High Performance Polymers最新文献

{"title":"Design and characterization of novel organometallic benzoxazine monomer with aluminum incorporation","authors":"Abdelmalek Habes, Oussama Mehelli, Mehdi Derradji, Slimane Abdous, M’hamed El Hadi Timtaoucine, Fouad Benaliouche, Yahia Khababa, Fatima Benchamma","doi":"10.1177/09540083251403199","DOIUrl":"https://doi.org/10.1177/09540083251403199","url":null,"abstract":"In this study, a new organometallic benzoxazine monomer (BA-Al) was synthesized by incorporating an aluminum (Al) atom into the structure of bisphenol A (BPA) to obtain the Al-BPA molecule. The BA-Al monomer was then synthesized through a one-step Mannich reaction. The molecular structure of Al-BPA was confirmed by proton nuclear magnetic resonance ( 1 H NMR) and Fourier transform infrared spectroscopy (FTIR), revealing new peaks in the 1 H NMR spectrum due to the formation of Al-O bonds. The FTIR spectra also showed the characteristic Al-O vibration bands. For the BA-Al monomer FTIR analysis confirmed the presence of benzoxazine rings with characteristic bands. Additionally, peaks were associated with Al-O bonds. 1 H NMR analysis further confirmed the BA-Al structure, providing evidence for the presence of the oxazine ring. DSC analysis showed that BA-Al cures at a lower temperature compared to BA-a, likely due to the influence of aluminum. The TGA analysis of P(BA-Al) indicated significant degradation, while P(BA-a) starts decomposing at a higher temperature. Dynamic mechanical analysis (DMA) analysis revealed that P(BA-Al) has a lower storage modulus and glass transition temperature compared to P(BA-a). Monotonic tensile tests showed that both P(BA-a) and P(BA-Al) exhibit similar tensile strength and elongation trends at varying strain rates, but P(BA-a) consistently shows slightly higher ductility. Solubility tests indicated that both BA-a and BA-Al monomers exhibit good solubility in polar aprotic solvents, while the corresponding polymers show reduced solubility, with P(BA-Al) being more soluble in DMF and DMSO. Electrical conductivity measurements showed that Al-BPA has a conductivity of 89.92 S/m, BA-Al has a conductivity of 67.98 S/m, while BA-a exhibited negligible conductivity. This suggests that aluminum content plays a crucial role in enhancing electrical conductivity. The synthesized BA-Al monomer demonstrates promising properties for specialized applications, particularly in the field of electromagnetic protection.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"38 3","pages":"219-233"},"PeriodicalIF":0.0,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901950","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}

{"title":"Preparation and properties of ultra-lightweight, low-drying-shrinkage nano-aerogel for thermal insulation","authors":"Dehua Pan, Yue Yu, Ziyang Zhou, Bing Xu, Jie Hu, Guozhi Fan","doi":"10.1177/09540083251399843","DOIUrl":"https://doi.org/10.1177/09540083251399843","url":null,"abstract":"Aerogels are renowned for their ultra-low density and exceptional thermal insulation. However, high drying shrinkage during preparation often leads to pore collapse and inadequate mechanical strength, severely limiting their aerospace applications. This work innovatively proposes a molecular bonding engineering strategy by introducing trace-aminated glass fiber (GF-NH 2 ) into a polyimide (PI) matrix. This approach leverages strong hydrogen bonding between the –NH 2 groups on the fiber and the electronegative N and O atoms in PI, creating robust reinforcement nodes. Combined with supercritical drying, this technique yielded a high-performance nanocomposite aerogel. The results demonstrate a dramatically reduced drying shrinkage of only 3.2% (a 57% reduction compared to PI aerogel), while retaining an ultra-low density of 0.049 g/cm 3 and a predominant pore size distribution of 30-60 nm. Remarkably, the composite achieves a compressive strength of 2.79 MPa and a modulus of 19.34 MPa. Its thermal diffusivity remains impressively low at 0.158 mm 2 /s, attributable to the Knudsen effect, and its thermal decomposition temperature (Td5%) exceeds 548°C. Infrared thermography confirmed that its thermal insulation performance substantially surpasses that of commercial silica aerogel (CSA). This strategy, leveraging the synergy of molecular bonding and supercritical drying, provides an excellent solution for developing aerospace thermal protection materials with high integral forming capability.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"38 3","pages":"208-218"},"PeriodicalIF":0.0,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889257","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}

