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Hasegawa M, Fukuda T, Ishii J. Poly(ester imide)s with Low Linear Coefficients of Thermal Expansion and Low Water Uptake (VII): A Strategy to Achieve Ultra-Low Dissipation Factors at 10 GHz. Polymers (Basel) 2024; 16:653. [PMID: 38475336 DOI: 10.3390/polym16050653] [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: 01/15/2024] [Revised: 02/11/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
In this study, a series of ester-linked tetracarboxylic dianhydrides (TCDAs) with 2,6-naphthalene-containing longitudinally extended structures consisting of different numbers of aromatic rings (NAr = 6-8) was synthesized to obtain novel modified polyimides, poly(ester imide)s (PEsIs). These TCDAs were fully compatible with the conventional manufacturing processes of conventional polyimide (PI) systems. As an example, the PEsI film obtained from the ester-linked TCDA (NAr = 8) and an ester-linked diamine achieved unprecedented outstanding dielectric properties without the support of fluorinated monomers, specifically an ultra-low dissipation factor (tan δ) of 0.00128 at a frequency of 10 GHz (50% RH and 23 °C), in addition to an extremely high glass transition temperature (Tg) of 365 °C, extremely low linear coefficient of thermal expansion (CTE) of 6.8 ppm K-1, suppressed water uptake (0.24%), requisite film ductility, and a low haze. Consequently, certain PEsI films developed in this study are promising candidates for heat-resistant dielectric substrates for use in 5G-compatible high-speed flexible printed circuit boards (FPCs). The chemical and physical factors denominating tan δ are also discussed.
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Affiliation(s)
- Masatoshi Hasegawa
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi 274-8510, Chiba, Japan
| | - Taro Fukuda
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi 274-8510, Chiba, Japan
| | - Junichi Ishii
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi 274-8510, Chiba, Japan
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Mazumder K, Voit B, Banerjee S. Recent Progress in Sulfur-Containing High Refractive Index Polymers for Optical Applications. ACS OMEGA 2024; 9:6253-6279. [PMID: 38371831 PMCID: PMC10870412 DOI: 10.1021/acsomega.3c08571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/23/2023] [Accepted: 12/27/2023] [Indexed: 02/20/2024]
Abstract
The development in the field of high refractive index materials is a crucial factor for the advancement of optical devices with advanced features such as image sensors, optical data storage, antireflective coatings, light-emitting diodes, and nanoimprinting. Sulfur plays an important role in high refractive index applications owing to its high molar refraction compared to carbon. Sulfur exists in multiple oxidation states and can exhibit various stable functional groups. Over the last few decades, sulfur-containing polymers have attracted much attention owing to their wide array of applications governed by the functional group of sulfur present in the polymer repeat unit. The interplay of refractive index and various other polymer properties contributes to successfully implementing a specific polymer material in optical applications. The focus on developing optoelectronic devices induced an ever-increasing need to integrate different functional materials to achieve the devices' full potential. Several devices that see the potential use of sulfur in high refractive index materials are reviewed in the study. Like sulfur, selenium also exhibits high molar refraction and unique chemical properties, making it an essential field of study. This review covers the research and development in the field of sulfur and selenium in different forms of functionality, focusing on the chemistry of bonding and the optical properties of the polymers containing the heteroatoms mentioned above. The strategy and rationale behind incorporating heteroatoms in a polymer matrix to produce high-refractive-index materials are also described in the present review.
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Affiliation(s)
- Kajari Mazumder
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
| | - Susanta Banerjee
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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Chen J, Pei Z, Chai B, Jiang P, Ma L, Zhu L, Huang X. Engineering the Dielectric Constants of Polymers: From Molecular to Mesoscopic Scales. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2308670. [PMID: 38100840 DOI: 10.1002/adma.202308670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/30/2023] [Indexed: 12/17/2023]
Abstract
Polymers are essential components of modern-day materials and are widely used in various fields. The dielectric constant, a key physical parameter, plays a fundamental role in the light-, electricity-, and magnetism-related applications of polymers, such as dielectric and electrical insulation, battery and photovoltaic fabrication, sensing and electrical contact, and signal transmission and communication. Over the past few decades, numerous efforts have been devoted to engineering the intrinsic dielectric constant of polymers, particularly by tailoring the induced and orientational polarization modes and ferroelectric domain engineering. Investigations into these methods have guided the rational design and on-demand preparation of polymers with desired dielectric constants. This review article exhaustively summarizes the dielectric constant engineering of polymers from molecular to mesoscopic scales, with emphasis on application-driven design and on-demand polymer synthesis rooted in polymer chemistry principles. Additionally, it explores the key polymer applications that can benefit from dielectric constant regulation and outlines the future prospects of this field.
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Affiliation(s)
- Jie Chen
- Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhantao Pei
- Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Bin Chai
- Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Pingkai Jiang
- Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Lin Ma
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Minhang, Shanghai, 200240, China
| | - Lei Zhu
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106-7202, USA
| | - Xingyi Huang
- Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
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Wang M, Li L, Yan H, Liu X, Li K, Li Y, You Y, Yang X, Song H, Wang P. Poly(arylene ether)s-Based Polymeric Membranes Applied for Water Purification in Harsh Environment Conditions: A Mini-Review. Polymers (Basel) 2023; 15:4527. [PMID: 38231952 PMCID: PMC10707801 DOI: 10.3390/polym15234527] [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: 10/28/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024] Open
Abstract
Confronting the pressing challenge of freshwater scarcity, polymeric membrane-based water treatment technology has emerged as an essential and effective approach. Poly(arylene ether)s (PAEs) polymers, a class of high-performance engineering thermoplastics, have garnered attention in recent decades as promising membrane materials for advanced water treatment approaches. The PAE-Based membranes are employed to resist the shortages of most common polymeric membranes, such as chemical instability, structural damage, membrane fouling, and shortened lifespan when deployed in harsh environments, owing to their excellent comprehensive performance. This article presents the advancements in the research of several typical PAEs, including poly(ether ether ketone) (PEEK), polyethersulfone (PES), and poly(arylene ether nitrile) (PEN). Techniques for membrane formation, modification strategies, and applications in water treatment have been reviewed. The applications encompass processes for oil/water separation, desalination, and wastewater treatment, which involve the removal of heavy metal ions, dyes, oils, and other organic pollutants. The commendable performance of these membranes has been summarized in terms of corrosion resistance, high-temperature resistance, anti-fouling properties, and durability in challenging environments. In addition, several recommendations for further research aimed at developing efficient and robust PAE-based membranes are proposed.
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Affiliation(s)
- Mengxue Wang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Lingsha Li
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Haipeng Yan
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Xidi Liu
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Kui Li
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Ying Li
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Yong You
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China;
| | - Xulin Yang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Huijin Song
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
| | - Pan Wang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China; (M.W.); (L.L.); (H.Y.); (X.L.); (K.L.); (Y.L.); (X.Y.); (H.S.)
