High Performance Polymers最新文献_第2页

The characteristics of high temperature polymer electrolyte membranes for fuel cell based on 2-pyridene based polybenzimidazole blended with poly(vinyl-phosphonic acid) 基于 2-吡啶基聚苯并咪唑与聚（乙烯基膦酸）共混的燃料电池高温聚合物电解质膜的特性

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-05-11 DOI: 10.1177/09540083241253165

Yashesh J Rathwa, Sanjay K Parmar, Navin P Chikhaliya

{"title":"The characteristics of high temperature polymer electrolyte membranes for fuel cell based on 2-pyridene based polybenzimidazole blended with poly(vinyl-phosphonic acid)","authors":"Yashesh J Rathwa, Sanjay K Parmar, Navin P Chikhaliya","doi":"10.1177/09540083241253165","DOIUrl":"https://doi.org/10.1177/09540083241253165","url":null,"abstract":"The present study has focused on exploring new 2-pyridine-bridge-based polybenzimidazole (2-Py-PBIs) based materials for various energy-related uses in proton exchange membrane fuel cells (PEMFC). An electrochemical device, which transforms chemical energy into electrical energy, is known as fuel cell. Using solution polymerization with polyphosphoric acid as a solvent, a series of 2-Py-PBIs were synthesised from the 4,4'-([2,4′-bipyridine]-2′,6′-diyl)bis (benzene-1,2-diamine). 2-Pyridine bridge Polybenzimidazoles are cross-linked with poly (vinylphosphonic acid), which helps us to improve membrane properties like mechanical properties and proton conductivities. FT-IR was used to characterize chemical structure, Ubbelohde viscometer was employed to determine the inherent viscosity. Additionally investigated were the oxidative stability, swelling ratio, ion exchange capability, and water uptake for 2-Py-PBIs. Thermogravimetric analysis is used to evaluate thermal stability. The obtained 2-Py-PBIs membranes were thermally stable and mechanically strong when compared with conventional polybenzimidazole-based membranes. The 2-Py-PBIs:PVPA membranes showed proton conductivity between 0.10 µS/m to 4.65 µS/m.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140926038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyimides with ultra-low coefficient of thermal expansion derived from diamine containing bisbenzimidazole and bisamide 由含双苯并咪唑和双酰胺的二胺衍生的超低热膨胀系数聚酰亚胺

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-04-16 DOI: 10.1177/09540083241247490

Chuyi Fang, Ke Xu, Tao Li, Guangtao Qian, Dandan Li, Chunhai Chen

{"title":"Polyimides with ultra-low coefficient of thermal expansion derived from diamine containing bisbenzimidazole and bisamide","authors":"Chuyi Fang, Ke Xu, Tao Li, Guangtao Qian, Dandan Li, Chunhai Chen","doi":"10.1177/09540083241247490","DOIUrl":"https://doi.org/10.1177/09540083241247490","url":null,"abstract":"To provide polyimide (PI) with high heat resistance and ultra-low coefficient of thermal expansion (CTE) for use in flexible display substrates, a novel diamine with bisbenzimidazole and bisamide groups, namely N,N'-(1H,1'H-[5,5'-bibenzo[d]imidazole]-2,2'-diyl)bis(4-aminobenzamide) (BZBA), was designed and successfully synthesized. Several poly(benzimidazole-amide-imide) (PBIAI) films were prepared by thermal imidization with 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA), 4,4'-oxydiphthalic anhydride (ODPA), 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA), and 4,4'-(hexafluoroisopropylindene)-diphthalic anhydride (6FDA), respectively. Among them, BZBA-BPDA has a high glass transition temperatures ( Tg = 345 °C) while achieving an extremely low coefficients of thermal expansion (CTE = 1.9 ppm K−1), meeting the processing requirements of polymer flexible substrates in OLED devices. The effects of different dianhydrides on the performance of PBIAIs were compared, providing a meaningful reference for further adjusting the PI molecular structure to meet specific requirements for industrial polymer films.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140613240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of the aniline concentration on the morphology and property of polyaniline nanotubes and their polymerization mechanism 苯胺浓度对聚苯胺纳米管形态和性能及其聚合机理的影响

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-04-16 DOI: 10.1177/09540083241246499

Shengqing Jiao, Yanmin Wang, Yuansong Xiao, Yongqin Han, Tingxi Li, Yong Ma

{"title":"Influence of the aniline concentration on the morphology and property of polyaniline nanotubes and their polymerization mechanism","authors":"Shengqing Jiao, Yanmin Wang, Yuansong Xiao, Yongqin Han, Tingxi Li, Yong Ma","doi":"10.1177/09540083241246499","DOIUrl":"https://doi.org/10.1177/09540083241246499","url":null,"abstract":"Polyaniline is a kind of polymer material with excellent electrochemical performance, and it stands out among a number of conductive polymer materials owing to its low cost, easy availability of raw materials, and excellent physical and chemical properties. However, the poor processability of polyaniline impedes its broad application. Preparing nanosized structure and introducing big molecular organic acids as dopant are practical strategies to solve this problem. Here using ammonium persulfate as oxidant, sodium dodecyl sulfate as surfactant, and 3,5-dinitrobenzoic acid as doping acid, polyaniline nanotubes were successfully prepared via emulsion polymerization method and characterized by various measurements. The influence of aniline concentration on the morphology and property of the product was explored. The polymerization mechanism of polyaniline nanotubes was discussed in detail based on the analysis of the microscopic morphology. As the concentration of aniline monomer increases, the position of the characteristic absorption peak in the infrared spectrum of the polyaniline main chain remains almost unchanged, but the ratio of benzene to quinone gradually increases. Along with the increasing aniline concentration, the crystallinity of polyaniline gradually decreases from 56.21% to 40.37%. In addition, the optimal conductivity is 2.05×10−2 S/cm when the concentration of aniline monomer is 0.5 mol/L.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140613242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design, synthesis and characterization of high refractive index aromatic polyesters containing fluorene and thioether groups 含芴和硫醚基团的高折射率芳香族聚酯的设计、合成和表征

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-04-12 DOI: 10.1177/09540083241246766

Zihao Wu, Jian Wang, Jingwei Jiang, Jinhua Lei, Heran Nie, Guangyuan Zhou, Qiliang Yuan

引用次数: 0

High-performance quinoxaline-containing phthalonitrile resin: Synthesis, curing kinetics, and properties 高性能含喹喔啉的邻苯二腈树脂：合成、固化动力学和性能

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-04-03 DOI: 10.1177/09540083241244466

Dianqiu Jia, Han Zhao, Jianxin Rong, Xinggang Chen, Zhiyi Jia, Dengke Li, Xiaoyan Yu, Qingxin Zhang

引用次数: 0

High-temperature resistance quartz-fabric/phthalonitrile composite with excellent waving-transmitting performance 耐高温石英织物/邻苯二腈复合材料，具有优异的波纹传输性能

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-04-03 DOI: 10.1177/09540083241244536

Yuane Wu, Yifan Huang, Xinyue Shi, Xiaohan Sha, Song Li

{"title":"High-temperature resistance quartz-fabric/phthalonitrile composite with excellent waving-transmitting performance","authors":"Yuane Wu, Yifan Huang, Xinyue Shi, Xiaohan Sha, Song Li","doi":"10.1177/09540083241244536","DOIUrl":"https://doi.org/10.1177/09540083241244536","url":null,"abstract":"This study reports the fabrication of quartz fabric reinforced phthalonitrile composite possessing good thermal and wave-transmitting properties. Phthalonitrile-terminated oligomer PN-SF curing behavior was investigated using differential scanning calorimetry (DSC) and dynamic rheological analysis (DRA), revealing a good processability pre-curing temperature of only 175°C. The thermoset exhibited the 5% loss temperature about 462°C, and after the temperature rising to 400°C and 400°C/2 h aging, the weight loss was only 10%, indicating that the resulting thermoset possessed outstanding thermal property. Moreover, the resulting thermosets possessed extremely high glass transition temperature (Tg) about 420°C. Besides, the quartz fabric/phthalonitrile composite possessed extremely excellent mechaical properties. Importantly, the transmission efficiencies can reach 87% at a certain frequency at the incident angle of 0°∼35°, indicating its well waving-transmitting performance. Meanwhile, the composite exhibited stable and relatively low dielectric constant and dielectric loss at the range of 12∼18 GHz. This study can serve as a basis for rapid evaluation of the high heat resistance and waving-transmitting phthalonitrile resin-based composite in various application environments.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140582691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and properties of a bismaleimide resin modified with a propargyl compound for electron beam irradiation curing 用于电子束辐照固化的丙炔化合物改性双马来酰亚胺树脂的制备及其性能

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-03-19 DOI: 10.1177/09540083241240148

Yuhao Zhang, Linxiang Wang, Qiaolong Yuan, Qing Zheng, Liqiang Wan, Farong Huang

{"title":"Preparation and properties of a bismaleimide resin modified with a propargyl compound for electron beam irradiation curing","authors":"Yuhao Zhang, Linxiang Wang, Qiaolong Yuan, Qing Zheng, Liqiang Wan, Farong Huang","doi":"10.1177/09540083241240148","DOIUrl":"https://doi.org/10.1177/09540083241240148","url":null,"abstract":"N, N, N′, N′ -Tetrapropargyl- p, p′-diaminodiphenylmethane (TPDDM) is synthesized and used to blended with 4,4′-bismaleimide diphenylmethane (BDM) as propargyl compound in a molten state to obtain a TPDDM modified bismaleimide (BTP) resin. The BTP resins are cured under electron-beam (EB) irradiation as well as heat. The cure degree and reactions of BTP resins are studied. The thermal stability and mechanical properties of the cured BTP resins are further investigated. The results show that the BTP resins can be cured under EB irradiation and have over 82% degree of cure, which increases with the increase of EB irradiation dose. The cure reactions of EB-cured BTP resin are similar to that of heat-cured BTP resin. The temperature at 5% weight loss ( Td5) and mechanical properties of the cured BTP resins are close analogies between EB and heat cure processes although the cure degrees of EB-cured BTP resins are lower. The glass transition temperature ( Tg) and flexural modulus of the EB-cured BTP resin are higher than that of the heat-cured BTP resin. The Tg of the EB-cured BTP resin can reach over 385°C. The TPDDM-modified BDM is a candidate bismaleimide resin for the EB irradiation curing process in advanced manufacturing technology.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving UV aging resistance by loading PDA on the surface of PBO fibers via Fe (III) coordination 通过铁（III）配位在 PBO 纤维表面载入 PDA 提高抗紫外线老化性能

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-03-16 DOI: 10.1177/09540083241240163

Weihua Zhong, Jinwang Bai, Yunjun Luo, Dianbo Zhang, Chen Liang, Xiangdong Chen

{"title":"Improving UV aging resistance by loading PDA on the surface of PBO fibers via Fe (III) coordination","authors":"Weihua Zhong, Jinwang Bai, Yunjun Luo, Dianbo Zhang, Chen Liang, Xiangdong Chen","doi":"10.1177/09540083241240163","DOIUrl":"https://doi.org/10.1177/09540083241240163","url":null,"abstract":"Poly(p-phenylene-2,6-benzobisoxazole) (PBO) fiber is currently one of the best-performing organic fibers; however, its low UV aging resistance limits its use. To improve the UV aging performance of PBO fibers, a novel PBO-Fe-PDA fiber was created by depositing a biomimetic structure of polydopamine (PDA) on the surface of PBO fibers with the transition metal ion Fe3+ as the active center. The surface morphology and elemental composition of PBO-Fe-PDA fibers were investigated. It was revealed that Fe3+ formed a coordination bond structure with the oxazole ring, and PDA was successfully loaded onto the surface of PBO-Fe fibers. After UV aging, the crystallinity and crystallographic orientation of PBO fibers significantly decrease, microcrystals inside the fibers slip, and the size of microvoids in the fibers rises. As a result, the strength of PBO fibers was significantly decreased after UV aging. The anti-UV aging capacity of PBO-Fe-PDA fibers, on the other hand, has been enhanced, as evidenced by a slight drop in crystallinity and crystallographic orientation and a significant decrease in the size growth of internal microvoids in the fibers after UV aging. The tensile strength retention of PBO-Fe-PDA fibers after UV aging increased by 93.13% when compared to PBO fibers without altering the fibers’ initial strength. The testing results show that this surface modification method is simple to employ and extends the service life of PBO fibers significantly.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140153388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hexagonal boron nitride nanosheets: Fabrication, thermal properties and application in polymers 六方氮化硼纳米片：聚合物的制造、热性能和应用

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-03-11 DOI: 10.1177/09540083241238774

Wenchao Zhang, Yuan Liang, Dong Yue, Yu Feng

{"title":"Hexagonal boron nitride nanosheets: Fabrication, thermal properties and application in polymers","authors":"Wenchao Zhang, Yuan Liang, Dong Yue, Yu Feng","doi":"10.1177/09540083241238774","DOIUrl":"https://doi.org/10.1177/09540083241238774","url":null,"abstract":"Traditional thermally conductive materials are gradually losing their advantages as the electronics industry develops rapidly. Polymers are in urgent need of a material with high thermal conductivity, stable structure, good mechanical properties and oxidation resistance, which makes hexagonal boron nitride (h-BN) an excellent heat transfer filler for polymer composites. Boron nitride nanosheets (BNNS) are monolayers of hexagonal boron nitride, and theoretical studies have shown that BNNS have a higher thermal conductivity than h-BN (up to 400 Wm−1K−1, in-plane). This paper provides a comprehensive review of various methods for preparing BNNS, including mechanical exfoliation, liquid phase sonication exfoliation and chemical vapor deposition (CVD). In addition, various factors affecting the thermal conductivity of BNNS, including grain boundary, grain size and defects, are also discussed. Then, the influence of BNNS as filler on the thermal conductivity of the polymer was further discussed. Finally, this paper summarizes the existing BNNS applications and lists the application scenarios of BNNS in various fields. The purpose of this review is to summarize the previous work and put forward the prospect and future development direction of preparing high thermal conductivity BNNS-included polymer composites, so as to stimulate the research and improvement of new preparation methods for BNNS and promote its practical application as heat transfer materials.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140105867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and properties of novel poly(ester-amide-imide)s containing pendant phthalimide substituent 含有邻苯二甲酰亚胺取代基的新型聚（酯-酰胺-酰亚胺）的合成及其特性

IF 2.1 4区化学

High Performance Polymers Pub Date : 2024-03-08 DOI: 10.1177/09540083241238769

Yaqing Wen, Ge Zhu, Jie Li, Xingzhong Fang, Guofei Chen

{"title":"Synthesis and properties of novel poly(ester-amide-imide)s containing pendant phthalimide substituent","authors":"Yaqing Wen, Ge Zhu, Jie Li, Xingzhong Fang, Guofei Chen","doi":"10.1177/09540083241238769","DOIUrl":"https://doi.org/10.1177/09540083241238769","url":null,"abstract":"Two series of novel poly(ester-amide-imide)s (PEsAIs) with pendant phthalimide side group were synthesized by copolymerization of phthalimide-hydroquinone bis(trimellitate anhydride) (PI-TAHQ), p-phthaloyl chloride (TPC) and other fluorinated monomers using the two-step method. These PEsAIs had glass transition temperatures ( Tgs) in the range of 228 °C–296°C and coefficients of thermal expansion (CTEs) of 18–55 ppm·K−1. These films had good mechanical properties with tensile modulus of 3.7–5.7 GPa, tensile strengths of 92–153 MPa and elongations at break of 2.2%–8.3%. All films displayed good transparency with transmittances at 400 nm (T400nm) of 43%–79% and transmittances at 850 nm (T850nm) exceeding 89%, and these PEsAIs were amorphous. Especially, PEsAI-d-60 presented the best comprehensive performance with Tg of 296°C, low CTE of 18 ppm·K−1 and high transmittance (T400nm of 79%, T850nm of 91%), which exhibited the potential of this novel poly(ester-amide-imide) containing pendant phthalimide substituent in optical transparent materials.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140073616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0