Journal of Polymer Research最新文献_第4页

The triazine-based flexible covalent organic frameworks prepared by tetrakis(4-aminophenyl)ethylene and 2,3,5,6-tetramethyl-1,4- phenylenediamine for fluorescence sensing iodide ions 由四（4-氨基苯基）乙烯和2,3,5,6-四甲基-1,4-苯二胺制备的荧光传感碘离子的三嗪基柔性共价有机框架

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-12 DOI: 10.1007/s10965-026-05116-w

Qi Peng

{"title":"The triazine-based flexible covalent organic frameworks prepared by tetrakis(4-aminophenyl)ethylene and 2,3,5,6-tetramethyl-1,4- phenylenediamine for fluorescence sensing iodide ions","authors":"Qi Peng","doi":"10.1007/s10965-026-05116-w","DOIUrl":"10.1007/s10965-026-05116-w","url":null,"abstract":"<div><p>Due to its larger size and its relatively weak basicity, the binding affinity of iodide ion to the receptor is the weakest among all halide ions. Therefore, the POPs lacking both hydroxyl and amino groups exhibit low sensitivity in the fluorescence sensing of iodide ions. Herein, the triazine-based flexible COFs (TTATPE and TTMPD) were prepared by Schiff base reactions with 2,4,6-tris-(4-formylphenoxy)-1,3,5-triazine (TPT − 3 − CHO) and [tetrakis(4-aminophenyl)ethylene (TATPE) or (2,3,5,6-tetramethyl-1,4-phenylenediamine (TMPD)]. The triazine-based flexible COFs have large BET-specific surface areas of 1777 and 1443 m<sup>2</sup> g<sup>− 1</sup>, high heat stability, and a certain degree of crystallinity, which can serve as fluorescent sensing materials for sensing iodide ions with high selectivity and high sensitivity. The fluorescence quenching constants of iodide ions to TTATPE and TTMPD are 1.35 × 10<sup>4</sup> and 1.53 × 10<sup>4</sup> L mol<sup>− 1</sup>, respectively. Fluorescence quenching of the triazine-based flexible COFs by iodide ions originates from heavy atom effect and inter filtration effect (IFE). Recovery experiment in sand samples confirms that TTATPE and TTMPD have adequate sensitivity as the fluorescence sensors for fluorescence detection of I<sup>−</sup> in environmental samples.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927527","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

Carbon nanotube-reinforced photopolymer nanocomposites for vat photopolymerization: resin formulation, curing kinetics, and multifunctional performance 用于还原光聚合的碳纳米管增强光聚合物纳米复合材料：树脂配方、固化动力学和多功能性能

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-11 DOI: 10.1007/s10965-026-05118-8

Vinícius Virtuoso, Adriano Silva, Fernanda Roman, Helder Gomes, Bruno Medeiros, João Rocha, João Ribeiro

{"title":"Carbon nanotube-reinforced photopolymer nanocomposites for vat photopolymerization: resin formulation, curing kinetics, and multifunctional performance","authors":"Vinícius Virtuoso, Adriano Silva, Fernanda Roman, Helder Gomes, Bruno Medeiros, João Rocha, João Ribeiro","doi":"10.1007/s10965-026-05118-8","DOIUrl":"10.1007/s10965-026-05118-8","url":null,"abstract":"<div><p>Carbon nanotubes (CNTs) are among the most promising nanofillers for developing multifunctional photopolymer nanocomposite resins for vat photopolymerization (VPP), including stereolithography (SLA), digital light processing (DLP), and masked stereolithography (MSLA). Their high aspect ratio, electrical conductivity, thermal stability, and mechanical strength can enable photopolymer matrices with enhanced stiffness, conductivity, piezoresistive response, and thermal performance. However, the translation of CNT-reinforced photopolymer resins into reliable VPP processes remains limited by a narrow formulation and processing window. CNT agglomeration, sedimentation, viscosity increase, and strong absorption or scattering of UV/visible light can reduce cure depth, impair interlayer adhesion, and compromise dimensional accuracy. This review discusses CNT structure and functionalization, photopolymer resin formulation, dispersion methods, rheological behavior, curing kinetics, and the resulting mechanical, electrical, and thermal properties of CNT/photopolymer nanocomposites processed by VPP. Particular attention is given to the trade-off between filler loading, resin printability, curing behavior, and multifunctional performance. Current applications in sensing, electromagnetic interference shielding, biomedical devices, lightweight structures, and energy-related components are discussed, with particular attention to the distinction between laboratory demonstrations and potential industrial uses. Finally, the review identifies key research needs, including improved dispersion stability, standardized characterization protocols, safer post-processing routes, and advanced curing strategies such as multi-material and multi-wavelength VPP.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927577","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

Structure and flory-rehner analysis of organo-inorganic superabsorbent nanocomposites based on acrylic monomers and montmorillonite clay 基于丙烯酸单体和蒙脱土的有机-无机高吸水性纳米复合材料的结构和flori -rehner分析

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-11 DOI: 10.1007/s10965-026-05113-z

Iftikhar Ahmed Channa, Jaweria Ashfaq, Ambreen Azmat, Azmat Chandio, Syed Irfan, Ali Dad Chandio, Sarmad Feroze, Muthanna K. Kareem, Muhammad Ali Shar, Abdulaziz Alhazaa

{"title":"Structure and flory-rehner analysis of organo-inorganic superabsorbent nanocomposites based on acrylic monomers and montmorillonite clay","authors":"Iftikhar Ahmed Channa, Jaweria Ashfaq, Ambreen Azmat, Azmat Chandio, Syed Irfan, Ali Dad Chandio, Sarmad Feroze, Muthanna K. Kareem, Muhammad Ali Shar, Abdulaziz Alhazaa","doi":"10.1007/s10965-026-05113-z","DOIUrl":"10.1007/s10965-026-05113-z","url":null,"abstract":"<div><p>Superabsorbent polymer (SAP) nanocomposites based on acrylic acid and acrylamide, reinforced with montmorillonite (MMT) clay, were synthesized via free-radical polymerization to investigate the structural, thermal, and swelling properties. Fourier transform infrared spectroscopy (FTIR) was used to confirm the copolymerization of MMT into the polymer network, with strong hydrogen-bonding interactions among the carboxylate, amide, and hydroxyl groups. Scanning electron microscopy (SEM) showed that the morphology of the MMT-incorporated composite was a highly porous, interconnected three-dimensional network, providing good diffusion paths for water. TGA showed thermal stability of the SAP composite, retaining ~ 35–40 wt% compared to the rapid polymer degradation trend. The swelling experiment resulted in a quick initial water uptake and balanced swelling, with a peak absorbency of about 120 g/g, which was due to the synergistic effect of partially neutralized acrylic acid, acrylamide functional groups, as well as MMT reinforcement. Kinetics of swelling were correlated with the pseudo-second-order Schott model, with a high correlation coefficient (R² > 0.98), indicating that both surface wetting and polymer chains control the absorption process. The Flory-Rehner theory also provided a close relationship between structure and properties, including that the higher the crosslink density, the lower the swelling capacity, but the higher the equilibrium rate.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927475","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

Piezoelectric performance and crystallization properties of poly (vinylidene fluoride) (PVDF)/thermoplastic polyurethane elastomer (TPU) nanofiber solution blends 聚偏氟乙烯(PVDF)/热塑性聚氨酯弹性体（TPU）纳米纤维溶液共混物的压电性能和结晶性能

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-10 DOI: 10.1007/s10965-026-05105-z

Marwa Saad, Jawad Ullah, Ahmed H. Hassanin, Krzysztof Kruczała, Germein Magdy, Sara Noman, Remya Nair, Ishac Kandas, Sneha Bhagyaraj, Patrik Sobolčiak, Anton Popelka, Nader Shehata

{"title":"Piezoelectric performance and crystallization properties of poly (vinylidene fluoride) (PVDF)/thermoplastic polyurethane elastomer (TPU) nanofiber solution blends","authors":"Marwa Saad, Jawad Ullah, Ahmed H. Hassanin, Krzysztof Kruczała, Germein Magdy, Sara Noman, Remya Nair, Ishac Kandas, Sneha Bhagyaraj, Patrik Sobolčiak, Anton Popelka, Nader Shehata","doi":"10.1007/s10965-026-05105-z","DOIUrl":"10.1007/s10965-026-05105-z","url":null,"abstract":"<div><p>A series of poly(vinylidene fluoride) (PVDF)/thermoplastic polyurethane elastomer (TPU) blends was prepared with various mass ratios through electrospinning. The piezoelectric performance, along with the miscibility and crystallization behavior of the blends, was studied. The results showed that the incorporation of TPU significantly promoted β-phase formation, and the PVDF with 10 wt% TPU exhibited the highest β-phase content as confirmed by ATR-IR and Raman. XRD analysis reveals that blending PVDF with 10 wt% TPU enhances the β-phase crystallite size. Due to the maximum interactions between the crystalline structure of PVDF and 10 wt% TPU, these can include torsional and bending modes related to PVDF chain movements from alpha to beta and crystal lattice vibrations, as proved by FT-IR, Raman, and XRD. However, as the TPU content increased further than 50 wt%, FT-IR, and Raman spectra were dominated by TPU-related peaks, while the characteristic signals of PVDF were no longer evident. This absence results from TPU overlap, which diminishes PVDF spectral contribution. When TPU content reached 50 wt%, DSC showed the lowest crystallinity at 24.0%.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-026-05105-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927069","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}

引用次数: 0

Hydroxyapatite-loaded PMMA/UHMWPE composites for denture bases: structural, thermal, mechanical, and in-vitro evaluation 羟基磷灰石负载的PMMA/UHMWPE复合材料用于义齿基托：结构，热，机械和体外评估

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-09 DOI: 10.1007/s10965-026-05114-y

Balaji Ayyanar Chinnappan, Sabu Thomas, N. S. Smrithi, Jack J. Kenned

{"title":"Hydroxyapatite-loaded PMMA/UHMWPE composites for denture bases: structural, thermal, mechanical, and in-vitro evaluation","authors":"Balaji Ayyanar Chinnappan, Sabu Thomas, N. S. Smrithi, Jack J. Kenned","doi":"10.1007/s10965-026-05114-y","DOIUrl":"10.1007/s10965-026-05114-y","url":null,"abstract":"<div><p>In this work, polymethyl methacrylate (PMMA) and ultra-high molecular weight polyethylene (UHMWPE) composites loaded with hydroxyapatite (HAp) are developed for denture base. The Fourier transform infrared (FTIR) spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), and Energy-dispersive X-ray spectroscopy (EDS) analysis has been carried out and found the presence of functional groups, surface morphology and chemical compositions. The 30 wt% UHMWPE loaded PMMA composite revealed the maximum tensile (32.5 MPa), compressive strength (118 MPa), 40 wt% UHMWPE loaded PMMA composite revealed the maximum flexural strength (83.8 MPa), and 30 wt% UHMWPE combined with 30 wt% HAp loaded composite revealed the maximum a Shore D hardness of 97.6 SHN. The DSC and TGA revealed the thermal stability of the 30 wt% HAp/PMMA/UHMWPE (P40U30H30) composite. The in-vitro cytotoxicity study was carried out through L929 cell line with triplicate results revealed that 92% viability (8% cytotoxicity) at 5 µg/mL and 83% viability (17% cytotoxicity) at 100 µg/mL. The denture was made by injecting PMMA, UHMWPE, and HAp mixture into the flasks through injection moulding process. The HAp/PMMA/UHMWPE composites performed better mechanical, thermal, and biocompatibility to use for denture base biomaterial.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927007","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

Dual-modified vinyl silicone dielectric elastomers for micro-crawling soft robots 微爬行软体机器人用双改性乙烯基硅橡胶介电弹性体

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-09 DOI: 10.1007/s10965-026-05110-2

Yang Hong, Yun Yang, Zening Lin, Tao Jiang, Zirong Luo

{"title":"Dual-modified vinyl silicone dielectric elastomers for micro-crawling soft robots","authors":"Yang Hong, Yun Yang, Zening Lin, Tao Jiang, Zirong Luo","doi":"10.1007/s10965-026-05110-2","DOIUrl":"10.1007/s10965-026-05110-2","url":null,"abstract":"<div><p>Dielectric elastomer actuators (DEAs) are critical driving components for micro-crawling soft robots. Commercial vinyl silicone matrices suffer from an intrinsic trade-off between mechanical flexibility and dielectric performance—a fundamental bottleneck that triggers a series of derivative drawbacks including low permittivity, weak electromechanical response, filler agglomeration and conflicting dielectric loss-breakdown behaviors, severely restricting large strain output under low electric fields. This work proposes a synergistic dual modification strategy combining thiol-ene polar grafting and core-shell MWCNT@PDA filling, which delivers 1 + 1>2 performance enhancement via complementary effects: grafted hydroxyl groups endow silicone with intrinsic polarity and low modulus, while PDA-wrapped carbon nanotubes further boost dielectric permittivity. Unique hydrogen bonds between grafted hydroxyls and PDA shells strengthen filler-matrix interfacial adhesion, an exclusive coupling effect unachievable by single modification. Thiol-ene modified VMQ-BME achieves a reduced Young’s modulus of 0.15 MPa, a dielectric constant of 5.8 at 1 kHz, and an actuated strain of 23.53% at 17.3 kV·mm<sup>− 1</sup> (18 times that of neat VMQ). After incorporating 1.0 wt% MWCNT@PDA, the composite’s permittivity rises to 7.86. The PDA shell suppresses leakage current and electric field distortion, realizing a prominent strain of 31.55% at a low field of 13.61 kV·mm<sup>− 1</sup>. A micro-crawling robot prototype assembled with the optimized film reaches a linear speed of 8 mm·s<sup>− 1</sup>. This synergistic strategy synchronously optimizes mechanical, dielectric and low-field electromechanical properties, outperforming single-modified materials for advanced soft actuators and miniature robots.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926935","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

Effect of 3-D printing on mechanical properties of poly(vinyl alcohol) based algal biopolymer composites 3d打印对聚乙烯醇基藻类生物聚合物复合材料力学性能的影响

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-07 DOI: 10.1007/s10965-026-05112-0

Pranav Krishnan, Manojit Das, Rushikesh S. Ambekar, Himanshu Singh, Sehmus Ozden, Chandra Sekhar Tiwary

{"title":"Effect of 3-D printing on mechanical properties of poly(vinyl alcohol) based algal biopolymer composites","authors":"Pranav Krishnan, Manojit Das, Rushikesh S. Ambekar, Himanshu Singh, Sehmus Ozden, Chandra Sekhar Tiwary","doi":"10.1007/s10965-026-05112-0","DOIUrl":"10.1007/s10965-026-05112-0","url":null,"abstract":"<div><p>A significant challenge of the twenty-first century is to develop sustainable and environmentally friendly materials that also exhibit high strength. One key strategy is to utilize naturally derived resources to manufacture Biocomposites. These consist of a bio-derived reinforcement for strength within a biodegradable matrix, drastically mitigating the environmental impact in their manufacture and disposal. In this work, a novel poly (vinyl alcohol) (PVA) composite reinforced with Chlorella microalgae (<i>Chlorella Salina</i>) is developed to fabricate films using the Direct Ink Writing 3D printing technique. Mechanical properties and structural characteristics of these 3D printed composites are benchmarked against those prepared by traditional solvent casting. The 3D printed samples demonstrate superior mechanical performance, primarily attributed to more uniform particle dispersion and directionally oriented microalgae reinforcements within the polymer matrix. Incorporating microalgae into printable PVA-based inks opens future possibilities for developing sustainable packaging materials and complex 3D structures.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927211","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

Study on the properties of bio-based flame-retardant TPU composites of PAPP /SPI synergistic with SiO2 PAPP /SPI与SiO2协同作用的生物基阻燃TPU复合材料性能研究

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-07 DOI: 10.1007/s10965-026-05069-0

Tingting Yang, Fang Zhu, Yue Shi, Hongxiang Ou

{"title":"Study on the properties of bio-based flame-retardant TPU composites of PAPP /SPI synergistic with SiO2","authors":"Tingting Yang, Fang Zhu, Yue Shi, Hongxiang Ou","doi":"10.1007/s10965-026-05069-0","DOIUrl":"10.1007/s10965-026-05069-0","url":null,"abstract":"<div><p>Thermoplastic polyurethane (TPU) has serious flammability issues, which limit its wider application. In this study, a renewable and environmentally friendly intumescent flame retardant (IFR) system was designed by combining piperazine pyrophosphate (PAPP) with soy protein isolate (SPI) at a mass ratio of 5:1.To further enhance the flame retardant performance, nano-silica (SiO₂) was introduced as a synergist, successfully preparing high-performance flame-retardant polyurethane composites. The flame retardancy and thermal stability of flame-retardant polyurethane composites were studied by limiting oxygen index (LOI), vertical combustion test(UL-94), thermogravimetric analysis(TGA) and cone calorimetry tests(CCT). The results demonstrate that the TPU-4 composite LOI achieved at 33.6%, UL-94 reached V-0 grade, and the TPU-4 composite exhibited reductions in peak heat release rate (pHRR) and total heat release (THR) of 70.8% and 42.4%, tensile strength increased by 147.1%, respectively compared with the original TPU sample, which proved that the incorporation of 1wt% SiO<sub>2</sub> produces a significant positive synergistic effect on flame retardancy. In this study, a green, efficient and multi-functional scheme is proposed to achieve both high flame retardancy and mechanical properties, providing a promising strategy for next-generation of fireproof polymer materials.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926952","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

Enhanced mechanical, dielectric and flame-retardant performance of jute/epoxy composites via upcycled RO membrane interleaving and graphene nanofillers 黄麻/环氧复合材料的机械性能、介电性能和阻燃性能的研究

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-05 DOI: 10.1007/s10965-026-05111-1

Ashok Kumaresan Gladys, Ajith Damodaran, G. K. Sathishkumar, Praveen Kumar Alagesan, Gowtham Shanmugam, Kodiswaran Anbazhagan

{"title":"Enhanced mechanical, dielectric and flame-retardant performance of jute/epoxy composites via upcycled RO membrane interleaving and graphene nanofillers","authors":"Ashok Kumaresan Gladys, Ajith Damodaran, G. K. Sathishkumar, Praveen Kumar Alagesan, Gowtham Shanmugam, Kodiswaran Anbazhagan","doi":"10.1007/s10965-026-05111-1","DOIUrl":"10.1007/s10965-026-05111-1","url":null,"abstract":"<div><p>This work presents a circular economy approach by developing hybrid jute/epoxy composites enhanced with nanographene (0–5 wt%) and reusable, permeable carriers derived from end-of-life reverse osmosis (RO) membranes. To increase delamination durability, RO membrane spacers have been incorporated as interleaf layers. Vacuum bag molding was used to fabricate the hybrid laminates; their mechanical, dielectric, flammability, wettability, and biodegradation characteristics were meticulously assessed. The findings specify the combined effect of the RO membrane interleaf and nanographene reinforcement. The presence of 2 wt% nanographene, in combination with the RO interleaf, resulted in optimal mechanical performance, achieving a tensile strength of 45.05 MPa and a flexural strength of 84.61 MPa. The viability for electronic uses was validated by dielectric studies, which demonstrate that the dielectric constant increases by up to 56% at 5 wt% nanographene, while the dielectric loss diminished with greater frequency. The flame propagation speed was lowered by 73% at 5 wt% nanographene in the flammability tests, leading to the UL-94 V-0 classification. A shift from hydrophilic (61<sup>0</sup>) to increased surface hydrophobicity (75<sup>0</sup>) was observed in contact angle measurements; in addition, soil burial tests showed greater resistance to biodegradation at higher nanographene loadings. The developed composites exhibit improved mechanical, dielectric, and flame-retardant properties, representing their potential for selected dielectric and lightweight automotive applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926622","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 of high-performance self-healing polyurethane elastomers via the dual-dynamic network formed by disulfide bond and hydrogen bond 利用二硫键和氢键形成的双动态网络制备高性能自愈聚氨酯弹性体

IF 3.5 4区化学

Journal of Polymer Research Pub Date : 2026-09-04 DOI: 10.1007/s10965-026-05102-2

Pengbo Wang, Feng Tian, Hong Fan, Lu Li, Qibin Chen

{"title":"Preparation of high-performance self-healing polyurethane elastomers via the dual-dynamic network formed by disulfide bond and hydrogen bond","authors":"Pengbo Wang, Feng Tian, Hong Fan, Lu Li, Qibin Chen","doi":"10.1007/s10965-026-05102-2","DOIUrl":"10.1007/s10965-026-05102-2","url":null,"abstract":"<div><p>Polyurethane (PU) elastomers are widely used in advanced applications; however, conventional polyurethanes suffer from irreversibility, leading to the poor self-healing and limited recyclability. To address these issues, a series of self-healing polyurethane elastomers (PURs) with dual dynamic networks, derived from a specifically designed chain extender consisted of 4,4’-diaminodiphenyl disulfide (4-AFD) and <i>N</i>,<i>N</i>-bis(2-hydroxyethyl)-3-aminopropionamide (OH-AAM-OH), was prepared through regulating the molar ratio (R) of 4-AFD and OH-AAM-OH. The results indicate that as the 4-AFD content increases, the glass transition temperature (<i>T</i><sub>g</sub>) and the tensile strength gradually improve; PU0:1, in which only OH-AAM-OH was used as the chain extender, exhibits the distinct stress-induced crystallization (SIC) behavior due to its higher segment flexibility and enhanced hydrogen bonding. Furthermore, PU1:1 (with a 1:1 molar ratio of 4-AFD to OH-AAM-OH) achieves the self-healing efficiency as high as 94.6%, demonstrating that the dual-dynamic network system exerts a significantly synergistic effect on the self-healing properties of PURs. This study provides a theoretical basis for the controlled design of high-performance self-healing PU elastomers.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926356","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