Category: 79917-90-1

Liu, Yan published the artcileCooperative modification of PVDF electroactive films due to the exfoliated and oriented Na ⁺– MMT with assistance of different cationic chain length ionic liquids, SDS of cas: 79917-90-1, the publication is Journal of Applied Polymer Science (2022), 139(22), 52238, database is CAplus.

Poly(vinylidene fluoride) (PVDF) based nano dielec. composites have been investigated widely due to their potential application in sensors, actuators, and energy storage fields. To achieve these goals, a novel modification of PVDF electroactive films was prepared due to the exfoliated and oriented Na⁺-MMT with the assistance of different cationic chain length imidazole-based ionic liquids The results proved the ion exchange between Na⁺-MMT and ILs promoted exfoliation and uniform dispersion of Na⁺-MMT in PVDF matrix efficiently even under a low ILs content (<0.05%). Furthermore, the existence of ILs and shearing force contributed to the oriented dispersion of Na⁺-MMT. The synergistic effect of Na⁺-MMT and ILs induced the crystal conformation transition from non-polar α-crystal to electroactive β/γ crystal. Compared with pure PVDF, PVDF/Na⁺-MMT/ILs nanocomposites with longer cationic chain ILs showed higher dielec. constant, breakdown strength, and energy d., while kept low-dielec. loss and conductivity The improved compatibility between PVDF and Na⁺-MMT due to the ion exchange and decreased crystal size for the polar β/γ crystal enhanced the transparency and elongation at break of PVDF/Na⁺-MMT/ILs nanocomposites significantly. The results proved [C16MIM][Cl] behaved optimum synergistic modification effect for the nanocomposites, and which showed potential applications in dielec. energy storage and microelectronic fields.

Journal of Applied Polymer Science published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, SDS of cas: 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Qu, Rui published the artcilePrediction on the combined toxicities of stimulation-only and inhibition-only contaminants using improved inverse distance weighted interpolation, SDS of cas: 79917-90-1, the publication is Chemosphere (2022), 287(Part_3), 132045, database is CAplus and MEDLINE.

The evaluation of ecol. risks of contaminant mixtures to organisms is very challenging due to the non-linear response of organisms to each component, especially under the co-existence of both stimulators and inhibitors. Whether the stimulatory effect can reduce or even offset the inhibitory effect would be critical to the risk assessment and the treatment measures of mixed pollutants. Here, the combined toxicity of sodium fluoride (NaF), a stimulator with stimulation rate >100%, and six compounds that cannot induce hormesis (four ionic liquids (ILs) and two pesticides) were studied. The time-dependent toxicity of each toxicant on Vibrio qinghaiensis sp.-Q67 was investigated at 0.25, 2, 4, 6, 8, 10 and 12 h. Results showed that four ILs and two pesticides failed to induce hormesis, while NaF induced hormesis from 2 to 6 h and induced stimulation only after 6 h and reached its maximum (650%) at 12 h. All mixture rays with NaF induced hormesis at different times. In the four NaF-IL mixture systems, the absolute value of maximum stimulation demonstrated an upwards and then a downwards trend with the increasing of mixture ratio of IL. In two NaF-pesticide systems, the maximum stimulation effect declined with the increasing of the mixture ratio of pesticide. The toxicities of the mixture were successfully predicted by the improved inverse distance weighted interpolation, which are not able to be predicted by the commonly used concentration addition or independent action models. This paper shed lights on evaluating the hormesis of mixtures and the ecol. risk of fluoride.

Chemosphere published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, SDS of cas: 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Freitas, Gabriel published the artcileImpact of magnetic ionic liquids as catalysts on the curing process of epoxy/anhydride system: Mechanistic investigation and dynamic-mechanical analysis, Quality Control of 79917-90-1, the publication is Journal of Applied Polymer Science (2022), 139(28), e52606, database is CAplus.

Cyclic acid anhydride – based hardeners provide excellent physic-mech. and thermal properties to epoxy networks. However, the curing process takes place at relatively high temperature, thus limiting the applications as coatings and free-heating devices. The present work describes for the first time the efficient catalytic action of imidazolium- and phosphonium- based ionic liquids (IL) bearing iron tetrachloride (FeCl₄) as counter anion for the curing process of epoxy prepolymer (EP)/methyl tetrahydrophthalic anhydride (MTHPA) even at room temperature Indeed, both differential scanning calorimetry and rheol. anal. revealed that the addition of 5 phr of trihexyl (tetradecyl)-phosphonium iron tetrachloride (P₆₆₆₁₄. FeCl₄) resulted in faster curing process when compared with systems cured with conventional tertiary amine. The gelation at room temperature occurred before 24 h with this magnetic IL. Moreover, the systems catalyzed by P₆₆₆₁₄. FeCl₄ presented higher glass transition temperature, higher storage modulus and higher crosslink d. as indicated by dynamic-mech. anal. (DMA). A mechanism for the curing process was proposed based on DSC and Fourier transform IR anal. These results highlight the importance of magnetic ILs as catalysts for the curing process of EP/MTHPA system and open new avenues for applications of this system as a room temperature-based curing system.

