1
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Park H, Choi H, Kim J, Yoo S, Mun HJ, Shin TJ, Won JC, Kim HY, Kim YH. Density Functional Theory-Based Approach For Dielectric Constant Estimation of Soluble Polyimide Insulators. J Phys Chem B 2024. [PMID: 38422507 DOI: 10.1021/acs.jpcb.3c07296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Evaluation of the insulating properties of polymers, such as the dielectric constant and dissipation factor, is crucial in electronic devices, including field-effect transistors and wireless communication applications. This study applies density functional theory (DFT) to predict the dielectric constant of soluble polyimides (SPIs). Various SPIs containing trifluoromethyl groups in the backbone with different pendant types, numbers, and symmetries are successfully synthesized, and their dielectric constants are evaluated and compared with the DFT-estimated values. Two types of DFT-optimized SPIs, single-chain and stacked-chain models, are used to describe the local geometries of the SPIs. In addition, to reveal the relationship between the molecular structure and dielectric constant, further investigations are conducted by considering the dielectric constant of composing ionic and electronic components. The DFT-estimated static dielectric constant of the single-chain model accurately reproduces the corresponding experimental value with at least 80% accuracy. Our approach provides a rational and accelerated strategy to evaluate polymer insulators for electronic devices based on cost-effective DFT calculations.
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Affiliation(s)
- Hyunjin Park
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Hyuk Choi
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jongseok Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Sungmi Yoo
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Hyun Jung Mun
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jong Chan Won
- Advanced Functional Polymers Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Hyun You Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yun Ho Kim
- Advanced Functional Polymers Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- KRICT School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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2
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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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3
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Jiang J, Wang Z, Sun Y, Qian Z, Cao Z, Wang Z, Zhou G. Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance. Polymers (Basel) 2023; 15:4330. [PMID: 37960010 PMCID: PMC10650800 DOI: 10.3390/polym15214330] [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: 09/01/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 11/15/2023] Open
Abstract
Low-dielectric constant polymers are widely used in various microelectronic materials. With the development of 5G communication technology, there is an urgent need for polymer materials with low dielectric constant at high frequency, good thermal resistance, and mechanical properties. In this study, four novel poly (aryl ether ketone) (PAEK) containing different numbers of methylene groups were synthesized via nucleophilic polycondensation reaction. At 10 GHz, these polymer films exhibit excellent dielectric properties with dielectric constants as low as 2.76. The relationship between the dielectric constant and the number of methylene groups is illustrated by constructing the amorphous accumulation cell model. In addition, methylene groups provided the polymer with favorable mechanical performance, including Young's modulus in the range of 2.17-2.21 GPa, the tensile strength from 82.0 to 88.5 MPa and the elongation at the break achieved 7.94%, respectively. Simultaneously, the polymer maintains good thermal resistance with a glass transition temperature (Tg) reaching 216 °C. The result indicates that the obtained novel PAEK is potentially valuable in the field of high-frequency communications.
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Affiliation(s)
- Jingwei Jiang
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, China; (J.J.); (Y.S.); (Z.Q.); (Z.C.)
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China;
| | - Zhichao Wang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China;
| | - Yunlong Sun
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, China; (J.J.); (Y.S.); (Z.Q.); (Z.C.)
| | - Zengxu Qian
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, China; (J.J.); (Y.S.); (Z.Q.); (Z.C.)
| | - Zengwen Cao
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, China; (J.J.); (Y.S.); (Z.Q.); (Z.C.)
| | - Zhipeng Wang
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, China; (J.J.); (Y.S.); (Z.Q.); (Z.C.)
| | - Guangyuan Zhou
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, China; (J.J.); (Y.S.); (Z.Q.); (Z.C.)
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4
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Guo C, Peng Q, Wei H, Liu J, Hu X, Peng J, Ma J, Ye X, Yang J. Phosphorus-Containing Flame-Retardant Benzocyclobutylene Composites with High Thermal Stability and Low CTE. ACS OMEGA 2023; 8:9464-9474. [PMID: 36936317 PMCID: PMC10018689 DOI: 10.1021/acsomega.2c08159] [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: 12/23/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
As a component of printed circuit substrate, copper clad laminate (CCL) needs to meet the performance requirements of heat resistance, flame retardancy, and low coefficient of thermal expansion (CTE), which, respectively, affects the stability, safety, and processability of terminal electronic products. In this paper, benzocyclobutylene (BCB)-functionalized phosphorus-oxygen flame retardant composites were prepared through introducing the BCB groups, and the performance was researched by thermogravimetric analysis, microcombustion calorimetry, and thermomechanical analysis. The research results show that these phosphorus oxide compounds containing BCB groups show good thermal stability and low total heat release (THR) after thermal curing, and the more BCB groups on the phosphorus oxide monomers, the better the thermal stability and flame retardancy of cured resins. The Td5 and THR of the composite (M3) are as high as 443 °C and 23.1 kJ/g, respectively. In addition, the CTE of M3 is as low as 16.71 ppm/°C. Introduction of BCB groups which can be crosslinked through heat to improve the thermal stability, flame retardancy, and reduced CTE of traditional organophosphorus flame retardant materials. These materials are expected to be good candidates for CCL substrates for electronic circuits.
