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Choi EJ, Lee SJ, Jeong YG. Synthesis and structure-property relationship of thermotropic liquid crystalline polyesters containing thiophene-aromatic and cycloaliphatic moieties. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2133615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Eun-Ji Choi
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - So-Jeong Lee
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Young Gyu Jeong
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
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2
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Yang Z, Zeng J, Yang Z, Tong Y, Lai Y, Cao X. Rotational blow molding of thermotropic liquid crystal polymers and resulting orientational structure and mechanical properties. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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3
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Guan Q, Lu X, Chen Y, Zhang H, Zheng Y, Neisiany RE, You Z. High-Performance Liquid Crystalline Polymer for Intrinsic Fire-Resistant and Flexible Triboelectric Nanogenerators. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2204543. [PMID: 35896884 DOI: 10.1002/adma.202204543] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/22/2022] [Indexed: 05/27/2023]
Abstract
Flammability is a great challenge in the fields of electronics. The emergence of triboelectric nanogenerators (TENGs) provides a safe way to harvest environmentalally friendly energy and convert it into more secure power sources. Especially, polymer-based TENGs significantly accelerate the practical application of self-powered flexible electronics. However, most of the existing polymeric materials for TENGs are easily flammable and melt, dripping, in a fire scenario, and cannot be reused after combustion, which greatly limits the application of TENGs under extreme conditions. Herein, a fire-resistant TENG based on all-aromatic liquid crystalline poly(aryl ether ester) (LCPAEE ) synthesized via simple and efficient one-pot melt polycondensation is reported. The highly rigid main chain of LCPAEE endows the LCP-TENG with outstanding anti-dripping, temperature- and fire-resistance. The resultant LCP-TENG exhibits excellent electrical output performance, which is attributed to the high dielectric constant (ε' = 4.8) and fibrous-structured morphology of LCPAEE . The device can maintain over 65% of open-circuit voltage even after 16 s combustion (≈520 °C). Consequently, this work offers a novel strategy for tailoring the TENGs toward a secure power generator and electronics with fire hazard reduction, and potential application in firefighting, personal protection, and other extreme temperature environments.
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Affiliation(s)
- Qingbao Guan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
- State Key Laboratory of Molecular Engineering of Polymers (Fudan University), Shanghai, 200433, China
| | - Xiao Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Yuyao Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Haiyang Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Yaxuan Zheng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Rasoul Esmaeely Neisiany
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, 9617976487, Iran
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China
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4
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Choi E, Lee S, Gang H, Jeong YG. Influences of reactive compatibilization on the structure and physical properties of blends based on thermotropic liquid crystalline polyester and poly(1,4‐cyclohexylenedimethylene terephthalate). POLYM ENG SCI 2022. [DOI: 10.1002/pen.25856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eun‐Ji Choi
- Department of Applied Organic Materials Engineering Chungnam National University Daejeon Republic of Korea
| | - So‐Jeong Lee
- Department of Applied Organic Materials Engineering Chungnam National University Daejeon Republic of Korea
| | - Ha‐Eun Gang
- Department of Applied Organic Materials Engineering Chungnam National University Daejeon Republic of Korea
| | - Young Gyu Jeong
- Department of Applied Organic Materials Engineering Chungnam National University Daejeon Republic of Korea
