Polymer International最新文献

Polymers in direct air capture: a mini review 聚合物在直接空气捕获：一个小回顾

IF 2.9 4区化学

Polymer International Pub Date : 2025-05-28 DOI: 10.1002/pi.6781

Hoda Shokrollahzadeh Behbahani, Matthew D Green

{"title":"Polymers in direct air capture: a mini review","authors":"Hoda Shokrollahzadeh Behbahani, Matthew D Green","doi":"10.1002/pi.6781","DOIUrl":"https://doi.org/10.1002/pi.6781","url":null,"abstract":"The urgent need to mitigate climate change has intensified interest in direct air capture (DAC) technology, which targets extracting carbon dioxide (CO2) directly from the atmosphere. Among the various sorbents used in DAC, polymers have emerged as a promising solution, either as active sorbents or as structural supports for active DAC materials, due to their customizable properties, scalability and low cost. This mini-review investigates the latest trends in polymer-based materials for DAC and identifies critical research gaps, such as the need for thorough lifecycle assessments and in-depth studies on the degradation of polymeric materials. It also outlines future directions, emphasizing the importance of developing cost-effective, scalable and durable polymers that can perform efficiently across diverse climatic conditions, including the unique challenges presented by cold weather regions abundant in renewable energy. This mini-review aims to inform ongoing efforts in the design and utilization of polymeric sorbents, providing insights that could guide the development of economically viable and environmentally sustainable DAC technologies. © 2025 The Author(s). Polymer International published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"651-656"},"PeriodicalIF":2.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pi.6781","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624844","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

Special issue: sustainable polymers and polymer composites for future technologies

IF 2.9 4区化学

Polymer International Pub Date : 2025-05-13 DOI: 10.1002/pi.6775

Wu Bin Ying, Gang Liu

引用次数: 0

Siloxane-containing polymers: from synthesis and characterization to advanced applications and sustainability 含硅氧烷聚合物：从合成和表征到先进的应用和可持续性

IF 2.9 4区化学

Polymer International Pub Date : 2025-04-24 DOI: 10.1002/pi.6764

Kamyar Karimi Nikoo, Petar R. Dvornic, Jeffrey L. Self, Timothy E. Long

引用次数: 0

An associative rheological model for the glass transition of glassy hydrogels undergoing bound and confined interactions 玻璃化水凝胶玻璃化转变的结合流变模型

IF 2.9 4区化学

Polymer International Pub Date : 2025-04-17 DOI: 10.1002/pi.6768

Ziyu Xing

{"title":"An associative rheological model for the glass transition of glassy hydrogels undergoing bound and confined interactions","authors":"Ziyu Xing","doi":"10.1002/pi.6768","DOIUrl":"https://doi.org/10.1002/pi.6768","url":null,"abstract":"The essential nature of the bound and confined non-covalent interactions in the condensed state and the glass transition of hydrogels has not been fully clarified. At present, the physical principles underlying the formation of glassy hydrogels with high water content (>50 wt%) at ambient conditions and room temperature to achieve superior mechanical properties are still a subject of active research and debate. The complexity of the bound and confined interactions between polymer chains and water poses significant challenges in unraveling the operational mechanisms behind glassy hydrogels. In this study, by combining non-random lattice theory and free volume theory, an associative rheological model is developed to investigate the thermodynamic and viscoelastic behavior of glassy hydrogels undergoing bound and confined interactions. Drawing upon the principles of rheology, the mechanism for the formation of glassy hydrogels at room temperature is described by spring and dashpot elements, where each mechanical element corresponds to a specific molecular mechanism. The nonlinear behavior of rheology is accurately captured by the lattice structure engaged in these interactions. Our proposed model facilitates a transition between the Maxwell and Voigt models, thereby enabling a comprehensive analysis of key viscoelastic parameters such as storage modulus (E′), loss modulus (E″), loss factor (tan δ = E″/E′) and the observed glass transition phenomena in glassy hydrogels. Finally, the effectiveness of the proposed associative rheological models is verified using the experimental results reported in the literature, offering a principal understanding of the exceptional mechanical properties of glassy hydrogels governed by bound and confined interactions. © 2025 Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"727-738"},"PeriodicalIF":2.9,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624774","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

Composites of an epoxy and two-dimensional boron nitride nanosheets (BNNS) as a coating for efficient thermal management of electronic devices 环氧树脂和二维氮化硼纳米片复合材料（BNNS）作为电子器件的有效热管理涂层

IF 2.9 4区化学

Polymer International Pub Date : 2025-04-17 DOI: 10.1002/pi.6770

Will Owens, Martin Worrall, David Norman, Myles Blurton, Fengzai Tang, Geoff West, Tony McNally

{"title":"Composites of an epoxy and two-dimensional boron nitride nanosheets (BNNS) as a coating for efficient thermal management of electronic devices","authors":"Will Owens, Martin Worrall, David Norman, Myles Blurton, Fengzai Tang, Geoff West, Tony McNally","doi":"10.1002/pi.6770","DOIUrl":"https://doi.org/10.1002/pi.6770","url":null,"abstract":"Efficient thermal management is an increasingly important factor in the development of future electronic devices where operating speed, device lifespan and safety are determined by optimising heat dissipation to reduce component temperature. The heat generated during continuous and/or cyclic operation can be dissipated using thermal interface materials (TIMs). A facile yet novel method based on a combination of centrifugal mixing and micropipetting was very effective at accurately depositing thin layers of an epoxy filled with a highly interconnected boron nitride nanosheet (BNNS) network. The use of composites of an epoxy and BNNS as a TIM was assessed by measuring the operating temperature of a diode on a printed circuit board, to replicate in-service use, using thermal imaging. The operating temperature of the device decreased by almost 57 °C on inclusion of a BNNS volume fraction (φ) of 0.15 and the thermal resistance by ca 50%. The device displayed excellent thermal stability and a consistent temperature response during cyclical operations over 10 h. The reliability of transistors depends exponentially upon operating temperature and even a 10–15 °C reduction can double the lifespan of an electronic device. © 2025 The Author(s). Polymer International published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 7","pages":"553-559"},"PeriodicalIF":2.9,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pi.6770","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197577","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

Design of an amino-functionalized molecularly imprinted polymer via thiol–maleimide click chemistry for chiral separation of ketoprofen 巯基马来酰亚胺点击化学设计用于酮洛芬手性分离的氨基功能化分子印迹聚合物

IF 2.9 4区化学

Polymer International Pub Date : 2025-04-11 DOI: 10.1002/pi.6762

May Abdullah Abomuti

{"title":"Design of an amino-functionalized molecularly imprinted polymer via thiol–maleimide click chemistry for chiral separation of ketoprofen","authors":"May Abdullah Abomuti","doi":"10.1002/pi.6762","DOIUrl":"https://doi.org/10.1002/pi.6762","url":null,"abstract":"A molecularly imprinted polymer was developed to selectively adsorb S-ketoprofen (S-KP) and chirally separate it from a racemic mixture. Synthesis involves condensation polymerization of 4-mercaptophenol and 4-nitrophenol with formaldehyde to obtain a thiolated/nitro-functionalized polymer that was further reduced to an amino-functionalized polymer (HS-P-NH2) using sodium dithionite. Finally, the S-imprinted polymer (S-KP-P) was prepared by imprinting S-KP onto HS-P-NH2, followed by post-crosslinking with bis(maleimido)ethane through thiol–maleimide click reaction. Confirmation of the successful functionalization and crosslinking was done via structural characterization techniques. Kinetic studies showed that the crosslinking reaction followed second-order kinetics, with thermodynamic analysis indicating a spontaneous, exothermic process. In the adsorption experiments, S-KP-P manifested better enantioselectivity in the maximum capacity of adsorptions of 422 mg g−1 for S-KP versus 243 mg g−1 for R-KP. The Langmuir model provided the best fit to the isotherm data, confirming monolayer adsorption on homogeneous binding sites. Chiral separation experiments using column chromatography demonstrated the ability of S-KP-P to resolve (±)-KP, yielding 97% enantiomeric excess (ee) for R-KP in the first elution and 94% ee for S-KP in the second. In contrast, the non-imprinted polymer showed no enantioselectivity. The results confirm the potential of S-KP-P for efficient enantioselective separation in pharmaceutical applications. © 2025 Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"696-709"},"PeriodicalIF":2.9,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624495","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

Biofunctional polyethylene terephthalate surface by CO2 plasma activation 生物功能聚对苯二甲酸乙二醇酯表面CO2等离子体活化

IF 2.9 4区化学

Polymer International Pub Date : 2025-04-10 DOI: 10.1002/pi.6756

Rohini Verma, Chetna Verma, Bhuvanesh Gupta, Samrat Mukhopadhyay

{"title":"Biofunctional polyethylene terephthalate surface by CO2 plasma activation","authors":"Rohini Verma, Chetna Verma, Bhuvanesh Gupta, Samrat Mukhopadhyay","doi":"10.1002/pi.6756","DOIUrl":"https://doi.org/10.1002/pi.6756","url":null,"abstract":"Polyethylene terephthalate (PET) fabric was functionalized by carbon dioxide (CO2) plasma treatment to introduce carboxyl (–COOH) functionality on its surface. The presence of hydrophilic groups increased the hydrophilicity and decreased the water drop absorption time as the plasma exposure time increased from 30 to 120 s. The maximum carboxyl content of 1.9 μg cm−2 was achieved within 60 s exposure time, with 80 W discharge power and 40 cm3 min−1 gas flow rate. The surface chemistry of untreated and plasma-treated PET fabrics was analyzed using attenuated total reflectance - Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). The surface morphology was monitored as a function of exposure time using field emission scanning electron microscopy (FE-SEM) and atomic force spectroscopy (AFM). The colony count method was used to study the Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacterial adhesion on the surface. Polyethylene glycol (PEG) (molecular weight 1000) was used to immobilize the plasma-treated surface. The results showed a significant reduction in the bacterial adhesion to the functionalized PET fabric compared to untreated fabric. However, the immobilization of PEG on the PET surface inhibited bacterial adherence significantly and imparted antifouling behavior on the fabric surface. © 2025 Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"657-666"},"PeriodicalIF":2.9,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624625","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 energy-harvesting performance of eggshell-derived hydroxyapatite/polyurethane piezocomposites through mixture design approach: a promising route for advanced dielectric materials 通过混合设计方法增强蛋壳衍生羟基磷灰石/聚氨酯压电复合材料的机械能量收集性能：先进介电材料的一条有前途的途径

IF 2.9 4区化学

Polymer International Pub Date : 2025-04-02 DOI: 10.1002/pi.6761

Tanzeel Munawar, Nadia Akram, Khalid Mahmood Zia, Muhammad Saeed

{"title":"Enhanced mechanical energy-harvesting performance of eggshell-derived hydroxyapatite/polyurethane piezocomposites through mixture design approach: a promising route for advanced dielectric materials","authors":"Tanzeel Munawar, Nadia Akram, Khalid Mahmood Zia, Muhammad Saeed","doi":"10.1002/pi.6761","DOIUrl":"https://doi.org/10.1002/pi.6761","url":null,"abstract":"Piezocomposites provide lightweight, flexible and scalable technologies for efficiently converting mechanical energy into electrical energy. For sustainable energy production, we examined a low-cost, biobased alternative to convert mechanical energy into piezoelectric energy. Hydroxyapatite (HA) having a particle size of 53.26 nm made from chicken eggshell waste was combined with polyurethane (PU) to produce piezoelectric composites. In situ polymerization was performed using aliphatic isocyanates, isophorone diisocyanate, poly(propylene glycol) and 1,4-butanediol. The piezoelectric properties of six different composite films with varying HA concentrations (0–25%) were optimized using a statistical mixture design approach. Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction analysis, dynamic mechanical analysis and scanning electron microscopy were utilized for physicochemical characterization. As the HA concentration was increased, the mechanical properties were enhanced, as a uniform dispersion of HA was observed within the PU matrix. An oscilloscope displayed an output voltage of 17.46 V at 16 Hz, with 3 N force applied to a 25% HA composite film. The dielectric constant, dielectric loss and resistivity are frequency functions, and impedance analysis showed low-frequency values with high dielectric properties. The present study has indicated that PU/HA biocomposites are cost-effective and lightweight and can be used in piezoelectric devices in biomedical and wearable electronics. © 2025 Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"710-726"},"PeriodicalIF":2.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624259","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 of dielectric properties of Si-B-Zr/SiO2/FPI composites Si-B-Zr/SiO2/FPI复合材料介电性能研究

IF 2.9 4区化学

Polymer International Pub Date : 2025-03-26 DOI: 10.1002/pi.6760

Wei Zhao, Mingyue Jiang, Hao Chen, Shuang Yin, Jing Zhang, Boxuan Wang, Xiangyu Shi, Xiaorui Zhang, Zijian Wu, Ling Weng

{"title":"Study of dielectric properties of Si-B-Zr/SiO2/FPI composites","authors":"Wei Zhao, Mingyue Jiang, Hao Chen, Shuang Yin, Jing Zhang, Boxuan Wang, Xiangyu Shi, Xiaorui Zhang, Zijian Wu, Ling Weng","doi":"10.1002/pi.6760","DOIUrl":"https://doi.org/10.1002/pi.6760","url":null,"abstract":"Due to the fact that the inter-turn insulation of frequency conversion motors is constantly subjected to harsh environments characterized by strong electric fields and high temperatures, higher requirements are imposed on the corona aging resistance and dielectric properties of inter-turn insulation materials. This study employed a hydrolysis–condensation method to prepare Si-B-Zr nano-oxide dispersion, which was then modified by doping with gas-phase SiO2 to obtain Si-B-Zr/SiO2 dispersion. Subsequently, 6FDA-type Si-B-Zr/SiO2/FPI three-layer composite films were fabricated at different concentration gradients using in situ polymerization and dip-coating methods. The influence of Si-B-Zr/SiO2 content on the corona resistance of the materials was systematically investigated, aiming to achieve excellent corona resistance while reducing the dielectric constant and dielectric loss. Experimental results demonstrated that compared with pure PI, the Si-B-Zr/SiO2/FPI three-layer composite films with different doping amounts all exhibited significant improvement in corona resistance. In particular, the composite film with 10 wt% doping showed optimal performance under the test conditions of 155 °C and 80 kV mm−1, with a corona resistance life reaching 8 h, which is 5.3 times that of pure PI and 3.6 times that of FPI. Meanwhile, this composite film displayed excellent dielectric properties, with a dielectric constant as low as 3.4 and a dielectric loss of only 0.0085 at operating frequency. © 2025 Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"688-695"},"PeriodicalIF":2.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624764","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

Characterization of novel miswak and bioactive glass composites in various ratios 不同比例的新型miswak和生物活性玻璃复合材料的表征

IF 2.9 4区化学

Polymer International Pub Date : 2025-03-24 DOI: 10.1002/pi.6758

Zahrah Faraj Omar Hunaydi, Noor Ayuni Ahmad Shafiai, Siti Noor Fazliah Mohd Noor, Zuratul Ain Abdul Hamid, Nawal Radhiah Abdul Rahman

{"title":"Characterization of novel miswak and bioactive glass composites in various ratios","authors":"Zahrah Faraj Omar Hunaydi, Noor Ayuni Ahmad Shafiai, Siti Noor Fazliah Mohd Noor, Zuratul Ain Abdul Hamid, Nawal Radhiah Abdul Rahman","doi":"10.1002/pi.6758","DOIUrl":"https://doi.org/10.1002/pi.6758","url":null,"abstract":"The present study aims to formulate and characterize novel composite materials consisting of miswak (Salvadora persica) and bioactive glass (45S5 and 54S4P) in different ratios (25%–75%, 50%–50% and 75%–25%). Miswak sticks were dried, ground into a fine powder and blended with bioactive glass powder obtained through a melt-derived technique at 1400 °C. The resulting composites, designated M25BG45, M50BG45, M75BG45, M25BG54, M50BG54 and M75BG54, were compacted into pellets 1 mm thick weighing approximately 150 mg using a manual hydraulic press and then sintered at 200 °C. Comprehensive characterization was conducted using gas chromatography–mass spectrometry, field emission SEM (FESEM), XRD, X-ray fluorescence spectroscopy and Fourier transform infrared (FTIR) spectroscopy. FESEM showed a homogeneous distribution of miswak particles within the bioactive glass matrix. XRD confirmed the amorphous nature of the bioactive glass and the distinctive peaks of miswak. FTIR spectra revealed absorption bands corresponding to both miswak and bioactive glass. The structural assessment of these composites, incorporating varying proportions of miswak with bioactive glass types 45S5 and 54S4P, provides valuable contributions towards optimizing bioactivity and biocompatibility. These findings suggest potential applications of the innovative miswak–bioactive glass composite in oral and dental healthcare. © 2025 Society of Chemical Industry.","PeriodicalId":20404,"journal":{"name":"Polymer International","volume":"74 8","pages":"676-687"},"PeriodicalIF":2.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624799","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