Article
Chemistry, Multidisciplinary
Guangtao Qian, Fengna Dai, Haiquan Chen, Mengxia Wang, Mengjie Hu, Chunhai Chen, Youhai Yu
Summary: A novel N-phenyl-poly(benzimidazole imide) was successfully synthesized, addressing the issues of high water-absorption and retaining superheat resistance. The resulting polymer had a high glass-transition temperature and increased optical transparency due to its loose molecular packing and noncoplanar structures.
Article
Chemistry, Multidisciplinary
Dandan Li, Chengyang Wang, Xiaoying Yan, Shengqi Ma, Ran Lu, Chunhai Chen, Guangtao Qian, Hongwei Zhou
Summary: In this study, the brittleness of poly(benzimidazole imide)s was effectively improved by incorporating N-phenyl groups, resulting in high thermal stability and low coefficient of thermal expansion. The influence of removing intermolecular hydrogen bonds on the properties of these materials was systematically analyzed.
Article
Polymer Science
Kristyna Janegova, Petr Sysel, Hana Kulhankova, Viacheslav A. Perfilov, Milan Bernauer, Vlastimil Fila
Summary: This study focuses on the properties of polyimides containing siloxane moieties in various advanced applications, such as separation membranes. The research found significant differences in water contact angle and gas transport properties among films with different compositions, with the membrane composition having a greater impact on gas transport properties than surface properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Chemical
Yuxuan Feng, Shuhui Chen, Kaisheng Hua, Hui Li, Dong Jiang, Lujie Sheng, Dan Zhao, Jizhong Ren
Summary: This study investigates the effect of oxygen content on the membrane structure and gas selectivity of polyimide membranes. By conducting a thermal oxidation process at high temperature, the researchers were able to enhance the hydrogen/methane selectivity of polybenzoxazole-co-imide (PBOCI) membranes, surpassing the existing highest standard.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Min Chen, Jiangzhou Luo, Honglei Ling, Xueping Zong, Song Xue
Summary: This study presents an effective way to construct polymer membranes with high gas separation performance and strong resistance to plasticization issue.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Lu Wang, Ying Li, Ping Zhang, Xianfu Chen, Pei Nian, Yibin Wei, Hongsheng Lu, Xuehong Gu, Xuerui Wang
Summary: A high-performance polymeric membrane for helium extraction from natural gas was reported, exhibiting excellent separation performance and anti-aging property.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Zihua Yu, Shaohua Wu, Chuncheng Li, Yaonan Xiao, Jiajian Liu, Bo Zhang
Summary: A series of poly(benzoxazole imide) (PBOI) copolymers were designed and prepared, integrating preformed benzoxazole structures into the polyimide backbone. The molecular and aggregate structures of PBOIs can be regulated by controlling the comonomer ratio, affecting their macroscopic properties. Compounding PBOIs with fluorinated graphene (FG) leads to breakthrough improvements in film performance.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Hojjat Toiserkani
Summary: This research focuses on the fabrication and evaluation of poly(ether-imide)/functionalized zinc oxide nanocomposites and systematically characterizes their structure, morphology, and thermal properties. The results demonstrate that the nanoparticles are uniformly dispersed at a nanometer scale in the polymer matrix, leading to improved thermal stability compared to the neat polymer.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2022)
Article
Polymer Science
Zhen Xu, Liu Gehui, Ke Cao, Dong Guo, Joel Serrano, Alan Esker, Guoliang Liu
Summary: A method has been developed to prepare thermally crosslinked PEI with improved solvent resistance and solution processability, showing that the glass transition temperature, storage modulus, and swelling ratio of the material correlate positively with crosslinking density.
Article
Chemistry, Multidisciplinary
Meng-Ge Huangfu, Deng-Xiong Shen, Xin-Xin Zhi, Yan Zhang, Yan-Jiang Jia, Yuan-Cheng An, Xin-Ying Wei, Jin-Gang Liu
Summary: The incorporation of benzoxazole units into fluorocontaining PIs molecular structures resulted in the fabrication of poly(imide-benzoxazole) (PIBO) nano-fibrous membranes with good dielectric properties.