{"title":"Porous amino-functionalized silica/polyimide composites via in-situ polymerization: Dielectric, mechanical, and water resistance enhancement","authors":"X. L. Xu, Ming Zeng, Diao Li, Han Wu, Yupei Yang, Ya Peng","doi":"10.1177/09540083251393498","DOIUrl":"https://doi.org/10.1177/09540083251393498","url":null,"abstract":"In order to meet the needs of modern communication technology, polyimide films with low dielectric constant and excellent comprehensive properties need to be prepared. In this study, fluorinated polyimide (SiFPI) and ether-containing polyimide (SiBPI) were synthesized via siloxane modification. On this basis, amino-functionalized porous silica particles were used as reinforcing fillers. Porous polyimide composite films (SiFPI/SiO 2 and SiBPI/SiO 2 ) were prepared by incorporating silica particles into the polyimide matrix via in-situ polymerization. The effects of silica content on the dielectric, mechanical, thermal, and water resistance properties of the composite films were systematically investigated and discussed. The results showed that at the silica content of 6 wt%, the dielectric constant of the SiFPI/SiO 2 composite decreased from 2.90 to 2.33 at 1 MHz, while that of the SiBPI/SiO 2 composite decreased from 2.92 to 2.37. Both composite films also exhibited high mechanical performance, with the tensile strength of the SiFPI/SiO 2 and SiBPI/SiO 2 composites reaching 136.2 MPa and 111.3 MPa, respectively. With the silica content increasing, both composite films exhibited a notable reduction in water absorption, which remained below 0.95%. Moreover, the composite films maintained comparable thermal stability to that of the pure film.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"38 3","pages":"194-207"},"PeriodicalIF":0.0,"publicationDate":"2025-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884736","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}

{"title":"Synthesis of efficient fire resistant additive and its effect on transparent and mechanical properties","authors":"Xiao Han, Zhe Gao, Zipeng Wang, Ruidong Zheng, Rui Chen, Feng Li","doi":"10.1177/09540083251380699","DOIUrl":"https://doi.org/10.1177/09540083251380699","url":null,"abstract":"An effective nitrogen-phosphorus synergetic flame-retardant additive was designed with nitrogen-rich 3,5-Diamino-1,2,4-triazole and DOPO. With the help of CCl 4 , CH 2 Cl 2 and triethylamine, target product diamine-phosphaferrocene-oxide (DD) was successfully synthesized. Equipped with DD of 0.92 g, epoxy resin mould of 25 g succeeded in vertical combustion test with rating of UL-94 V-0. In respect of limiting oxygen index, the value of mould was improved to 32.5%. The introduction of DD also had a significant impact on other parameters during the combustion of EP. For instance, peak of heat release rate of EP/3.5%DD mould was 746 kW/m 2 , which was 70.2% of EP mould without flame retardants. Total heat release of EP/3.5%DD mould was also dramatically decreased. All these details demonstrated that DD performed effectively in test of fire resistance. Besides, mechanical strength of EP mould was also improved by DD, of which izod iMPact strength of EP/3.5%DD was dramatically increased to 33 kJm -2 . Meanwhile, tensile strength and flexural strength of EP/3.5% DD was 99 MPa and 112 MPa, which was 119.2% and 128.7% of EP mould, respectively. In the end, SEM, IR, XPS and Raman was utilized to study the flame-retardant mode of DD.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"38 2","pages":"124-136"},"PeriodicalIF":0.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147912437","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}

{"title":"Manganese or copper alginate as catalytic charring agent for synergistic intumescent flame-retardant epoxy resins","authors":"Xiaoqian Zhang, Quan Neng, Jun Zhao, Ping Qiu, Sun Chunfeng, Chu Tingxiang, Wang Zhixiang, Tang Ligang","doi":"10.1177/09540083251383033","DOIUrl":"https://doi.org/10.1177/09540083251383033","url":null,"abstract":"In this study, two biomass-derived alginates (Copper alginate (Cu-A) and Manganese alginate (Mn-A)) were selected as high-quality carbon sources. They were respectively compounded with ammonium polyphosphate (APP) to form a synergistic intumescent flame retardant system for improving the flame retardancy of epoxy resin (EP). The flame retardancy and thermal stability of the composites were systematically investigated using limiting oxygen index (LOI), vertical burning test (UL-94), cone calorimetry (CCT), and thermogravimetric analysis (TGA). The results showed that the EP polymers both successfully passed the UL-94 V-0 rating when 0.05 wt% Cu-A/13.95 wt% APP or 0.10 wt% Mn-A/13.90 wt% APP was added, with the LOI values increased to 28.3% and 28.4%, respectively. TGA analysis showed that the composite system containing Cu-A or Mn-A possessed excellent thermal stability and exhibited a high residual char yield at the high-temperature stage. CCT results further demonstrated that the introduction of Cu-A or Mn-A effectively reduced the THR and PHRR values of the polymer, while significantly lowering the emissions of CO, CO 2 , and TSP. In addition, the char layer formed after combustion had a high degree of integrity and densification. Its inner and outer surfaces were smooth and continuous, and the degree of graphitization was significantly enhanced. Overall, the synergistic effect of Cu-A or Mn-A significantly improved the flame retardancy of EP/APP composites.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"38 2","pages":"110-123"},"PeriodicalIF":0.0,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903787","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}

