughness for the PC CANs, yet it only increased the characteristic relaxation time of stress relaxation (τ*) via disulfide exchange at 180 °C from 63 to 365 s. The cellulose-containing samples also showed >80% recovery in crosslinking density and mechanical properties after reprocessing. The addition of 3.2 wt % of the functionalized cellulose into a polyethylene glycol-based PU CAN led to a 2.3-fold increase in toughness while increasing τ* at 140 °C from 106 to 157 s. These findings demonstrate the promise of functionalized cellulose as an inexpensive, renewable, and sustainable filler that toughens CANs containing hydroxyl groups.
Collapse
Affiliation(s)
- Jeremy L Swartz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Rebecca L Li
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - William R Dichtel
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| |
Collapse
|
31
|
Kaiser S, Jandl J, Novak P, Schlögl S. Design and characterisation of vitrimer-like elastomeric composites from HXNBR rubber. SOFT MATTER 2020; 16:8577-8590. [PMID: 32766610 DOI: 10.1039/d0sm00362j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present study aims at the incorporation of vitrimer-like properties into elastomeric composites as a promising approach towards the sustainable production of rubber-based materials. In particular, hydrogenated carboxylated nitrile butadiene rubber (HXNBR), as a technically relevant high-performance rubber, is covalently cross-linked with epoxy group-functionalised calcium silicate (Esilicate) across its pending carboxylic acid moieties. Reaction with the reactive functions attached on the filler surface results in the formation of β-hydroxyl ester linkages at the HXNBR-Esilicate interface, which undergo thermo-activated transesterifications in the presence of a suitable catalyst. Topology rearrangements in the composites are confirmed by stress relaxation measurements at elevated temperatures. Comparison with an unfilled reference network reveals that the extent of stress relaxation can be mostly maintained upon the addition of the reactive filler even at large quantities. The Esilicate serves as both cross-linker and reinforcing filler, leading to a significant enhancement of the mechanical properties.
Collapse
Affiliation(s)
- Simon Kaiser
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria.
| | - Julius Jandl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria.
| | - Patrick Novak
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria.
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria.
| |
Collapse
|
32
|
Alabiso W, Schlögl S. The Impact of Vitrimers on the Industry of the Future: Chemistry, Properties and Sustainable Forward-Looking Applications. Polymers (Basel) 2020; 12:E1660. [PMID: 32722554 PMCID: PMC7465221 DOI: 10.3390/polym12081660] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/19/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022] Open
Abstract
Thermosets are known to be very reliable polymeric materials for high-performance and light-weight applications, due to their retained dimensional stability, chemical inertia and rigidity over a broad range of temperatures. However, once fully cured, they cannot be easily reshaped or reprocessed, thus leaving still unsolved the issues of recycling and the lack of technological flexibility. Vitrimers, introduced by Leibler et al. in 2011, are a valiant step in the direction of bridging the chasm between thermoplastics and thermosets. Owing to their dynamic covalent networks, they can retain mechanical stability and solvent resistance, but can also flow on demand upon heating. More generally, the family of Covalent Adaptable Networks (CANs) is gleaming with astounding potential, thanks to the huge variety of chemistries that may enable bond exchange. Arising from this signature feature, intriguing properties such as self-healing, recyclability and weldability may expand the horizons for thermosets in terms of improved life-span, sustainability and overall enhanced functionality and versatility. In this review, we present a comprehensive overview of the most promising studies featuring CANs and vitrimers specifically, with particular regard for their industrial applications. Investigations into composites and sustainable vitrimers from epoxy-based and elastomeric networks are covered in detail.
Collapse
|
33
|
A review on nanocellulose as a lightweight filler of polyolefin composites. Carbohydr Polym 2020; 243:116466. [PMID: 32532395 DOI: 10.1016/j.carbpol.2020.116466] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 12/20/2022]
Abstract
Nanocellulose (NC) possesses low density, high aspect ratio, impressive mechanical properties, nanoscale dimensions, which shows huge potential applications as a reinforced filler. Polyolefin (PO), represented by polyethylene (PE) and polypropylene (PP), has been widely used in industries. Recently nanocellulose/polyolefin nanocomposites (NC/PO nanocomposites) have caught more attention from the application of automotive components, aerospace, furniture, building, home appliances, and sport. In this review, the surface modifications of nanocellulose and polyolefin are summarized respectively, such as surface adsorption modification, small molecule modification, and graft copolymerization modification. The common preparations of NC/PO nanocomposites are discussed, including the melting compounding, the solvent casting, and the in-situ polymerization. The lightweight, mechanical properties, and aging-resistant properties of NC/PO nanocomposites are highlighted. Finally, the potentials and challenges for industrial production development of NC/PO nanocomposites are discussed.
Collapse
|
34
|
Șucu T, Shaver MP. Inherently degradable cross-linked polyesters and polycarbonates: resins to be cheerful. Polym Chem 2020. [DOI: 10.1039/d0py01226b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We summarise the most recent advances in the synthesis and characterisation of degradable thermosetting polyester and polycarbonates, including partially degradable systems derived from itaconic acid and isosorbide.
Collapse
Affiliation(s)
- Theona Șucu
- School of Natural Sciences
- Department of Materials
- The University of Manchester
- Manchester
- UK
| | - Michael P. Shaver
- School of Natural Sciences
- Department of Materials
- The University of Manchester
- Manchester
- UK
| |
Collapse
|