Journal of Applied Polymer Science published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Quality Control of 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Cheng, Huan published the artcileCatalytic Performance of Pd Nanoparticles Obtained by Direct Reduction in Cellulose-Poly(ferrocenylsilane) Hybrid Sponges, Application of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Advanced Materials Interfaces (2022), 9(6), 2101664, database is CAplus.

Cellulose-poly(ferrocenylsilane) (PFS) polyionic liquid (PIL) composite sponges are fabricated by codissoln. of cellulose and PFS-PIL, followed by solvent exchange and freeze-drying. The hybrid sponges are used to in situ produce and immobilize palladium nanoparticles (Pd NPs), leading to Pd NP-decorated porous supports. The formation of Pd NPs is confirmed by TEM and XPS measurements. The as-prepared cellulose/PFS-PIL@Pd sponges exhibit a high catalytic activity in the reduction of 4-nitrophenol (4-NiP) to 4-aminophenol (4-AmP). As a variety of metal NPs may be immobilized using this method, these sponges constitute a promising new class of catalytic porous supports.

Advanced Materials Interfaces published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Application of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Bakthavatchalam, Balaji published the artcileComparative evaluation on the thermal properties and stability of MWCNT nanofluid with conventional surfactants and ionic liquid, Product Details of C8H15ClN2, the publication is Journal of Thermal Analysis and Calorimetry (2022), 147(1), 393-408, database is CAplus.

Conventional surfactants such as CTAB (cetrimonium bromide), SDS (sodium dodecyl sulfate), SDBS (sodium dodecyl sulfonate) are combined with nanofluids to improve the stability and thermal conductivity of nanofluids. These nanofluids are mainly used for heat transfer applications where heating and cooling are usual courses of action which result in surfactants producing foams and polluting the heat transfer media, affecting the total system performance. Besides, the common surfactant mols. that augment the thermal resistance between the nanoparticles and base fluid also affect the thermophys. properties of the nanofluid. In this paper, [Bmim][Cl] (1-butyl-3-methylimidazolium chloride), a high purity ionic liquid (IL) with higher thermal stability was used to provide a comparative study on the stability and thermal properties with that of the conventional surfactants (CTAB, SDS, SDBS) on multiwalled carbon nanotubes (MWCNT)/propylene glycol (PG) nanofluid. The transient hot-wire based KD2-Pro and zeta potential results demonstrated that the inclusion of ionic liquid improved the thermal conductivity and stability of the formulated nanofluid. However, much like the conventional surfactants, the strong electrostatic repulsive force created by the ionic liquid was found to decrease when the temperature is increased. The outcome demonstrated the most extreme thermal conductivity upgrade of 33.7% at 303 K and maximum dispersion stability of more than one month without any aggregation for the nanofluid containing ionic liquid

Journal of Thermal Analysis and Calorimetry published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Product Details of C8H15ClN2.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Frawley, Rachel P. published the artcileEvaluation of skin sensitization induced by four ionic liquids, Synthetic Route of 79917-90-1, the publication is Journal of Applied Toxicology (2022), 42(3), 392-408, database is CAplus and MEDLINE.

Ionic liquids (ILs) are synthetic solvents used as replacements for volatile organic solvents. Human exposure occurs through dermal or oral routes. In rodents, several ILs were reported to induce dermal toxicity, irritation, and sensitization. Due to the potential for occupational exposure, and industrial use as nonvolatile solvents, 1-ethyl-3-methylimidazolium chloride (EMIM, 6.25% to 50% volume/volume), 1-butyl-3-methylimidazolium chloride (BMIM, 3.12% to 12.5% volume/volume), 1-butyl-1-methylpyrrolidinium chloride (BMPY, 0.825% to 6.25% volume/volume), and N-butylpyridinium chloride (NBuPY, 0.825% to 12.5% volume/volume) were nominated to the National Toxicol. Program and evaluated for skin sensitization. The test compound was applied to the ears of female BALB/c mice daily for 3 days in a primary irritancy (IRR)/local lymph node assay (LLNA). Sensitization was assessed in vitro in the direct peptide reactivity assay (DPRA), KeratinoSens assay, and human cell line activation test (h-CLAT). In the LLNA, the butylated ILs, BMIM, and BMPY were more potent than NBuPY (butylated) or EMIM (ethylated), which was neither an irritant nor a sensitizer. NBuPY induced skin irritation in vivo at ≥3.12% (p ≤ 0.01), and sensitization in vitro in the KeratinoSens assay and h-CLAT, but was neg. for sensitization in vivo and in the DPRA. Although SI3 was not achieved, dermal treatment with 12.5% BMIM or 6.25% BMPY increased (p ≤ 0.01) lymph node cell proliferation in the LLNA. In vitro, BMIM was pos. for sensitization in the h-CLAT, and BMPY was pos. in the h-CLAT and KeratinoSens assay; both were neg. in the DPRA. Integrated data analyses, weighted toward in vivo data, suggested that BMIM and BMPY may induce weak to mild sensitization.

Journal of Applied Toxicology published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Synthetic Route of 79917-90-1.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem