Article
Polymer Science
Jianhao He, Xueliang Wu, Yuanrong Cheng
Summary: A novel benzocyclobutene (BCB) and trifluoromethyl functionalized diamine monomer (BFDA) was synthesized and used to prepare a series of co-polyimides with different BCB content (PI-BFs). The dielectric constant of the cured PI-BFs decreased significantly with the increase of BCB content, and the dielectric constant of PI-BF40% could reach 2.72 at 1 MHz. BCB also contributed to improve the glass transition temperature, initial storage modulus, and thermo-size stability of PI-BFs. Moreover, PI-BFs exhibited excellent thermal stability, good transparency, and low water uptake.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Gang Huang, Linxuan Fang, Caiyun Wang, Menglu Dai, Jing Sun, Qiang Fang
Summary: A new bio-based low dielectric constant precursor with excellent thermal stability and low water absorption has been successfully synthesized. It shows a low dielectric constant and dielectric loss, making it suitable as an encapsulation resin for the microelectronic industry.
Article
Polymer Science
Hubo Wei, Xian Li, Xu Ye, Chao Guo, Juan Peng, Jiaying Liu, Xinyu Hu, Junxiao Yang, Jinxiang Chen
Summary: Modified silicone resins have gained attention in the field of microelectronics due to their excellent physical properties and molecular modifiability. In this study, functional silicone resin with different BCB contents was prepared and showed low dielectric constant and thermal stability. By increasing the BCB structural units, significant improvements in performance were observed, and the obtained silicone resins do not require melting and dissolution during processing. The mechanical properties of the resins can also be controlled by adjusting the BCB content, making them potentially useful in the field of electronic packaging materials.
Article
Polymer Science
Meng Xie, Guodong Li, Wenjie Fan, Menglu Li, Quan Sun, Jin Guo, Shuang Xia, Wenxin Fu
Summary: This study reported a series of thermosetting benzocyclobutene (BCB) resins functionalized with organoalkoxysilanes (D4Sin) with tunable properties. These resins exhibit excellent low-dielectric (low-k) properties, good thermal stability, and high planarization, providing a solution for further reducing the dielectric constant for high-frequency applications.
Article
Engineering, Manufacturing
J. Barroeta Robles, P. Hubert
Summary: The dimensional stability of different materials was evaluated through measurements, and L-shaped laminates were manufactured and measured. It was found that cyanate ester materials have lower coefficients of thermal expansion and the smallest spring-in angle, demonstrating higher dimensional stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Green & Sustainable Science & Technology
M. Dai, J. Sun, Q. Fang
Summary: A new monomer (M1) and a control monomer (M2) have been obtained from a bio-based resveratrol, showing excellent heat resistance and dielectric properties after thermal curing. In contrast, the polymers containing oxygen atoms derived from resveratrol (cured M3 and cured M4) exhibit increased dielectric properties and lowered thermostability.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Biochemistry & Molecular Biology
Fei Fu, Minggui Shen, Dan Wang, He Liu, Shibin Shang, Fei-Long Hu, Zhanqian Song, Jie Song
Summary: This study successfully synthesized a low-k benzocyclobutene material by introducing rosin skeletons, which resulted in increased free volume, larger distance between molecular chains, and reduced polymer density. The introduction of hydrogenated phenanthrene rings did not affect other properties of the material. This research provides promising low-k materials for the development of electronics and microelectronics.
Article
Polymer Science
Li Fan, Ke Cao, Huan Hu, Jiajun Ma, Qiuxia Peng, Xian Li, Yawen Huang, Junxiao Yang
Summary: By replacing the siloxane groups with silylbutylene groups, the dielectric constants of UV-curable resins can be further reduced while preserving their UV curable properties. The synthesized ADM-PBSC cured resins exhibit good mechanical properties and high thermal stability, with low dielectric constants and losses.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Polymer Science
Xiangsheng Meng, You Wen, Xianwei Wang, Dongliang Shen, Jingling Yan, Zhen Wang
Summary: A new class of imide oligomers and thermosets with improved overall properties was developed by exploiting the steric effects of BPAF. The BPAF-derived polymers exhibited superior solubility, higher melt viscosity, higher Tg and T5% values, and excellent high-frequency dielectric properties compared to the 3,4'-BPDA-derived polymers.
Article
Polymer Science
Xueliang Wu, Jing Cai, Yuanrong Cheng
Summary: This article introduces the preparation method of high-fluorine content PI with low dielectric constant and its excellent properties, including high thermal stability, low water absorption, and low dielectric constant.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Fengping Liu, Jing Sun, Qiang Fang
Summary: Through the Heck reaction, a fluorinated monomer with favorable dielectric properties and thermal stability has been synthesized, which can serve as a precursor for encapsulation resins in the field of high-frequency communication.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chao Guo, Qiuxia Peng, Hubo Wei, Jiaying Liu, Xinyu Hu, Juan Peng, Jiajun Ma, Xu Ye, Junxiao Yang
Summary: In this paper, phosphorus-oxygen flame retardant composites functionalized with benzocyclobutylene (BCB) groups were prepared and their performance were studied. The results showed that the composites with BCB groups exhibited good thermal stability and low total heat release (THR) after thermal curing, and the thermal stability and flame retardancy of cured resins improved with the increase of BCB groups on the phosphorus oxide monomers.
Article
Biochemistry & Molecular Biology
Fengping Liu, Minghui Li, Jing Sun, Qiang Fang
Summary: In this paper, two fluorinated monomers (BCB-F and 2BCB-F) were designed and successfully prepared from biomass anethole, which were used to obtain low-k polymers with good comprehensive properties. Cured BCB-F exhibited a comparable dielectric constant and better hydrophobicity, while cured 2BCB-F showed excellent heat resistance and dielectric properties. Therefore, anethole-based polymers are suitable candidates for matrix or encapsulation resins in electronics and microelectric fields.
Article
Engineering, Multidisciplinary
Jong-Ho Back, Chiwon Hwang, Dooyoung Baek, Dongwoo Kim, Youngchang Yu, Wonjoo Lee, Hyun-Joong Kim
Summary: This study investigates epoxy composites with tunable mechanical properties, including toughened polymers, elastomers, and pressure-sensitive adhesives, by adjusting the ratio of different types of epoxy resins. The results show that these epoxy composites can be used in structural adhesives and flexible electronics, exhibiting performance comparable to traditional tapes.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Polymer Science
Fengping Liu, Xingrong Chen, Jiaren Hou, Jing Sun, Qiang Fang
Summary: The trifluoromethyl-containing organosiloxane synthesized through the Piers-Rubinsztajn reaction exhibits good dielectric properties and thermal stability at high temperature, making it suitable for use as a matrix resin in 5G communication device fabrication.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Polymer Science
Jiaren Hou, Xingrong Chen, Jing Sun, Qiang Fang
Article
Chemistry, Multidisciplinary
Menglu Dai, Yangqing Tao, Linxuan Fang, Caiyun Wang, Jing Sun, Qiang Fang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Polymer Science
Fengping Liu, Xingrong Chen, Jiaren Hou, Jing Sun, Qiang Fang
Summary: The trifluoromethyl-containing organosiloxane synthesized through the Piers-Rubinsztajn reaction exhibits good dielectric properties and thermal stability at high temperature, making it suitable for use as a matrix resin in 5G communication device fabrication.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Jiaren Hou, Linxuan Fang, Gang Huang, Menglu Dai, Fengping Liu, Caiyun Wang, Minghui Li, Heng Zhang, Jing Sun, Qiang Fang
Summary: Biomass-derived low dielectric polymers are attracting attention due to their availability and renewability, showing potential for applications in the microelectronic industry, especially in 5G communication. This review summarizes recent progress in the synthesis and properties of various biomass-derived resins with good dielectric properties and high thermostability.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Fengping Liu, Jing Sun, Qiang Fang
Summary: Through the Heck reaction, a fluorinated monomer with favorable dielectric properties and thermal stability has been synthesized, which can serve as a precursor for encapsulation resins in the field of high-frequency communication.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Manling Shi, Gang Huang, Jing Sun, Qiang Fang
Summary: Two low-k polymers with good hydrophobicity and excellent dielectric properties have been synthesized via the Grubbs reaction from bio-based isoeugenol and anethole. The results demonstrate that incorporating trifluoromethyl-containing aromatic rings into the polymer greatly enhances its dielectric properties, making the fluorinated bio-based polymer suitable for 5G communication devices.
Article
Materials Science, Multidisciplinary
Yuanhao Feng, Jing Sun, Qiang Fang
Summary: Two fluoro-containing monomers were synthesized from bio-based eugenol and estragole and copolymerized with commercial bismaleimide to give a series of BMI polymers. The BMI polymer incorporated with one of the monomers exhibited low dielectric content, good hydrophobicity, and excellent thermostability, surpassing those of the commonly used allyl-modified maleimide resins. This study provides a method to enhance the properties of BMI through the utilization of biomass modifiers for high-frequency technology.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Fengping Liu, Minghui Li, Jing Sun, Qiang Fang
Summary: In this paper, two fluorinated monomers (BCB-F and 2BCB-F) were designed and successfully prepared from biomass anethole, which were used to obtain low-k polymers with good comprehensive properties. Cured BCB-F exhibited a comparable dielectric constant and better hydrophobicity, while cured 2BCB-F showed excellent heat resistance and dielectric properties. Therefore, anethole-based polymers are suitable candidates for matrix or encapsulation resins in electronics and microelectric fields.
Article
Polymer Science
Jiaren Hou, Jing Sun, Qiang Fang
Summary: Two new oxygen-free polymers (p-4F-BVS and p-6F-BVS) with excellent dielectric performance at 10 GHz frequency and low thermal expansion coefficient have been synthesized through thermal crosslinking reaction. The introduction of bulky -CF3 groups reduces the dielectric constant, while the absence of oxygen atoms decreases the dielectric loss. These polymers are highly desirable for advanced packaging materials in the microelectronics industry.
Article
Polymer Science
Minghui Li, Jing Sun, Qiang Fang
Summary: By synthesizing a bio-based monomer with high fluorine content and copolymerizing it with a monomer containing benzocyclobutene units, a resin with excellent dielectric properties and heat resistance can be obtained, suitable for application as encapsulation material in microelectric fields.
Article
Chemistry, Multidisciplinary
Linxuan Fang, Caiyun Wang, Menglu Dai, Gang Huang, Jing Sun, Qiang Fang
Summary: The new organic-inorganic hybrid polymers exhibit high transmittance, thermal stability, and refractive index. Even after immersion in water, they maintain stable optical properties, making them suitable for optical encapsulation resins for optoelectronic devices and antireflective coatings.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Polymer Science
Gang Huang, Linxuan Fang, Caiyun Wang, Menglu Dai, Jing Sun, Qiang Fang
Summary: A new bio-based low dielectric constant precursor with excellent thermal stability and low water absorption has been successfully synthesized. It shows a low dielectric constant and dielectric loss, making it suitable as an encapsulation resin for the microelectronic industry.
Article
Polymer Science
Linxuan Fang, Yangqing Tao, Junfeng Zhou, Caiyun Wang, Menglu Dai, Jing Sun, Qiang Fang
Summary: A new biobased low dielectric resin derived from vanillin and guaiacol has been synthesized, showing good dielectric properties and dimensional stability, making it suitable as an encapsulation material for the microelectronic industry.
Article
Chemistry, Multidisciplinary
Linxuan Fang, Yangqing Tao, Caiyun Wang, Menglu Dai, Gang Huang, Jing Sun, Qiang Fang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Polymer Science
Fengping Liu, Xingrong Chen, Linxuan Fang, Jing Sun, Qiang Fang