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Affiliation(s)
- Chao Guo
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Qiuxia Peng
- School
of Materials Science and Engineering, Sichuan
University of Science & Engineering, Zigong 643000, China
| | - Hubo Wei
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jiaying Liu
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xinyu Hu
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Juan Peng
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jiajun Ma
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xu Ye
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- School
of Continuing Education, Southwest University
of Science and Technology, Mianyang 621010, China
| | - Junxiao Yang
- School
of Materials and Chemistry, Southwest University
of Science and Technology, Mianyang 621010, China
- State
Key Laboratory of Environmentally-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
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5
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Wang W, Cao Z, Wang Z. Investigation on the flame retardancy, thermal and mechanical properties of epoxy resin/cyanate ester composites based on
mSiO
2
@
ZrPB
and
DOPO‐HQ. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.5987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wenduo Wang
- Department of Polymeric Materials School of Materials Science and Engineering, Tongji University Shanghai China
| | - Zhilin Cao
- Department of Polymeric Materials School of Materials Science and Engineering, Tongji University Shanghai China
| | - Zhengzhou Wang
- Department of Polymeric Materials School of Materials Science and Engineering, Tongji University Shanghai China
- Key Laboratory of Advanced Civil Engineering Materials (Tongji University) Ministry of Education Shanghai China
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6
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Zhang W, Huang J, Guo X, Zhang W, Qian L, Qin Z. Double organic groups‐containing polyhedral oligomeric silsesquioxane filled epoxy with enhanced fire safety. J Appl Polym Sci 2022. [DOI: 10.1002/app.52461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenyuan Zhang
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering Beijing Institute of Technology Beijing China
| | - Jianfeng Huang
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering Beijing Institute of Technology Beijing China
| | - Xiaoyan Guo
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering Beijing Institute of Technology Beijing China
| | - Wenchao Zhang
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering Beijing Institute of Technology Beijing China
| | - Lijun Qian
- Engineering Laboratory of Non‐halogen Flame Retardants for Polymers Beijing Technology and Business University Beijing China
| | - Zhaolu Qin
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering Beijing Institute of Technology Beijing China
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7
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Shi Q, Peng Q, Wu S, Long Q, Deng Y, Huang Y, Ma J, Yang J. Benzocyclobutene‐containing Carbosilane Monomers as a Route to Low‐
κ
Dielectric and Low Dielectric Loss Materials. ChemistrySelect 2022. [DOI: 10.1002/slct.202104413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Qingyu Shi
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Qiuxia Peng
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Song Wu
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Quan Long
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Yueting Deng
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Yawen Huang
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Jiajun Ma
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
| | - Junxiao Yang
- State Key Laboratory of Environment-friendly Energy Materials &School of Material Science and Engineering Southwest University of Science and Technology 59 Qinglong Road Mianyang Sichuan 621010 P. R. China
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8
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Impedance and Dielectric Properties of PVC:NH 4I Solid Polymer Electrolytes (SPEs): Steps toward the Fabrication of SPEs with High Resistivity. MATERIALS 2022; 15:ma15062143. [PMID: 35329595 PMCID: PMC8950392 DOI: 10.3390/ma15062143] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 02/04/2023]
Abstract
In the present article, a simple technique is provided for the fabrication of a polymer electrolyte system composed of polyvinyl chloride (PVC) and doped with varying content of ammonium iodide (NH4I) salt using solution-casting methodology. The influences of NH4I on the structural, electrochemical, and electrical properties of PVC have been investigated using X-ray diffraction, electrochemical impedance spectroscopy (EIS), and dielectric properties. The X-ray study reveals the amorphous nature of the polymer-salt complex. The EIS measurement revealed an ionic conductivity of 5.57 × 10-10 S/cm for the electrolyte containing 10 wt.% of salt. Our hypothesis is provided, which demonstrated the likelihood of designing highly resistive solid electrolytes using the concept of a polymer electrolyte. Here, the results showed that the resistivity of the studied samples is not dramatically decreased with increasing NH4I. Bode plots distinguish the decrease in resistance or impedance with increasing salt contents. Dielectric measurements revealed a decrease in the dielectric constant with the increase of NH4I content in the PVC polymer. The relaxation time and dielectric properties of the electrolytes confirmed their non-Debye type behavior. This pattern has been validated by the existence of an incomplete semicircle in the Argand plot. Insulation materials with low εr have found widespread applications in electronic devices due to the reduction in delay, power dissipation, and crosstalk. In addition, an investigation of real and imaginary parts of electric modulus leads to the minimized electrode polarization being reached.
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9
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Zhu L, Zong L, Wang C, Liu X, Yuan B, Wang J, Jian X. Effect of di‐halogen monomers embraced in main chain of low‐dielectric colorless fluorene‐based poly(aryl ether)s on their performance. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Linyan Zhu
- Department of Polymer Science and Materials Dalian University of Technology Dalian China
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
- Engineering Research Center of Advanced Polymer and Composite Materials Ministry of Education Dalian China
| | - Lishuai Zong
- Department of Polymer Science and Materials Dalian University of Technology Dalian China
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
- Engineering Research Center of Advanced Polymer and Composite Materials Ministry of Education Dalian China
| | - Chenghao Wang
- Department of Polymer Science and Materials Dalian University of Technology Dalian China
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
- Engineering Research Center of Advanced Polymer and Composite Materials Ministry of Education Dalian China
| | - Xiuli Liu
- The 10th Research Institute of China Electronics Technology Group Corporation Chengdu China
| | - Bo Yuan
- The 10th Research Institute of China Electronics Technology Group Corporation Chengdu China
| | - Jinyan Wang
- Department of Polymer Science and Materials Dalian University of Technology Dalian China
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
- Engineering Research Center of Advanced Polymer and Composite Materials Ministry of Education Dalian China
| | - Xigao Jian
- Department of Polymer Science and Materials Dalian University of Technology Dalian China
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
- Engineering Research Center of Advanced Polymer and Composite Materials Ministry of Education Dalian China
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10
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Zhang P, Yao T, Xue K, Meng X, Zhang J, Liu L. Low‐dielectric constant and viscosity tetrafunctional bio‐based epoxy resin containing cyclic siloxane blocks. J Appl Polym Sci 2022. [DOI: 10.1002/app.52176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pengbo Zhang
- School of Chemical Engineering and Technology Harbin Institute of Technology Harbin PR China
| | - Tongjie Yao
- School of Chemical Engineering and Technology Harbin Institute of Technology Harbin PR China
| | - Kangle Xue
- School of Chemical Engineering and Technology Harbin Institute of Technology Harbin PR China
| | - Xianbin Meng
- School of Chemical Engineering and Technology Harbin Institute of Technology Harbin PR China
| | - Junying Zhang
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education Beijing University of Chemical Technology Beijing PR China
| | - Li Liu
- School of Chemical Engineering and Technology Harbin Institute of Technology Harbin PR China
- State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin PR China
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11
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Li J, Chen M, Wang Y. Preparation and properties of a fluorinated epoxy resin with low dielectric constant. J Appl Polym Sci 2022. [DOI: 10.1002/app.52132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jinzhao Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymeric Materials Engineering Sichuan University Chengdu China
| | - Mengdi Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymeric Materials Engineering Sichuan University Chengdu China
| | - Yuechuan Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymeric Materials Engineering Sichuan University Chengdu China
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12
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Alentiev DA, Bermeshev MV. Design and Synthesis of Porous Organic Polymeric Materials from Norbornene Derivatives. POLYM REV 2021. [DOI: 10.1080/15583724.2021.1933026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Dmitry A. Alentiev
- Laboratory of Organosilicon and Carbocyclic Compounds, A.V. Topchiev Institute of petrochemical synthesis, Moscow, Russia
- Department of Organic Chemistry, D.I. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Maxim V. Bermeshev
- Laboratory of Organosilicon and Carbocyclic Compounds, A.V. Topchiev Institute of petrochemical synthesis, Moscow, Russia
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13
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Yang Y, Hong Y, Wang X. Utilizing the Diffusion of Fluorinated Polymers to Modify the Semiconductor/Dielectric Interface in Solution-Processed Conjugated Polymer Field-Effect Transistors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8682-8691. [PMID: 33565853 DOI: 10.1021/acsami.0c23058] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
It has been demonstrated that tailoring the properties of semiconductor/dielectric interfaces with fluorinated polymers yields better performance for organic field-effect transistors (OFETs). However, it remains a challenge to fabricate bottom-gate OFET devices on fluorinated dielectrics using solution-processed methods due to the poor wettability of fluorinated dielectrics. Here, we utilized the diffusion of fluorinated poly(methyl methacrylate) (PMMA) to construct the fluorine-rich semiconductor/dielectric interface to achieve the fabrication of bottom-gate OFETs with a solution-processed poly(3-hexylthiophene) (P3HT) semiconductor layer. The consequences indicate that the fluorinated dielectrics can effectively decrease the charge traps density at the semiconductor/dielectric interface and promote the edge-on orientation of P3HT on the dielectric surface. Thus, the devices based on fluorinated PMMA modified dielectrics exhibit higher carrier mobility and electrical stability than those of the fluorine-free devices. Our investigation affords a new strategy for the design and interface optimization of devices, which may further advance the performance of OFET devices.
