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Ali Asgar M, Kim J, Lee S, Van Tran C, Refatul Haq M, In JB, Kim SM. Fabrication of 3D-interconnected microporous carbon decorated with microspheres for highly efficient hydrogen evolution reactions. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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2
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Cross-Linking of Polypropylene with Thiophene and Imidazole. Polymers (Basel) 2022; 14:polym14112198. [PMID: 35683871 PMCID: PMC9182647 DOI: 10.3390/polym14112198] [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: 04/22/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 11/18/2022] Open
Abstract
In this work, two novel routes to synthesis cross-linked polypropylene (PP) are introduced by using two different precursors (2-thiophenemethyl amine (TMA) and 1-(3 aminopropyl) imidazole (API)), both cross-linked with 1,1′-(methylenedi-4,1-phenylene) bismaleimide (BM) at two different annealing temperature values (T = 50 °C and T = 150 °C). Both Diels–Alder (DA) and Michael addition reactions were successfully performed with TMA and API, respectively, albeit with different reactivity. Imidazole clearly shows a higher reactivity compared to thiophene. In addition, an increase in annealing temperature leads to a higher degree of cross-linking. The highest degree of cross-linking was obtained by the imidazole product after annealing at 150 °C (IMG1A150) as evident from the highest complex viscosity (|η*|) value of IMG1A150. A difference in rheology and thermal properties between the imidazole and thiophene cross-linked products was also observed. However, both products have superior melt properties and thermal stability compared with the starting material. They show processability at high temperatures. The melt flow behavior and de-cross-linking at higher temperatures can be tuned depending on the choice of imidazole or thiophene. This study shows an advance on the cross-linked PP processing and its product performances for further application on the commercial scale.
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Cao TP, Hang CN, Vu-Quang H, Kabtamu DM, Kumar S, Nguyen VC, Cao XT. Catalyst free synthesis of poly(furfuryl alcohol) using deep eutectic solvent. NEW J CHEM 2022. [DOI: 10.1039/d1nj05723e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a catalyst free pathway for the polymerization of furfuryl alcohol (FA) into poly(furfuryl alcohol) (PFA) using deep eutectic solvent (DES) system. DES prepared by mixing of choline chloride...
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Liu C, Qiao Y, Li N, Hu F, Chen Y, Du G, Wang J, Jian X. Toughened of bismaleimide resin with improved thermal properties using amino-terminated Poly(phthalazinone ether nitrile sulfone)s. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Idumah CI, Odera SR. Recent advancement in self-healing graphene polymer nanocomposites, shape memory, and coating materials. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1725816] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Faculty of Engineering, Department of Polymer and Textile Engineering, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
- Enhanced Polymer Research Group, EnPro, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - S. R. Odera
- Department of Chemical Engineering, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
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Affiliation(s)
- Jaworski C. Capricho
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Bronwyn Fox
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Nishar Hameed
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, Australia
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Poly(furfuryl alcohol) bioresin-modified LY5210 epoxy thermosets. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1876-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Feng L, Zhao H, He X, Zhao Y, Gou L, Wang Y. Synthesis and self‐healing behavior of thermoreversible epoxy resins modified with nitrile butadiene rubber. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Libang Feng
- School of Materials Science and EngineeringLanzhou Jiaotong University Lanzhou 730070 China
| | - Hanwen Zhao
- School of Materials Science and EngineeringLanzhou Jiaotong University Lanzhou 730070 China
| | - Xia He
- School of Materials Science and EngineeringLanzhou Jiaotong University Lanzhou 730070 China
| | - Yanhua Zhao
- School of Civil EngineeringLanzhou Jiaotong University Lanzhou 730070 China
| | - Liuxiaohui Gou
- School of Materials Science and EngineeringLanzhou Jiaotong University Lanzhou 730070 China
| | - Yanping Wang
- School of Materials Science and EngineeringLanzhou Jiaotong University Lanzhou 730070 China
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Fortunato G, Anghileri L, Griffini G, Turri S. Simultaneous Recovery of Matrix and Fiber in Carbon Reinforced Composites through a Diels-Alder Solvolysis Process. Polymers (Basel) 2019; 11:E1007. [PMID: 31174331 PMCID: PMC6631297 DOI: 10.3390/polym11061007] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/28/2019] [Accepted: 06/04/2019] [Indexed: 11/30/2022] Open
Abstract
Efficient and comprehensive recycling of fiber-reinforced thermosets is particularly challenging, since the irreversible degradation of the matrix component is necessary in order to separate the fiber component in high purity. In this work, a new approach to fully recyclable thermoset composites is presented, based on the thermal reversibility of an epoxy-based polymer network, crosslinked through Diels-Alder (DA) chemistry. Carbon fiber composites, fabricated by compression molding, were efficiently recycled through a simple solvolysis procedure in common solvents, under mild conditions, with no catalysts. Specifically, the purity of reclaimed fibers, assessed by thermogravimetric analysis and scanning electron microscopy, was very high (>95%) and allowed successful reprocessing into second generation composites. Moreover, the dissolved matrix residues were directly employed to prepare smart, thermally healable coatings. Overall, DA chemistry has been shown to provide a convenient strategy towards circular economy of thermoset composites.
