JOURNAL OF APPLIED POLYMER SCIENCE
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2023
·Vol. 140
·期 10
·e53601
·
IF 3
Zengwei Qin,Xiaohui He,Jiang Xu,Jiahao Deng,Xiujing Zang,Guoxiao Yang,Yao Lu,Shaoyu Zou,Liang Huang,Defu Chen
Solid polymer electrolytes (SPEs) have received extensive attention in the realm of lithium-ion batteries due to their safety performance, higher specific capacity and structural designability. In recent years, poly ionic liquids (PILs) have been attracting the attention of many researchers because of their high ionic conductivity, wide electrochemical stability window, high thermal stability and less-flammability in comparison with common liquid electrolytes. We selected imidazole cations as functional groups to be attached to the side chain of the polymer to prepare bis-imidazole functionalized benzo-norbornadiene monomer, which copolymerized with epoxy-functionalized norbornene monomer and norbornene (NB) monomer to obtain triblock copolymer. The prepared triblock copolymer was blended with lithium salt (LiTFSI) to obtain a solid polymer electrolyte membrane (SPEM). SPEM achieved an excellent ionic conductivity of 3.1 × 10 −5 S cm −1 at 30°C, exhibited an electrochemical stability window of up to 4.3 V versus Li/Li + (25°C) and thermal stability up to 275°C under protective (N 2 ) atmosphere. The NCM811/SPEM/Li batteries have exhibited a first discharging capacity of 149.1 mAh g −1 at 0.1 C-rate and the discharge capacity kept 141.6 mAh g −1 at 0.2 C-rate after 50 charge and discharge cycles at 30°C.
研究领域:
材料科学
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能源存储
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 139
·期 38
·e52918
·
IF 3.057
Yukun Tian,Yongzhi Hong,Yunlong Wang,Yuan Tian,Zhihao Wang,Meixing Ai,Jun Ma
The emerging stretchable and tough hydrogels find their extraordinary contributions in widespread use. However, the applicability of existing tough hydrogels in harsh environments like highly acidic stomachs has remained a challenge. Here, we develop superior stretchable and tough P(AA -co- AAm)/SiO 2 hybrid hydrogels through radiation-induced polymerization and crosslinking in the presence of acids. The performance of the nanocomposite gels was optimized by altering fabrication variables including acid concentration, monomer composition and absorbed dose. The mechanic tests show that the protonated hybrid hydrogels displayed a high elongation at break (1919%), fracture strength (117 kPa), and compressive strength at 50% strain (126 kPa). These values are superior to those of conventional polyelectrolyte hydrogels and expect to significantly broaden the application. The proposed strategy is quite general and offers an alternative strategy to develop tough hydrogels.
研究领域:
材料科学
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高分子化学
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生物医学工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 16
·47415
·
IF 1.901
Lei Xie,Liumei Zhou,Lu Li,Xinan Xie,Yan Li
Deltamethrin (DM) is one of the most efficient pyrethroid insecticides, which is widely applied to the control of insect pests in tea. In this work, efficient molecularly imprinted polymers (MIPs) were synthesized using DM as the template and acrylamide as the functional monomer, in conjunction with two-step seed swelling polymerization. Scanning electron microscopy, Fourier transform infrared spectroscopy, and Brunauer–Emmett–Teller surface area analysis confirmed the staggered pore structure and the presence of binding site in DM MIPs. The adsorption properties of the DM MIPs were also investigated based on assessing equilibrium adsorption as well as kinetic modeling and solid-phase extraction. Isothermal equilibrium adsorption experiments show that the adsorption behavior is consistent with the Freundlich and Halsey models, indicating heterogeneous multilayer specific adsorption. Fitting of the kinetic data demonstrates that chemical adsorption could be the rate-limiting step in DM extraction, which is consistent with a pseudo-second-order kinetic model. Using the imprinted polymers as solid-phase extraction filler, the DM recoveries from various teas were greater than 80% and exceeded those of the structural analogs cypermethrin, lambda-cyhalothrin, and bifenthrin. These results confirm that the MIPs exhibit specific adsorption of this analyte. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47415.
研究领域:
分析化学
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农药残留检测
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高分子材料
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分离科学
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食品安全
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 138
·期 1
·49612
·
IF 2.52
Jianbing Cui,Bo Mu,Baoping Yang,Jinfeng Cui,Junhong Guo,Li Tian,Xia Wang
Self-lubricating composite with stimuli-responsive properties attracts great interest in recent years. Herein, mesoporous silica (MS) as oil-laden containers is explored to achieve self-lubricating feature. The as-prepared MS possesses a high Brunauer-Emmett-Teller (BET) surface area (1,542.35 m 2 /g), which satisfies the criterion for construction of ideal repository for storing enough liquid lubricants. In addition, the thermal stimuli-responsiveness behavior of the oil-laden mesoporous silica (OMS) for lubrication has been investigated by thermogravimetric analyzer tester. As expected, an excellent tribological performance (friction coefficient and wear rate decreased by 63.29 and 82.63%) is obtained by adding 10 wt% OMS into the polyurathene matrix, showing great promise for self-lubricating application.
研究领域:
材料科学
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高分子材料
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摩擦学
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功能材料
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智能响应材料
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 133
·期 39
·
IF 1.866
Sha Liu,Jianxin Zong,Zhen Wei,Hang Zhang,Ligai Bai,Haiyan Liu,Hongyuan Yan
An ionic liquid (IL)-based monolithic poly(ionic liquid glycidylmethacrylate- co -ethylene glycol dimethacrylate) column was prepared via in situ free-radical polymerization with 1-vinyl-3-butylimidazolium chlorine as one of the comonomers. The obtained monolithic column was used as the sorbent of solid-phase extraction (SPE) and coupled with high-performance liquid chromatography for the simultaneous determination of the macrolide antibiotics roxithromycin (ROX) and acetylspiramycin (ACE) in processed pure milk. The monolithic column was characterized by Fourier transform infrared spectrometry, scanning electron microscopy, nitrogen absorption–desorption, mercury intrusion porosimetry, and thermogravimetric analysis. The results reveal that the monolithic column exhibited a high selectivity and good permeability to the macrolide antibiotics in milk. The optimized method offered excellent linearity with a linear regression coefficient greater than 0.998. The precisions for interday and intraday were both less than 7.7%. The accuracies expressed by the recoveries for ROX and ACE were in the ranges 92.5–103.8 and 93.0–107.6%, respectively. Compared to the previous methods, this method had a low limit of detection and a good accuracy. As a result, the polymer IL based monolithic column could feasibly be used as a high-selectivity online SPE sorbent for determining trace macrolide antibiotics in milk. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43943.
研究领域:
药物分析
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食品安全
·
色谱技术
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分子印迹
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药物残留检测
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2012
·Vol. 127
·期 6
·4251-4255
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IF 1.289
Wentao Liu,Hongdong Duan,Xia Meng,Dawei Qin,Xingjian Wang,Juan Zhang
A series of macroporous beaded terpolymers with epoxy groups were synthesized by suspension polymerization with glycidyl methacrylate (GMA), ethylene glycol dimethacrylate (EGDMA), and the third monomers including styrene, methyl methacrylate, n -butyl acrylate (BA), butyl methacrylate (BMA), and 2-hydroxyethyl methacrylate for immobilization of Candida lipolytica lipase. The effect of various third monomers on loading and activity recovery of immobilized lipase were studied. Terpolymers with BA as the third monomer were found to give the biggest loading of lipase, and the activity recovery of lipase immobilized on poly(GMA-EGDMA-BA) terpolymers reached 79.0%. As the content of BA (%) increasing, the loading of lipase enhanced, but the activity recovery reached 88.5% for the initial stage and decreased to 46.9% at last. The poly(GMA-EGDMA-BA-10) showed an optimal result in lipase immobilization. Lipase immobilized on poly(GMA-EGDMA-BA-10) carriers had broader pH and higher temperature stability. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
研究领域:
生物化学
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高分子科学
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酶工程
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生物催化
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材料化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 138
·期 10
·49987
·
IF 2.52
Jiwei Chen,Zhaokun Yang,Dongjian Shi,Tianyang Zhou,Daisaku Kaneko,Mingqing Chen
The weak mechanical properties of hydrogels, especially physically cross-linked hydrogels are usually a major factor to hinder their application. To solve this problem, in this work, we prepared a high strength and toughness of double physically cross-linked (PDN) hydrogels composed of crystalline domain cross-linked polyvinyl alcohol (PVA) and Ca 2+ -cross-linked alginate (Alg). With a further annealing treatment, the noncovalent cross-linked network via the formed crystalline promote the as-prepared PDN PVA/Alg hydrogel to exhibit well mechanical properties with the tensile strength of ~1.94 MPa, elongation at break of ~607% and Young's modulus of ~0.45 MPa (above 70 wt% of water content). By analyzing the mechanism of improving the hydrogel mechanical properties, it is found that annealing can effectively improve the crystallinity of PVA in the hydrogel, and then greatly improve the mechanical properties of the hydrogel. This provides a general method for improving the mechanical properties of PVA PDN hydrogels. In addition, the PDN PVA/Alg hydrogel was also proved to have good ionic conductivity of 1.70 S m −1 . These desirable properties make the prepared physically cross-linked hydrogels promising materials for medical and biosensing fields.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2014
·Vol. 131
·期 17
·
IF 1.64
Cuijia Duan,Guodong Kang,Dandan Liu,Lina Wang,Can Jiang,Yiming Cao,Quan Yuan