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Affiliation(s)
- Yuhui Yang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yongming Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinping Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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14
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Huangfu MG, Shen DX, Zhi XX, Zhang Y, Jia YJ, An YC, Wei XY, Liu JG. Preparation and Characterization of Electrospun Fluoro-Containing Poly(imide-benzoxazole) Nano-Fibrous Membranes with Low Dielectric Constants and High Thermal Stability. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:537. [PMID: 33669852 PMCID: PMC7923222 DOI: 10.3390/nano11020537] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 11/30/2022]
Abstract
The rapid development of advanced high-frequency mobile communication techniques has advanced urgent requirements for polymer materials with high-temperature resistance and good dielectric properties, including low dielectric constants (low-Dk) and low dielectric dissipation factors (low-Df). The relatively poor dielectric properties of common polymer candidates, such as standard polyimides (PIs) greatly limited their application in high-frequency areas. In the current work, benzoxazole units were successfully incorporated into the molecular structures of the fluoro-containing PIs to afford the poly(imide-benzoxazole) (PIBO) nano-fibrous membranes (NFMs) via electrospinning fabrication. First, the PI NFMs were prepared by the electrospinning procedure from organo-soluble PI resins derived from 2,2'-bis(3,4-dicarboxy-phenyl)hexafluoropropane dianhydride (6FDA) and aromatic diamines containing ortho-hydroxy-substituted benzamide units, including 2,2-bis[3-(4-aminobenzamide)-4-hydroxylphenyl]hexafluoropropane (p6FAHP) and 2,2-bis[3-(3-aminobenzamide)-4-hydroxyphenyl]hexafluoropropane (m6FAHP). Then, the PI NFMs were thermally dehydrated at 350 °C in nitrogen to afford the PIBO NFMs. The average fiber diameters (dav) for the PIBO NFMs were 1225 nm for PIBO-1 derived from PI-1 (6FDA-p6FAHP) precursor and 816 nm for PIBO-2 derived from PI-2 (6FDA-m6FAHP). The derived PIBO NFMs showed good thermal stability with the glass transition temperatures (Tgs) over 310 °C and the 5% weight loss temperatures (T5%) higher than 500 °C in nitrogen. The PIBO NFMs showed low dielectric features with the Dk value of 1.64 for PIBO-1 and 1.82 for PIBO-2 at the frequency of 1 MHz, respectively. The Df values were in the range of 0.010~0.018 for the PIBO NFMs.
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Affiliation(s)
- Meng-Ge Huangfu
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
| | - Deng-Xiong Shen
- Aerospace Research Institute of Materials& Processing Technology, Beijing 100076, China;
| | - Xin-Xin Zhi
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
| | - Yan Zhang
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
| | - Yan-Jiang Jia
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
| | - Yuan-Cheng An
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
| | - Xin-Ying Wei
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
| | - Jin-Gang Liu
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; (M.-G.H.); (X.-X.Z.); (Y.Z.); (Y.-J.J.); (Y.-C.A.); (X.-Y.W.)
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15
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Liu S, Feng Q, Li Y, Chen Z, Zhao J. Simultaneously Improving Dielectric and Mechanical Properties of Crown Ether/Fluorinated Polyimide Films with Necklace‐Like Supramolecular Structure. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shumei Liu
- School of Materials Science and Engineering South China University of Technology Guangzhou Guangdong 510640 China
- The Key Laboratory of Polymer Processing Engineering Ministry of Education Guangzhou Guangdong 510640 China
| | - Qi Feng
- School of Materials Science and Engineering South China University of Technology Guangzhou Guangdong 510640 China
| | - Yang Li
- School of Materials Science and Engineering South China University of Technology Guangzhou Guangdong 510640 China
| | - Zhigeng Chen
- School of Materials Science and Engineering South China University of Technology Guangzhou Guangdong 510640 China
- The Key Laboratory of Polymer Processing Engineering Ministry of Education Guangzhou Guangdong 510640 China
| | - Jianqing Zhao
- School of Materials Science and Engineering South China University of Technology Guangzhou Guangdong 510640 China
- The Key Laboratory of Polymer Processing Engineering Ministry of Education Guangzhou Guangdong 510640 China
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16
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Zhang F, Li J, Wang T, Huang C, Ji F, Shan L, Zhang G, Sun R, Wong C. Fluorinated graphene/polyimide nanocomposites for advanced electronic packaging applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.49801] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Fan Zhang
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
- Shenzhen College of Advanced Technology University of Chinese Academy of Sciences Shenzhen China
| | - Jinhui Li
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Tao Wang
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
- Shenzhen College of Advanced Technology University of Chinese Academy of Sciences Shenzhen China
| | - Chao Huang
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
- Department of Nano Science and Technology Institute University of Science and Technology of China Suzhou China
| | - Fei Ji
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Liang Shan
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Guoping Zhang
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Rong Sun
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Ching‐ping Wong
- Shenzhen Institute of Advanced Electronic Materials Shenzhen Fundamental Research Institutions China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta Georgia USA
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17
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Thomson CG, Lee AL, Vilela F. Heterogeneous photocatalysis in flow chemical reactors. Beilstein J Org Chem 2020; 16:1495-1549. [PMID: 32647551 PMCID: PMC7323633 DOI: 10.3762/bjoc.16.125] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022] Open
Abstract
The synergy between photocatalysis and continuous flow chemical reactors has shifted the paradigms of photochemistry, opening new avenues of research with safer and scalable processes that can be readily implemented in academia and industry. Current state-of-the-art photocatalysts are homogeneous transition metal complexes that have favourable photophysical properties, wide electrochemical redox potentials, and photostability. However, these photocatalysts present serious drawbacks, such as toxicity, limited availability, and the overall cost of rare transition metal elements. This reduces their long-term viability, especially at an industrial scale. Heterogeneous photocatalysts (HPCats) are an attractive alternative, as the requirement for the separation and purification is largely removed, but typically at the cost of efficiency. Flow chemical reactors can, to a large extent, mitigate the loss in efficiency through reactor designs that enhance mass transport and irradiation. Herein, we review some important developments of heterogeneous photocatalytic materials and their application in flow reactors for sustainable organic synthesis. Further, the application of continuous flow heterogeneous photocatalysis in environmental remediation is briefly discussed to present some interesting reactor designs that could be implemented to enhance organic synthesis.
