Article
Polymer Science
Jingwei Jiang, Zhichao Wang, Yunlong Sun, Zengxu Qian, Zengwen Cao, Zhipeng Wang, Guangyuan Zhou
Summary: This study successfully synthesized novel polymer materials with low dielectric constant, good thermal resistance, and mechanical properties, and elucidated the relationship between dielectric constant and the number of methylene groups by constructing a model. The obtained polymer material has significant application value in the field of high-frequency communications.
Article
Materials Science, Multidisciplinary
Yuan Chen, Tingjian Huang, Chunhui Jiang, Tianhaoyue Zhong, Zexi Su, Qibin Xu, Mengjin Jiang, Pengqing Liu
Summary: The study investigated the grafting of Polyethylene glycols (PEG) onto Poly (ether ether ketone) (PEEK) hollow fiber membranes with different molecular weights and explored their effects on surface morphology, pore structure, filtration performance, and antifouling properties using bovine serum protein (BSA) as a model foulant. The research found that increasing hydrophilicity can improve membrane permeability, while long grafting chains may reduce permeability by blocking membrane pores. Additionally, adjusting grafting density and chain length can effectively enhance the antifouling performance of PEEK membranes.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Meiqi Ling, Kaifeng Yu, Jian Wang, Zhipeng Wang, Guangyuan Zhou
Summary: With the rapid development of 5G technology, low dielectric constant materials have a wide range of applications in microelectronic devices. In this study, a novel poly(aryl ether ketone) resin with low dielectric constant and good thermal stability, mechanical properties, and insulation properties was successfully synthesized.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Polymer Science
Zhejing Zhang, Na Yu, Haoran Sun, Ruihong Liu, Yixin Xu, Jingshuai Yang
Summary: We designed and prepared a series of anion exchange membranes (AEMs) based on poly(ether ketone cardo) (PEKC) to achieve high chemical stability and ionic conductivity. Among them, the PEKC-AP-Pip membrane shows the highest OH- conductivity, excellent mechanical strength, and good alkaline stability, making it a promising candidate for alkaline energy devices.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Materials Science, Characterization & Testing
Sen Niu, Xiaoxue Bai, Yimu Cheng, Hao Qin, Yunhe Zhang, Zhenhua Jiang
Summary: A series of PEEK-based blends with self-crosslinkable c-PEI were prepared by melt blending as high temperature dielectrics. The obtained polymer blends exhibited stable dielectric properties over a wide frequency and temperature range. The crosslinked networks in the blends efficiently restricted the movement of polymer segments, leading to suppressed dielectric loss and enhanced high temperature performance.
Article
Polymer Science
Huijuan Li, Miao Yi, Xin Yin, Wenliang Wu, Shiai Xu
Summary: The objective of this study is to prepare a new poly(aryl ether ketone) (PAEK) with low dielectric constant, high transparency and heat resistance by introducing fluorine atoms and phenolphthalein (PHPH) groups into the polymer backbone. The chemical structure, molecular weight and solubility of PAEK random copolymers were characterized by various analytical techniques. Transparent and flexible films were prepared from DMAc solvent, exhibiting high glass transition temperature, thermal stability, mechanical strength and excellent optical properties.
