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Zhang Y, Chen L, He Y, Luo W, Li K, Min Y. Synthesis of Furan-Based Diamine and Its Application in the Preparation of Bio-Based Polyimide. Polymers (Basel) 2023; 15:polym15051088. [PMID: 36904330 PMCID: PMC10006871 DOI: 10.3390/polym15051088] [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: 01/03/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Furan-based compounds are a new class of compounds characteristic of wide abundance, feasible availability, and environmental friendliness. Presently, polyimide (PI) is the best membrane insulation material in the world, which is widely used in the fields of national defense, liquid crystals, lasers, and so on. At present, most polyimides are synthesized using petroleum-based monomers bearing benzene rings, while furan-based compounds bearing furan rings are rarely used as monomers. The production of petroleum-based monomers is always associated with many environmental issues, and their substitution with furan-based compounds seems a solution to addressing these issues. In this paper, t-butoxycarbonylglycine (BOC-glycine) and 2,5-furandimethanol, bearing furan rings, were employed to synthesize BOC-glycine 2,5-furandimethyl ester, which was further applied for the synthesis of furan-based diamine. This diamine is generally used to synthesize bio-based PI. Their structures and properties were thoroughly characterized. The characterization results showed that BOC-glycine could be effectively obtained using different posttreatment methods. And BOC-glycine 2,5-furandimethyl ester could be effectively obtained by optimizing the accelerating agent of 1,3-dicyclohexylcarbodiimide(DCC) with either 1.25 mol/L or 1.875 mol/L as the optimum value. The PIs originated from furan-based compounds were synthesized and their thermal stability and surface morphology were further characterized. Although the obtained membrane was slightly brittle (mostly due to the less rigidity of furan ring as compared with benzene ring), the excellent thermal stability and smooth surface endow it a potential substitution for petroleum-based polymers. And the current research is also expected to shed some insight into the design and the fabrication of eco-friendly polymers.
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Kausar A. Emerging polyimide and graphene derived nanocomposite foam: research and technical tendencies. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1934011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
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Advancement in Graphene-Based Materials and Their Nacre Inspired Composites for Armour Applications-A Review. NANOMATERIALS 2021; 11:nano11051239. [PMID: 34066661 PMCID: PMC8151629 DOI: 10.3390/nano11051239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/18/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022]
Abstract
The development of armour systems with higher ballistic resistance and light weight has gained considerable attention as an increasing number of countries are recognising the need to build up advanced self-defence system to deter potential military conflicts and threats. Graphene is a two dimensional one-atom thick nanomaterial which possesses excellent tensile strength (130 GPa) and specific penetration energy (10 times higher than steel). It is also lightweight, tough and stiff and is expected to replace the current aramid fibre-based polymer composites. Currently, insights derived from the study of the nacre (natural armour system) are finding applications on the development of artificial nacre structures using graphene-based materials that can achieve high toughness and energy dissipation. The aim of this review is to discuss the potential of graphene-based nanomaterials with regard to the penetration energy, toughness and ballistic limit for personal body armour applications. This review addresses the cutting-edge research in the ballistic performance of graphene-based materials through theoretical, experimentation as well as simulations. The influence of fabrication techniques and interfacial interactions of graphene-based bioinspired polymer composites for ballistic application are also discussed. This review also covers the artificial nacre which is shown to exhibit superior mechanical and toughness behaviours.
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Wang L, Wang J, Wen D. Devices with Tuneable Resistance Switching Characteristics Based on a Multilayer Structure of Graphene Oxide and Egg Albumen. NANOMATERIALS 2020; 10:nano10081491. [PMID: 32751364 PMCID: PMC7466537 DOI: 10.3390/nano10081491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/18/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
We used graphene oxide (GO) and egg albumen (EA) to fabricate bipolar resistance switching devices with indium tin oxide (ITO)/GO/EA/GO/Aluminum (Al) and ITO/EA/Al structures. The experimental results show that these ITO/GO/EA/GO/Al and ITO/EA/Al bio-memristors exhibit rewritable flash memory characteristics. Comparisons of ITO/GO/EA/GO/Al devices with 0.05 ωt %, 0.5 ωt %, and 2 ωt % GO in the GO layers and the ITO/EA/Al device show that the ON/OFF current ratio of these devices increases as the GO concentration decreases. Among these devices, the highest switching current ratio is 1.87 × 103. Moreover, the RESET voltage decreases as the GO concentration decreases, which indicates that GO layers with different GO concentrations can be adopted to adjust the ON/OFF current ratio and the RESET voltage. When the GO concentration is 0.5 ωt %, the device can be switched more than 200 times. The retention times of all the devices are longer than 104 s.
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Affiliation(s)
- Lu Wang
- Correspondence: ; Tel.: +86-188-4502-5666
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Rehman MM, Rehman HMMU, Gul JZ, Kim WY, Karimov KS, Ahmed N. Decade of 2D-materials-based RRAM devices: a review. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2020; 21:147-186. [PMID: 32284767 PMCID: PMC7144203 DOI: 10.1080/14686996.2020.1730236] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 02/12/2020] [Accepted: 02/12/2020] [Indexed: 06/01/2023]
Abstract
Two dimensional (2D) materials have offered unique electrical, chemical, mechanical and physical properties over the past decade owing to their ultrathin, flexible, and multilayer structure. These layered materials are being used in numerous electronic devices for various applications, and this review will specifically focus on the resistive random access memories (RRAMs) based on 2D materials and their nanocomposites. This study presents the device structures, conduction mechanisms, resistive switching properties, fabrication technologies, challenges and future aspects of 2D-materials-based RRAMs. Graphene, derivatives of graphene and MoS2 have been the major contributors among 2D materials for the application of RRAMs; however, other members of this family such as hBN, MoSe2, WS2 and WSe2 have also been inspected more recently as the functional materials of nonvolatile RRAM devices. Conduction in these devices is usually dominated by either the penetration of metallic ions or migration of intrinsic species. Most prominent advantages offered by RRAM devices based on 2D materials include fast switching speed (<10 ns), less power losses (10 pJ), lower threshold voltage (<1 V) long retention time (>10 years), high electrical endurance (>108 voltage cycles) and extended mechanical robustness (500 bending cycles). Resistive switching properties of 2D materials have been further enhanced by blending them with metallic nanoparticles, organic polymers and inorganic semiconductors in various forms.
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Affiliation(s)
- Muhammad Muqeet Rehman
- Faculty of Electrical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Pakistan
| | | | - Jahan Zeb Gul
- Department of Mechatronics & Biomedical Engineering, AIR University, Islamabad, Pakistan
| | - Woo Young Kim
- Faculty of Electronic Engineering, Jeju National University, Jeju, South Korea
| | - Khasan S Karimov
- Faculty of Electrical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Pakistan
| | - Nisar Ahmed
- Faculty of Electrical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Pakistan
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Choi JY, Lee J, Jeon J, Im J, Jang J, Jin SW, Joung H, Yu HC, Nam KN, Park HJ, Kim DM, Song IH, Yang J, Cho S, Chung CM. High-performance non-volatile resistive switching memory based on a polyimide/graphene oxide nanocomposite. Polym Chem 2020. [DOI: 10.1039/d0py01281e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Chemical structure of PI-GO, schematic structure of the ITO/PI-GO/Al device and its memory characteristics.
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Zhang Q, Ma D, Wen D, Wang C, Bai X, Wang S. Novel Conjugated Side Chain Fluorinated Polymers Based on Fluorene for Light-Emitting and Ternary Flash Memory Devices. ChemistryOpen 2019; 8:1267-1275. [PMID: 31637150 PMCID: PMC6797500 DOI: 10.1002/open.201900210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/16/2019] [Indexed: 11/16/2022] Open
Abstract
Three novel conjugated polymers based on 9,9'-dioctylfluorene unit and isoindolo[2,1-a]benzimidazol-11-one with different fluorine substituents (0, 2 and 4) were synthesized. PLED and resistive memory devices based on these polymers were prepared consequently. PLED based on four-fluorinated polymer showed the highest maximum brightness of 3192 cd m-2 with almost 5-fold increase of current efficiency 8-fold increase of external quantum efficiency compared to that of the other two, and all the PLEDs exhibited good emission stability with no noticeable change of electroluminescence even under high voltage of 10 V. The memory device of doubly-fluorinated polymer exhibited ternary flash behavior with threshold voltages below -2.5 V, while device of four-fluorinated polymer possessed ON/OFF current ratio above 104. Impact of fluorine substitutions on the performance of devices were briefly investigated. The results revealed that the improvement of device performance might not scale with the increasing number of fluorine substitutions, and the four-fluorine-substituted polymer and doubly-fluorinated polymer could be encouraging materials for applications of PLED and resistive memory device and worth of further design of other new polymer systems.
