REACTIVE & FUNCTIONAL POLYMERS
·
2020
·
IF 3.333
Aili Wang,Zilin Liu,Lu Xu,Nan Lou,Mengying Li,Lu Liu
This work reveals the synthesis of poly(ionic liquid)s (poly-ILs) with controllable beading network structure. The synthesis route involved the formation of novel surfactant-free ionic liquid microemulsions and the in situ photo-initiated thiol-ene “click” reaction. Notably, the beading size of poly-IL's networks was adjusted by altering the component proportion of the designed surfactant-free ionic liquid microemulsion. To characterize the as-prepared polymers, FTIR , DLS, NMR, TGA, DSC , SEM and UV–vis were used, and the adsorption isotherm/kinetics studies were carried out. The results show that poly-ILs exhibit distinct adsorption selectivity and high adsorption capacity for nonionic dye disperse red (1080 mg/g), and these dye absorption polymers can be easily regenerated and recycled without a significant decrease. Therefore, the designed poly-ILs indicate remarkable potential in the application of dying wastewater treatment.
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
SENSORS AND ACTUATORS B-CHEMICAL
·
2020
·
IF 7.1
Yixia Lu,Jian Hu,Yanbo Zeng,Ying Zhu,Hailong Wang,Xiaoling Lei,Shisi Huang,Longhua Guo,Lei Li
A novel electrochemical sensor for rutin determination based on molecularly imprinted poly (ionic liquid) (MIPIL)/ionic liquid-graphene (IL-GR) modified electrode was developed. MIPIL was synthesized via free radical polymerization using rutin as the template, 1-allyl-3-ethyl imidazolium bromide ([AEIm]Br) as the functional monomer and 1,4-butanediyl-3,3′-bis- l -vinylimidazolium dibromide ([V 2 C 4 (mim) 2 ]Br 2 ) as the cross-linker. The composite of IL-GR as an electrode sensitive element was prepared using carboxymethyl-3-methylimidazolium chloride ([HO 2 CMMIm]Cl) by one-step ultrasound method. Fourier transform infrared spectroscopy and scanning electron microscope were used to characterize IL-GR and MIPIL. The increased surface area and conductivity of IL-GR/GCE improved the sensitivity of rutin sensor. Under the optimum condition, good linearity for rutin analysis by the MIPIL-based sensor was obtained from 0.03 to 1 μM. A low limit of detection for rutin was 0.01 μM (S/N = 3). The MIPIL-based sensor demonstrated superiority on DPV response compared to the imprinted sensors based on traditional cross-linkers. The proposed sensor presented good selectivity for rutin and successfully applied for rutin determination in tablets with RSD of 3.05 % and the average recovery range was 98.3 %.
研究领域:
分析化学
·
材料科学
·
药物分析
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2021
·
IF 6.165
Hongyu Guo,Qi Yu,Yuzhi Xiong,Fafu Yang
The first ionic liquid crystals with circularly polarized luminescence were observed based on diphenylacrylonitrile-imidazole salts bearing chiral alkyl chains. Their ordered spiral hexagonal columnar mesophase with long alkyl chains leaded to the effective chiral transfer and chiroptical amplification, resulting in high luminescence dissymmetry factors.
研究领域:
材料科学
·
光学
·
分子化学
✓ 已验证
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Yidong Xiao,Hedong Chen,Minzhang Li,Qinyu He,Than Zaw Oo,Mono Zaw,Nyein Wink Lwin,Kwun Nam Hui,Min Luo,Danling Tang,Guangguo Ying,Fuming Chen
The solubility feature of redox electrolyte is a key factor to influence the performance of salt removal in redox flow electrode capacitive deionization . Herein, a novel redox flow desalination using ionic liquid (IL) as the eco-friendly solvent is proposed, i.e., 1-ethyl-3-methylimidazolium acetate. The high salt removal rate of 4.82 μg·min −1 ·cm −2 was obtained at the current density of 11 mA·cm −2 . The low energy consumption of 254.12 kJ·mol −1 was achievable in IL, compared with 466.3 kJ·mol −1 in aqueous solution and 317.86 kJ·mol −1 ethanol. In addition, a long-term test with 11 cycles was conducted, and the real seawater was desalinated to a freshwater standard in batch mode. This work is significant for development of low-energy consumption in redox flow desalination via the usage of novel ionic liquids as solvent.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Gels
·
2022
·Vol. 8
·期 8
·476
·
IF 4.432
Chengju Sheng,Xuemei Tan,Qing Huang,Kewen Li,Chao Zhou,Mingming Guo
Wounds, particularly under low-hydration conditions, require more time to repair successfully. Therefore, there is an urgent need to develop wound dressings that can accelerate wound healing. Hydrogels, which can maintain a moist environment around the wound and allow gas to pass through the material, act as antibacterial hydrogels as dressings and have great application value in the treatment of wounds. In addition, wound dressings (hydrogels) containing antibacterial capacity have lasting antibacterial effects and reduce damage to cells. In this work, we firstly synthesized two antibacterial agents: imidazolium poly(ionic liquids) containing sulfhydryl (Imidazole-SH) and ε-Poly(lysine) containing SH (EPL-SH). Then, lysine as a cross-linking agent, by “thiol-ene” click reaction, was mixed with Deferoxamine (DFO) to prepare the antibacterial hydrogels. The in vitro assays showed that the hydrogels could effectively killEscherichia coli(E. coli) andStaphylococcus aureus(S. aureus). In addition, it also could reduce the inflammatory response produced by Lipopolysaccharide (LPS). More importantly, according to the transwell and angiogenesis assays, DFO-incorporated hydrogels promoted the migration and vascular repair of human umbilical vein endothelial cells (HUVECs). All the results revealed that the hydrogels provided new strategies for wound dressings.Keywords:antibacterial hydrogels;imidazolium poly(ionic liquids);vascular repair;anti-inflammatory;deferoxamine
研究领域:
材料科学
·
生物医学工程
·
药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
·
2021
·
IF 4.598
Jingjing Wang,Yuan Liang,Zhenfei Zhang,Chunlin Ye,Yuwei Chen,Peng Wei,Yanping Wang,Yumin Xia
In this study, a kind of polymeric ionic liquid (PIL) was synthesized and used to plasticize common cornstarch to obtain thermoplastic starch (TPS) by mixing the cornstarch and PIL together. The dissolution test of starch by aqueous solution with PIL found that PIL could have strong interaction with starch molecular chains and destroy the particle morphology of original cornstarch to become fragment. X-ray diffractometry (XRD) and fourier transform infrared spectroscopy (FTIR) revealed that PIL acted as a plasticizer to decrease the original hydrogen bonding in cornstarch, and the original crystal structure of starch was destroyed into an amorphous state. In addition, the TPS could be hot pressed into a transparent film by using a hot press machine, showing a great thermoplasticity. The results showed that the PIL can be used as a new plasticizer in the field of thermoplastic starch and there is good compatibility between starch and PIL. This will further enrich the family of sustainable materials.
研究领域:
材料科学
·
生物化学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Junwang Zhang,Xinyu Zhu,Xiaoxiao Xu,Qingqin Sun,Ligang Wei,Kunlan Li,Shangru Zhai,Qingda An
The oxidative depolymerization of alkali lignin can be achieved by using Keggin structure polyoxometalate-ionic liquid (POM-IL) as catalyst under aerobic conditions . The effects of catalysts such as [HC 4 im] 3 PMo 12 O 40 , [HC 4 im] 5 PV 2 Mo 10 O 40 , [HC 2 im] 5 PV 2 Mo 10 O 40 , and [HC 4 im] 4 SiMo 12 O 40 (abbreviated as POM-IL1, POM-IL2, POM-IL3, and POM-IL4, respectively), the acidity of aqueous IL solutions on lignin conversion, and aromatic product distribution were investigated. Under optimized conditions, phenolic products (mainly m (p)-cresol, veratrole, vanillin) had the highest yield and the selectivity was as high as 75.0% using POM-IL1 as the catalyst. POM-IL2 and POM-IL3 were used as the catalysts, the highest conversion of 76.0% of lignin was achieved, and the overall yield of ketone products were higher on lignin samples, in which the main products include acetovanillone, 3-methoxyphenol, and 4-methylcatechol, and the highest selectivity of ketone products was 76.8%. The results show that the lignin fragments could be successfully oxidized into platform compounds in aqueous acidic ILs (AILs) solutions catalyzed by Keggin structure POM-IL. In addition, the role of AILs and POM-ILs in the oxidative depolymerization of alkaline lignin was analyzed, and the possible reaction mechanism between AIL-water/POM-IL/lignin system was speculated.
研究领域:
化学工程
·
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Xiangyu Sun,Li Han,Xiaoqiang Qiao,Tao Zhu
IL-to-PIL transformation enabled distinct interfacial reconstruction in HsGY/MWCNTs composites. • Polymerization reorganizes PIL interfaces into cooperative multivalent ionic networks. • The PIL5@HsGY/MWCNTs sensor achieved sensitive and stable GA detection. To investigate the distinct interfacial roles of ionic liquids (ILs) and polymerized ionic liquids (PILs), IL- and PIL-functionalized hydrogen-substituted graphyne/multi-walled carbon nanotube (HsGY/MWCNTs) composite electrodes were constructed, with gallic acid (GA) employed as a model analyte and density functional theory (DFT) calculations used to elucidate interfacial interaction mechanisms. After IL functionalization and in situ polymerization, distinct surface morphologies and electrochemical characteristics were observed for the resulting composite electrodes, while different electrochemical responses toward GA were obtained for the IL- and PIL-based composites, highlighting the influence of the modified sensing layers on electrode performance. Under optimized conditions (pH 3.0 and 150 s accumulation), the PIL5@HsGY/MWCNTs/GCE exhibited a linear range of 0.3–10 μM and a detection limit of 0.077 μM. Acceptable repeatability, reproducibility, and stability were achieved by the sensor, and its anti-interference performance was preliminarily evaluated through interference tests. Satisfactory recoveries of 97.68–103.33% were obtained in strawberry and green tea beverage samples. Overall, the distinct interfacial mechanisms of IL and PIL functionalization were elucidated, providing valuable insights for the rational design of high-performance electrochemical sensor interfaces. Download: Download high-res image (145KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2013
·
IF 3.777
Lijuan Zhao,Faqiong Zhao,Baizhao Zeng
A novel water-compatible molecularly imprinted ionic liquid polymer − ionic liquid functionalized graphene composite film coated glassy carbon electrode (MIP − rGO-IL/GCE) is presented. It is fabricated by coating a GCE with amine-terminated ionic liquid functionalized graphene (rGO-IL) and then with water-compatible MIP suspension. The water-compatible MIP is prepared by free radical polymerization in methanol-water system using sunset yellow (SY) as template and ionic liquid 1-(α-methyl acrylate)-3-allylimidazolium bromide (1-MA-3AI-Br) as functional monomer, which can interact with SY through π-π, hydrogen-bonding and electrostatic interaction. The resulting MIP − rGO-IL/GCE shows good performance when it is used for the differential pulse voltammetric determination of SY. Under the optimized conditions (i.e. pH 7.5, 0.1 M phosphate buffer, preconcentration under open-circuit for 570 s), the peak current is linear to SY concentration in the ranges of 0.010 μM − 1.4 μM and 1.4 μM − 16 μM with sensitivities of 5.0 μA/μM mm 2 and 1.4 μA/μM mm 2 respectively; the detection limit is 4 nM (S/N = 3). The electrode has been successfully applied to the determination of SY in some soft drinks, and the recoveries for the standards added are 95% − 107%.
研究领域:
分析化学
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
3 Biotech
·
2019
·Vol. 9
·期 7
·1-10
·
IF 1.786
Gao Jing,Chen Cuili,Wang Liyuan,Lei Youfeng,Ji Hongwu,Liu Shucheng
Pretreatment of lignocellulosic biomass with ionic liquids (ILs) for the large-scale biorefinery remains challenging due to its high price. This study focused on the utilization of inorganic salts as adjuvants for ionic liquid–water pretreatment to improve the tolerance to water and the reusability of the ILs. After the pretreatment of rice straw by the mixture of 40% 1-ethyl-3-methylimidazolium chloride ([C 2 mim]Cl) + 53% water + 7% K 2 CO 3 at 110 °C for 1 h, the residues became highly susceptible to enzymatic hydrolysis; 93.70% of lignin was removed, and 92.07% sugar yield was achieved. [C 2 mim]Cl-K 2 CO 3 aqueous biphasic system was formed at room temperature when K 2 CO 3 concentration increased to more than 30%, and the [C 2 mim]Cl recovery of 94.32% was achieved. The results indicate that the addition of inorganic salts to IL aqueous solutions can significantly reduce the cost of IL pretreatment, while maintaining an efficient enzymatic hydrolysis of lignocellulosic biomass.
研究领域:
生物工程
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 47
·期 1
·362-372
·
IF 3.925
Jing Shen,Dongxiu Wang,Li Yang,Tongwen Wang,Qianmo Yang,Jun Wang
Bilayered sodium dodecyl sulfate (SDS)/ionic liquids (alkyl imidazolium type ionic liquid Cnmim+, n = 10, 12, 14, and 16) were first employed to modify the surface of Fe3O4 nanoparticles for the formation of stable aqueous ferrofluids. Subsequently, in the synthesized bilayered SDS/C16mim+-stabilized ferrofluid (Fe3O4/SDS/C16mim+), magnetic mesoporous silica with a cubic (Ia3d) mesostructure (Fe3O4@MCM-48) has been synthesized using tetraethylorthosilicate as the silicon source and the long chain C16mim+ as a template again. The research results showed that the combination of SDS and long chain Cnmim+ (such as C16mim+) is superior to that of SDS and short chain Cnmim+ (such as C10mim+) for the production of stable ferrofluids in water. Moreover, Fe3O4@MCM-48 (0.1 g) with Fe3O4 particles embedded in the network of cubic mesoporous silica showed decolorization rates of up to ∼90% in 25 min for four dye (methylene blue, rhodamine B, malachite green, and methyl violet) solutions (50 mL, 100 mg L−1). In addition, the malachite green-adsorbed Fe3O4@MCM-48 can be separated and recovered under an external magnetic field. This method in which the long chain ionic liquid C16mim+ can be manipulated in turn not only as the modifier but also as the mesoporous templating agent provides important guidelines for the multifunctional applications of C16mim+ in the synthesis of various nanostructured materials.
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
CHEMISTRY-A EUROPEAN JOURNAL
·
2017
·Vol. 23
·期 49
·11881-11890
·
IF 5.317
Qing Xuan Shi,Qing Xia,Xiao Xiang,Yun Sheng Ye,Hai Yan Peng,Zhi Gang Xue,Xiao Lin Xie,Yiu-Wing Mai
Graphical A 3D self-assembled polymeric ionic liquid (PIL)-functionalized cellulose nano-crystals confining ILs in surface-grafted PIL brushes, able to form colloidal crystal polymer electrolytes (CCPE), is prepared that can be employed for high performance Li-ion battery. CCPE have exceptional ionic conductivities, low activation energies, high Li + transport numbers, low interface resistances, improved interface compatibilities, good electrochemical properties and a good battery performance. Composite polymeric and ionic liquid (IL) electrolytes are some of the most promising electrolyte systems for safer battery technology. Although much effort has been directed towards enhancing the transport properties of polymer electrolytes (PEs) through nanoscopic modification by incorporating nano-fillers, it is still difficult to construct ideal ion conducting networks. Here, a novel class of three-dimensional self-assembled polymeric ionic liquid (PIL)-functionalized cellulose nano-crystals (CNC) confining ILs in surface-grafted PIL polymer chains, able to form colloidal crystal polymer electrolytes (CCPE), is reported. The high-strength CNC nano-fibers, decorated with PIL polymer chains, can spontaneously form three-dimensional interpenetrating nano-network scaffolds capable of supporting electrolytes with continuously connected ion conducting networks with IL being concentrated in conducting domains. These new CCPE have exceptional ionic conductivities, low activation energies (close to bulk IL electrolyte with dissolved Li salt), high Li + transport numbers, low interface resistances and improved interface compatibilities. Furthermore, the CCPE displays good electrochemical properties and a good battery performance. This approach offers a route to leak-free, non-flammable and high ionic conductivity solid-state PE in energy conversion devices.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）