EXPRESS POLYMER LETTERS
(2023)
Article
Engineering, Manufacturing
Qinfei Xu, Wenhan Xu, Yang Yang, Xin Yin, Chenyi Zhou, Jinxuan Han, Xuefeng Li, Yingshuang Shang, Haibo Zhang
Summary: In this study, amorphous poly (aryl ether ketone) (aPAEK) was used as an interlayer reinforcement modifier to enhance the interlayer strength and reduce mechanical anisotropy of 3D printed PEEK parts. Introducing 7 wt% aPAEK in PEEK filaments increased the interlayer strength by 130% and reduced mechanical anisotropy in the XY plane to 1.1%.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
Xuan Chen, Qingyuan Shi, Jingmei Xu, Mengchi Ju, Jiahui Ren, Pengyun Zhao, Lingxin Meng, Jinxuan Lei, Zhe Wang
Summary: In this study, hybrid proton exchange membranes based on metal-organic frameworks and an organic matrix were prepared. These membranes exhibited excellent proton conductivities and good thermal stabilities. The functionalization of MOFs with imidazole and the uneven side chain structure synergistically contributed to improved proton transport. These hybrid membranes have the potential to be used as alternative proton exchange membranes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Lichao Shang, Dan Yao, Bohao Pang, Chengji Zhao
Summary: The presence of N-spirocyclic quaternary ammonium (QA) cations was found to enhance the alkaline stability of anion exchange membrane materials (AEM). By introducing N-spirocyclic QA cations and bulky spacers into the phenyl side chains simultaneously, the performance of AEM was improved, resulting in higher hydroxide conductivity and peak power density in fuel cells. Factors such as the presence of ether bonds in the main chain also play a role in alkaline stability, making this study a valuable reference for molecular design of AEMs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Zhaoqi Wang, Shouhai Zhang, Qian Liu, Yuning Chen, Zhihuan Weng, Xigao Jian
Summary: A series of new side-chain substitution poly(phthalazinone ether ketone)s were synthesized and a new anion exchanged membrane (QAPPEK-P) used for vanadium redox flow batteries was prepared, demonstrating improved cell performance with increasing ion-exchange capacity related to the content of side-chain phenyl groups.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Hui Wang, Xinming Du, Hongyu Zhang, Hongcheng Shen, Qian Liu, Zhe Wang
Summary: By adjusting the content of methylhydroquinone, the ion conductivity of AEM materials can be modified. PEEK-DABDA-80 membrane shows excellent mechanical properties and anti-swelling ability at 80 degrees C. Additionally, AEM materials exhibit good thermal stability and hold potential applications as alkaline AEMs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Biomedical
Zhe Zheng, Liqiu Hu, Yongmei Ge, Jianchao Qi, Qili Sun, Zhenjian Li, Lijun Lin, Bin Tang
Summary: In this study, strontium chondroitin sulfate was successfully introduced into the surface of poly(ether ether ketone) (PEEK) through a simple chemical grafting method. The modified PEEK material exhibited improved cell compatibility, osteogenic activity, and angiogenic activity, while reducing inflammation.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Polymer Science
Katharina Breul, Sebastian Seiffert
Summary: The rational design of transiently crosslinked polymer gels requires a deep understanding of how molecular and topological factors affect material properties, with distinct differences observed between random PUs and alternating PUs.
Article
Polymer Science
Tong Cao, Yifei Shi, Xiaoyu Li, Jun Peng, Xiaobo Liu, Yumin Huang
Summary: A new type of poly(arylene ether nitrile) copolymer with low dielectric constant and excellent thermal and mechanical properties has been designed and synthesized. The polymer exhibits stable performance in humid environments, making it an excellent dielectric material.
Article
Materials Science, Composites
Lan Jin, Jie Liu, Lixue Zhu, Jiale Ding, Yunhe Zhang, Zhenhua Jiang
Summary: By synthesizing a crosslinkable poly (aryl ether ketone) matrix and functionalizing boron nitride nanosheets, a novel nanocomposite with stable chemical bonding structure at interfaces via Diels-Alder reaction was obtained. The nanocomposites exhibit high breakdown strength, excellent dielectric stability at high temperature, significantly improved discharged energy density, and high charge-discharge efficiency. This work demonstrates that constructing crosslinked nanocomposites may be a viable way to fabricate high temperature dielectrics.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
Pengfei Huo, Jinyu Ba, Shuling Zhang, Xingrui Zhang, Zhi Geng, Yang Liu, Guibin Wang
HIGH PERFORMANCE POLYMERS
(2016)
Article
Engineering, Chemical
Pengfei Huo, Yang Liu, Ruiqi Na, Xingrui Zhang, Shuling Zhang, Guibin Wang
JOURNAL OF MEMBRANE SCIENCE
(2016)
Article
Polymer Science
Hongyan Yao, Kaixiang Shi, Ningning Song, Na Zhang, Pengfei Huo, Shiyang Zhu, Yunhe Zhang, Shaowei Guan
Article
Chemistry, Multidisciplinary
Siping Liu, Xiujuan Chen, Xiaoli Li, Pengfei Huo, Yiqun Wang, Long Bai, Wen Zhang, Maocheng Niu, Zhiguo Li
Article
Chemistry, Multidisciplinary
Ruiqi Na, Pengfei Huo, Xingrui Zhang, Shuling Zhang, Yinlong Du, Kai Zhu, Yaning Lu, Menghan Zhang, Jiashuang Luan, Guibin Wang
Article
Polymer Science
Pengfei Huo, Shoupeng Ni, Pu Hou, Zhiyu Xun, Yang Liu, Jiyou Gu
Article
Materials Science, Multidisciplinary
Jiuzhou Zhang, Pu Hou, Boxuan Xi, Wanru Lin, Yang Liu, Guibin Wang, Pengfei Huo
Summary: Introducing polyether side chains into poly(arylene ether sulfone) copolymers for flexible gel polymer electrolytes resulted in higher electrolyte uptake ratio and ionic conductivity. Supercapacitors based on this electrolyte exhibited high capacitance and energy density, along with excellent flexibility and cycle stability.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Agricultural Engineering
Kaixin Zhang, Yue Liu, Zixu Guo, Jian Wang, Yang Liu, Jianing Zhao, Pengfei Huo
Summary: The co-modification of corn straw lignin by demethylation/hydrothermal degradation significantly increased the hydroxyl content by 210.85%. The introduction of co-modified lignin into freezing activated wood fibers resulted in glue-free fiberboard with excellent comprehensive performance, meeting national standards. The interaction mechanism of co-modified lignin on wood fibers was explored through FTIR, DSC, and SEM analysis, showing strong hydrogen bond interactions for the glue-free fiberboard.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biochemistry & Molecular Biology
Jian Wang, Zhiyu Xun, Chenyang Zhao, Yang Liu, Jiyou Gu, Pengfei Huo
Summary: Researchers successfully prepared a polymer electrolyte based on soy protein isolate (SPI) through grafting modification, which exhibited excellent ionic conductivity. By combining with KI, a redox-active polymer electrolyte was formed, greatly improving the energy density of supercapacitors.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Engineering, Environmental
Pu Hou, Chenxiang Gao, Jian Wang, Jiuzhou Zhang, Yang Liu, Jiyou Gu, Pengfei Huo
Summary: In recent years, the importance of green and sustainable development has been recognized by more and more people. Current research focuses on preparing high strength transparent wood by filling delignified wood with resin. Inspired by this, gel polymer electrolytes with high ionic conductivity were prepared using delignified wood as substrate, polyurethane with different ratios of polyethylene glycol to 2,2-bis(hydroxymethyl)pro-pionic acid as filling polymer matrix, and lithium perchlorate as electrolyte. These electrolytes were applied in solid-state supercapacitors with activated carbon as working electrodes, showcasing excellent performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chenxiang Gao, Yuting Duan, Yang Liu, Jiyou Gu, Ziyi Guo, Pengfei Huo
Summary: The graft-modification of soybean protein isolate using polyacrylic acid improves its electrochemical performance and enhances the performance of supercapacitors.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Chenxiang Gao, Zunchang Gao, Yanqing Wei, Na Luo, Yang Liu, Pengfei Huo
Summary: This study developed a novel semi-interpenetrating network by combining quaternized gelatin with cross-linked poly(acrylic acid-co-acrylamide). The resulting composite hydrogel electrolyte showed high ionic conductivity and excellent electrochemical performance, enabling the flexible supercapacitor to operate safely in a wide potential window. The optimized supercapacitor exhibited high specific capacitance, outstanding energy density, and excellent cycling stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Jian Wang, Chenxiang Gao, Pu Hou, Yang Liu, Jianing Zhao, Pengfei Huo
Summary: A multifunctional hydrogel electrolyte made from covalently cross-linked lignin and interpenetrating gelatin in alkaline solutions has been developed. It possesses high ionic conductivity, strong adhesion, and anti-freezing properties. The optimized flexible supercapacitor with this hydrogel electrolyte exhibits a remarkable specific capacitance of 145.14 F/g and a high energy density of 4.86 Wh kg-1 at room temperature, retaining a comparable specific capacitance of 110.6 F/g even at -40 degrees Celsius.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Yanqing Wei, Yize Zhao, Yue Liu, Na Luo, Zunchang Gao, Pu Hou, Yang Liu, Yanhua Zhang, Pengfei Huo
Summary: In this study, the rectification ratio of ionic diodes was successfully increased by adding an appropriate amount of TAPP to the chitosan and sodium polyacrylate hydrogels. Moreover, the heterojunction hydrogel with TAPP doping exhibited a high open-circuit voltage, making it suitable for self-powered power supply devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Zhiyu Xun, Yang Liu, Jiyou Gu, Lingxiao Liu, Pengfei Huo
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