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Mazumder K, Bittrich E, Voit B, Banerjee S. Sulfur-Rich Polyimide/TiO 2 Hybrid Materials with a Tunable Refractive Index. ACS OMEGA 2023; 8:43236-43242. [PMID: 38024668 PMCID: PMC10653067 DOI: 10.1021/acsomega.3c07151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023]
Abstract
High refractive index (RI) polyimide/titania nanoparticle hybrid materials were synthesized and characterized in this study. The polyimide synthesis took place via the conventional polycondensation process following the preparation of poly(amic acid), and the nanoparticles were incorporated using an in situ sol-gel process. Thin films of the polyimide/titania nanoparticle hybrids were prepared by optimizing the coating conditions using a spin coater. Thermal imidization of the nanoparticle containing poly(amic acid) films on Si wafers was completed in a temperature-controlled drying oven under a N2 atmosphere. Fourier transform infrared spectroscopy revealed the successful formation of inorganic bonds as well as imide linkages, and transmission electron microscopy results show well-dispersed nanocrystalline TiO2 nanoparticles of around 5 nm in the polymer matrix. Thorough optimization of the reaction time and concentration of TiO2 precursors enabled to achieve a titania content as high as 30% (wt). The RI of the resultant hybrid materials was found to be tunable according to the titania content, while the RI increased linearly with increasing titania content. A homogeneous hybrid material with a very high RI of 1.84 at 589 nm was achieved in this work for 30% (wt) TiO2.
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Affiliation(s)
- Kajari Mazumder
- Materials
Science Centre, Indian Institute of Technology
Kharagpur, Kharagpur − 721302, India
- Leibniz-Institut
für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
| | - Eva Bittrich
- Leibniz-Institut
für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut
für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
- Chair
Organic Chemistry of Polymers, Technische
Universität Dresden, 01062 Dresden, Germany
| | - Susanta Banerjee
- Materials
Science Centre, Indian Institute of Technology
Kharagpur, Kharagpur − 721302, India
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Liu F, Li M, Sun J, Fang Q. Bio-based Low- k Polymers at High Frequency Derived from Anethole: Synthesis and the Relationship between the Structures and the Properties. Biomacromolecules 2023; 24:4819-4830. [PMID: 37603588 DOI: 10.1021/acs.biomac.3c00558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Bio-based polymers have been widely investigated as sustainable low dielectric (low-k) materials in past decades. Nevertheless, a few of the polymers with excellent comprehensive properties have been achieved to satisfy the requirements of high-frequency communication application. In this paper, two fluorinated monomers (BCB-F and 2BCB-F) have been designed and successfully prepared from biomass anethole. The thermal-cross-linkable benzocyclobutene and polyfluorobenzene groups were introduced in order to obtain low-k polymers with good comprehensive properties. A control monomer C1 was prepared from the estragole, the isomer of anethole, to study intensively the effect of structures on properties. Among the thermally cured polymers, cured BCB-F with higher fluoride content shows a comparable dielectric constant (Dk) of 2.62 and lower dielectric loss (Df) of 1.31 × 10-3 at a frequency of 10 GHz, as well as better hydrophobic properties with a water uptake of 0.18%. Such good hydrophobic properties enable it to maintain the good dielectric properties even after being soaked in boiling water for 96 h. Cured 2BCB-F with bifunctional benzocyclobutene groups displays excellent heat resistance with a high glass transition temperature (Tg) of 408 °C and a low coefficient of thermal expansion (CTE) of 52 ppm/°C in the temperature range 30-300 °C. Cured 2BCB-F also shows good dielectric properties with a Dk of 2.61 and a Df of 2.60 × 10-3 at a frequency of 10 GHz. The good comprehensive properties reveal that the anethole-based polymers are suitable candidates as matrix or encapsulation resins for application in electronics and microelectric fields.
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Affiliation(s)
- Fengping Liu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Minghui Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jing Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Qiang Fang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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Fan Z, Li B, Ren D, Xu M. Recent Progress of Low Dielectric and High-Performance Polybenzoxazine-Based Composites. Polymers (Basel) 2023; 15:3933. [PMID: 37835982 PMCID: PMC10575129 DOI: 10.3390/polym15193933] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
With the rapid advancement of intelligent electronics, big data platforms, and other cutting-edge technologies, traditional low dielectric polymer matrix composites are no longer sufficient to satisfy the application requirements of high-end electronic information materials, particularly in the realm of high integration and high-frequency, high-speed electronic communication device manufacturing. Consequently, resin-based composites with exceptional low dielectric properties have garnered unprecedented attention. In recent years, benzoxazine-based composites have piqued the interest of scholars in the fields of high-temperature-resistant, low dielectric electronic materials due to their remarkable attributes such as high strength, high modulus, high heat resistance, low curing shrinkage, low thermal expansion coefficient, and excellent flame retardancy. This article focuses on the design and development of modification of polybenzoxazine based on low dielectric polybenzoxazine modification methods. Studies on manufacturing polybenzoxazine co-polymers and benzoxazine-based nanocomposites have also been reviewed.
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Affiliation(s)
| | | | | | - Mingzhen Xu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China; (Z.F.); (B.L.); (D.R.)
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8
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Ma Z, Wu X, Zhu C. Merging Fluorine Incorporation and Functional Group Migration. CHEM REC 2023; 23:e202200221. [PMID: 36367274 DOI: 10.1002/tcr.202200221] [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: 09/13/2022] [Revised: 10/14/2022] [Indexed: 11/13/2022]
Abstract
Fluorine incorporation by concomitant fluoroalkyl radical addition to alkene or alkyne and functional group migration (FGM) represents an ingenious and robust strategy for the synthesis of structurally diverse fluorinated compounds. This account gives an overview of related studies in our group, in which three main reaction modes are discussed: 1) radical fluoroalkylative difunctionalization of unactivated alkenes via intramolecular FGM; 2) alkene difunctionalization by docking-migration process using fluoroalkyl-containing bifunctional reagents; 3) incorporation of fluoroalkyl group into C(sp3 )-H bond via consecutive hydrogen atom transfer (HAT) and FGM. Relying on these methods, a variety of trifluoromethylation and di-/mono-fluoroalkylation reactions along with the migration of cyano, heteroaryl, oximino, formyl, alkynyl, and alkenyl groups have been accomplished under mild conditions.
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Affiliation(s)
- Zhigang Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiangsu, China
- Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China
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Shi L, Bao F, Liu Y, Li H, Zhu T, Liu H, Yu J, Qiao Y, Zhu C, Xu J. Design and Synthesis of Low Dielectric Poly(aryl ether ketone) from Incorporation Bulky Fluorene Groups and Regular Hydroquinone Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11439-11447. [PMID: 37524048 DOI: 10.1021/acs.langmuir.3c01307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
To decrease the dipole polarization rate and reduce the dielectric constant of poly(aryl ether ketone) (PAEK) resin, 1,4-di(4-fluorobenzoyl) cyclohexane (DFBCH), a weakly polarizing cyclohexane-based monomer, was designed and synthesized as the primary reactant. The bulky fluorene group was incorporated to increase the free volume of the resin, further reducing the dielectric constant. Additionally, hydroquinone with a symmetric and regular structure was utilized to enhance the molecular chain's regularity and reduce dipole relaxation, further lowering the resin's dielectric constant and dielectric loss. The PFQEKs series resins exhibited excellent thermal stability with glass transition temperature (Tg) ranging from 222 to 239 °C and 5% weight loss (Td5%) ranging from 458 to 463 °C, with different monomer ratios. As the hydroquinone content increased, the dielectric constant (Dk) and dielectric loss (Df) of the resin decreased significantly, with Dk ranging from 2.92 to 2.77 and Df ranging from 0.011 to 0.008 at 10 GHz.
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Affiliation(s)
- Ludi Shi
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Feng Bao
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yanxing Liu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Hong Li
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Tang Zhu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Huichao Liu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jiali Yu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yongna Qiao
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Caizhen Zhu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jian Xu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
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Zhang Y, Lin H, Dong K, Tang S, Zhao C. Comparison of the Properties of Epoxy Resins Containing Various Trifluoromethyl Groups with Low Dielectric Constant. Polymers (Basel) 2023; 15:2853. [PMID: 37447498 DOI: 10.3390/polym15132853] [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: 06/07/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
A series of epoxy resins containing various trifluoromethyl groups were synthesized and thermally cured with diaminodiphenylmethane (DDM) and aminophenyl sulfone (DDS). All epoxy resins exhibited excellent thermal stability with the glass transition temperatures of above 128 °C and 5% weight loss temperatures of above 300 °C. DDS-cured epoxy resins possessed higher thermal stability than that of DDM-cured epoxy resins, while DDM-cured epoxy resins showed better mechanical, dielectric, and hydrophobic properties. Additionally, DDM-cured epoxy resins with different locations and numbers of trifluoromethyl groups showed flexural strength in the range of 95.55~152.36 MPa, flexural modulus in the range of 1.71~2.65 GPa, dielectric constant in the range of 2.55~3.05, and water absorption in the range of 0.49~0.95%. These results indicate that the incorporation of trifluoromethyl pendant groups into epoxy resins can be a valid strategy to improve the dielectric and hydrophobic performance.
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Affiliation(s)
- Yurong Zhang
- Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China
| | - Haidan Lin
- Electric Power Research Institute, State Grid Jilin Electric Power Company, Changchun 130012, China
| | - Kai Dong
- Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China
| | - Shasha Tang
- Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China
| | - Chengji Zhao
- Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China
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Bao F, Lei H, Zou B, Peng W, Qiu L, Ye F, Song Y, Qi F, Qiu X, Huang M. Colorless polyimides derived from rigid trifluoromethyl-substituted triphenylenediamines. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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12
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Li H, Wang X, Gong Y, Zhao H, Liu Z, Tao L, Peng Y, Ma K, Hu Z, Dastan D. Polyimide/crown ether composite film with low dielectric constant and low dielectric loss for high signal transmission. RSC Adv 2023; 13:7585-7596. [PMID: 36908549 PMCID: PMC9993404 DOI: 10.1039/d2ra07043j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023] Open
Abstract
Dielectric properties of polyimide (PI) are constrained by its inherent molecular structure and inter-chain packing capacities. The compromised dielectric properties of PI, however, could be rescued by introducing trifluoromethyl and forming a host-guest inclusion complex with the introduction of crown ethers (CEs). Herein, we report PI/crown ether composite films as a communication substrate that could be applied under high frequency circumstances. In this work, three kinds of bisphenol A-containing diamine (2,2'-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(2-methyl-4-aminophenoxy)phenyl]propane, and 2,2-bis[4-(2-trifluoro methyl-4-aminophenoxy)phenyl]propane) are synthesized and polymerized with 4,4'-(hexafluoroisopropylidene)diphthalic anhydride to prepare low-dielectric PI films by means of thermal imidization. Crown ethers are introduced into the PI with different mass fractions to obtain three series of PI films. Following the combination of trifluoromethyl into the molecular chain of PI, high frequency dielectric loss of modified PI films can be effectively reduced. The properties of these materials (especially the dielectric properties) are thoroughly explored by crown ether addition. The results show that the crown ether addition process can offer crown ethers with increased free volume of PI matrix, thus allowing them to generate a special necklace-like supramolecular structure, which makes the crown ether disperse more uniformly in the PI matrix, resulting in improved dielectric properties. Importantly, the dielectric constant and dielectric loss of the composite films at high frequencies are remarkably reduced to 2.33 and 0.00337, respectively. Therefore, these composite films are expected to find extensive use as a 5G communication substrate at high frequencies in the future.
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Affiliation(s)
- Heming Li
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Xinming Wang
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Yuze Gong
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China .,Sinochem LantianFluoro Materials Co., Ltd China
| | - Hongbin Zhao
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China .,Oxiranchem Holding Group Co. Ltd Liaoyang 111003 China
| | - Zhaobin Liu
- Oxiranchem Holding Group Co. Ltd Liaoyang 111003 China
| | - Lin Tao
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Youyou Peng
- Montverde Future Academy Shanghai 88 jianhao Road, Pudong New District Shanghai 201318 China
| | - Ke Ma
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Zhizhi Hu
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China .,Oxiranchem Holding Group Co. Ltd Liaoyang 111003 China
| | - Davoud Dastan
- Department of Materials Science and Engineering, Cornell University Ithaca NY 14850 USA
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13
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New Insights in the Synthesis of High-Molecular-Weight Aromatic Polyamides-Improved Synthesis of Rod-like PPTA. Int J Mol Sci 2023; 24:ijms24032734. [PMID: 36769053 PMCID: PMC9917457 DOI: 10.3390/ijms24032734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
By employing a variation of the polyamidation method using in situ silylated diamines and acid chlorides, it was possible to obtain a rod-type polyamide: poly(p-phenylene terephthalamide) (PPTA, a polymer used in the high-value-added material Kevlar), with a molecular weight much higher than that obtained with the classical and industrial polyamidation method. The optimization of the method has consisted of using, together with the silylating agent, a mixture of pyridine and a high-pKa tertiary amine. The research was complemented by a combination of nuclear magnetic resonance and molecular simulation studies, which determined that the improvements in molecular weight derive mainly from the formation of silylamide groups in the growing polymer.
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14
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Ghorai A, Banerjee S. Phosphorus-Containing Aromatic Polymers: Synthesis, Structure, Properties and Membrane-Based Applications. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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15
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Liu X, Sun Y, Chen Y, Zhao Z, Wang Z, Zhou G. Design and synthesis of novel poly (aryl ether ketones) containing trifluoromethyl and trifluoromethoxy groups. Des Monomers Polym 2023; 26:140-149. [PMID: 37139095 PMCID: PMC10150610 DOI: 10.1080/15685551.2023.2205733] [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] [Indexed: 05/05/2023] Open
Abstract
The high-frequency and high-speed communication in the 5 G era puts forward requirements for the dielectric properties of polymers. Introducing fluorine into poly(ary ether ketone) can improve its dielectric properties. In this work, by introducing the fluorine group strategy, we successfully designed and synthesized three novel trifluoromethyl (-CF3) or trifluoromethoxy (-OCF3)-containing bisphenol monomers and their F-substitution PEK-based polymers (PEK-Ins). All these PEK-Ins exhibited good thermal, mechanical and dielectric properties. The T d5% of the three polymers is all higher than 520℃. The free volume fraction of novel polymers increased from 3.75% to 5.72%. Among the three polymers, exhibited the lowest dielectric constant of the films is 2.839, and the dielectric loss is 0.0048, ascribing to the increasing free volume. The Young's modulus of the polymer film is as high as 2.9 GPa and the tensile strength is as high as 84 MPa. PEK-Ins reduced the dielectric constant by introducing a low fluorine content. This study provides a new way to design PEK to synthesize low dielectric constant polymers.
