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Mao L, Ren X, Feng B, Zhang Y, Zhang J, Huang W. Sydnone-maleimide based cascading double 1,3-dipolar cycloaddition for synthesis of “A(A′) + B3” type hyperbranched polyimide. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Xiao L, Li W, Li S, Chen J, Wang Y, Huang J, Nie X. Diphenolic Acid-Derived Hyperbranched Epoxy Thermosets with High Mechanical Strength and Toughness. ACS OMEGA 2021; 6:34142-34149. [PMID: 34926962 PMCID: PMC8675157 DOI: 10.1021/acsomega.1c05812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Diglycidyl ether of bisphenol A (DGEBA) is a kind of widely used epoxy resin, but its thermosets normally show high brittleness and poor impact resistance due to the intrinsic rigid aromatic rings, which limit its application greatly. To avoid this drawback, we proposed a method to prepare a series of hyperbranched epoxies (HBEPs) with different molecular weights. After HBEPs were cured with methyl tetrahydrophthalic anhydride (MTHPA), characterizations were carried out to evaluate the properties of the cured HBEP samples. Testing results indicate that the hyperbranched thermosets can achieve excellent mechanical strength and toughness (tensile strength: 89.2 MPa, bending strength: 129.6 MPa, elongation at break: 6.1%, toughness: 4.5 MJ m-3, and impact strength: 6.7 kJ m-2), which are superior to those of the thermosets of commercial DGEBA (tensile strength: 81.2 MPa, bending strength: 108.2 MPa, elongation at break: 3.0%, toughness: 1.5 MJ m-3, and impact strength: 4.2 kJ m-2). In addition, HBEP with the highest molecular weight and degree of branching shows the best comprehensive mechanical properties. All hyperbranched thermosets exhibit high glass-transition temperatures (T g) and thermostability, which further illustrates the potential application value of HBEPs.
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Affiliation(s)
- Laihui Xiao
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
| | - Wenbin Li
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
| | - Shuai Li
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
| | - Jie Chen
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
| | - Yigang Wang
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
| | - Jinrui Huang
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
| | - Xiaoan Nie
- Key Laboratory of Biomass Energy and
Material, Jiangsu Province, Co-Innovation Center of Efficient Processing
and Utilization of Forest Resources, Jiangsu Province, Key Laboratory
of Chemical Engineering of Forest Products, National Forestry and
Grassland Administration, National Engineering Laboratory for Biomass
Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, 16 Suojin Wucun, Nanjing 210042, Jiangsu Province, P. R. China
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Wu Y, Wu D, Zhao H, Li J, Li X, Wang Z, Wang H, Zhu F, Xu B. Synthesis and properties of hyperbranched polymers for polymer light emitting devices with sunlight-style white emission. RSC Adv 2019; 9:22176-22184. [PMID: 35519492 PMCID: PMC9066655 DOI: 10.1039/c9ra03307f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 06/27/2019] [Indexed: 01/27/2023] Open
Abstract
A new series of hyperbranched polymers consisting of fluorene-alt-carbazole as the branches and the three-dimensional-structured spiro[3.3]heptane-2,6-dispirofluorene (SDF) as the core were designed and synthesized by one-pot Suzuki coupling polycondensation. A phosphor group with broad full width at half maximum (FWHM) bis(1-phenyl-isoquinoline)(acetylacetonato)iridium(iii) (Ir(Brpiq)2acac, 0.08 mol%) as the red-light emitting unit and bis(2-(4-bromophenyl)-1-[6-(9-carbazolyl)hexyl]-imidazole)(2-(5-(4-fluorinated phenyl)-1,3,4-triazole)pyridine)iridium(iii) ((CzhBrPI)2Ir(fpptz)) as the green-light emitting unit were introduced into the backbones to obtain sunlight-style white-light emission by adjusting the feeding ratios of (CzhBrPI)2Ir(fpptz) (0.08 to 0.32 mol%). The results indicate the synthesized polymers show high thermal stabilities and good amorphous film morphology because of the hyperbranched structures. Besides, the lowest unoccupied molecular orbital (LUMO) levels of polymers were reduced and the electron injection was improved because of excellent electron-transporting ability of the triazole unit in the green group. The hyperbranched structures can effectively suppress the polymers' chain distortion and aggregation, and promote the incomplete Förster resonance energy transfer (FRET) efficiency from fluorene-alt-carbazole segments to Ir complex units. As a result, the devices with hyperbranched polymer light-emitting layers realize white light emission, and the optimized device also exhibits good electroluminescent (EL) performance with Commission Internationale de l'Eclairage (CIE) coordinates at (0.32, 0.31), a maximum luminance of 9054 cd m−2, a maximum current efficiency of 3.59 cd A−1 and a maximum Color Rendering Index (CRI) of 91. The hyperbranched polymers based on fluorene-alt-carbazole branches and a SDF core and high-efficiency phosphor groups with broad full width at half maximum are attractive candidates for sunlight-style white polymer light-emitting device. A potential hyperbranched structure with fluorene-alt-carbazole branches, a 3D-structured SDF core, and green (CzhBrPI)2Ir(fpptz) and red Ir(piq)2acac adjusting light units is synthesized for efficient and stable sunlight-style white polymer light-emitting devices.![]()