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Affiliation(s)
- Giovanni Fortunato
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - Luca Anghileri
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - Gianmarco Griffini
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - Stefano Turri
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
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Zolghadr M, Shakeri A, Zohuriaan‐Mehr MJ, Salimi A. Self‐healing semi‐IPN materials from epoxy resin by solvent‐free furan–maleimide Diels–Alder polymerization. J Appl Polym Sci 2019. [DOI: 10.1002/app.48015] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Mohsen Zolghadr
- School of ChemistryUniversity of Tehran, Alborz Campus P.O. Box 14155‐6619 Tehran Iran
| | - Alireza Shakeri
- School of Chemistry, College of ScienceUniversity of Tehran P.O. Box 14155‐6619 Tehran Iran
| | - Mohammad Jalal Zohuriaan‐Mehr
- Biobased Monomers and Polymers Division (BIOBASED Division)Iran Polymer and Petrochemical Institute (IPPI) P.O. Box 14965‐115 Tehran Iran
| | - Ali Salimi
- Adhesive and Resin DepartmentIran Polymer and Petrochemical Institute (IPPI) P.O. Box 14965‐115 Tehran Iran
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Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction. Int J Mol Sci 2019; 20:ijms20040828. [PMID: 30769888 PMCID: PMC6412303 DOI: 10.3390/ijms20040828] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/04/2019] [Accepted: 02/12/2019] [Indexed: 12/16/2022] Open
Abstract
Zr-doped mesoporous silicas with different textural parameters have been synthesized in the presence of structure-modifying agents, and then characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption-desorption at −196 °C, NH3 thermoprogrammed desorption (NH3–TPD), CO2 thermoprogrammed desorption (CO2–TPD), and X-ray photoelectron spectroscopy (XPS). These porous materials were evaluated in the furfural hydrogenation through the Meerwein-Ponndorf-Verley (MPV) reaction. The catalytic results indicate that the catalyst synthesized under hydrothermal conditions and adding a pore expander agent is more active and selective to furfuryl alcohol. However, the Zr-doped porous silica catalysts that were synthesized at room temperature, which possess narrow pore sizes, tend to form i-propyl furfuryl and difurfuryl ethers, coming from etherification between furfuryl alcohol (FOL) and isopropanol molecules (used as H-donor) by a SN2 mechanism.
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Xu C, Nie J, Wu W, Fu L, Lin B. Design of self-healable supramolecular hybrid network based on carboxylated styrene butadiene rubber and nano-chitosan. Carbohydr Polym 2019; 205:410-419. [DOI: 10.1016/j.carbpol.2018.10.080] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/25/2018] [Accepted: 10/24/2018] [Indexed: 11/25/2022]
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13
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Zhang Z, Sun K, Ma Y, Liu Q, Li Q, Zhang S, Wang Y, Liu Q, Dong D, Hu X. Nanofibers and amorphous Ni/Al2O3 catalysts — effect of steric hindrance on hydrogenation performance. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00985j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The steric hindrance of nanofibrous Ni–Al2O3 catalyst can be effectively reduced compared with that of the amorphous Ni/γ-Al2O3 catalyst, which greatly increases the activity of furfural and HMF hydrogenation at room temperature.
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Affiliation(s)
- Zhanming Zhang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Kai Sun
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Yuyao Ma
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Qianhe Liu
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Qingyin Li
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Shu Zhang
- College of Materials Science and Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Yi Wang
- School of Energy and Power Engineering
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Qing Liu
- Key Laboratory of Low Carbon Energy and Chemical Engineering
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266590
- P. R. China
| | - Dehua Dong
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Xun Hu
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
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Zhao S, Zhao J, Wen M, Yao M, Wang F, Huang F, Zhang Q, Cheng YB, Zhong J. Sequentially Reinforced Additive Coating for Transparent and Durable Superhydrophobic Glass. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11316-11324. [PMID: 30184434 DOI: 10.1021/acs.langmuir.8b01960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Now that there are various routes to prepare superhydrophobic surfaces for self-cleaning, anti-icing, liquid collecting, etc., attentions are moving toward low-cost upscaling of routes and increasing the reliability for actual applications. However, the required micro-nano structures for superhydrophobicity are light scattering and very vulnerable to abrasion. This intrinsically conflicts with the transparency and durability of superhydrophobic glass, which are the major barriers for its commercialization. In this study, we present a novel sequentially reinforced additive coating (SRAC) process to realize robust and transparent micro-nano structured film with tough intergranular sintering. A benign aqueous-based ink with poly(furfuryl alcohol) (PFA) and silica species is carefully designed and sprayed on glass to enable self-phase separation and morphology construction. The coatings reach the static contact angle (SCA) for water over 166° and withstand a 6H pencil scratching, the cross-cut test, and sand abrasion. Moreover, we also performed a 90 day outdoor performance test and the glass maintained superhydrophobicity with an SCA of 154°. These results provide a low-cost waterborne ink formula, and the high throughput and upscalable SRAC process could be a convenient technology for the fabrication of large area, robust superhydrophobic coatings.
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Affiliation(s)
- Shuangjie Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
| | - Juan Zhao
- School of Automobile Engineering , Wuhan University of Technology , Wuhan 430070 , P. R. China
| | - Min Wen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
| | - Ming Yao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
| | - Fengjue Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
| | - Fuzhi Huang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
| | - Qi Zhang
- School of Aerospace, Transport and Manufacturing , Cranfield University , Cranfield , Bedfordshire MK43 0AL , United Kingdom
| | - Yi-Bing Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
- Department of Materials Science and Engineering , Monash University , Clayton , VIC 3800 , Australia
| | - Jie Zhong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , P. R. China
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