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Affiliation(s)
- Xiaolong Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, China
| | - Yunlong Sun
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian, China
| | - Yue Chen
- State Key Lab of Fluorinated Functional Membrane Materials, Shandong Dongyue Polymer Material Co, Ltd, Zibo, China
| | - Zhongfu Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, China
- CONTACT Zhongfu Zhao State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
| | - Zhipeng Wang
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian, China
- Zhipeng Wang Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian116023, China
| | - Guangyuan Zhou
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian, China
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16
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Song S, Xu S. Recent Progress in Selective C-F Bond Activation of Trifluoromethyl Alkenes. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202210006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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17
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Novel Synthesis of Polyimide Foams with Aromatic and 1,6-Diaminohexane Imide Bonding. ADVANCES IN POLYMER TECHNOLOGY 2022. [DOI: 10.1155/2022/3859792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel type of polyimide foams (PIFs) with chemically inserted flexible aliphatic diamine (1,6-diaminohexane (HMDA)) segments was successfully synthesized and characterized in this research. The aliphatic HMDA segments were randomly incorporated in the long chain aromatic imide bonds. The obtained PIFs containing various HMDA contents (0 to 20 mol%) exhibited different morphologies such as lowered density and larger cell diameter (with higher HMDA content), and open cell ratio was increased as well. HMDA rendered flexibility to the copolymer leading to decreased rigidity. Compared to using 4,4
-oxydianiline (ODA) as the sole diamine source, incorporating low cost of HMDA would increase the PIF’s flexibility and improve its processibility while making the production more cost effective. Within some range of compromised thermal and mechanical properties, this proposed method could be feasible for industrial applications.
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18
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Kim JW, Kim SJ, Song IY, Lee WE, Heo K, Kim SY, Lee J, Kim BK. Simple and rapid electrochemical monitoring for depolymerization of polyamic acid. Anal Chim Acta 2022; 1233:340489. [DOI: 10.1016/j.aca.2022.340489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/02/2022] [Accepted: 10/04/2022] [Indexed: 11/01/2022]
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19
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Supercritical carbon dioxide foaming for ultra-low dielectric loss perfluorinated foam. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102226] [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]
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20
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Chen D, Liu B, Wang X, Li X, Xu X, He J, Yang R. High flame retardant and heat-resistance, low dielectric benzoxazine resin with phthalimide structure. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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21
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Mustaffa N, Kaneko T, Takada K, Dwivedi S, Su’ait MS, Mobarak NN. Synthesis and characterization of polyimides from diisocyanate with enhanced solubility and thermostability properties via direct low-temperature one-step polymerization in NMP solvent. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04510-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Wang Y, Liu X, Shen J, Zhao J, Tu G. Synthesis of a Novel Rigid Semi-Alicyclic Dianhydride and Its Copolymerized Transparent Polyimide Films' Properties. Polymers (Basel) 2022; 14:polym14194132. [PMID: 36236080 PMCID: PMC9571554 DOI: 10.3390/polym14194132] [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: 09/13/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/07/2022] Open
Abstract
A new series of colorless polyimides (CPIs) with outstanding thermal properties and mechanical properties were fabricated by the copolymerization of a novel dianhydride and 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) with 2,2′-bistrifluoromethyl benzidine (TFDB). The novel dianhydride, 10-oxo-9-phenyl-9-(trifluoromethyl)-9,10-dihydroanthracene-2,3,6,7-tetraacid dianhydride (3FPODA), possessed a rigid semi-alicyclic structure, –CF3 and phenyl side groups, and an active carbonyl group. Benefitting from the special structure of 3FPODA, the glass transition temperatures (Tg) of the new CPIs improved from 330 °C to 377 °C, the coefficient of thermal expansion (CTE) decreased from 46 ppm/K to 24 ppm/K, and the tensile strength (TS), tensile modulus (TM), and elongation at break (EB) increased from 84 MPa to 136 MPa, 3.2 GPa to 4.4 GPa, and 2.94% to 4.13% with the increasing amount of 3FPODA, respectively. Moreover, the active carbonyl group of the 3FPODA could enhance the CPI’s adhesive properties. These results render the new dianhydride 3FPODA an ideal candidate monomer for the fabrication of high-performance CPIs.
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23
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Cao T, Wang L, Lin G, An Y, Liu X, Huang Y. Cross-linked porous polyarylene ether nitrile films with ultralow dielectric constant and superior mechanical properties. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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24
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Chen YC, Lin YC, Chang EC, Kuo CC, Ueda M, Chen WC. Investigation of the structure–dielectric relationship of polyimides with ultralow dielectric constant and dissipation factors using density functional theory. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Pan Z, Wang HL, Qi HR, Gao YS, Wang XL, Zhi XX, Zhang Y, Ren X, Liu JG. Molecular Design, Preparation, and Characterization of Fluoro-Containing Polyimide Ultrafine Fibrous Membranes with High Whiteness, High Thermal Stability, and Good Hydrophobicity. Molecules 2022; 27:molecules27175447. [PMID: 36080211 PMCID: PMC9457758 DOI: 10.3390/molecules27175447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/21/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Polymeric ultrafine fibrous membranes (UFMs) with high thermal stability and high whiteness are highly desired in modern optoelectronic applications. A series of fluoro-containing polyimide (FPI) UFMs with high whiteness, good thermal stability, and good hydrophobicity were prepared via a one-step electrospinning procedure from the organo-soluble FPI resins derived from a fluoro-containing dianhydride, 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA), and various diamines containing either pendant trifluoromethyl (–CF3) groups or alicyclic units in the side chains. The obtained FPI UFMs, including FPI-1 from 6FDA and 3,5-diaminobenzotrifluoride (TFMDA), FPI-2 from 6FDA and 2′-trifluoromethyl-3,4′-oxydianiline (3FODA), FPI-3 from 6FDA and 1,4-bis[(4-amino-2-trifluoromethyl)phenoxy]benzene (6FAPB), FPI-4 from 4,4′-bis[(4-amino-2-trifluoromethyl)phenoxy]biphenyl (6FBAB), and FPI-5 from 6FDA and 4’-tert-butyl-cyclohexyl-3,5-diaminobenzoate (DABC) showed whiteness indices (WI) higher than 87.00 and optical reflectance values higher than 80% at the wavelength of 457 nm (R457), respectively. The FPI-5 UFM, especially, showed the highest WI of 92.88. Meanwhile, the prepared PI UFMs exhibited good hydrophobic features with water contact angles (WCA) higher than 105°. At last, the PI UFMs exhibited good thermal stability with glass transition temperatures (Tg) higher than 255 °C, and the 5% weight-loss temperatures (T5%) higher than 510 °C in nitrogen.
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Affiliation(s)
- Zhen Pan
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Han-li Wang
- Shandong Huaxia Shenzhou New Material Co., Ltd., Zibo 256401, China
| | - Hao-ran Qi
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yan-shuang Gao
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Xiao-lei Wang
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Xin-xin Zhi
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yan Zhang
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Xi Ren
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Jin-gang Liu
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
- Correspondence: ; Tel.: +86-10-8232-2972
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26
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Huang TS, Wen HY, Chen YY, Hung PH, Hsieh TL, Huang WY, Chang MY. Ionomer Membranes Produced from Hexaarylbenzene-Based Partially Fluorinated Poly(arylene ether) Blends for Proton Exchange Membrane Fuel Cells. MEMBRANES 2022; 12:membranes12060582. [PMID: 35736289 PMCID: PMC9231265 DOI: 10.3390/membranes12060582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 01/25/2023]
Abstract
In this study, a series of high molecular weight ionomers of hexaarylbenzene- and fluorene-based poly(arylene ether)s were synthesized conveniently through condensation and post-sulfonation modification. The use a of blending method might increase the stacking density of chains and affect the formation both of interchain and intrachain proton transfer clusters. Multiscale phase separation caused by the dissolution and compatibility differences of blend ionomer in high-boiling-point solvents was examined through analysis and simulations. The blend membranes produced in this study exhibited a high proton conductivity of 206.4 mS cm−1 at 80 °C (increased from 182.6 mS cm−1 for precursor membranes), excellent thermal resistance (decomposition temperature > 200 °C), and suitable mechanical properties with a tensile strength of 73.8−77.4 MPa. As a proton exchange membrane for fuel cell applications, it exhibits an excellent power efficiency of approximately 1.3 W cm−2. Thus, the ionomer membranes have strong potential for use in proton exchange membrane fuel cells and other electrochemical applications.
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Affiliation(s)
- Tzu-Sheng Huang
- Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (Y.-Y.C.); (P.-H.H.)
| | - Hsin-Yi Wen
- Department of Green Energy and Environmental Resources, Chang Jung Christian University, Tainan City 71101, Taiwan;
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Yi-Yin Chen
- Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (Y.-Y.C.); (P.-H.H.)
| | - Po-Hao Hung
- Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (Y.-Y.C.); (P.-H.H.)
| | - Tung-Li Hsieh
- General Education Center, Wenzao Ursuline University of Languages, Kaohsiung 80793, Taiwan;
| | - Wen-Yao Huang
- Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (Y.-Y.C.); (P.-H.H.)
- Correspondence: (W.-Y.H.); (M.-Y.C.)
| | - Mei-Ying Chang
- Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (Y.-Y.C.); (P.-H.H.)
- Correspondence: (W.-Y.H.); (M.-Y.C.)
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27
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Rodríguez-Molina M, Galicia-Badillo D, Cetina-Mancilla E, Cárdenas J, Olvera LI, Toscano RA, Rodríguez-Molina B, Zolotukhin MG. 9-Trifluoromethylxanthenediols: Synthesis and Supramolecular Motifs. ACS OMEGA 2022; 7:13520-13528. [PMID: 35559143 PMCID: PMC9088779 DOI: 10.1021/acsomega.1c06635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 03/31/2022] [Indexed: 06/15/2023]
Abstract
The synthesis of four derivatives and the single-crystal X-ray structures of six 9-trifluoromethylxanthenediols (TFXdiols) I-VI are analyzed in this work. These compounds were obtained through superacid-catalyzed condensation of dihydroxybenzenes with 1,1,1-trifluoroacetone or 2,2,2-trifluoroacetophenone. The title molecules have a convex molecular structure due to their three fused rings of the xanthene moiety. We have found that, similar to resorcinol, the configuration of the hydroxyl groups is of great relevance for the crystal packing favoring either interactions above and below their molecular plane or lateral interactions that create layers. Considering that reports of TFXdiols are very scarce, our findings contribute to a better understanding of the molecular conformation and intermolecular interactions in their crystal structures. A similar analysis was extended to a fortuitous cocrystal obtained between 9-trifluoromethyl-9-(4'-fluorophenyl)-xanthenediol and 1,4-dihydroxybenzene, showing that these structures might be used to obtain cocrystals in the future.
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Affiliation(s)
- Manuel Rodríguez-Molina
- Instituto
de Investigaciones en Materiales, Universidad Nacional Autónoma
de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Dazaet Galicia-Badillo
- Instituto
de Química, Universidad Nacional Autónoma de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Enoc Cetina-Mancilla
- Instituto
de Investigaciones en Materiales, Universidad Nacional Autónoma
de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Jorge Cárdenas
- Instituto
de Química, Universidad Nacional Autónoma de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Lilian I. Olvera
- Instituto
de Investigaciones en Materiales, Universidad Nacional Autónoma
de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Rubén A. Toscano
- Instituto
de Química, Universidad Nacional Autónoma de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Braulio Rodríguez-Molina
- Instituto
de Química, Universidad Nacional Autónoma de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
| | - Mikhail G. Zolotukhin
- Instituto
de Investigaciones en Materiales, Universidad Nacional Autónoma
de México, Av. Universidad, CU, Coyoacán, 04510 Ciudad de México, México
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28
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Wu X, Cai J, Cheng Y. Synthesis and characterization of high fluorine‐containing polyimides with low‐dielectric constant. J Appl Polym Sci 2022. [DOI: 10.1002/app.51972] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xueliang Wu
- Department of Materials Science Fudan University Shanghai China
| | - Jing Cai
- Department of Materials Science Fudan University Shanghai China
| | - Yuanrong Cheng
- Department of Materials Science Fudan University Shanghai China
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29
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Selectfluor Mediated Difunctionalization of Olefins towards the Synthesis of Fluoromethylated Morpholines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Chen WY, Huang ZH, Liu XL, Liu YJ, Zhao JW, Sheng SR. New fluorinated polyimides based on 1,2-bis(4-aminophenyl)-4,5-bis(4-trifluoromethylphenyl)-1H-imidazole. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221074611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A new aromatic unsymmetrical diamine containing imidazolyl and trifluoromethyl groups, 1,2-bis(4-aminophenyl)-4,5-bis(4-trifluoromethylphenyl)-1H-imidazole was synthesized. A series of novel fluorinated polyimides (PIs) were prepared by polycondensation of this diamine monomer with various aromatic dianhydrides via one-step process. The resulting PIs bearing inherent viscosities of 0.45–0.61 dL/g were amorphous and readily soluble in organic polar solvents such as NMP, DMF, DMAc, THF, and CHCl3. These new PIs exhibited good thermal stability with 10% weight loss temperatures of 530–560°C and char yields of 61–65% at 800°C in nitrogen, as well as good flame retardancy with limited oxygen index value of 40.6–42.8, and outstanding hydrophobicity with the contact angle of 85.2–93.5°. Meanwhile, all the obtained PIs exhibited low water uptake of 0.30–0.53%, strong UV-vis absorption in the range of 267–310 nm in DMF solution, and their films presented high optical transparency with a cut-off wavelength in the 355–392 nm range. Except for the PI film derived from pyromellitic dianhydride, the other PI films had the tensile strength in the range of 53.2–74.1 MPa, elongation at breakage of 6–15%, and tensile modulus of 1.0–1.5 GPa, respectively.
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Affiliation(s)
- Wen-Yue Chen
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, China
| | - Zhi-Hui Huang
- Guangzhou Tinci Materials Technology Co., Ltd, Guangdong, China
| | - Xiao-Ling Liu
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, China
| | - Yong-Jun Liu
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, China
| | - Jing-Wei Zhao
- Guangzhou Tinci Materials Technology Co., Ltd, Guangdong, China
| | - Shou-Ri Sheng
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, China
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31
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Zhou XM, Hong GN, Zhang XL, Wei MH, Liu XL. Soluble, transparent and heat-resistant fluorinated copoly(ether imide)s containing pyridyl and biphenyl units in the main chain. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2022. [DOI: 10.1080/10601325.2022.2039067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xiao-Man Zhou
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, P.R. China
| | - Guang-Ning Hong
- Guangzhou Tinci Materials Technology Co., Ltd, Guangzhou, P.R. China
| | - Xiao-Ling Zhang
- College of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao, P.R. China
| | - Mei-Hong Wei
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, P.R. China
| | - Xiao-Ling Liu
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University, Nanchang, P.R. China
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32
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Construction of Safety and Non-flammable Polyimide Separator Containing Carboxyl Groups for Advanced Fast Charing Lithium-ion Batteries. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2678-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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33
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Highly Transparent Aromatic Polyamides from Unsymmetrical Diamine with Trifluoromethyl Groups. Polymers (Basel) 2022; 14:polym14030501. [PMID: 35160490 PMCID: PMC8840359 DOI: 10.3390/polym14030501] [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: 01/10/2022] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 12/04/2022] Open
Abstract
Soluble and transparent wholly aromatic polyamides (PAs) were synthesized from an unsymmetrical diamine monomer having trifluoromethyl (CF3) groups, 4-(4′-aminophenoxy)-3,5-bis(trifluoromethyl)aniline. The monomer was polymerized with several dicarboxylic acid monomers via the Yamazaki–Higashi polycondensation method. All of the synthesized polyamides have an amorphous morphology, and they are soluble in many polar organic solvents at room temperature. Flexible and transparent films of the polyamides were prepared by solution casting and these polymer films show good optical transparencies with cut-off wavelengths of 337–367 nm and transparencies of 88%–90% at 550 nm. In addition, all the polymers were thermally stable over 400 °C and exhibited glass transition temperatures (Tg) higher than 300 °C. Unsymmetrically inserted trifluoromethyl groups on polyamides improves the solubility as well as the transparency of the polymers while maintaining good thermal properties. They also showed low refractive indices around 1.5333~1.5833 at 633 nm owing to the existence of low polarizable trifluoromethyl groups.
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34
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Abstract
A library of fluorinated aryl diazomethanes were polymerized using BF3·OEt2 as a catalyst. The polymerization of 2,3,4,5,6-pentafluorophenyl diazomethane was found to be controlled, permitted chain extensions, and facilitated access to a series of block copolymers. Moreover, the polymer chains grew in one carbon increments (so-called "C1 polymerizations") and, as such, afforded highly substituted polymers that featured aryl units pendant to every carbon atom of the backbone. The polymers were characterized using size exclusion chromatography, various spectroscopic techniques, and a series of static and dynamic contact angle measurements. Compared to less-substituted analogues that were prepared using typical C2 polymerization methodologies, the C1 fluorinated polymers were found to be more hydrophobic while maintaining a sufficient solubility to be processed into robust films.
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Affiliation(s)
- Songsu Kang
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Sherilyn J. Lu
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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35
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Xue S, Lei X, Xiao Y, Xiong G, Lian R, Xin X, Peng Y, Zhang Q. Highly Refractive Polyimides Derived from Efficient Catalyst-Free Thiol–Yne Click Polymerization. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01959] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuyu Xue
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Xingfeng Lei
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Yuyang Xiao
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Guo Xiong
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Ruhe Lian
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Xiangze Xin
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Yutian Peng
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
| | - Qiuyu Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, P. R. China
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36
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Luo S, Dai J, Ji X, Chen J, Jiang Y, Li S, Mao T, Fan X. Synthesis of novel poly(arylene ether amide) containing aliphatic ring for optical property. HIGH PERFORM POLYM 2021. [DOI: 10.1177/09540083211052839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this work, the monomer N, N′-bis(4-fluorobenzamide)dicyclohexyl methane (BFDCM) was synthesized successfully by 4-fluorobenzoylchloride and 4,4′-diaminodicyclohexylmethane through interfacial reaction, and then the monomer BFDCM and 1,4-benzenediol (HQ) or 4.4′-biphenol (BH) were used to prepare the novel poly(arylene ether amide) (HQ-BFDCM and BH-BFDCM) containing an aliphatic ring in the main chain by nucleophilic substitution in NMP solution. These two polymers exhibited the inherent viscosities ranging from 0.828 to 1.044 dL g−1, high glass-transition temperatures (Tg) of 214.1–235.0 °C, and weight-loss temperature (T5%) of 425.2–441.3 °C. The polymers HQ-BFDCM and BH-BFDCM could completely or partly dissolve in some polar solutions, such as NMP, DMF, and so on, and they showed moderate corrosion resistance. Additionally, the obtained polymers HQ-BFDCM and BH-BFDCM exhibited good optical property, and the optical transmittances of HQ-BFDCM and BH-BFDCM were 74% and 80% at 450 nm, respectively, which showed that they could be applied to the heat-resistant optical films.