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Affiliation(s)
- Yuling Wu
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China .,Department of Physics, Institute of Advanced Materials, and Institute of Research and Continuing Education (Shenzhen), Hong Kong Baptist University Kowloon Tong Hong Kong P. R. China
| | - Dongyu Wu
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China
| | - Haocheng Zhao
- Department of Electrical Engineering, Shanxi Institute of Energy Taiyuan 030600 China.,College of Materials Science and Engineering, Taiyuan University of Science and Technology Taiyuan 030024 China
| | - Jie Li
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China
| | - Xuefeng Li
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China
| | - Zhongqiang Wang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China
| | - Hua Wang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China
| | - Furong Zhu
- Department of Physics, Institute of Advanced Materials, and Institute of Research and Continuing Education (Shenzhen), Hong Kong Baptist University Kowloon Tong Hong Kong P. R. China
| | - Bingshe Xu
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology Taiyuan 030024 China
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Bhat SI, Ahmadi Y, Ahmad S. Recent Advances in Structural Modifications of Hyperbranched Polymers and Their Applications. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01969] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shahidul Islam Bhat
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Younes Ahmadi
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Sharif Ahmad
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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Zhang J, Xie S, Zhang X, Lu Z, Xiao H, Li C, Li G, Xu X, Chen X, Bo Z. Hyperbranched polymer as an acceptor for polymer solar cells. Chem Commun (Camb) 2017; 53:537-540. [DOI: 10.1039/c6cc07335b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
For the first time, a hyperbranched polymer acceptor, HP-PDI, was designed, synthesized and applied in polymer solar cells (PSCs).
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Seiwert J, Herzberger J, Leibig D, Frey H. Thioether-Bearing Hyperbranched Polyether Polyols with Methionine-Like Side-Chains: A Versatile Platform for Orthogonal Functionalization. Macromol Rapid Commun 2016; 38. [DOI: 10.1002/marc.201600457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/05/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Jan Seiwert
- Institute of Organic Chemistry; Johannes Gutenberg University; Duesbergweg 10-14 55128 Mainz Germany
| | - Jana Herzberger
- Institute of Organic Chemistry; Johannes Gutenberg University; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz (MAINZ); Staudinger Weg 9 55128 Mainz Germany
| | - Daniel Leibig
- Institute of Organic Chemistry; Johannes Gutenberg University; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz (MAINZ); Staudinger Weg 9 55128 Mainz Germany
| | - Holger Frey
- Institute of Organic Chemistry; Johannes Gutenberg University; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz (MAINZ); Staudinger Weg 9 55128 Mainz Germany
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10
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Cook AB, Barbey R, Burns JA, Perrier S. Hyperbranched Polymers with High Degrees of Branching and Low Dispersity Values: Pushing the Limits of Thiol–Yne Chemistry. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00132] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Alexander B. Cook
- Department
of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Raphael Barbey
- Key Centre for Polymers & Colloids, School of Chemistry, Building F11, The University of Sydney, Sydney, NSW 2006, Australia
| | - James A. Burns
- Syngenta, Jealott’s
Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Sébastien Perrier
- Department
of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, Victoria 3052, Australia
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