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Affiliation(s)
- Christopher G Thomson
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS Scotland, United Kingdom
| | - Ai-Lan Lee
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS Scotland, United Kingdom
| | - Filipe Vilela
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS Scotland, United Kingdom
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18
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Wang Z, Xie Y, Shang Y, Xu D, Jiang Z, Xu Q, Zhou C, Zhang H. Preparation and Properties of Novel Cross-Linked Fluorinated Poly(aryl ether) with Low Dielectric Constant and High Thermal Stability. Macromol Rapid Commun 2020; 41:e2000100. [PMID: 32459020 DOI: 10.1002/marc.202000100] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/02/2020] [Indexed: 12/16/2022]
Abstract
Fluorinated poly(aryl ether)s (FPAEs) have attracted much attention due to their high thermal stability, excellent mechanical strength, and low dielectric constant. High-molecular-weight fluorinated poly(aryl ether) containing phenylethynyl (FPAE-PE) is successfully synthesized by nucleophilic substitution between 3-ethynylphenol and FPAE. The cross-linked fluorinated poly(aryl ether) (C-FPAE-PE) is prepared by thermal treatment of FPAE-PE at 300 °C. The thermal stability, dynamic thermomechanical property, and dielectric performance of C-FPAE-PE are systematically studied. C-FPAE-PE has excellent heat resistance with 5% weight loss temperature (Td5% ) at 490 °C in air and high thermomechanical properties with storage modulus retention of 50% at 215 °C. C-FPAE-PE displays low and steady dielectric constant of 2.4 and dielectric loss of 0.004 at 215 °C, exhibiting potential applications in the field of microelectronics, communication technology, and energy storage as high-temperature low dielectric materials.
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Affiliation(s)
- Zhaoyang Wang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yunrui Xie
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun, 130022, China
| | - Yingshuang Shang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Da Xu
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Zilong Jiang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Qinfei Xu
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Chenyi Zhou
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Haibo Zhang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
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19
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Li X, Huang Y, Ye X, Fan L, Peng Q, Hu H, Yang J. A facile way via integrating sol–gel and Grignard reaction to prepare siloxane/carbosilane hybridized benzocyclobutene resins with hyperbranched structure, low dielectric constant, and high thermal stability. J Appl Polym Sci 2020. [DOI: 10.1002/app.49074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xian Li
- School of Materials Science and EngineeringSouthwest University of Science and Technology Mianyang China
- State Key Laboratory of Environmental‐friendly Energy Materials, School of Material Science and EngineeringSouthwest University of Science and Technology Mianyang China
| | - Yawen Huang
- State Key Laboratory of Environmental‐friendly Energy Materials, School of Material Science and EngineeringSouthwest University of Science and Technology Mianyang China
| | - Xu Ye
- School of Materials Science and EngineeringSouthwest University of Science and Technology Mianyang China
| | - Li Fan
- State Key Laboratory of Environmental‐friendly Energy Materials, School of Material Science and EngineeringSouthwest University of Science and Technology Mianyang China
- School of National Defense Science and TechnologySouthwest University of Science and Technology Mianyang China
| | - Qiuxia Peng
- State Key Laboratory of Environmental‐friendly Energy Materials, School of Material Science and EngineeringSouthwest University of Science and Technology Mianyang China
| | - Huan Hu
- State Key Laboratory of Environmental‐friendly Energy Materials, School of Material Science and EngineeringSouthwest University of Science and Technology Mianyang China
| | - Junxiao Yang
- State Key Laboratory of Environmental‐friendly Energy Materials, School of Material Science and EngineeringSouthwest University of Science and Technology Mianyang China
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20
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Zhang X, Zhang Y, Zhou Q, Zhang X, Guo S. Symmetrical “Sandwich” Polybutadiene Film with High-Frequency Low Dielectric Constants, Ultralow Dielectric Loss, and High Adhesive Strength. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05676] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuan Zhang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yang Zhang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Qian Zhou
- 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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21
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Lin Y, Chiang C, Kuo C, Hsu S, Higashihara T, Ueda M, Chen W. A compatible and crosslinked poly(2‐allyl‐6‐methylphenol‐
co
‐2,6‐dimethylphenol)/polystyrene blend for insulating adhesive film at high frequency. J Appl Polym Sci 2019. [DOI: 10.1002/app.47828] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yan‐Cheng Lin
- Department of Chemical EngineeringNational Taiwan UniversityNo. 1, Roosevelt Road, Section 4, Daan District, Taipei 10617 Republic of China
| | - Chi‐Haw Chiang
- Department of ChemistryNational Chung‐Shan Institute of Science and Technology No.481, Sec. Jia'an, Zhongzheng Road, Longtan District, Taoyuan City 325 Republic of China
- Department of Chemical EngineeringNational Tsing Hua University No. 101, Kuang‐Fu Road, Section 2, Hsinchu 30013 Republic of China
| | - Chih‐Cheng Kuo
- Department of Chemical EngineeringNational Taiwan UniversityNo. 1, Roosevelt Road, Section 4, Daan District, Taipei 10617 Republic of China
| | - Sheng‐Ning Hsu
- Department of Chemical EngineeringNational Taiwan UniversityNo. 1, Roosevelt Road, Section 4, Daan District, Taipei 10617 Republic of China
| | - Tomoya Higashihara
- Department of Organic Materials Science, Graduate School of Organic Materials ScienceYamagata University 4‐3‐16, Jonan, Yonezawa, Yamagata 992‐8510 Japan
| | - Mitsuru Ueda
- Department of Chemical EngineeringNational Taiwan UniversityNo. 1, Roosevelt Road, Section 4, Daan District, Taipei 10617 Republic of China
- Department of Chemical and Materials Engineering, College of EngineeringNational Central University 300, Zhongda Road, Zhongli District, Taoyuan City 32001 Republic of China
| | - Wen‐Chang Chen
- Department of Chemical EngineeringNational Taiwan UniversityNo. 1, Roosevelt Road, Section 4, Daan District, Taipei 10617 Republic of China
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22
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Lian R, Lei X, Chen Y, Zhang Q. Hyperbranched‐polysiloxane‐based hyperbranched polyimide films with low dielectric permittivity and high mechanical and thermal properties. J Appl Polym Sci 2019. [DOI: 10.1002/app.47771] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ruhe Lian
- Department of Applied Chemistry, MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary ConditionsSchool of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Xingfeng Lei
- Department of Applied Chemistry, MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary ConditionsSchool of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Yanhui Chen
- Department of Applied Chemistry, MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary ConditionsSchool of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Qiuyu Zhang
- Department of Applied Chemistry, MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary ConditionsSchool of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
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23
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Ji D, Li T, Hu W, Fuchs H. Recent Progress in Aromatic Polyimide Dielectrics for Organic Electronic Devices and Circuits. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806070. [PMID: 30762268 DOI: 10.1002/adma.201806070] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/06/2018] [Indexed: 05/05/2023]
Abstract
Polymeric dielectrics play a key role in the realization of flexible organic electronics, especially for the fabrication of scalable device arrays and integrated circuits. Among a wide variety of polymeric dielectric materials, aromatic polyimides (PIs) are flexible, lightweight, and strongly resistant to high-temperature processing and corrosive etchants and, therefore, have become promising candidates as gate dielectrics with good feasibility in manufacturing organic electronic devices. More significantly, the characteristics of PIs can be conveniently modulated by the design of their chemical structures. Herein, from the perspective of structure optimization and interface engineering, a brief overview of recent progress in PI-based dielectrics for organic electronic devices and circuits is provided. Also, an outlook of future research directions and challenges for polyimide dielectric materials is presented.
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Affiliation(s)
- Deyang Ji
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149, Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149, Münster, Germany
| | - Tao Li
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wenping Hu
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| | - Harald Fuchs
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Straße 10, 48149, Münster, Germany
- Center for Nanotechnology, Heisenbergstraße 11, 48149, Münster, Germany
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24
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Bonardd S, Alegria A, Saldias C, Leiva A, Kortaberria G. Polyitaconates: A New Family of "All-Polymer" Dielectrics. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38476-38492. [PMID: 30346120 DOI: 10.1021/acsami.8b14636] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This work presents the synthesis of new poly(itaconate)s containing sulfone or nitrile pendant groups through conventional radical polymerization together with their characterization and comparison with poly(methacrylate)s containing identical groups. Structural and thermal characterization has been carried out in terms of Fourier transform infrared spectroscopy, differential scanning calorimetry, nuclear magnetic resonance, and thermogravimetric analysis. Characterized by broad band dielectric spectroscopy (BDS), all polymers showed dielectric constant values between 7 and 10 (at 25 °C and 1 kHz) and relative low dielectric loss values (≈0.02). BDS measurements showed, for all the polymers analyzed, notorious subglass transitions even at temperatures below -100 °C, resulting in a broad temperature interval in which these polymers exhibit high dielectric constant and could work without high losses. Therefore, these materials seem to be good candidates for dielectric applications such as energy storage, among others.