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Affiliation(s)
- Shajie Luo
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Junyu Dai
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoyu Ji
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jialin Chen
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yue Jiang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sixin Li
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tianzi Mao
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoxia Fan
- Medical College, Yan’an University, Yan’an, China
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37
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Rajput A, Sharma J, Raj SK, Kulshrestha V. Dehydrofluorinated poly(vinylidene fluoride-co-hexafluoropropylene) based crosslinked cation exchange membrane for brackish water desalination via electrodialysis. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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38
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Noda T, Iwasaki T, Takada K, Kaneko T. Soluble Biobased Polyimides from Diaminotruxinic Acid with Unique Bending Angles. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takumi Noda
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1211, Japan
| | - Takuma Iwasaki
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1211, Japan
| | - Kenji Takada
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1211, Japan
| | - Tatsuo Kaneko
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1211, Japan
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Ahn JS, Park SH, Kwon NY, Cho MJ, Paek SH, Choi DH. Physical Properties of Thermally Crosslinked Fluorinated Polyimide and Its Application to a Liquid Crystal Alignment Layer. Polymers (Basel) 2021; 13:3903. [PMID: 34833204 PMCID: PMC8621600 DOI: 10.3390/polym13223903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 01/29/2023] Open
Abstract
This study demonstrated the use of a thermally crosslinked polyimide (PI) for the liquid crystal (LC) alignment layer of an LC display (LCD) cell. Polyamic acid was prepared using 4,4'-oxydianiline (ODA) and 4,4'-(hexafluoroisopropylidene) diphthalic anhydride (6FDA). The 6FDA-ODA-based polyimide (PI) prepared by the thermal cyclic dehydration of the polyamic acid (PAA) was soluble in various polar solvents. After forming a thin film by mixing trifunctional epoxide [4-(oxiran-2-ylmethoxy)-N,N-bis(oxiran-2-ylmethyl)aniline] with the 6FDA-ODA-based PAA, it was confirmed that thermal curing at -110 °C caused an epoxy ring opening reaction, which could result in the formation of a networked polyimide not soluble in tetrahydrofuran. The crosslinked PI film showed a higher rigidity than the neat PI films, as measured by the elastic modulus. Furthermore, based on a dynamic mechanical analysis of the neat PI and crosslinked PI films, the glass transition temperatures (Tgs) were 217 and 339 °C, respectively, which provided further evidence of the formation of crosslinking by the addition of the epoxy reagent. After mechanical rubbing using these two PI films, an LC cell was fabricated using an anisotropic PI film as an LC alignment film. LC cells with crosslinked PI layers showed a high voltage holding ratio and low residual direct current voltage. This suggests that the crosslinked PI has good potential for use as an LC alignment layer material in advanced LCD technologies that require high performance and reliability.
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Affiliation(s)
- Jong-Soo Ahn
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea; (J.-S.A.); (S.H.P.); (N.Y.K.)
| | - Su Hong Park
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea; (J.-S.A.); (S.H.P.); (N.Y.K.)
| | - Na Yeon Kwon
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea; (J.-S.A.); (S.H.P.); (N.Y.K.)
| | - Min Ju Cho
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea; (J.-S.A.); (S.H.P.); (N.Y.K.)
| | - Sang-Hyon Paek
- Department of Chemical Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si 17104, Korea
| | - Dong Hoon Choi
- Department of Chemistry, Research Institute for Natural Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea; (J.-S.A.); (S.H.P.); (N.Y.K.)
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40
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Li J, Gong C, Lv S, Huang F. Effects of side alkoxy groups on the arylacetylene unit on properties of Poly(silylene arylacetylene)s. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110774] [Citation(s) in RCA: 3] [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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41
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Olariu MA, Hamciuc C, Asandulesa M, Hamciuc E, Epure E, Tsakiris V, Lisa G. Study on highly thermostable low‐k polymer films based on
fluorene‐containing
polyetherimides. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25792] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Marius Andrei Olariu
- Electrical Engineering Faculty, Department of Electrical Measurements and Materials “Gh. Asachi” Technical University Iasi Romania
- R&D Department Prosupport Consulting SRL Iasi Romania
| | | | | | - Elena Hamciuc
- “Petru Poni” Institute of Macromolecular Chemistry Iasi Romania
| | - Elena‐Luiza Epure
- Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, Department of Natural and Synthetic Polymers “Gh. Asachi” Technical University of Iasi Iasi Romania
| | - Violeta Tsakiris
- Department of Composite and Polymer Metallic Materials INCDIE ICPE‐CA Bucharest Romania
| | - Gabriela Lisa
- Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, Department of Chemical Engineering “Gh. Asachi” Technical University of Iasi Iasi Romania
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Huang TS, Hsieh TL, Lai CC, Wen HY, Huang WY, Chang MY. Highly Proton-Conducting Membranes Based on Poly(arylene ether)s with Densely Sulfonated and Partially Fluorinated Multiphenyl for Fuel Cell Applications. MEMBRANES 2021; 11:626. [PMID: 34436389 PMCID: PMC8398039 DOI: 10.3390/membranes11080626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 11/25/2022]
Abstract
Series of partially fluorinated sulfonated poly(arylene ether)s were synthesized through nucleophilic substitution polycondensation from three types of diols and superhydrophobic tetra-trifluoromethyl-substituted difluoro monomers with postsulfonation to obtain densely sulfonated ionomers. The membranes had similar ion exchange capacities of 2.92 ± 0.20 mmol g-1 and favorable mechanical properties (Young's moduli of 1.60-1.83 GPa). The membranes exhibited considerable dimensional stability (43.1-122.3% change in area and 42.1-61.5% change in thickness at 80 °C) and oxidative stability (~55.5%). The proton conductivity of the membranes, higher (174.3-301.8 mS cm-1) than that of Nafion 211 (123.8 mS cm-1), was the percent conducting volume corresponding to the water uptake. The membranes were observed to comprise isolated to tailed ionic clusters of size 15-45 nm and 3-8 nm, respectively, in transmission electron microscopy images. A fuel cell containing one such material exhibited high single-cell performance-a maximum power density of 1.32 W cm2 and current density of >1600 mA cm-2 at 0.6 V. The results indicate that the material is a candidate for proton exchange membranes in fuel cell applications.
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Affiliation(s)
- Tzu-Sheng Huang
- Department of Photonics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (C.-C.L.)
| | - Tung-Li Hsieh
- General Education Center, Wenzao Ursuline University of Languages, Kaohsiung 80793, Taiwan;
| | - Chih-Ching Lai
- Department of Photonics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (C.-C.L.)
| | - Hsin-Yi Wen
- Department of Green Energy and Environmental Resources, Chang Jung Christian University, Tainan City 71101, Taiwan;
| | - Wen-Yao Huang
- Department of Photonics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (C.-C.L.)
| | - Mei-Ying Chang
- Department of Photonics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan; (T.-S.H.); (C.-C.L.)