{"title":"Novel transparent poly(arylene ether nitrile) with low dielectric constant: Synthesis and characterization","authors":"Shajie Luo, Jun Zhou, Jiale Wang, Yuan Wang, Junyu Dai, Yu Xiao, Yu Fan, Meilian Zhao","doi":"10.1177/09540083251364504","DOIUrl":"https://doi.org/10.1177/09540083251364504","url":null,"abstract":"The novel poly (arylene ether nitrile) copolymers P-HAD and P-PAD containing pendant aliphatic ring and -CF 3 group were synthesized by 4, 4′-cyclohexane-1, 1′-diyldiphenol (CHDP) or 4, 4′-cyclopentane-1, 1′-diyldiphenol (CPDP), 4, 4′-(hexafluoroisopropylidene) diphenol and 2, 6-dichlorobenzonitrile (DCBN) through nucleophilic polycondensation using NMP as the solvent in the work. The copolymers owned the inherent viscosities of 0.269-0.868 dL g -1 . They exhibited good thermal property, the glass transition temperatures (T g ) were 169.3-173.2°C, the weight-loss temperatures (T 5% ) were 464.2-470.2°C, and the heat resistance indexs (HRI) were 238.6-248.6°C. The copolymers’ films had good tensile strengths of 62.9-75.1 MPa. Because of the introduction of -CF 3 unit, the solubility, dielectric property and optical property were improved well. The copolymers could be dissolved in some solutions at room temperature, such as NMP, DMF, CH 2 Cl 2 and CHCl 3 , they can be processed by solution method. They had good dielectric property, the dielectric constants were 4.3-4.6 at about 1000 KHz. Additionally, the optical transmittance of these two copolymers were 75.2-76.3% at 450 nm, which have potential to be applied as the heat-resistant optical films in the 5G area or electronic field.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"38 1","pages":"38-47"},"PeriodicalIF":0.0,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://journals.sagepub.com/doi/pdf/10.1177/09540083251364504","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147898110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A hydrogen bonding strategy for enhancing thermal and mechanical properties in high-performance poly(imino arylene ether nitrile)","authors":"Yanjun Fu, Wei Zhuo, Wei Wang, Ying Huang, Yang Li, Guanjun Chang, Tengning Ma","doi":"10.1177/09540083251358872","DOIUrl":"https://doi.org/10.1177/09540083251358872","url":null,"abstract":"Developing high-performance materials with stability in extreme environments remains a key challenge in materials science. In this work, a novel polymer, poly(imino arylene ether nitrile) (PIEEN), was successfully synthesized through a nucleophilic substitution reaction. The incorporation of imino and nitrile groups into the backbone facilitated the formation of robust intermolecular hydrogen bonds within the polymer matrix, significantly enhancing its thermal properties, as evidenced by a glass transition temperature (T g ) of 206°C and a decomposition temperature (T 5% ) of 410°C. Additionally, the reversible dissociation and reformation of hydrogen bonds under stress contributed to remarkable mechanical performance, achieving a tensile strength of 135 MPa and an elongation at a break of 31%. This dual enhancement of strength and toughness represents a significant breakthrough in addressing the longstanding trade-off between rigidity and toughness in rigid polymers. The results provide a promising pathway for designing high-performance polymeric materials.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"37 8-9","pages":"501-509"},"PeriodicalIF":0.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147907662","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}

{"title":"Bifunctionalized NH ₂ -UiO-66-CF ₃ mixed matrix membranes for gas separation","authors":"Zhiqing Liang, Zhongying Liu, Xiuyuan Wei, Hui Wu, Chanjuan Liu, Xiaohua Huang","doi":"10.1177/09540083251358884","DOIUrl":"https://doi.org/10.1177/09540083251358884","url":null,"abstract":"Bifunctionalized NH 2 -UiO-66-CF 3 nanofillers were successfully prepared by grafting - CF 3 on NH 2 -UiO-66 via aldehyde-amine condensation reaction and applied to the preparation of 6FDA-ODA/NH 2 -UiO-66-CF 3 mixed matrix membranes (MMMs). The successful introduction of -NH 2 and -CF 3 groups was verified by FT-IR, XRD, and XPS characterization, and the integrity of the crystal structure was ensured. Due to the presence of hydrogen bonding, NH 2 -UiO-66-CF 3 showed good interfacial compatibility with the polymer matrix. Due to the introduction of the - CF 3 group, the MMMs exhibited excellent thermal stability ( T 10% > 500°C, T g = 300°C–305°C), hydrophobicity (contact angle of 92.96–97.71), and mechanical properties (tensile strength of 74–85 MPa). The gas separation performance tests showed that the MMMs exhibited significantly improved gas permeability and selectivity compared to the pure 6FDA-ODA membranes, which was attributed to the fact that the -NH 2 and -CF 3 groups provided more adsorption sites for gases. In particular, the PI/NUF(10) MMMs showed the best performance, with permeabilities of 42.71, 9.22, and 92.79 Barrer for CO 2 , O 2 , and He, respectively, which were 248%, 213%, and 173% higher than those of the pure membranes. Meanwhile, the selectivities of CO 2 /N 2 , O 2 /N 2 and He/N 2 were improved by 37%, 24%, and 8%, respectively. Close to the Robeson upper limit, demonstrating excellent gas separation potential.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"37 8-9","pages":"465-477"},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147882631","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}

{"title":"Design of photosensitive polyimides with improved solubility, thermal stability and mechanical strength","authors":"Bowen Zheng, Jing Li, Ning Li, Wa Li, Shuai Zhang, Haile Lei","doi":"10.1177/09540083251358869","DOIUrl":"https://doi.org/10.1177/09540083251358869","url":null,"abstract":"The preparation of soluble photosensitive polyimides maintaining high mechanical properties is a challenge. By synthesizing cross-linked interpenetrating polymer networks (IPNs) composed of polyacrylate and polyimide, soluble photosensitive polyimides with high mechanical properties were successfully developed. Isophorone diamine (IPDA) was introduced as a bulky group into the polymer backbone, significantly improving the solubility of PAE. PAE demonstrated a solubility of 55 wt% in N,N-dimethylformamide (DMF). Following photopolymerization, PAE was subjected to thermal treatment, leading to the formation of IPNs composed of polyimide and polyacrylate. This process enhanced the mechanical properties, yielding a tensile strength of 122.73 MPa, a breaking elongation of 4.76%, a Young’s modulus of 5.5 GPa, and a hardness of 0.51 GPa.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"37 8-9","pages":"478-487"},"PeriodicalIF":0.0,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911065","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}

{"title":"Polyimide films with high strength and toughness synthesized utilizing a synergistic strategy of stiffness-flexibility harmonization","authors":"Bo Mu, Wei Li, Yunpeng Li, Wenyi Zhang, Bangrui Kou, Baoping Yang, Junhong Guo, Li Chen, Li Tian","doi":"10.1177/09540083251358874","DOIUrl":"https://doi.org/10.1177/09540083251358874","url":null,"abstract":"In this manuscript, polyimide (PI) films with high strength and toughness are achieved by adjusting the stiffness and flexibility of the PI macromolecules utilizing rigid mixed diamine monomers, namely benzimidazole (PABZ) /benzoxazole (BOA) and flexible bisphenol A dianhydride (BPADA) monomer. Meanwhile, the stiffness of the PI is modulated as well by the coordination crosslinking between benzimidazole motifs of PABZ and Cu 2+ validated by FTIR, XPS and UV-vis spectra, respectively which could boost the arrangement and packing of the PI molecules confirmed by the packing coefficient. The comprehensive properties of the polyimide film are synergistically increased by combining the rigidity/flexibility of the macromolecules and the reversible coordination effect, with a strength and toughness of the PI film reaching 132.43 ± 1.73 MPa and 21.24 ± 2.13 MJ/m 3 respectively, as well as the decomposition temperature 5% weight loss (T d5% ) and glass transition temperature (Tg) attaining at 514°C and 251°C. More interestingly, the PI films exhibit excellent wear resistance with the volume wear rate reduced from 15.578 × 10 -6 mm 3 /Nm to 2.936 × 10 -6 mm 3 /Nm which accounts for a reduction of 81.2% compared to neat PI. Therefore, high-strength/toughness, improved thermal stability and excellent wear-resistant PI films can be fabricated utilizing a synergistic strategy of stiffness-flexibility harmonization which is expected to provide a novel design strategy for the high-performance PI application.","PeriodicalId":12932,"journal":{"name":"High Performance Polymers","volume":"37 6-7","pages":"390-402"},"PeriodicalIF":0.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915542","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}