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Affiliation(s)
- Sebastian Bonardd
- Departamento de Química Física, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 302, Correo 22 , Santiago 7820436 , Chile
- "Materials + Technologies" Group, Departamento Ingeniería Química y Medio Ambiente, Escuela Univ Politécnica , Universidad País Vasco/Euskal Herriko Unibertsitatea , Pza Europa 1 , 20018 . Donostia-San Sebastián , Spain
| | - Angel Alegria
- Materials Physics Center, CSIC-UPV/EHU , Paseo Manuel Lardizábal 5 , San Sebastian 20018 , Spain
- Departamento Física de Materiales , Universidad del País Vasco , Paseo Manuel Lardizábal 3 , San Sebastian 20018 , Spain
| | - Cesar Saldias
- Departamento de Química Física, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 302, Correo 22 , Santiago 7820436 , Chile
| | - Angel Leiva
- Departamento de Química Física, Facultad de Química , Pontificia Universidad Católica de Chile , Casilla 302, Correo 22 , Santiago 7820436 , Chile
| | - Galder Kortaberria
- "Materials + Technologies" Group, Departamento Ingeniería Química y Medio Ambiente, Escuela Univ Politécnica , Universidad País Vasco/Euskal Herriko Unibertsitatea , Pza Europa 1 , 20018 . Donostia-San Sebastián , Spain
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25
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Chen CH, Liu CH, Ariraman M, Lin CH, Juang TY. Phosphinated Poly(aryl ether)s with Acetic/Phenyl Methacrylic/Vinylbenzyl Ether Moieties for High- T g and Low-Dielectric Thermosets. ACS OMEGA 2018; 3:6031-6038. [PMID: 31458793 PMCID: PMC6644485 DOI: 10.1021/acsomega.8b00615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 05/21/2018] [Indexed: 06/10/2023]
Abstract
To achieve insulating materials with a low-dielectric characteristic for high-frequency communication applications, three phosphinated poly(aryl ether)s: P1-act (with acetic moiety), P1-mma (with phenyl methacrylic moiety), and P1-vbe (with vinylbenzyl ether moiety) were modified from a phenol-functionalized phosphinated poly(aryl ether) (P1). P1-act and P1-mma, both with active ester linkages (Ph-O-(C=O)-), were reacted with three commercial epoxy resins (diglycidyl ether of bisphenol A, HP7200, and cresol novolac epoxy) to obtain secondary hydroxyl-free epoxy thermosets. Because of the secondary hydroxyl-free structure, epoxy thermosets cured by P1-act and P1-mma show an 11-15% reduction in dielectric constant than those cured by P1. P1-vbe, with reactive vinylbenzyl ether moieties, was self-cured to a high-performance thermoset with a T g value as high as 302 °C and a dielectric constant as low as 2.64U. High-T g and low-dielectric thermosets have been developed in this work.
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Affiliation(s)
- Chien-Han Chen
- Department
of Chemical Engineering, National Chung
Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan
| | - Chan-Hua Liu
- Department
of Chemical Engineering, National Chung
Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan
| | - Mathivathanan Ariraman
- Department
of Chemical Engineering, National Chung
Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan
| | - Ching-Hsuan Lin
- Department
of Chemical Engineering, National Chung
Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan
| | - Tzong-Yuan Juang
- Department
of Cosmeceutics, China Medical University, 91 Hsueh-Shih Road, Taichung 402, Taiwan
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26
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Lin CM, Chen CH, Lin CH, Su WC, Juang TY. Using Dicyclopentadiene-Derived Polyarylates as Epoxy Curing Agents To Achieve High T g and Low Dielectric Epoxy Thermosets. ACS OMEGA 2018; 3:4295-4305. [PMID: 31458658 PMCID: PMC6641589 DOI: 10.1021/acsomega.8b00256] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/03/2018] [Indexed: 06/01/2023]
Abstract
To achieve high-T g and low-dielectric epoxy thermosets, four dicyclopentadiene-derived polyarylates (26-P, 26-M, 236-P, and 236-M) were prepared from 2,6-dimethyl (or 2,3,6-trimethyl) phenol-dicyclopentadiene adduct with terephthaloyl (or isophthaloyl) chloride by high-temperature solution polymerization. The resulting polyarylates, exhibiting active ester linkages (Ph-O-(C=O)-) are found to be reactive toward a commercial dicyclopentadiene phenol epoxy (HP7200) in the presence of some lone-pair electron-containing compounds. Five compounds including 4-dimethylaminopyridine (DMAP), imidazole, 2-methylimidazole, triphenylphosphine, and triphenylimidazole have been evaluated as a catalyst for the curing reactions. We found that DMAP, with the smallest pK b among them, is the best catalyst according to differential scanning calorimetry, infrared, and thermal analyses. The thermal and dielectric properties of the polyarylate/HP7200 thermosets are evaluated. We found that they exhibit a high T g characteristic (e.g., T g is 238 °C for DMAP-catalyzed, 236-P/HP7200 thermoset). Furthermore, because of the hydrophobic methyl and cycloaliphatic moieties, and the secondary hydroxyl-free structure, polyarylate/HP7200 thermosets show a relative low-dielectric constant of around 2.75 U. The detailed structure-properties relationship is discussed in this work.