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5
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Durmus A, Ercan N, Alanalp MB, Gökkurt T, Aydin I. Effects of liquid crystal polymer and organoclay addition on the physical properties of high‐density polyethylene films. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ali Durmus
- Engineering Faculty, Department of Chemical EngineeringIstanbul University‐Cerrahpasa Avcılar, Istanbul 34320 Turkey
| | - Nevra Ercan
- Engineering Faculty, Department of Chemical EngineeringIstanbul University‐Cerrahpasa Avcılar, Istanbul 34320 Turkey
| | - Mine Begum Alanalp
- Engineering Faculty, Department of Chemical EngineeringIstanbul University‐Cerrahpasa Avcılar, Istanbul 34320 Turkey
| | - Tolga Gökkurt
- Polipro Plastics, GEPOSB Inonu Mah., Cumhuriyet Cad. No: 42/1, 41400 Gebze Kocaeli Turkey
| | - Ismail Aydin
- Engineering Faculty, Department of Chemical EngineeringIstanbul University‐Cerrahpasa Avcılar, Istanbul 34320 Turkey
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6
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Xu X, Chen J. Structural Mechanism for Viscosity of Semiflexible Polymer Melts in Shear Flow. ACS Macro Lett 2017; 6:331-336. [PMID: 35610868 DOI: 10.1021/acsmacrolett.6b00979] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The viscosities of semiflexible polymers with different chain stiffnesses in shear flow are studied via nonequilibrium molecular dynamics techniques. The simulation reproduces the experimentally observed results, giving a complete picture of viscosity as chain stiffness increases. Analysis of flow-induced changes in chain conformation and local structure indicates two distinct mechanisms behind a variety of viscosity curves. For polymers of small stiffnesses, it is related to flow-induced changes in chain conformation and, for those of large stiffnesses, to flow-induced instabilities of nematic structures. The four-region flow curve is confirmed for polymers of contour length close to persistence length and understood by combining the two structural mechanisms. Thus, these findings clarify the microscopic structures indicated by the macroscopic viscosity.
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Affiliation(s)
- Xiaolei Xu
- State Key Laboratory
of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Jizhong Chen
- State Key Laboratory
of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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7
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Qian C, Baird DG. The transient shear rheology of a thermotropic liquid crystalline polymer in the super-cooled state. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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He Y, Priestley RD, Liu R. A One-Step and Scalable Continuous-Flow Nanoprecipitation for Catalytic Reduction of Organic Pollutants in Water. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b02279] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuezhen He
- Ministry of Education Key Laboratory of Advanced
Civil
Engineering Material, School
of Materials Science and Engineering, and Institute for Advanced Study, Tongji University, Shanghai 201804,China
- Anhui Key Laboratory of Chemo-Biosensing and Ministry
of Education Key Laboratory of Functional Molecular Solids, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Rodney D. Priestley
- Department of Chemical and Biological Engineering and Princeton Institute for the Science
and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
| | - Rui Liu
- Ministry of Education Key Laboratory of Advanced
Civil
Engineering Material, School
of Materials Science and Engineering, and Institute for Advanced Study, Tongji University, Shanghai 201804,China
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9
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Mazidi MM, Razavi Aghjeh MK, Khonakdar HA, Reuter U. Structure–property relationships in super-toughened polypropylene-based ternary blends of core–shell morphology. RSC Adv 2016. [DOI: 10.1039/c5ra24125a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A specific “percolated/interconnected” morphology of PA6/EPDM-g-MA core–shell modifier particles in PP matrix resulted in a tremendous enhancement of impact strength. Fracture behavior and toughening mechanisms were studied and proposed.