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43
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Zhang Y, Liu Z, Zhang X, Guo S. Sandwich-Layered Dielectric Film with Intrinsically Excellent Adhesion, Low Dielectric Constant, and Ultralow Dielectric Loss for a High-Frequency Flexible Printed Circuit. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01676] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yang Zhang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Zhiyu Liu
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Xianlong Zhang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Shaoyun Guo
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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44
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Duan J, Mei C, Wu W, Rao L, Fan H, Tang Y, Zhang A. Disilyl Bis(Secondary Amine)-Enabled Epoxy Ring-Opening and Silylotropic N → O Migration Leading to Low Dielectric Epoxy Copolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiang Duan
- College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Caihong Mei
- College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Wenli Wu
- College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Li Rao
- College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Heping Fan
- Haiso Technology Co. Ltd., Wuhan 430074, China
| | - Yiwen Tang
- College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
| | - Aidong Zhang
- College of Chemistry, Central China Normal University, Wuhan 430079, China
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45
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Xu Z, Croft ZL, Guo D, Cao K, Liu G. Recent development of polyimides: Synthesis, processing, and application in gas separation. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210001] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhen Xu
- Department of Chemistry Virginia Tech Blacksburg Virginia USA
| | - Zacary L. Croft
- Department of Chemistry Virginia Tech Blacksburg Virginia USA
| | - Dong Guo
- Department of Chemistry Virginia Tech Blacksburg Virginia USA
| | - Ke Cao
- Macromolecules Innovation Institute Virginia Tech Blacksburg Virginia USA
| | - Guoliang Liu
- Department of Chemistry Virginia Tech Blacksburg Virginia USA
- Macromolecules Innovation Institute Virginia Tech Blacksburg Virginia USA
- Department of Chemistry, Macromolecules Innovation Institute, and Division of Nanoscience, Academy of Integrated Science Virginia Tech Blacksburg Virginia USA
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46
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Huang C, Liu Y. Preparation of Meldrum's acid‐functionalized polyimides exhibiting organo‐soluble, reactive, self‐crosslinkable, and colorless features. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chien‐Ho Huang
- Department of Chemical Engineering National Tsing Hua University Hsinchu Taiwan
| | - Ying‐Ling Liu
- Department of Chemical Engineering National Tsing Hua University Hsinchu Taiwan
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47
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Popov IO, Popova MV, Omelian TV, Dobrydnev AV, Konovalova IS, Shishkina SV, Grygorenko OO, Volovenko YM. Reaction of Dialkylaminosulfur Trifluorides with β‐Keto Sulfonamides and β‐Keto Sulfones. ChemistrySelect 2021. [DOI: 10.1002/slct.202100864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ioann O. Popov
- Enamine Ltd. (http://www.enamine.net) Chervonotkatska Street 78 Kyiv 02660 Ukraine
- Taras Shevchenko National University of Kyiv Lva Tolstoho Street 12 Kyiv 01033 Ukraine
| | - Maria V. Popova
- Taras Shevchenko National University of Kyiv Lva Tolstoho Street 12 Kyiv 01033 Ukraine
| | - Taras V. Omelian
- Enamine Ltd. (http://www.enamine.net) Chervonotkatska Street 78 Kyiv 02660 Ukraine
- Taras Shevchenko National University of Kyiv Lva Tolstoho Street 12 Kyiv 01033 Ukraine
| | - Alexey V. Dobrydnev
- Enamine Ltd. (http://www.enamine.net) Chervonotkatska Street 78 Kyiv 02660 Ukraine
- Taras Shevchenko National University of Kyiv Lva Tolstoho Street 12 Kyiv 01033 Ukraine
| | - Irina S. Konovalova
- SSI “Institute for Single Crystals” National Academy of Science of Ukraine Nauky avenue 60 Kharkiv 61001 Ukraine
| | - Svitlana V. Shishkina
- SSI “Institute for Single Crystals” National Academy of Science of Ukraine Nauky avenue 60 Kharkiv 61001 Ukraine
- Department of Inorganic Chemistry V. N. Karazin Kharkiv National University Svobody square 4 Kharkiv 61077 Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd. (http://www.enamine.net) Chervonotkatska Street 78 Kyiv 02660 Ukraine
- Taras Shevchenko National University of Kyiv Lva Tolstoho Street 12 Kyiv 01033 Ukraine
| | - Yulian M. Volovenko
- Taras Shevchenko National University of Kyiv Lva Tolstoho Street 12 Kyiv 01033 Ukraine
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48
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Liu C, Xue T, Yang Y, Ouyang J, Chen H, Yang S, Li G, Cai D, Si Z, Li S, Qin P. Effect of crosslinker 3-methacryloxypropylmethyldimethoxysilane on UV-crosslinked PDMS-PTFPMS block copolymer membranes for ethanol pervaporation. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.01.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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49
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Zhang C, Li M, Sun H, Yue X. Breath figure‐derived porous fluorine‐containing poly(ether sulfone) membranes with low dielectric constant. POLYM INT 2021. [DOI: 10.1002/pi.6217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chongyang Zhang
- Alan G MacDiarmid Institute College of Chemistry, Jilin University Changchun China
| | - Mengzhu Li
- Alan G MacDiarmid Institute College of Chemistry, Jilin University Changchun China
| | - Handong Sun
- Alan G MacDiarmid Institute College of Chemistry, Jilin University Changchun China
| | - Xigui Yue
- Alan G MacDiarmid Institute College of Chemistry, Jilin University Changchun China
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50
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Hong W, Yuan L, Ma Y, Cui C, Zhang H, Yang S, Sun WH. Resin Transfer Moldable Fluorinated Phenylethynyl-Terminated Imide Oligomers with High T g: Structure-Melt Stability Relationship. Polymers (Basel) 2021; 13:polym13060903. [PMID: 33804261 PMCID: PMC7999610 DOI: 10.3390/polym13060903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 11/16/2022] Open
Abstract
Phenylethynyl-terminated aromatic polyimides meet requirements of resin transfer molding (RTM) and exhibits high glass transition temperature (Tg) were prepared. Moreover, the relationship between the polyimide backbones structure and their melting stability was investigated. The phenylethynyl-terminated polyimides were based on 4,4′-(hexafluorosiopropylidene)-diphthalic anhydride (6FDA) and different diamines of 3,4′-oxydianiline (3,4′-ODA), m-phenylenediamine (m-PDA) and 2,2′-bis(trifluoromethyl)benzidine (TFDB) were prepared. These oligoimides exhibit excellent melting flowability with wide processing temperature window and low minimum melt viscosities (<1 Pa·s). Two of the oligoimides display good melting stability at 280–290 °C, which meet the requirements of resin transfer molding (RTM) process. After thermally cured, all resins show high glass transition temperatures (Tgs, 363–391 °C) and good tensile strength (51–66 MPa). The cure kinetics studied by the differential scanning calorimetry (DSC), 13C nuclear magnetic resonance (13C NMR) characterization and density functional theory (DFT) definitely confirmed that the electron-withdrawing ability of oligoimide backbone can tremendously affect the curing reactivity of terminated phenylethynyl groups. The replacement of 3,4′-ODA units by m-PDA or TFDB units increase the electron-withdrawing ability of the backbone, which increase the curing rate of terminated phenylethynyl groups at processing temperatures, hence results in the worse melting stability.
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Affiliation(s)
- Weijie Hong
- Key Laboratory of Science and Technology on High-tech Polymer Materials, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China; (W.H.); (H.Z.)
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lili Yuan
- Key Laboratory of Science and Technology on High-tech Polymer Materials, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China; (W.H.); (H.Z.)
- Correspondence: (L.Y.); (S.Y.)
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (Y.M.); (W.-H.S.)
| | - Chao Cui
- Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China;
| | - Haoyang Zhang
- Key Laboratory of Science and Technology on High-tech Polymer Materials, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China; (W.H.); (H.Z.)
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shiyong Yang
- Key Laboratory of Science and Technology on High-tech Polymer Materials, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China; (W.H.); (H.Z.)
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (L.Y.); (S.Y.)
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (Y.M.); (W.-H.S.)
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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