JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·Vol. 142
·期 20
·e56887
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IF 2.8
Lei Zhang,Yilin Wang,Weixia Zhou,Dan He,Yiming Xiao,Haoran Chen,Na Tang
Conventional gas separation membranes are mostly aimed at improving the permeability and selectivity of membranes. However, the actual application environment is complex and changeable, and the failure of the material is a common problem in the use process. Fluorinated polyurethane acrylate was synthesized via the fluorinated unit alcohol end-capping approach to enhance the antioxidant capacity of gas separation membranes. The fluorine element is used as an important part of the membrane structure, and then the antioxidant capacity of the membrane is enhanced. Specifically, hexamethylene diisocyanate isocyanurate (HDI) trimer and 1H, 1H, 2H, 2H-Tridecafluorooctanol (TFOA) were precisely metered and underwent an addition reaction. Subsequently, two molecules of the resulting addition products were connected to a molecule of 1,6-hexanediol (HDO). This was followed by a nucleophilic addition reaction between hydroxyethyl methacrylate and the fluorine-rich molecular formula, yielding fluorinated polyurethane acrylate (FPUA). To fabricate the gas separation membrane, photoinitiators were incorporated into the FPUA, followed by curing under UV irradiation. Under optimized conditions, the membrane exhibited exceptional performance in CO 2 /SF 6 separation, achieving a gas selectivity of 126.11. The presence of abundant carbon, fluorine, and oxygen atoms in the separation layer significantly bolstered its antioxidant properties. After immersion in a 1 g/L NaClO solution for 7 days, the membrane exhibited minimal corrosion loss of only 1.5% ± 1.3%, and the water contact angle decreased by just 1.8°. This robust membrane material offers promise for the separation of mixed gases containing oxidizing components.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Jiayu Lin,Yongbo Hou,Lailong Ding,Yifan Wang,Jinhu Hu,Peisong Dong,Qin Wang,Mingliang Ma
Polyurea (PUA) is widely used as a coating in construction, tunnels, bridges, and other fields because of its excellent performance. However, its combustion emits toxic gases and smoke, hindering escape and posing potential fatality risks. Enhancing the flame retardancy of PUA is crucial for safety and expanding its applications. The synthesis of two-dimensional FePP nanosheets was reported in this paper, employing the solvothermal method, followed by the sequential growth of MoS 2 and Ni-MOF to establish a multilayer composite structure. The elemental composition and morphology of the synthesized FePP@MoS 2 @Ni-MOF flame retardants were characterized and analyzed. The flame retardant properties of polyurea composites with varying amounts of FePP@MoS 2 @Ni-MOF were investigated using Cone calorimeter tests. The results showed that the prepared flame retardant had good thermal stability and significantly improved fire safety properties. The PUA/FePP@MoS 2 @Ni-MOF 3.0 composite exhibited notable improvements compared to pure PUA. Specifically, the peak heat release rate, total heat release rate and peak smoke production rate were reduced by 39.76%, 29.33% and 17.86%, respectively, while total smoke production and total CO production (COP) were reduced by 21.30% and 54.47%. This study provides new insights and experimental basis for the technological development of novel flame retardant coating materials.
研究领域:
材料科学
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化学工程
·
火灾安全科学
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 47
·e56261
·
IF 2.7
Jiayu Lin,Yongbo Hou,Lailong Ding,Yifan Wang,Jinhu Hu,Xishun Qiu,Chao Wu,Mingliang Ma,Wei Gao
Metal–organic frameworks (MOFs) have garnered significant attention in recent years due to their potential application in flame-retardant polymeric materials. In this work, Fe 2 O 3 /ZnFe 2 O 4 /g-C 3 N 4 @ZIF-8 flame retardants were synthesized via solvothermal and calcination techniques, and their elemental composition and morphologies were thoroughly characterized. The flame retardancy of polyurea (PUA) composites incorporating varying dosages of these flame retardants was evaluated using cone calorimetry tests (CCT). The findings demonstrate that the incorporation of Fe 2 O 3 /ZnFe 2 O 4 /g-C 3 N 4 @ZIF-8 significantly enhanced the flame retardant properties of PUA composites. With the addition of 3 wt% of the flame retardant, the peak heat release rate (PHRR), total heat release (THR), total smoke production (TSP), and total CO yield (TCO) of the PUA composites decreased to 890.82 kW/m 2 , 131.34 MJ/m 2 , 12.30 m 2 , and 2.39 g, respectively, reflecting reductions of 33.59%, 18.59%, 29.40%, and 47.93% compared with pure PUA. The flame-retardant mechanism was systematically analyzed in both the condensed and gas phases. This study provides a robust experimental foundation and novel insights that contribute to the development of advanced flame-retardant coating materials.
研究领域:
材料科学
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阻燃技术
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聚合物工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Wenjin Wang,Chuanjiang Zhou,Jiangping Guo,Yijia Yu,Wenjuan Xia,Zhaoqiang Wu,Hong Chen
With the demand for the development of lipid–polymer conjugates (LPCs) for biomedical applications, the development of novel, rapid, and efficient methods for the synthesis of LPCs is of great significance. In this study, a novel Y-type photoinitiator (Lipid-PI) containing a diacylglycerol group was first synthesized, and then the polymerization of conjugated vinyl monomers such as oligoethylene glycol methyl ether methacrylate (OEGMA) and N,N -dimethylacrylamide could be rapidly initiated by the Lipid-PI initiator under Mn 2 (CO) 10 and visible light radiation at room temperature to efficiently prepare LPCs. The 1 H-NMR results revealed that the diacylglycerol moiety resided at the terminal position of the LPCs molecular chain. Through dynamic light scattering and transmission electron microscopy techniques, it was found that the Lipid-POF (POF is defined as poly(OEGMA- co -FluMA)) prepared from OEGMA monomers can self-assemble into spherical micelles with a particle size of approximately 80 nm in pure water. Furthermore, the in vitro bioassay results illustrate that the prepared Lipid-POF not only can successfully modify the L929 cell surface but also has good biocompatibility. Overall, this study not only provides a fast and efficient method for synthesizing LPCs but also has broad application potential in the biomedical field.
研究领域:
生物材料学
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合成化学
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生物医药工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 14
·e55186
·
IF 2.7
Yong Wang,Liang Wen,Jiajian Liu,Chuncheng Li,Tian Yin,Yaonan Xiao,Zhikui Jiang,Shaohua Wu,Zijian Zhang,Bo Zhang
Bio-based copolymers with excellent mechanical properties and biodegradability are highly desired for packaging and agricultural applications. In this work, a series of high molecular weight bio-based poly(ester-carbonate)s are synthesized using glycolic acid (GA), dimethyl carbonate (DMC), and 1,4-butanediol (BDO). The intrinsic viscosity ([ η ]) of these copolymers ranges from 0.70 to 1.11 dL/g. The tensile strength, elastic modulus, and elongation at break of PBCGA10 are 19.69 ± 2.40 MPa, 151.20 ± 37.17 MPa, and 1173 ± 142%, respectively, which are superior to the mechanical properties of PBAT. The degradation weight loss of PBCGA10 and PBCGA20 after 30 days can reach 8% and 40%, respectively, indicating excellent degradation performance of the copolymers. Moreover, copolymers undergo degradation through a surface degradation mechanism. The main products of copolymer degradation are BDO, CO 2 , and H 2 O, which do not cause harm to organisms and the environment.
研究领域:
材料科学
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环境科学
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 23
·e55477
·
IF 2.7
Zhenhua Lu,Chuncheng Pan,Yong Hou,Zhaobin Zhang,Jiakuan Fu,Peng Li
Polyether polyols can improve the performance of waterborne epoxy curing agent. In this paper, intermediates were synthesized from polyether triols with epoxy resin E-51 and introduced into the epoxy curing agent by reacting with TETA. This paper focuses on the process of synthesizing the intermediates. The 2K waterborne epoxy coating film prepared with polyether triols-modified waterborne epoxy curing agent exhibits desirable corrosion protection capacity and neutral salt spray resistance up to 600 h. In addition, the 2K waterborne epoxy coating film prepared using the modified waterborne epoxy curing agent with polyether triols displayed improved surface appearance, mechanical properties, and water resistance.
研究领域:
材料科学
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化学工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Wanjing Zhang,Yuqi Shan,Liyan Wang,Yanming Chen,Liying Guo,Yunsheng Chong,Xin Qian
Currently, mainstream phthalate plasticizers pose serious threats to the environment and human health. As an eco-friendly and harmless alternative, polyester plasticizers have garnered widespread attention. However, their complex preparation process and low plasticizing efficiency have limited their practical application. In this study, a series of copolyester plasticizers (POMAZ), synthesized from azelaic acid, octanediol, and various contents of 2-methyl-1,3-propanediol (MPO), were prepared via direct esterification. The preparation process is controllable, and the number-average molecular weight of POMAZ ranges from 1000 to 4000, with a thermal degradation temperature above 270°C, demonstrating excellent thermal stability. PVC samples plasticized with POMAZ showed a decrease in glass transition temperature to −30°C and increased hydrophilicity with higher MPO content. Measurements of the tensile elongation at break of plasticized PVC verified the outstanding plasticizing performance of the POMAZ series. Specifically, POMAZ-45/PVC exhibited an elongation at break of up to 975.3%, with a plasticizing efficiency reaching 273.2%.
研究领域:
材料科学
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环境科学
·
高分子化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yuhao Yang,Zejun Pu,Jiachun Zhong,Chihan Meng,Qiuxia Peng,Dayang Yu,Pan Zheng
PA6T is one of the most typical high-temperature resistant polyamides, which is widely used in military, transportation and communication fields. As an engineering plastic, thermal stability is a very important point, although there are many studies on copolyamide PA6T, but the in-depth analysis of its heat resistance and thermal degradation process is rarely studied. Therefore, two copolyamides, PA6T/66 and PA6T/610, were synthesized by high temperature and high pressure solution polycondensation method, and their thermal degradation processes and kinetic mechanisms were analyzed in depth. Firstly, the structure and composition of both were characterized by Fourier transform infrared spectroscopy (FTIR) and hydrogen nuclear magnetic resonance spectroscopy ( 1 H NMR). The results showed that copolyamide was synthesized successfully. Thermogravimetric analysis (TGA) and thermogravimetric infrared comprehensive analysis (TG-IR) were used to analyze the heat resistance and degradation products of the two copolyamides PA6T. The results of TGA showed that the initial decomposition temperature of the two copolyamides was about 400°C, and the temperature of PA6T/610 was slightly higher. TG-IR results showed that both copolyamides maintained good thermal stability before 350°C, without the generation of degradation products and their corresponding obvious characteristic absorption peaks. Thermal decomposition products increased significantly at about 400°C, and gradually became complete after 450°C. By comparing the Kissinger method, Flynn-Wall-Ozawa method (FWO), and Coats-Redfern method (CR), the thermal degradation activation energy and kinetic reaction mechanism of the two copolyamides were obtained.
研究领域:
材料科学
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高分子化学
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2024
·Vol. 141
·期 29
·e55654
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IF 2.7
Yu Zhuang,Jiangyu Luo,Xiaojun Duan,Yanan Zhu,Jinqing Qu
The bio-based hydrophilic monoglycerol succinate was synthesized and reacted with bio-based raw materials including polyols, pentamethylene diisocyanate, 1,4-butanediol, to prepare the waterborne polyurethane acrylate (Bio-WPUA) emulsions with high bio-based content. The effect of bio-based polyol categories including poly(trimethylene ether glycol), poly(tetrahydrofuran), and castor oil on the properties of Bio-WPUA and its films were studied. The structure, thermal stability, crystallinity, contact angle, and mechanical properties of Bio-WPUA film were characterized with fourier infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, contact angle analyzer, and mechanical tensile testing. It was found that Bio-WPUA film containing poly(trimethylene ether glycol) as the soft-segmented display good tensile stress, thermal stability, and water resistance with 1.38% of the water absorption rate, while Bio-WPUA containing castor oil polyol as the soft-segmented had good tensile strain and low-temperature film-forming properties with excellent film properties. The bio-carbon content of Bio-WPUA was high up to 40% according to ASTM D6866-22, and possesses good physical mechanical and chemical resistance performance. The results provide theoretical guidance for the synthesis of polyurethane emulsions with bio-based materials instead of petroleum-based materials.
研究领域:
材料科学
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化学工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2024
·
IF 2.7
Wanglong Jia,Yi Liu,Na Han,Liuchun Zheng
Due to the good combined properties, poly(butylene succinate) (PBS) is a biodegradable polymer material with good application potential. Nevertheless, it has the drawback of low melt strength arising from its inherent linear macromolecular structure, which greatly restricts its processing, such as blowing. Multifunctional branching agents can be applied to boost polyester melt strength and improve blowing processability. In this work, the branched PBS was synthesized by introducing various branched agents, such as tartaric acid (TA), citric acid (CA), and pentaerythritol (PER), and their effect on the characteristics was systematically analyzed. Due to the incorporation of branched chains and micro-crosslinking structures, mechanical characteristics and melt strength of polymers have been improved effectively. PBS-PER0.1% exhibited tensile strength and elongation at break as high as 50.71 MPa and 347.92%, respectively. Additionally, crystallinity increases with the increase of PER content, which is opposite to the crystallinity of polymer synthesized from other branching agents. Thus, mechanical properties and rheological properties of PBS can be facilely controlled by regulating the chemical structure and content of branching agent.
研究领域:
材料科学
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高分子化学
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Hongdan Ao,Ling Lin,Di Pu,Xinmin Zhang,Yuanhao Luo,Meirong Wang,Zheng Li,Ren Ren
Oil-based drilling fluid is widely used in deep and ultra-deep well drilling, but long-term use will lead to cutting accumulation and performance degradation and cannot be recycled. In this study, octadecyl acrylate (SA), divinylbenzene (DVB), and cetyl dimethylallyl ammonium chloride (C16-DMAAC) were used as raw materials to synthesize a polymer particle SDCD that can be stably dispersed in the oil–water two-phase in ethanol solution as a waste oil-based drilling fluid flocculant. The structure of SDCD was characterized by FT-IR, 1 HNMR, SEM, XPS, Zeta potential, and particle size distribution, and its flocculation mechanism in waste oil-based drilling fluid was analyzed. The results show that the fine particle size of SDCD makes it easy to disperse in the mud, and the positive potential characteristics make it capable of electrostatic adsorption with kaolin. At the same time, the pore structure can provide a specific surface area to enhance the adsorption. When the dosage of SDCD was 2.5 wt%, the flocculation rate reached 87.66%, the slurry showed good rheology and emulsion stability, and it still met the performance standard after 150°C hot rolling again. In addition, SDCD was successfully applied to waste mud treatment on site, which significantly reduced the solid content and improved the mud performance. This study provides an effective method for the recycling of waste oil-based drilling fluid and helps to reduce drilling costs.
研究领域:
石油工程
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材料科学
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环境工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 33
·e55847
·
IF 2.7
Chao Zhang,Erlei Yu,Heyun Wang,Dong Huang,Guojun Ding,Zhonghua Zhao,Zhong Wei
In response to the health and environmental concerns associated with the plasticizer dioctyl phthalate (DOP), this research explores the utilization of methyl oleate (MO) derived from plant oil, 1,2,4-Benzeneticarboxylic anhydride (TMA) and isobutyric anhydride (IA) as a precursor for synthesizing a hyperbranched polyester named IA-MO-TMA. This polyester serves as an alternative plasticizer for Polyvinyl chloride (PVC). The chemical structure of IA-MO-TMA was thoroughly characterized using Fourier Transform Infrared Spectrometer (FTIR) and nuclear magnetic resonance hydrogen spectra, and its molecular weight was assessed. The PVC film, plasticized with IA-MO-TMA, underwent comprehensive testing using techniques such as differential scanning calorimetry, scanning electron microscopy, and thermogravimetric analysis. Notably, the glass transition temperature ( T g ) of the plasticized PVC film exhibited a significant reduction from 75°C to −6.7°C. The plasticized film demonstrated an elongation at break of 318.1%, a tensile strength of 19.2 MPa, and a plasticizing efficiency of 109.9%. Moreover, the use of IA-MO-TMA as a plasticizer increased the initial decomposition temperature of PVC film from 235.6 to 264.1°C. Additionally, the extraction rate of IA-MO-TMA in petroleum ether was found to be 35.6% lower than that of DOP.
研究领域:
材料科学
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高分子化学
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环境科学
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高影响因子
危险品化学品经营许可证（带存储）