Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance
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,...
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MDPI AG
2023-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/21/4330 |
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| author | Jingwei Jiang Zhichao Wang Yunlong Sun Zengxu Qian Zengwen Cao Zhipeng Wang Guangyuan Zhou |
| author_facet | Jingwei Jiang Zhichao Wang Yunlong Sun Zengxu Qian Zengwen Cao Zhipeng Wang Guangyuan Zhou |
| author_sort | Jingwei Jiang |
| collection | DOAJ |
| description | 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 (<i>T<sub>g</sub></i>) reaching 216 °C. The result indicates that the obtained novel PAEK is potentially valuable in the field of high-frequency communications. |
| first_indexed | 2024-03-11T11:22:57Z |
| format | Article |
| id | doaj.art-fc12c0ceb00a471ca4fdc7045851aaee |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T11:22:57Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-fc12c0ceb00a471ca4fdc7045851aaee2023-11-10T15:10:56ZengMDPI AGPolymers2073-43602023-11-011521433010.3390/polym15214330Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical PerformanceJingwei Jiang0Zhichao Wang1Yunlong Sun2Zengxu Qian3Zengwen Cao4Zhipeng Wang5Guangyuan Zhou6Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, ChinaSchool of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, ChinaDivision of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, ChinaDivision of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, ChinaDivision of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, ChinaDivision of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, ChinaDivision of Energy Materials (DNL22), Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Dalian 116023, ChinaLow-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 (<i>T<sub>g</sub></i>) reaching 216 °C. The result indicates that the obtained novel PAEK is potentially valuable in the field of high-frequency communications.https://www.mdpi.com/2073-4360/15/21/4330poly (aryl ether ketone)methylene groupsdielectric constantdielectric loss |
| spellingShingle | Jingwei Jiang Zhichao Wang Yunlong Sun Zengxu Qian Zengwen Cao Zhipeng Wang Guangyuan Zhou Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance Polymers poly (aryl ether ketone) methylene groups dielectric constant dielectric loss |
| title | Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance |
| title_full | Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance |
| title_fullStr | Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance |
| title_full_unstemmed | Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance |
| title_short | Amorphous Poly (Aryl Ether Ketones) Containing Methylene Groups with Excellent Thermal Resistance, Dielectric Properties and Mechanical Performance |
| title_sort | amorphous poly aryl ether ketones containing methylene groups with excellent thermal resistance dielectric properties and mechanical performance |
| topic | poly (aryl ether ketone) methylene groups dielectric constant dielectric loss |
| url | https://www.mdpi.com/2073-4360/15/21/4330 |
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