POLYMER INTERNATIONAL
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2025
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IF 3.6
Andong Xiao,Rong Xiao,Zaiming Geng,Gang Wan,Sisi Zhu,Chuanshi Cheng,Yunju Bai,Yi Lv,Yu Qian,Chang Liu
Current methods for superhydrophobic modification of polypyrrole (PPy) are typically complex and challenging to implement at scale. To address this limitation, this study developed a durable superhydrophobic photothermal coating by modifying PPy through a facile surface treatment method. The successful modification was confirmed by TEM and Fourier transform infrared spectroscopy analyses, revealing a uniform polymer film on PPy surfaces. When combined with epoxy resin at an optimal mass ratio of 0.3, the coating exhibited well-defined micro/nano structures with a contact angle of 153.6°. The coating maintained good chemical stability and mechanical durability. Under simulated conditions, the coating demonstrated excellent photothermal conversion efficiency and cycling stability. In freeze–thaw testing, coated concrete specimens showed significantly enhanced frost resistance, with mass loss reduced to one-fifth compared to uncoated samples after 50 cycles. This innovative coating system provides an effective strategy for improving concrete durability in harsh environments. © 2025 Society of Chemical Industry.
研究领域:
材料科学
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土木工程
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
·
2025
·
IF 3.6
Wei Liu,Xian Wu,Weishuai Qiu,Yang Li,Shikui Jia,Lihua Xiao
Acquiring freshwater from seawater, the solar interfacial vapor generator (SIVG) offers a passive and decentralized approach to addressing water shortage problems. However, the performance of current SIVGs is greatly restricted by the disadvantages of poor controllability and manipulation of seawater transport porous structure and the evaporation interface. To realize rapid seawater replenishment and highly efficient vaporization, we developed a novel polyethylene terephthalate (PET) SIVG with small-sized oriented pores and an ultrathin photothermal conversion layer that exhibited a highly efficient water evaporation rate under both simulated solar and outdoor sunlight illumination. The well-arranged and highly oriented pores with controllable size in PET acted as a confined mass transfer fluid pump to spontaneously transport seawater to the evaporation layer, in which a maximum height of 68 mm via the capillary rise mechanism was reached. The resultant PET layer possessed a low density of 0.08 g cm −3 that exhibited an ideal floating performance to steady the interfacial evaporation. Moreover, due to the superior dispersion structure in the photothermal conversion layer, the surface temperature of the SIVG greatly increased to 101.2 °C within 45 s, and the evaporation rate reached 1.26 kg m −2 h −1 . This work provides a novel strategy for preparing a high performance SIVG and also paves an innovative way for obtaining fresh water. © 2025 Society of Chemical Industry.
研究领域:
可再生能源
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材料科学
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海水淡化
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太阳能转换
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产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
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2025
·
IF 3.6
Miaojia Ye,Qian Hu,Xiaoyue Huang,Yiwen Wang,Wanchao Wu,Xinzhe Zhang,Chonggang Wu,Chuanqun Hu
Renewable biomass resources, including castor oil and cellulose, present promising avenues for sustainable polymer synthesis. This study involved the fabrication of a novel waterborne polyurethane utilizing cellulose nanofibers (CNFs) as a Pickering emulsion stabilizer and castor oil as a bio-derived polyol. Two different CNFs assessed the function of CNFs in stabilizing castor-oil-derived waterborne polyurethane emulsions by the ratio, their concentration and the emulsion storage duration. Dynamic light scattering and rheological assessments established that CNFs significantly enhanced emulsion stability by forming a semi-flexible network, which impeded droplet coalescence. Moreover, the incorporation of CNFs improved the mechanical performance of castor-oil-derived waterborne polyurethane films. Specifically, the addition of 1 wt% of the longer CNF resulted in an increase in the tensile strength and Young's modulus to 21.2 MPa and 91.0 MPa, respectively, signifying improvements of 103.0% and 256.6% over the CNF-free control. This investigation underscores the synergistic potential of biomass-derived nanomaterials in the design of high-performance, environmentally friendly polymers. © 2025 Society of Chemical Industry.
研究领域:
高分子科学
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材料工程
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纳米技术
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绿色化学
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产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
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2024
·
IF 2.9
Guoqiang Wang,Xiang Chi
Poly[(3-hydroxybutyrate)- co -(4-hydroxybutyrate)] (P34HB), poly[(butylene succinate)- co -(butylene furandicarboxylate)] (PBSF) and poly(vinyl acetate) (PVAc) were melt-blended to prepare P34HB/PBSF/PVAc blends with improved ductility. The thermal properties, mechanical properties, rheological properties and morphology of the blends were systematically studied. The addition of PBSF promoted the melt crystallization of P34HB. The temperatures at 5% weight loss of the blends were higher than that of P34HB. The surface of the blends was investigated using scanning electron microscopy. The surface of P34HB was very smooth, but the surfaces of the blends were rough. PVAc can increase the compatibility between P34HB and PBSF. Compared with P34HB, the elongation at break of the blends was increased to 219.1%. © 2024 Society of Industrial Chemistry.
研究领域:
材料科学
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高分子化学
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生物质工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
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2024
·
IF 2.9
Fang Wu,Xinfei Zhang,Qi Wang,Dayang Yu,Pan Zheng,Rongli Zhu,Xu Wang,Zejun Pu,Jiachun Zhong
In order to expand the application of biobased polycarbonate in optical components, a series of isosorbide polycarbonate (PICC)/rare earth ion complex fluorescent composites were prepared by using PICC as a macromolecular ligand and Eu 3+ and Tb 3+ as rare earth luminescence centers. The coordination system between rare earth ions and PICC was investigated by Fourier transform infrared spectroscopy, DSC and TGA. On adjusting the ratio of Eu 3+ and Tb 3+ , a PICC/rare earth ion composite with adjustable fluorescence color was obtained. Also, the thermal, mechanical and optical properties of a series of PICC/rare earth ion fluorescent films with different ratios were tested. A transparent fluorescent composite material with excellent mechanical properties and tunable fluorescent colors has been prepared. © 2024 Society of Industrial Chemistry.
研究领域:
材料科学
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光学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
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2024
·
IF 2.9
Wangui Peng,Weihong Huang,Minmin Gao,Wenming Yang,Wanzhen Xu
Sulfamethymidine, a sulfonamide commonly employed, is introduced into the human body through the food chain, posing a threat to human health. Consequently, the development of a rapid and efficient detection technique becomes imperative. In this investigation, a photoresponsive sulfamemethyridiazine imprinted polymer was synthesized to etch a silicon core, thereby effectively addressing the limitations encountered with conventional molecularly imprinted polymers, including diminished binding capacity, restricted site accessibility, and sluggish binding kinetics. The photosensitive monomer utilized in the molecularly imprinted polymers (MIPs) is 5[(4 (methylacryloxy) phenyl) diazene] mphthalic acid, which exhibits a stimulating reaction mechanism. The N=N bond undergoes photoisomerization, transitioning between trans and cis configurations. The adsorption experiment provides additional evidence that the hollow molecularly imprinted polymers exhibit a higher adsorption capacity, achieving a value of 0.192 mmol L −1 . The experiments conducted to assess selectivity and repeatability confirm that the photoresponsive MIPs exhibit a high level of selectivity and favorable repeatability. Following four cycles, the adsorption rate consistently remains at 64.3%. After undergoing four cycles, the adsorption rate remains consistently at 64.3%. Additionally, the recoveries of the actual samples ranged from 95.6% to 99.7%. This finding presents a novel approach to detecting the concentration of trace pollutants in intricate substrates. This article is protected by copyright. All rights reserved.