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Affiliation(s)
- Qian Zhang
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Dongge Ma
- Institute of Polymer MaterialsSouth China University of Technology381 Wushan RoadTianhe DistrictGuangzhouChina510641
| | - Dianzhong Wen
- Key Laboratories of Senior-education for Electronic EngineeringHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Cheng Wang
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Xuduo Bai
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Shuhong Wang
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
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Gong Y, Yu Y, Kang H, Chen X, Liu H, Zhang Y, Sun Y, Song H. Synthesis and Characterization of Graphene Oxide/Chitosan Composite Aerogels with High Mechanical Performance. Polymers (Basel) 2019; 11:E777. [PMID: 31052440 PMCID: PMC6571988 DOI: 10.3390/polym11050777] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/18/2019] [Accepted: 03/29/2019] [Indexed: 11/16/2022] Open
Abstract
Chitosan, a semi-crystalline biomolecule, has attracted wide attention due to its high synthesis flexibility. In this study, to improve the mechanical properties of chitosan aerogels (CSAs), graphene oxide (GO) was extracted and introduced into chitosan aerogels as fillers. The porous CSAs/GO composite aerogels were fabricated by an environmentally friendly freeze-drying process with different GO contents (0, 0.5, 1.0, 1.5, wt.%). The characteristics of the CSAs/GO were investigated by scanning electron microscopy (SEM), mechanical measurements and mercury porosimeter. The crystallinity of samples was characterized by X-ray diffraction (XRD). The mechanism of the effect of graphene oxide on chitosan was studied by Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The results show that the microstructure of the samples is developed in the network structure. The porosity of CSAs/GO aerogels is as high as 87.6%, and the tensile strength of the films increased from 6.60 MPa to 10.56 MPa with the recombination of graphene oxide. The crystallinity (CrI) of composite aerogels increased from 27% to 81%, which indicates that graphene oxide improves the mechanical properties of chitosan by chemical crosslinking.
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Affiliation(s)
- Yang Gong
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Yingchun Yu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Huixuan Kang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Xiaohong Chen
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Hao Liu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Yue Zhang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Yimeng Sun
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
| | - Huaihe Song
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology, No. 15 North Third Ring Road East, Chaoyang District, Beijing 100029, China.
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Huang J, Zhao X, Zhang H, Bai J, Wang S, Wang C, Ma D, Hou Y. Flash memory devices and bistable nonvolatile resistance switching properties based on PFO doping with ZnO. RSC Adv 2019; 9:9392-9400. [PMID: 35520703 PMCID: PMC9062018 DOI: 10.1039/c9ra00405j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 03/18/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, poly(9,9-dioctylfluorene-2,7-diyl) (PFO) was synthesized through the Suzuki reaction, and it was characterized. A sandwich type memory device based on PFO and PFO:ZnO, was fabricated using rotary-coating technology. I–V characteristics of the device were studied, and the effects of ZnO nanoparticle (NP) doping content on the performances of the device were discussed. The best doping content of ZnO NPs was found by processing the experimental results (4.76 wt%). Also, the stability of the device was tested, and it was found that the device remained stable after a long testing period. Furthermore, the switching mechanism of the device was discussed. In this study, poly(9,9-dioctylfluorene-2,7-diyl) (PFO) was synthesized through the Suzuki reaction, and it was characterized.![]()
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Affiliation(s)
- Jiahe Huang
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Xiaofeng Zhao
- School of Electronic Engineering, Heilongjiang University Harbin 150080 P. R. China
| | - Hongyan Zhang
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Ju Bai
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Shuhong Wang
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
| | - Cheng Wang
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China .,Key Laboratory of Functional Inorganic Material Chemistry, Heilongjiang University, Ministry of Education Harbin 150080 P. R. China
| | - Dongge Ma
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 P. R. China
| | - Yanjun Hou
- School of Chemical Engineering and Materials, Heilongjiang University Harbin 150080 P. R. China
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Preparation and Properties of Poly(imide-siloxane) Copolymer Composite Films with Micro-Al2O3 Particles. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the current study, poly(imide-siloxane) copolymers (PIs) with different siloxane contents were synthesized and used as a matrix material for PI/Al2O3 composites. The PIs were characterized via their molecular weight, film quality, and thermal stability. Among the PI films, free-standing and flexible PI films were selected and used to prepare PI/Al2O3 composite films, with different Al2O3 loadings. The thermal conductivity, thermal stability, mechanical property, film flexibility, and morphology of the PI/Al2O3 composite films were investigated for their application as heat-dissipating material.
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Mohamed MG, Kuo SW. Functional Polyimide/Polyhedral Oligomeric Silsesquioxane Nanocomposites. Polymers (Basel) 2018; 11:E26. [PMID: 30960010 PMCID: PMC6401763 DOI: 10.3390/polym11010026] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/23/2018] [Accepted: 12/23/2018] [Indexed: 01/20/2023] Open
Abstract
The preparation of hybrid nanocomposite materials derived from polyhedral oligomeric silsesquioxane (POSS) nanoparticles and polyimide (PI) has recently attracted much attention from both academia and industry, because such materials can display low water absorption, high thermal stability, good mechanical characteristics, low dielectric constant, flame retardance, chemical resistance, thermo-redox stability, surface hydrophobicity, and excellent electrical properties. Herein, we discussed the various methods that have been used to insert POSS nanoparticles into PI matrices, through covalent chemical bonding and physical blending, as well as the influence of the POSS units on the physical properties of the PIs.
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Affiliation(s)
- Mohamed Gamal Mohamed
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.
| | - Shiao Wei Kuo
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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