Article
Polymer Science
Galina Polotskaya, Mikhail Goikhman, Irina Podeshvo, Nairi Loretsyan, Natalia Saprykina, Iosif Gofman, Nadezhda Tian, Roman Dubovenko, Alexandra Pulyalina
Summary: The study synthesized PQHI polymer and its Cu+ metal-polymer complex, and prepared thin-film membranes for pervaporation separation of benzene and isopropanol mixtures. Comprehensive studies showed that these polymers have good performance capabilities as membrane materials in terms of structure, physical and mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Qian Liu, Junjie Liu, Peiyu Jia, Tian Yu, Ning Qi, Wei Zhou, Nanwen Li, Zhiquan Chen
Summary: In this study, poly(benzoxazole-co-imide) membranes were synthesized through thermal rearrangement reaction. The free volume structure of the membranes was modified by incorporating different types and proportions of rearrangeable and non-rearrangeable diamines. The results showed that the free volume structure had a decisive effect on gas transport and selectivity, with high free volume leading to exceptional H-2/CH4 separation performance.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Lijinhong Huang, Bin Xiao, Lihong Liu, Wenhao Li, Xiaoguang Duan, Wanfu Huang, Chunyan Fan, Yu Dong, Shaomin Liu
Summary: In this study, three-dimensional porous polymers were successfully prepared using benzimidazole and benzoxazole via a one-pot synthesis. The materials exhibited high surface areas and pore volumes, making them suitable for the adsorption and removal of heavy rare earth ions.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Polymer Science
Mahipal Meena, Anjlina Kerketta, Manorama Tripathi, Prasun Roy, Josemon Jacob
Summary: Thermally stable, waterproof, hydrophilic, breathable poly(urethane-imide) (PUI) films were developed as a potential replacement for existing polyurethanes (PU) in waterproof breathable clothing. The PUI films showed higher waterproofness and breathability than PU films due to the presence of imide functionalities, as well as improved thermal stability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Mai Hattori, Miyu Nakamichi, Aika Yamaguchi, Chihiro Miyazaki, Goichiro Seo, Ryosuke Ohnuki, Shinya Yoshioka, Kaname Kanai
Summary: Metal poly(heptazine imide) (MPHI) has various optoelectronic functions by accommodating different metal ions, but the mechanisms responsible for its unique properties, such as high photo-catalytic activity, photochromism, and photoconduction, remain unknown. This study focuses on investigating the mechanisms of photochromism and photoconduction in potassium PHI (KPHI) by gradually replacing K+ with H+ to prepare samples with tunable K+ concentrations. The properties of these samples were thoroughly investigated through experiments and calculations.
CHEMISTRY OF MATERIALS
(2023)
Article
Polymer Science
Yongbing Zhuang, Ryoji Orita, Eisuke Fujiwara, Yu Zhang, Shinji Ando
Article
Polymer Science
Dajie Zhang, Jong Geun Seong, Won Hee Lee, Shinji Ando, Yinhua Wan, Young Moo Lee, Yongbing Zhuang
Article
Engineering, Chemical
Xiaofan Hu, Won Hee Lee, Jiayi Zhao, Joon Yong Bae, Ju Sung Kim, Zhen Wang, Jingling Yan, Yongbing Zhuang, Young Moo Lee
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Engineering, Chemical
Xiaofan Hu, Won Hee Lee, Jiayi Zhao, Ju Sung Kim, Zhen Wang, Jingling Yan, Yongbing Zhuang, Young Moo Lee
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Engineering, Chemical
Yu Zhang, Won Hee Lee, Jong Geun Seong, Joon Yong Bae, Yongbing Zhuang, Shichao Feng, Yinhua Wan, Young Moo Lee
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Multidisciplinary Sciences
Nanjun Chen, Ho Hyun Wang, Sun Pyo Kim, Hae Min Kim, Won Hee Lee, Chuan Hu, Joon Yong Bae, Eun Seob Sim, Yong-Chae Chung, Jue-Hyuk Jang, Sung Jong Yoo, Yongbing Zhuang, Young Moo Lee
Summary: The study presents a series of durable poly(fluorenyl aryl piperidinium) ionomers and membranes with high OH- conductivity and excellent mechanical properties for improved performance of alkaline fuel cells. Innovative design of poly(fluorenyl aryl piperidinium) copolymers is explored to extend their applications in anion exchange membrane fuel cells.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Cheng Yang, Ruopei Xu, Siyi Tang, Yongbing Zhuang, Longbo Luo, Xiangyang Liu
Summary: The study demonstrates that the chain rigidity of PPTA is more significant, resulting in weaker H-bonds and more free H-bonding sites. Introducing benzimidazole moiety into PPTA leads to more H-bonds, but high rotational energy barrier of the benzimidazole ring hinders the formation of strong H-bonds.
ADVANCED THEORY AND SIMULATIONS
(2021)
Article
Chemistry, Physical
Xin Li, Yongbing Zhuang, Qichao Ran, Xiangyang Liu
Summary: This article reports that Z/E-2NH(2)-TPE molecules primarily undergo oxidative evolution rather than recognized isomerization. The oxide is separated and its structure is deciphered using single crystal X-ray diffraction. The oxidative evolution accompanying the rearrangement is explained through quantum theoretical calculations.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Polymer Science
Yu Zhang, Won Hee Lee, Jong Geun Seong, Junming Dai, Shichao Feng, Yinhua Wan, Young Moo Lee, Yongbing Zhuang
Summary: A series of Troger's Base (TB)-based polyimides (PI-TBs) with different physical and gas transport properties were synthesized by altering the isomeric monomers. The solubility, microporosity, chain packing, mechanical performance, thermal stability, and gas transport properties of the PI-TBs were investigated. The choice of different isomeric dianhydrides and diamines had a significant impact on the solubility, mechanical properties, and gas permeability of the resulting polyimides. The chemical structure of the isomeric dianhydrides also influenced the chain packing and gas separation performance of the PI-TBs.
Article
Engineering, Chemical
Shiqian Li, Benkun Qi, Jianquan Luo, Yongbing Zhuang, Yinhua Wan
Summary: The study focused on the performance of four metal-organic frameworks (MOFs) in adsorbing furfural and phenolic inhibitors, with MIL-140C demonstrating the best adsorption capability. The adsorption process on MIL-140C was ultrafast, fitting well with a pseudosecond-order model and Langmuir isotherm. The adsorption was found to be exothermic and spontaneous, with great promise in removing inhibitors from lignocellulosic hydrolysate.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Materials Science, Multidisciplinary
Junming Dai, Yu Zhang, Gang Wang, Yongbing Zhuang
Summary: High-temperature proton exchange membrane (HT-PEM) fuel cells have more advantages than low-temperature PEM fuel cells, with high conductivity, low humidity operation conditions, adequate mechanical properties, and competitive costs. Currently, phosphoric acid-doped polybenzimidazole is the most successful polymer material for application in HT-PEMs.
SCIENCE CHINA-MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Benyuan Huang, Yang Liu, Jiawei Duan, Xin Li, Yulong Li, Rui Qin, Xu Wang, Yongbing Zhuang, Xiangyang Liu
Summary: This study develops a fluorination strategy with an atomic fluorination mechanism to modify graphene, which enables the preparation of graphene with a higher fluorination degree and relatively homogeneous fluorine distribution. The resulting fluorinated graphene possesses higher thermal stability, thermal conductivity, and electrical insulation, demonstrating its potential applications in thermal conduction and electrical insulation for microelectronics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Chemical
Keying Wang, Yuling Ren, Jianquan Luo, Yongbing Zhuang, Shichao Feng, Yinhua Wan
Summary: In this study, a silver-loaded facilitated transport membrane was developed to address the issue of carrier Ag+ instability, and its influencing factors were systematically investigated. The results demonstrate that the silver-loaded membrane exhibits excellent stability and separation performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Polymer Science
Yongjiu Li, Qianqian Liang, Ruopei Xu, Xin Li, Dajie Zhang, Yongbing Zhuang, Longbo Luo, Junwei Lv, Wen Zhai, Xiangyang Liu
Summary: In this study, a new aromatic heterocyclic diamine monomer was synthesized and used to prepare polyamide films. The films with coplanar structure showed high breakdown strength and good retention rate of strength at elevated temperature. The films also exhibited high tensile strength, high glass transition temperature, and excellent thermal stability.
Article
Chemistry, Multidisciplinary
Xin Li, Linsen Zhou, Zheng Cheng, Qichao Ran, Xu Wang, Yongbing Zhuang, Longbo Luo, Xiangyang Liu
Summary: The introduction of chlorine atoms in the Z/E-2Cl-2NH(2)-TPE molecules successfully inhibited tautomerization, enhancing intermolecular interaction and providing a good template for designing advanced materials.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Polymer Science
Paige A. Shaw, Maxime Klausen, Mark Bradley
Summary: A light-responsive polymer capable of controlled release of camptothecin and generation of reactive oxygen species (ROS) was developed, which exhibited high cancer cell killing activity through both camptothecin release and ROS generation.
Article
Polymer Science
Donghui Zhang, Shiqi Liu, Zhihao Cai, Weizhe Luo, Guojian Liu, Runhui Liu
Summary: A straightforward and efficient method for synthesizing NPC monomers has been developed in this study, which enhances the availability of NPC monomers and facilitates the synthesis of polypeptides.