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Affiliation(s)
- Majid Mehrabi Mazidi
- Institute of Polymeric Materials
- Sahand University of Technology
- Tabriz
- Iran
- Faculty of Polymer Engineering
| | - Mir Karim Razavi Aghjeh
- Institute of Polymeric Materials
- Sahand University of Technology
- Tabriz
- Iran
- Faculty of Polymer Engineering
| | - Hossein Ali Khonakdar
- Leibniz Institute of Polymer Research Dresden
- Dresden
- Germany
- Department of Polymer Engineering
- Faculty of Engineering
| | - Uta Reuter
- Leibniz Institute of Polymer Research Dresden
- Dresden
- Germany
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10
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Cakir I, Soykan U, Cetin S, Karaboga F, Zalaoglu Y, Dogruer M, Terzioglu C, Yildirim G. Electrochemical and spectroscopic characteristics of p-acryloyloxybenzoyl chloride and p-acryloyloxybenzoic acid and antimicrobial activity of organic compounds. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 132:502-513. [PMID: 24892528 DOI: 10.1016/j.saa.2014.04.180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 04/25/2014] [Accepted: 04/30/2014] [Indexed: 06/03/2023]
Abstract
The purpose of this multidisciplinary work is to characterize title compounds, p-acryloyloxybenzoyl chloride (ABC) and p-acryloyloxybenzoic acid (ABA) by means of experimental and theoretical evidences. As experimental research, Fourier transformation-infrared spectra (in the region 400-4000 cm(-1)) and nuclear magnetic resonance (NMR) chemical shifts (with a frequency of 400 MHz) are examined for spectroscopic properties belonging to the new synthesized compounds. Moreover, the compounds are investigated for antimicrobial activity against various microorganisms (Gram-positive and Gram-negative) by means of the visual inhibition zone technique on the agar media. The experimental results observed indicate that ABA exhibits more powerful inhibitors of microorganisms due to the presence of the hydroxyl group leading to higher reactive system, one of the most striking features of the paper. As for the theoretical studies, the optimized molecular structures, vibrational frequencies, corresponding vibrational spectra interpreted with the aid of normal coordinate analysis based on scaled density functional force field, atomic charges, thermodynamic properties at different temperature, 1H NMR chemical shifts by way of density functional theory (DFT) with the standard (B3LYP) methods at 6-311G++(d,p) basis set combination for the first time. According to findings, the 1H NMR chemical shifts and vibrational frequencies are obtained to be in good agreement with the suitable experimental results. Thus, it would be more precise to say that the calculation level chosen is powerful approach for understanding in the identification of the molecules investigated. At the same time, we determine the electrochemical characteristics belonging to the samples via the simulation of translation energy (HOMO-LUMO), molecular electrostatic potential (MEP) and electrostatic potential (ESP) investigations. It is observed that the strong intra-molecular charge transfer (ICT) appears between the donor and acceptor in the both compounds (especially ABA) due to the existence of the strong electronic donating groups and effective π-π* conjugated segments with high electronic donor ability for the electrophilic attack (intermolecular interactions).
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Affiliation(s)
- I Cakir
- Abant Izzet Baysal University, Department of Food Engineering, Bolu 14280, Turkey
| | - U Soykan
- Abant Izzet Baysal University, Department of Chemistry, Bolu 14280, Turkey.
| | - S Cetin
- Abant Izzet Baysal University, Department of Chemistry, Bolu 14280, Turkey
| | - F Karaboga
- Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey
| | - Y Zalaoglu
- Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey; Osmaniye Korkut Ata University, Department of Physics, Osmaniye 80000, Turkey
| | - M Dogruer
- Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey
| | - C Terzioglu
- Abant Izzet Baysal University, Department of Physics, Bolu 14280, Turkey
| | - G Yildirim
- Abant Izzet Baysal University, Department of Mechanical Engineering, Bolu 14280, Turkey
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11
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Multilayer coextrusion of rheologically modified main chain liquid crystalline polymers and resulting orientational order. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Soykan U, Cetin S, Ozturk B, Karaboga F, Zalaoglu Y, Dogruer M, Yildirim G, Terzioglu C. Synthesis and characterization of p-benzophenoneoxycarbonylphenyl acrylate by means of experimental measurements and theoretical approaches, and bulk melt polymerization. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Chen S, Shu X, Xie HL, Zhang HL. Synthesis and liquid crystalline behavior of 2,5-disubstituted styrene-based random copolymers: Effect of difference in length of the rigid core on the mesomorphic behavior of mesogen-jacketed liquid crystalline polymers. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Chen S, Luo H, Xie HL, Zhang HL. Synthesis of mesogen-jacketed liquid crystalline polymers with long symmetry mesogenic core containing two biphenyls. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.01.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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