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Affiliation(s)
- Chia-Min Lin
- Department
of Chemical Engineering, National Chung
Hsing University, Taichung 40227, Taiwan
| | - Chien-Han Chen
- Department
of Chemical Engineering, National Chung
Hsing University, Taichung 40227, Taiwan
| | - Ching-Hsuan Lin
- Department
of Chemical Engineering, National Chung
Hsing University, Taichung 40227, Taiwan
| | - Wen Chiung Su
- Chung
Shan Institute of Science and Technology, Lungtan, Tauyuan 32546, Taiwan
| | - Tzong-Yuan Juang
- Department
of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
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27
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Chen CH, Lee KW, Lin CH, Juang TY. Low-Dissipation Thermosets Derived from Oligo(2,6-Dimethyl Phenylene Oxide)-Containing Benzoxazines. Polymers (Basel) 2018; 10:E411. [PMID: 30966446 PMCID: PMC6415260 DOI: 10.3390/polym10040411] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 03/29/2018] [Accepted: 04/02/2018] [Indexed: 11/30/2022] Open
Abstract
Poly(2,6-dimethyl phenyl oxide) (PPO) is known for its low dissipation factor. To achieve insulating materials with low dissipation factors for high-frequency communication applications, a telechelic oligomer-type benzoxazine (P-APPO) and a main-chain type benzoxazine polymer (BPA-APPO) were prepared from an amine end-capped oligo (2,6-dimethyl phenylene oxide) (APPO). The APPO was prepared from a nucleophilic substitution of a phenol-end capped oligo (2,6-dimethyl phenylene oxide) (a commercial product, SA 90) with fluoronitrobenzene, and followed by catalytic hydrogenation. After self-curing or curing with a dicyclopentadiene-phenol epoxy (HP 7200), thermosets with high-Tg and low-dissipation factor can be achieved. Furthermore, the resulting epoxy thermosets show better thermal and dielectric properties than those of epoxy thermoset cured from its precursor SA90, demonstrating it is a successful modification in simultaneously enhancing the thermal and dielectric properties.
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Affiliation(s)
- Chien-Han Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Kuan-Wei Lee
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Ching-Hsuan Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Tzong-Yuan Juang
- Department of Cosmeceutics, China Medical University, Taichung 404, Taiwan.
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28
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Huang KY, Chi HY, Kao PK, Huang FH, Jian QM, Cheng IC, Lee WY, Hsu CC, Kang DY. Atmospheric Pressure Plasma Jet-Assisted Synthesis of Zeolite-Based Low-k Thin Films. ACS APPLIED MATERIALS & INTERFACES 2018; 10:900-908. [PMID: 29211438 DOI: 10.1021/acsami.7b16410] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Zeolites are ideal low-dielectric constant (low-k) materials. This paper reports on a novel plasma-assisted approach to the synthesis of low-k thin films comprising pure-silica zeolite MFI. The proposed method involves treating the aged solution using an atmospheric pressure plasma jet (APPJ). The high reactivity of the resulting nitrogen plasma helps to produce zeolite crystals with high crystallinity and uniform crystal size distribution. The APPJ treatment also remarkably reduces the time for hydrothermal reaction. The zeolite MFI suspensions synthesized with the APPJ treatment are used for the wet deposition to form thin films. The deposited zeolite thin films possessed dense morphology and high crystallinity, which overcome the trade-off between crystallinity and film quality. Zeolite thin films synthesized using the proposed APPJ treatment achieve low leakage current (on the order of 10-8 A/cm2) and high Young's modulus (12 GPa), outperforming the control sample synthesized without plasma treatment. The dielectric constant of our zeolite thin films was as low as 1.41. The overall performance of the low-k thin films synthesized with the APPJ treatment far exceed existing low-k films comprising pure-silica MFI.
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Affiliation(s)
| | | | | | | | | | | | - Wen-Ya Lee
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology , Taipei 10608, Taiwan
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Joseph AM, Nagendra B, Surendran KP, Gowd EB. Syndiotactic Polystyrene/Hybrid Silica Spheres of POSS Siloxane Composites Exhibiting Ultralow Dielectric Constant. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19474-83. [PMID: 26287385 DOI: 10.1021/acsami.5b05933] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Homogeneously dispersed hybrid silica/syndiotactic polystyrene composites were investigated for low-κ dielectric applications. The composites were prepared by a solution blending method, and their microstructures were analyzed by SEM, TEM, and AFM. Crystallization and phase transformation behavior of sPS were investigated using differential scanning calorimetry and wide-angle X-ray diffraction. These composites exhibited improved thermal stability and reduced thermal expansion coefficients. Promising dielectric properties were observed for the composites in the microwave frequency region with a dielectric constant (κ = 1.95) and loss (tan δ = 10(-4)) at 5 GHz.
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Affiliation(s)
- Angel Mary Joseph
- Materials Science and Technology Division (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology , Trivandrum 695019, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 001, India
| | - Baku Nagendra
- Materials Science and Technology Division (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology , Trivandrum 695019, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 001, India
| | - K P Surendran
- Materials Science and Technology Division (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology , Trivandrum 695019, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 001, India
| | - E Bhoje Gowd
- Materials Science and Technology Division (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology , Trivandrum 695019, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 001, India
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Chen Y, Yang Z, Guo CX, Ni CY, Ren ZG, Li HX, Lang JP. Iodine-Induced Solvothermal Formation of Viologen Iodobismuthates. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000755] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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