100-200 Archives - Page 155 of 160 - Imidazoles-derivatives

Journal of Molecular Liquids | Cas: 65039-09-0 was involved in experiment

1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a solvent as well as catalyst for the depolymerization of oak wood lignin; a solvent in the hydrolysis of hemicellulose (xylan) to xylose using Brønsted acid catalysts.Recommanded Product: 65039-09-0

Recommanded Product: 65039-09-0《Stretchable and self-healable double-network ionogel with strong adhesion and temperature tolerance for information encryption》 was published in 2022. The authors were Qiu, Zengfeng;Wang, Xiaolin;Wang, Tiantian;Zhao, Xiangjie;Zhang, Jingyue;Xu, Chao;Xu, Jiaheng;Yin, Hongzong, and the article was included in《Journal of Molecular Liquids》. The author mentioned the following in the article:

Recently, hydrogels with adjustable mech. properties have been developed for information security applications. However, the defects such as easy drying and inferior resistance to extreme temperatures limit their extended applications. Herein, a fluorescent double-network ionogel doped with imidazole-modified carbon quantum dots (CQDs) is constructed by the dynamic covalent crosslinking of chitosan with glutaraldehyde and chem. crosslinking of acrylamide in 1-ethyl-3-methylimidazolium chloride (EMIMCl). The ionogel exhibits high thermal stability and good resistance to high and low temperatures In addition, the as-prepared ionogel possesses good viscoelasticity with high elastic modulus (G’, ~105 Pa) and a viscosity of ~10⁴ Pa.s. Attributed to the excellent stretchability, durability and self-adhesion in a wide operating temperature range, the ionogel has been successfully constructed to a mechanochromic fluorescent device for the reversible encryption and decryption of the information. Dual stimuli of UV light and force are required to reveal the hidden information. Besides, the dynamic Schiff base bonds formed by amine groups of chitosan and aldehyde groups of glutaraldehyde allow the ionogel to quickly repair damages without external stimulation, prolonging its service life. Therefore, this work reports a new strategy for the preparation of soft materials for more secure information encryption by using high-performance ionogels. To complete the study, the researchers used 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) .

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Cas: 65039-09-0 | Zhang, Huan et al. made new progress in 2022

Computed Properties of C6H11ClN2《Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture》 was published in 2022. The authors were Zhang, Huan;Ionita, Andreea;Serinan, Pilar F.;Ferrer, Maria Luisa;Rodriguez, Maria A.;Tamayo, Aitana;Rubio Alons, Fausto;del Monte, Francisco;Gutierrez, Maria C., and the article was included in《Molecules》. The author mentioned the following in the article:

Ionic liquids (ILs) and deep eutectic solvents (DESs) are the two most widely used neoteric solvents. Recently, our group described how the simple addition of acetic acid (AcOH) to 1-Ethyl-3-methylimidazolium chloride (EMIMCl) could promote the transition from the original IL to an eutectic mixture of EMIMCl and AcOH. Herein, we studied how cellulose regeneration and EMIMCl recovery from EMIMCl solutions of cellulose could be benefited by the significant differences existing between EMIMCl- and EMIMCl·AcOH-based mixtures and the easy switching from one to the other. Finally, we also demonstrated that the transition could also be accomplished by addition of acetic anhydride and water so that the process could be eventually useful for the achievement of highly acetylated cellulose. To complete the study, the researchers used 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) .

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Cas: 65039-09-0 | Liu, Qianpublished an article in 2022

Liu, Qian;Zhang, Xianglan published 《Highly efficient separation of phenolic compounds from low-temperature coal tar by composite extractants with low viscosity》. The research results were published in《Journal of Molecular Liquids》 in 2022.Category: imidazoles-derivatives The article conveys some information:

Highly efficient separation of phenolic compounds from low-temperature coal tar (LTCT) is significant in the industry. In this work, composite extractants composed of imidazolium-based ionic liquids (ILs) and solvents were used to sep. phenolic compounds from model oil and LTCT. First, the COSMO-RS model was used to screen composite extractants that combined the infinite dilution thermodn. indexes and liquid-liquid equilibrium (LLE) calculations Meanwhile, the separation mechanism was analyzed by σ-profile and σ-potential. Then, the reliability of the COSMO-RS model was validated by LLE experiments and FT-IR. The viscosity of composite extractants with high separation performance was further determined Among the composite extractants, 1-ethyl-3-methyl-imidazolium hydrogen sulfate ([emim][HSO4])/ethylene glycol (EG) was selected as the most suitable extractant in the separation process. The m-cresol extraction efficiency and cumene entrainment were 98.1% and 8.3%, resp., at a [emim][HSO₄]:EG molar ratio of 1:2, a temperature of 25 °C, and a composite extractant: model oil mass ratio of 1:1. Moreover, the viscosity of [emim][HSO₄]:EG (1:2) was only 51.8 cP at 25 °C and decreased by 95.6% compared with pure [emim][HSO₄], which enhanced the mass transfer in the separation process. The [emim][HSO₄]:EG (1:2) could be regenerated and reused without significant reduction in separation performance. Finally, [emim][HSO₄]:EG (1:2) was applied to sep. phenolic compounds from LTCT with a phenol extraction efficiency of more than 99.9% and a neutral oil entrainment of 8.3%, providing a promising prospect for the separation of phenolic compounds1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) were involved in the experimental procedure.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application of cas: 65039-09-0 | Rocha, Ines L. D. et al. published an article in 2022

1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a starting material for the preparation of 1-ethyl-3-methylimidazolium chloride/tetrafluoroborate (EMI.Cl.BF4) molten salt for electrochemical studies; a solvent as well as catalyst for the depolymerization of oak wood lignin.Safety of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride

Rocha, Ines L. D.;da Costa Lopes, Andre M.;Ventura, Sonia P. M.;Coutinho, Joao A. P. published 《Selective Separation of Vanillic Acid from Other Lignin-Derived Monomers Using Centrifugal Partition Chromatography: The Effect of pH》. The research results were published in《ACS Sustainable Chemistry & Engineering》 in 2022.Safety of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride The article conveys some information:

In this work, centrifugal partition chromatog. (CPC) assisted by a polyethylene glycol (PEG)/sodium polyacrylate (NaPA) aqueous biphasic system (ABS) was applied in the separation of five lignin-derived monomers (vanillin, vanillic acid, syringaldehyde, acetovanillone, and p-hydroxybenzaldehyde). The influence of the system pH (unbuffered, pH 5, and pH 12) and added electrolytes (inorganic salts or ionic liquids (ILs)) on the compound partition was initially evaluated. The obtained data revealed that ILs induced more adequate partition coefficients (K < 5) than inorganic salts (K > 5) to enable separation performance in CPC, while alk. conditions (pH 12) demonstrated a pos. impact on the partition of vanillic acid. CPC runs, with buffered ABS at pH 12, enabled a selective separation of vanillic acid from other lignin monomers. Under these conditions, a distinct interaction between the top (PEG-rich) and bottom (NaPA-rich) phases of the ABS with the double deprotonated form of vanillic acid is expected when compared to the remaining lignin monomers (single deprotonated). This is an impactful result that shows the pH to be a crucial factor in the separation of lignin monomer compounds by CPC, while only unbuffered systems have been previously studied in the literature. Finally, the recovery of vanillic acid up to 96% purity and further recycling of ABS phase-forming components were approached as a proof of concept through the combination of ultrafiltration and solid-phase extraction steps.1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) were involved in the experimental procedure.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Russian Chemical Bulletin | Cas: 65039-09-0 was involved in experiment

Safety of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride《Synthesis of adamantane by ionic liquid-promoted isomerization of tricyclo[5.2.1.0^2,6]decane and H₂SO₄-mediated hydroisomerization of pentacyclo[4.4.0.0^2,4.0^3,7.0^8,10]decane》 was published in 2022. The authors were Aminov, R. I.;Ramazanov, I. R.;Khusnutdinov, R. I., and the article was included in《Russian Chemical Bulletin》. The author mentioned the following in the article:

Adamantane was synthesized by skeletal isomerization of endo- and exo-tricyclo[5.2.1.0^2,6]^–decanes in the presence of ionic liquid [Et₃NH]⁺[Al₂Cl₇]^–-CuSO₄. A new method to synthesize adamantane in 75% yield by H₂SO₄-mediated hydroisomerization of its new precursor, pentacyclo[4.4.0.0^2,4.0^3,7.0^8,10]decane, was developed. And 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) was used in the research process.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Cas: 65039-09-0 | Sun, Yanbin et al. made new progress in 2022

