Article
Materials Science, Multidisciplinary
Weihua Han, Feng Gao, Lingyun Zhou, Lu Wang, Xiufu Hua, Xinyu Xue, Zhiqiang Li, Wei Luo, Lingyun Pang, Renbo Wei
Summary: A flexible FMWCNT/PEN metacomposite with negative permittivity was fabricated using a delayed phase inversion method, showing promising applications in flexible electronics. The metacomposite demonstrates a continuous conductive network and plasma-type negative permittivity spectrum, along with outstanding flexibility and stable dielectric properties even after multiple folding cycles. This work presents an innovative technique to achieve metacomposites with regulable negative permittivity and excellent mechanical properties.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Engineering, Multidisciplinary
Linsen Zuo, Kui Li, Dengxun Ren, Mingzhen Xu, Lifen Tong, Xiaobo Liu
Summary: By modifying the aramid fiber, a composite material with improved performance, including surface morphology, interfacial adhesion strength, and interlaminar shear strength, was obtained.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Polymer Science
Ying Zhu, Yumeng Luo, Xiran Tang, Lifen Tong, Xiaobo Liu
Summary: In this research, h-BN was added to PEN as a filler to improve its thermal conductivity and electrical insulation. The influence of filler content on properties was studied in depth. The results showed that the thermal conductivity of the composites increased to 0.5444 Wm(-1) K-1 at 30 wt% filler content, with a 22.89% increment compared to PEN copolymer without additive. The PEN/h-BN composite exhibited excellent thermal properties and improved dielectric constant and insulation performance. The tensile strength was 62.3 MPa and the elastic modulus was 3567.5 MPa. In conclusion, the 30 wt% h-BN/PEN composite prepared in this research has great potential and promising prospects in the field of electronics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Diao Yuan, Yajun Qin, Songsong Li, Shenghua Du, Yaoyao Xu, Qiang Weng, Pei Chen, Xinbing Chen, Zhongwei An
Summary: A novel monomer DFTMTE was synthesized and utilized to prepare densely sulfonated copolymer membranes with high ion exchange capacity and conductivity, exhibiting significantly improved performance compared to commercially available membranes, attributed to excellent microphase separation and quinoxaline-based crosslinking.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Zhuoyu Yin, Haobo Geng, Pengfei Yang, Benbing Shi, Chunyang Fan, Quan Peng, Hong Wu, Zhongyi Jiang
Summary: A sulfonated covalent organic framework nanosheets (TpPa-SO3H) were synthesized and incorporated into SPEEK matrix to prepare proton exchange membranes with increased ion exchange capacity and reduced swelling ratio. The SPEEK/TpPa-SO3H-5 membrane exhibited significantly improved proton conductivity and mechanical strength, leading to favorable performance in a single H-2/O-2 fuel cell.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Polymer Science
Penglun Zheng, Rui Wang, Zekun Li, Youren Li, Donghui Wang, Zhifa Li, Xiaoliang Peng, Chuanbang Liu, Lan Jiang, Quanyi Liu
Summary: The successful synthesis of UiO-66-NH2/CNT and its application in composite proton exchange membranes improved the thermal stability, tensile strength, and proton conductivity of the membranes while reducing methanol permeability.
HIGH PERFORMANCE POLYMERS
(2021)
Article
Engineering, Chemical
Xiulan Li, Xiaohong He, Yao Ling, Zhongxiang Bai, Chenchen Liu, Xiaobo Liu, Kun Jia
Summary: In this study, a super-engineering polyarylene ether nanofibrous membrane with covalently immobilized silver nanoparticles was synthesized. The composite membrane exhibited excellent hydrophilic/underwater super-hydrophobic surface wettability and strong antibacterial effects. After 20 cycles of separation, the membrane maintained high separation flux and efficiency, indicating its mechanical stability and anti-fouling features. The research holds significant importance and is rated as 9 out of 10.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Zahra Esmaeilzadeh, Mohammad Karimi, Ahmad Mousavi Shoushtari, Mehran Javanbakht
Summary: This study successfully fabricated and characterized the SPEEK nanocomposite of polydopamine coated multi-walled carbon nanotube (P@MWCNT), showing improved dimensional stability and enhanced proton conductivity. Through innovative approach based on interfacial energies, it was found that increasing the interfacial energy between P@MWCNTs and polymer chains contributes to the transfer of protons along the interface region of nanofiller and matrix.
Article
Materials Science, Multidisciplinary
Priyanka Rani, Rajender Singh Malik
Summary: In order to address electromagnetic pollution, researchers have developed an electromagnetic shielding material composed of polyetherimide and sulfonated poly(ether ether ketone). This material exhibits excellent electrical conductivity and shielding effectiveness.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Seyed Hesam-Aldin Samaei, Gholamreza Bakeri, Mohammad Soleimani Lashkenari
Summary: This research aimed to increase the proton conductivity of sulfonated poly (ether ether ketone) (SPEEK) based proton exchange membranes (PEMs). By incorporating polydopamine-coated halloysite nanotubes (HNT) and other additives, the proton conductivity of the membranes was significantly improved, and the modified PEMs showed good chemical stability. These modified membranes can serve as alternatives to the commercial Nafion membranes in fuel cells.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Tianrui Li, Guo Lin, Liang He, Yunqing Xia, Xiaoqian Xu, Yingfa Liu, Lifen Tong, Xiaobo Liu
Summary: In this paper, bisphenol A was introduced into the molecular chain by molecular design to improve the crystallization ability of PEN. Different structures of PEN copolymers were synthesized and studied for their crystallization ability, thermal and mechanical properties. The effects of hot-pressing conditions on the properties of hydroquinone/bisphenol A copolymerized PEN were investigated, and the best processing conditions were determined. This study provides guidance for the research of semi-crystalline PEN and offers a theoretical basis for its applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Vo Dinh Cong Tinh, Vu Dong Thuc, Dukjoon Kim
Summary: To facilitate the commercialization of proton exchange membrane fuel cells, the decomposition of the polymer electrolyte membrane needs to be addressed. A functional sulfonic acid group grafted onto poly(arylene ether sulfone) by sulfide linkages was synthesized to prevent degradation. Additionally, cerium oxide nanoparticles were prepared for radical scavenging. The layer-by-layer membrane containing cerium oxide showed lower voltage loss rate and maintained proton conductivity.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Electrochemistry
Xuan Chen, Qiang Ren, Jingmei Xu, Mengchi Ju, Lingxin Meng, Zhe Wang
Summary: This paper successfully prepared two types of metal-organic frameworks (MOFs) with proton conduction capability and added them into sulfonated poly (ether ketone sulfone) (C-SPAEKS) to fabricate proton exchange membranes (PEMs). The introduction of sulfonic acid groups and imidazole groups on the template of MOFs provided additional proton sources and proton transport sites, significantly improving the proton transport efficiency and structure-activity relationship.
ELECTROCHIMICA ACTA
(2023)
Article
Polymer Science
Wanru Zhang, Liang He, Ting Wang, Xiaobo Liu, Lifen Tong
Summary: A series of PENs with different molecular weights were synthesized and their effect on the performance of PEN and PEN-based FCCL were studied. The PENs showed excellent thermal properties and long service life. The tensile properties of PENs increased with increasing molecular weight, while water absorption decreased. However, the peel strength of FCCL showed an opposite trend to the tensile properties of PEN, with PEN-2 showing the highest peel strength.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
U. Anil Kumar, Rajendran Sakthivel, Asis Sethi, Baskaran Mohan Dass, Santoshkumar D. D. Bhat, Vishal M. Dhavale
Summary: In this study, the proton conductivity of sulfonated poly(ether ether ketone) (sPEEK) was enhanced by incorporating a hydrophilic Cu-pyromellitic acid complex (Cu-PMA) into the sPEEK matrix. The sPEEK/Cu-PMA composite membrane with an optimal Cu-PMA loading of 0.5 wt% exhibited an impressive proton conductivity of 0.162 S cm(-1), surpassing other composite membranes and the sPEEK membrane. The composite membrane also demonstrated good performance retention during cycling and showed promising results in a proton exchange membrane fuel cell (PEMFC).
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Polymer Science
Xiaohong He, Hongguo Shou, Xiaobo Liu, Kun Jia
Summary: In this study, silver nanoparticles were synthesized and successfully modified the crystallization behavior of PET-PEG elastomers, enhancing their mechanical properties. The results demonstrate the potential application of silver nanoparticles in the preparation of multifunctional polyester elastomers.
Article
Polymer Science
Pan Wang, Xidi Liu, Hai Liu, Xiaohong He, Dawei Zhang, Jiaqi Chen, Ying Li, Wei Feng, Kun Jia, Jing Lin, Kui Li, Xulin Yang
Summary: Polyarylene ether-based polymer with photoluminescence was further functionalized to be a thermal resistant, tough, and flexible optical material. The end-capped polymers exhibited strong aggregation-induced emission with high quantum yield of fluorescence. The molecular weights and processing methods significantly impacted the fluorescence properties of the polymers, showing potential applications in various optical fields.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Physical
Shuning Liu, Ling Tu, Chenchen Liu, Lifen Tong, Zhongxiang Bai, Guo Lin, Kun Jia, Xiaobo Liu
Summary: This study focuses on preparing high-temperature resistant composites by introducing nitrile-functionalized agents on the surface of multiwalled carbon nanotubes. The resulting composites exhibit excellent mechanical, thermal, and dielectric properties, making them suitable for energy storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Kun Jia, Yao Ji, Xiaohong He, Junni Xie, Pan Wang, Xiaobo Liu
Summary: A double hydrophilic block co-polyarylene ether nitriles (dhPEN) with carboxyl and sulfonate groups was synthesized and co-assembled with lanthanide Tb3+ to form Tb3+ coordinated dhPEN (TbdhPEN) micro/nano-structures. The TbdhPEN exhibited high adsorption capacity for Cr(VI) and selective detection at trace concentrations, making it suitable for environmental sample analysis.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Chenchen Liu, Shuning Liu, Lingling Wang, Zhongxiang Bai, Guo Lin, Xiaofang Feng, Kun Jia, Xiaobo Liu
Summary: This work presents the facile synthesis of PAE@Fe3O4 hybrid nanospheres using a reactive polymer as the structure-directing agent. The obtained hybrid nanospheres exhibit diverse electromagnetic loss pathways due to the metalligand bonding between Fe3O4 and the polymer. The optimized PAE@Fe3O4 hybrid nanospheres display enhanced reflection loss and effective absorption bandwidth, making them promising candidates for flexible electromagnetic radiation controlling devices.
Article
Polymer Science
Penglun Zheng, Rui Wang, Xiaoliang Peng, Jichang Sun, Huaiyin Liu, Junwei Li, Chuanbang Liu, Lan Jiang, Quanyi Liu, Yu Zhang
Summary: In this study, a multiple cross-linking reaction was carried out in epoxy resin (EPs) by introducing nitrile groups and the benzoxazine ring, followed by a simple heat treatment. The resulting halogen/phosphorus-free and environmentally friendly network not only suppresses the migration of the functional flame retardants from the substrate, but also shows significantly enhanced flame-retardant properties.
HIGH PERFORMANCE POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Du Gong, Dawei Zhang, Xiaoying Zhang, Xiaohong He, Yao Ji, Kun Jia
Summary: Emulsion confinement self-assembly technique has been utilized to synthesize polymeric microparticles with pendent nitrile and carboxyl groups. The encapsulation capacity of polyarylene ether (PAE-NC) was evaluated using hydrophobic fluorescent quantum dots (QD). The co-self-assembly of red-emitting QD and PAE-NC enables the phase transfer of hydrophobic QD into hydrophilic luminescent microparticles.
FRONTIERS IN CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Jichang Sun, Chuanbang Liu, Huaiyin Liu, Junwei Li, Penglun Zheng, Yun Zheng, Zhihong Liu
Summary: This review summarizes the recent advances in organic-inorganic composite solid electrolytes (CSE) with ordered architectures for solid-state lithium batteries. The study highlights the significant improvement in ionic conductivities achieved through the incorporation of ordered inorganic fillers in CSE. The review provides researchers with valuable insights for achieving ordered structures in CSE to enhance the performance of advanced solid-state lithium batteries.
Article
Polymer Science
Huaiyin Liu, Junwei Li, Jichang Sun, Haihan Zhao, Jing Wu, Yun Zheng, Penglun Zheng
Summary: An organic-inorganic composite flame retardant (HKDC) containing multi-element P/N/Si was successfully synthesized to improve the flame retardant properties of epoxy resins (EP). This flame retardant utilizes the synergistic effect of multiple elements to achieve excellent flame retardant effect with low addition amount in EP. It not only reduces the migration of molecules through the structure of inorganic substances, but also increases the compactness with the EP matrix.
HIGH PERFORMANCE POLYMERS
(2023)
Article
Polymer Science
Huaiyin Liu, Penglun Zheng, Junwei Li, Jichang Sun, Rui Wang, Haihan Zhao, Jing Wu, Yun Zheng, Quanyi Liu
Summary: An active P/N/Si flame retardant containing a double bond was synthesized to enhance the flame retardancy properties of epoxy resins. The addition of the flame retardant reduced pHRR and TSR by 51.7% and 29.8%, respectively, while inhibiting the release of toxic fuels and smoke.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Haihan Zhao, Junwei Li, Rui Wang, Huaiyin Liu, Jichang Sun, Jing Wu, Penglun Zheng
Summary: This study synthesized a novel interpenetrating polymer network structure by introducing double bonds into flame retardants based on crosslinking strategy, aiming to improve the flame retardancy of epoxy resins. The increased crosslink density improved the mechanical properties and fire retardancy of the EP thermosets.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Junwei Li, Penglun Zheng, Huaiyin Liu, Jichang Sun, Yawei Meng, Haihan Zhao, Jing Wu, Yun Zheng, Quanyi Liu
Summary: Flame retardant epoxy resin with improved fire resistance and microstructure has been developed by using Cu2+ and DOPO system, which effectively enhances the flame retardancy and tightness of the resin. The addition of flame retardant leads to well-defined fire resistance and improved physical properties of the resin.
Article
Polymer Science
Junwei Li, Quanyi Liu, Yumei Zhou, Yuming Cai, Kaikai Shi, Haihan Zhao, Yawei Meng, Penglun Zheng
Summary: A multicomponent flame retardant (Sp-ACDH) containing P/N/S was synthesized and applied to epoxy resin, which enhanced the flame retardancy of the resin. With the addition of 10 wt% Sp-ACDH, the epoxy composite achieved UL-94 V-0 rating and had an LOI of 32.7%. Moreover, Sp-ACDH effectively reduced the heat release rate of the epoxy resin. Characterization results using SEM, Raman spectroscopy, and TG-FTIR spectra confirmed the flame-retardant properties of Sp-ACDH in both gas and condensed phases.
HIGH PERFORMANCE POLYMERS
(2023)
Article
Polymer Science
Junwei Li, Qiuju Ma, Quanyi Liu, Penglun Zheng
Summary: A phosphorus-nitrogen synergistic flame retardant was synthesized, which enhanced the flame retardancy of epoxy composites through the cross-linking effect of nitrile groups and the introduction of flexible chain segments. The study also found that the addition of DPVHD improved the flexural properties of the epoxy resin matrix.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Junwei Li, Haihan Zhao, Huaiyin Liu, Jichang Sun, Jing Wu, Quanyi Liu, Yun Zheng, Penglun Zheng
Summary: The use of polymer materials is closely related to our manufacturing life, but their combustibility and toxic fumes limit their usage. Metal-based flame retardants can enhance the flame-retardant properties and smoke suppression performance of polymers. This study systematically presents the research progress and flame-retardant mechanism of flame-retardant polymers using flame retardants from different groups of metals.