研究领域:
分析化学
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环境科学
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药学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
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2024
·
IF 2.9
Xiran Shen,Tiantian Wei,Di Liu,Kang Yang,Yangang Jiang,Jianwei Lu,Li Guo
Amphiphilic block copolymers are characterized by the presence of distinct hydrophilic and hydrophobic regions, which are usually arranged in alternating blocks. This unique structure allows these copolymers to self-assemble into well-defined nanostructures that exhibit remarkable resistance to enzymatic hydrolysis, high biocompatibility and the ability to be customized with specific structures. These properties make them highly desirable in various applications. Self-assembled amphiphilic polypeptoids are currently under development as a promising class of pharmaceutical agents. However, the utilization of these peptides as drug carriers for efficient delivery presents a number of challenges. These challenges include less-than-optimal loading efficacy and restricted biocompatibility. Herein, a series of stable amphiphilic block copolypeptoids (PNEG-b-PNBG and PNEG-b-PNHG) were designed and synthesized by controlled ring-opening polymerization. PNEG chain segments provide hydrophilicity, while PNBG and PNHG chain segments provide hydrophobicity. The hydrophobic molecular chains aggregate in aqueous solutions, resulting in the formation of nano-assemblies. The self-assembled amphiphilic block polypeptoid copolymers were investigated. The morphologies of copolymers take the form of micelles from tens of nanometers to a few hundred nanometers. The properties of amphiphilic block copolypeptoids used as drug carriers were further investigated by conducting drug release and cytotoxicity tests. The results indicate that the cumulative release efficiency of self-assembled polypeptoid copolymers can reach up to about 91%. And they have good biocompatibility and can be expected to be safe materials for efficient drug delivery. This work could provide a facile method for the preparation of amphiphilic block peptoid copolymers for biopharmaceutical applications. © 2024 Society of Industrial Chemistry.
研究领域:
材料科学
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药学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
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2024
·
IF 2.9
Yong Yang,Jing Shen,Erxun Hu,Yajin Fang,Zhibo Xu,Juan Li
Poly(lactic acid) (PLA) is known as one of the most promising biodegradable polyesters, while inherent brittleness and insufficient gas barrier performance limit its potential application as a film material. Herein, poly[(butylene diglycolate)- co -furandicarboxylate] (PBDF) with excellent flexibility and good gas barrier properties was synthesized and then melt-blended with PLA. Compared with neat PLA, the elongation at break of the PLA/PBDF20 blend increased more than 40 times and reached over 176.7%. In addition, its O 2 , CO 2 and H 2 O permeability coefficients decreased by 21.3%, 50.8% and 46.3%, respectively. Moreover, the PLA/PBDF20 blend also exhibited better biodegradability, with a weight loss rate increasing from 2.7% of neat PLA to 19.0% after 5 weeks of composting. Notably, incorporation of a multifunctional epoxy compatibilizer (Joncryl ADR®-4368) into the PLA/PBDF blends further enhanced their toughness and gas barrier performance, which could be attributed to the improvement of the miscibility between PLA and PBDF. © 2024 Society of Chemical Industry.
研究领域:
材料科学
·
环境科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
·
2024
·
IF 2.9
Qiunan Xie,Xiaohan Li,Jieying Lin,Feiyu Zhu,Jingcheng Liu,Xiaojie Li,Wei Wei
Although epoxy resin (EP) has been widely used in many fields, it is still urgent to effectively improve its flame retardancy by halogen-free strategies. Herein, a silicon-containing cyclotriphosphazene derivative (HEP-Si) was synthesized by nucleophilic substitution and silicon–hydrogen addition reaction using eugenol, hexachlorophosphazene and triethylsilane as raw materials. Then it served as a halogen-free flame retardant for an EP/4,4′-diaminodiphenylmethane system, and its performance was compared with that of commercial flame retardant hexaphenoxycyclotriphosphazene (HPP). The results showed that although the initial thermal decomposition temperature ( T 5% ) of the cured products of EP/HEP-Si was slightly lower than that of pure EP, T 5% did not decrease further as the amount of HEP-Si increased, indicating that good thermal stability was maintained. In addition, the char yield of the cured products of EP/HEP-Si was significantly increased (more than 20 wt%) compared to that of pure EP. The cured EP with the addition of HPP and HEP-Si both achieved a V-0 rating in UL-94 vertical burning test at 0.5 wt% phosphorus content, while the limiting oxygen index of the EP/HEP-Si system was higher, reaching 33.2%. From cone calorimetric test results, the peak heat release rate, total heat release and total smoke production of the cured products of EP/HEP-Si decreased by 61.5%, 37.1% and 26.2%, respectively, compared with that of pure EP. The cured EP/HEP-Si materials also exhibited good thermomechanical and mechanical properties. Therefore, HEP-Si is suggested to be a promising P/N/Si-containing halogen-free flame retardant for EP. © 2024 Society of Industrial Chemistry.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
·
2025
·
IF 3.6
Qiunan Xie,Ming Huang,Zhenzhen Li,Wei Hu,Jingcheng Liu,Xiaojie Li,Wei Wei
Improving the flame retardancy of epoxy thermosets without sacrificing mechanical properties, thermal decomposition stability and glass transition temperature ( T g ) remains a challenge. In this study, a novel halogen-free flame retardant containing phosphorus/nitrogen (N 3 P 3 -DI) was synthesized from cyclotriphosphazene, p -hydroxybenzaldehyde, itaconic anhydride and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). Subsequently, N 3 P 3 -DI was used for flame-retardant modification of epoxy resin (EP). After the introduction of 10 wt% N 3 P 3 -DI, the EP thermoset achieved a limiting oxygen index of 29.6% and UL-94 V-0 rating. The peak heat release rate and total smoke production of the N 3 P 3 -DI-modified EP thermosets decreased by 48.4% and 27.5%, respectively, compared to those of the pure EP thermoset. Furthermore, the flame retardancy effect of N 3 P 3 -DI was confirmed by analysis of pyrolysis volatiles and the residual char of the thermoset. Compared with the pure EP thermoset, the N 3 P 3 -DI-modified EP thermoset also exhibited an increase of both the impact strength and flexural strength by 46.3% and 31.2%, respectively, demonstrating the effect of simultaneous toughening and strengthening. This is mainly due to the introduction of N 3 P 3 -DI reducing the crosslinking density of the thermoset network and increasing the free volume, while also improving the rigidity of the network chain. In addition, the modified EP thermosets still maintained high levels of T g and thermal decomposition temperature. Therefore, this study provides an attractive strategy to simultaneously improve the flame retardancy, toughness and strength of epoxy thermosets, showing great prospects for future advanced applications in composites. © 2025 Society of Chemical Industry.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
·
2025
·
IF 3.6
Jinglei Xing,Lei Yang,Tianci Ma,Guofei Chen
With the rapid development of flexible optoelectronic devices, colorless polyimide films with excellent comprehensive performance have received widespread attention. In this work, a series of poly(amide-imide)s (PAIs) were synthesized by copolymerization of 4,4′-(hexafluoroisopropylidene)diphthalic anhydride, 1,4-cyclohexanedicarbonyl chloride (CHDC) and 2,2′-bis(trifluoromethyl)benzidine. The thermal dimensional stability and mechanical properties of the PAI films were improved due to the introduction of rigid rod-like amide bonds in the polymer chain. In addition, the PAIs with more trans -CHDC content showed higher glass transition temperature ( T g ) and lower coefficient of thermal expansion (CTE). At the same time, the cooperative conformational transitions of cyclohexane rings in trans -CHDC promoted molecular chain slip and improved the film toughness. Moreover, with the introduction of the cyclohexane moiety, these PAIs had excellent optical transparency and solubility. In particular, PAI-6 exhibited high T g of 364 °C, low CTE of 29.8 ppm K −1 , high transmittance of 87% at 400 nm, tensile modulus of 3.6 GPa and elongation at break of 9.7%. Therefore, the incorporation of cyclohexane structures and amide bonds into the main chain through copolymerization with CHDC provided a simple method for the synthesis of tough colorless PAIs with excellent comprehensive properties. © 2025 Society of Chemical Industry.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
·
2024
·
IF 2.9
Hui Li,Hao Wu,Chao Wang,Jing Zheng
Thermoplastic elastomers are rubber-like in their elasticity, plastic-like in their ease of processing and recyclable. Styrene–butadiene–styrene (SBS) block copolymer is the world's most consumed thermoplastic elastomer. However, because of the carbon–carbon double bonds in its molecular structure, SBS exhibits poor thermal oxidation stability, which significantly limits the service lifetime and reliability of SBS. Here, we dramatically improve the thermal oxidation stability of SBS by incorporating graphene (GE) into the layered structure of SBS, which is attributed to GE's capacity to function as a gas barrier and scavenge free radicals. Compared with pure SBS, the oxidation induction time of SBS/GE nanocomposites can be increased by up to 225 times. This thermoplastic elastomer has potential in applications related to medical supplies, sports equipment, home appliances and automated office equipment. © 2024 Society of Industrial Chemistry.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）