1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a starting material for the preparation of 1-ethyl-3-methylimidazolium chloride/tetrafluoroborate (EMI.Cl.BF4) molten salt for electrochemical studies; a solvent as well as catalyst for the depolymerization of oak wood lignin.Reference of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride

Reference of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride《Deep eutectic solvents coupled with (NH₄)₃H₆CoMo₆O₂₄ trigger aerobic oxidation of 5-hydroxymethylfurfural to 5-formyl-2-furancarboxylic acid》 was published in 2022. The authors were Sun, Yanbin;Yang, Kaixuan;Zhu, Zhiguo;Su, Ting;Ren, Wanzhong;Lu, Hongying, and the article was included in《Chemical Communications (Cambridge, United Kingdom)》. The author mentioned the following in the article:

An Anderson-type polyoxometalate (NH4)3H6CoMo6O24 in deep eutectic solvents exhibited outstanding catalytic performance for the selective aerobic oxidation of HMF to FFCA. It is potentially a promising and highly environmentally friendly approach for biomass conversion. And 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) was used in the research process.

1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a starting material for the preparation of 1-ethyl-3-methylimidazolium chloride/tetrafluoroborate (EMI.Cl.BF4) molten salt for electrochemical studies; a solvent as well as catalyst for the depolymerization of oak wood lignin.Reference of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Cas: 65039-09-0 | Zhang, Yinhang et al. made new progress in 2022

Zhang, Yinhang;Fan, Yuan;Kamran, Urooj;Park, Soo-Jin published 《Improved thermal conductivity and mechanical property of mercapto group-activated boron nitride/elastomer composites for thermal management》. The research results were published in《Composites, Part A: Applied Science and Manufacturing》 in 2022.Computed Properties of C6H11ClN2 The article conveys some information:

Ionic liquid 1-Ethyl-3-methylimidazolium chloride was employed to promote the exfoliation of hexagonal boron nitride (BN) to fabricate the boron nitride nanosheets (BNNSs). The BNNSs were then surface activated by covalently attaching mercapto groups on their surfaces. The surface-activated BNNS nanoparticles (S@BNNSs) were incorporated in a carboxylated styrene-butadiene rubber matrix for preparing thermal management materials. The developed material was provided with superior mech. properties, satisfied thermal conductivity and strong storage modulus attributing to the two-dimensional structure of the filler and the enhanced interfacial interaction between the filler and matrix. The filler-filler and filler-matrix networks in the composite system were comprehensively analyzed. The thermal management applications were also demonstrated using an IR camera and a com. thermoelec. generator. All the performances demonstrated their potential use as thermal management materials in electronic devices. To complete the study, the researchers used 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) .

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

New progress of cas: 65039-09-0 | ACS Sustainable Chemistry & Engineering 2022

Name: 1-Ethyl-3-methyl-1H-imidazol-3-ium chlorideIn 2022, Hou, Qidong;Bai, Chuanyunlong;Bai, Xinyu;Qian, Hengli;Nie, Yifan;Xia, Tianliang;Lai, Ruite;Yu, Guanjie;Rehman, Mian Laiq Ur;Ju, Meiting published 《Roles of Ball Milling Pretreatment and Titanyl Sulfate in the Synthesis of 5-Hydroxymethylfurfural from Cellulose》. 《ACS Sustainable Chemistry & Engineering》published the findings. The article contains the following contents:

Production of 5-hydroxymethylfurfural (HMF) from cellulose has been expected for a long time, but most catalytic systems generally give low yield and selectivity due to the difficulty of balancing cellulose deconstruction with the uncontrollable degradation of the target product under harsh conditions. Here we show that the ball milling pretreatment could markedly facilitate the conversion of microcrystalline cellulose to HMF by titanyl sulfate (TiOSO₄). The ball milling pretreatment remarkably decreases the degree of crystallinity of microcrystalline cellulose with a reduction of mol. weight via disrupting the hydrogen bond and partially breaking the β-1,4-glycosidic bond. TiOSO₄ functions as both Lewis and Bronsted acid to catalyze the efficient conversion of cellulose with high HMF yield (45.4%), far exceeding that (14.1%) from untreated cellulose. The reaction pathway was revealed by liquid chromatograph-mass spectra anal. In addition, phosphorylated titanium dioxide also afforded a notable HMF yield (21.8%), showcasing the great potential of Ti-based heterogeneous catalyst.1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) were involved in the experimental procedure.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Wang, Jing et al. published new progress in experiments with the help of cas: 65039-09-0