Metal organic frameworks (MOFs) are supposed to be ideal additives for mixed matrix membranes (MMMs). In this article one kind of MOFs, Cu 3 (BTC) 2 , is synthesized, then directly incorporated into a model polymer (Ultem®1000) using N,N-dimethylacetamide as solvent. Cu 3 (BTC) 2 particles are uniformly dispersed and there are no interfacial defects in the prepared MMMs when Cu 3 (BTC) 2 loading is not more than 35 wt %, seen in SEM images. Pure gas permeation tests show that gas permeability increases obviously with Cu 3 (BTC) 2 loading increase, while ideal selectivities of CO 2 /N 2 and CO 2 /CH 4 are almost unchanged. For MMM with the best separation property, CO 2 permeability increases about 2.6 times and CO 2 /N 2 selectivity remains almost unchanged. Results about gas diffusivity and solubility indicate that gas diffusivity and solubility make contribution to gas permeability increase at the same time but in different ways. Gas permeation properties of MMMs are well predicted by Maxwell or Bruggeman model. © 2014 The Authors Journal of Applied Polymer Science Published by Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40719.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 13
·47290
·
IF 1.901
Bo Zhang,Chen Xu,Guoyue Xu,Chuyang Liu,Jianchao Zhang,Tengchao Guo,Honghan Bu
An IR electrochromic film constructed by copolymer of aniline and o -nitroaniline has been successfully prepared by cyclic voltammetry. The effects of polymerization of aniline and o -nitroaniline on electrochromic properties and optical properties were investigated by cyclic voltammetry, scanning electron microscopy, FTIR spectrometer, and UV–vis spectrophotometer. The results indicate that the film can exhibit three colors (apple green, dark green, and dark blue) at different voltages of −0.1, 0, and 0.8 V. Simultaneously, a fast response time (1.89 and 4.47 s), a high coloration efficiency, a significant optical modulation (60% between −0.1 and 0.8 V) and a large average emissivity range (Δ ε max = 0.203) are achieved for the new film. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47290.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 132
·期 20
·
IF 1.768
Lili Zhao,Haixiang Sun,Namhoon Kim,Joonghee Lee,Ying Kong,Peng Li
Different types of ultrathin multilayer composite membranes adsorbed on polyethylene terephthalate (PET) substrates are fabricated by the layer-by-layer (LBL) self-assembly technique. The hydrogen gas barrier performances of these membranes are measured using a pressure permeation instrument. Polyethylenimines/graphene oxide (PEI/GO) are chosen as the optimal system; the multilayer film reduces the hydrogen transmission rate of the uncoated PET film from 1357 to 24 cm 3 /(m 2 24 h 0.1 MPa). The membrane assembly process for the PEI/GO system is analyzed with UV–Visible spectroscopy, and the flat morphology of the ultrathin film is observed by scanning electron and atomic force microscopies. Moreover, in order to fully characterize the PEI/GO multilayer film system, we investigate the effects of multiple variables on the hydrogen resistance performance. These include the molecular weight of PEI, concentrations of PEI and GO, number of bilayers, soaking time, and drying methods. The film thickness is found to increase linearly during the LBL assembly process. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41973.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2013
·Vol. 130
·期 6
·4113-4118
·
IF 1.395
Fan Kong,Buwei Tang,Xueqin Zhang,Baoping Lin,Teng Qiu
We have investigated the optical properties of a synthesized polymer containing perylene tetracarboxylic diimide (PDI) in different solvents. The structured absorption and photoluminescence (PL) spectra of the PDI in the polymer are sensitive to the solvents. The excited states with the PL peaks at 530 and 570 nm have the same PL excitation bands and life times, but the PL excitation band of the 625 nm excited states with long life time is different from the others. The PL bands with the peaks at 530 and 570 nm originate from the separated PDIs, whereas the 625 nm emission band is connected with the π–π stacked aggregates of the PDI in the polymer. The polymer chains become coiled to be favor of forming the π–π stacked aggregates of the PDI in weak polar solvent. The experimental results indicate that more π–π stacked aggregates are formed in tetrahydrofuran/ethanol blend solvents due to the collapsed polymer chains, but the PL intensity of the aggregates is precipitately decreased with the increase in the content of ethanol due to concentration quenching. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4113–4118, 2013
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2017
·Vol. 134
·期 43
·45331
·
IF 1.86
Bo Mu,Xin Li,Baoping Yang,Jinfeng Cui,Xia Wang,Junhong Guo,Xuemei Bao,Li Chen
Self-lubricating microcapsules containing methyl silicone oil as core materials, were prepared with poly(melamine-formaldehyde) as shell material by in situ polymerization method. Combining with synergistic effect of the short carbon fibers (SCFs) which were systematically treated by liquid-phase oxidation and chemical grafting, they were simultaneously adopted as reinforcing additives to improve the tribological and mechanical properties of polyurethane materials. The tribological behaviors and mechanical properties of the polyurethane composites have been investigated by a block-on-ring wear tester and electronic universal testing machine, respectively. The results indicate that the friction coefficient and wear rate of polyurethane composites without SCFs significantly decreased with increased self-lubricating microcapsule concentration from 2.5 to 10 wt % due to the release of methyl silicone oil; meanwhile, the polyurethane composites filled with 10 wt % microcapsule and 15 wt % SCFs not only exhibited the lowest friction and wear behaviors, but also improved mechanical strength and thermal stability of polyurethane composites. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45331.
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高影响因子
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