Wang, Jing;Li, Qing;Li, Kuncai;Sun, Xu;Wang, Yizhuo;Zhuang, Tiantian;Yan, Junjie;Wang, Hong published 《Ultra-High Electrical Conductivity in Filler-Free Polymeric Hydrogels Toward Thermoelectrics and Electromagnetic Interference Shielding》. The research results were published in《Advanced Materials (Weinheim, Germany)》 in 2022.Application In Synthesis of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride The article conveys some information:

Conducting hydrogels have attracted much attention for the emerging field of hydrogel bioelectronics, especially poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) based hydrogels, because of their great biocompatibility and stability. However, the elec. conductivities of hydrogels are often lower than 1 S cm^-1 which are not suitable for digital circuits or applications in bioelectronics. Introducing conductive inorganic fillers into the hydrogels can improve their elec. conductivities. However, it may lead to compromises in compliance, biocompatibility, deformability, biodegradability, etc. Herein, a series of highly conductive ionic liquid (IL) doped PEDOT:PSS hydrogels without any conductive fillers is reported. These hydrogels exhibit high conductivities up to ≈305 S cm^-1, which is ≈8 times higher than the record of polymeric hydrogels without conductive fillers in literature. The high elec. conductivity results in enhanced areal thermoelec. output power for hydrogel-based thermoelec. devices, and high specific electromagnetic interference (EMI) shielding efficiency which is about an order in magnitude higher than that of state-of-the-art conductive hydrogels in literature. Furthermore, these stretchable (strain >30%) hydrogels exhibit fast self-healing, and shape/size-tunable properties, which are desirable for hydrogel bioelectronics and wearable organic devices. The results indicate that these highly conductive hydrogels are promising in applications such as sensing, thermoelecs., EMI shielding, etc. And 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) was used in the research process.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Learn more about cas: 65039-09-0 | Solid State Ionics 2022

Qu, Minghe;Li, Shenshen;Chen, Jian;Xiao, Yunqin;Xiao, Jijun published 《Molecular dynamics simulations of ionic liquid/poly(vinylidene fluoride) systems: Ion transport with different anions》 in 2022. The article was appeared in 《Solid State Ionics》. They have made some progress in their research.Electric Literature of C6H11ClN2 The article mentions the following:

Mol. dynamics (MD) simulations were applied to explore the ion transport in six ionic liquid/poly(vinylidene fluoride) (IL/PVDF) systems where the cation is 1-ethyl-3-methylimidazolium ([EMIM]) and the anions are [Cl], [Br] [BF₄], [PF₆], trifluoromethanesulfonate ([TfO]) and bis(trifluoromethanesulfonyl)imide ([NTf₂]) sep., and each system contains about 40 wt% IL. The glass transition temperature (T_g = 204 K) of [EMIM][NTf₂]/PVDF system is good agreement with the exptl. value (200 K). Transference number of ions, ideal conductivity and viscosity can be calculated based on diffusion coefficient The power law shows mobilities of anions and cations are seen to exhibit a “superionic” behavior when considering all the anions (cations) together. Overall, for the same IL/PVDF system, with the increase of temperature, both the ion-pair relaxation times and lifetimes decrease, while diffusion coefficients of ions increase, so ion motion is intensified. The transference numbers of anions and cations show upward and downward trends resp., indicating that the diffusion coefficients of cations decrease faster than that of the anions. The conductivity gradually increases, and the viscosity gradually decreases. For different IL/PVDF systems, the chem. properties of ion pairs are the main factors affecting ion-pair relaxation times and lifetimes, diffusion coefficients, the conductivity and viscosity at lower temperatures However, the influence gradually weakens as the temperature increases, and the IL/PVDF systems with a large Tg will have smaller the diffusion coefficients, conductivity, as well as higher viscosity at higher temperatures1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) were involved in the experimental procedure.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem