Ionic liquid microemulsion‐mediated <i>in situ</i> thermosynthesis of poly(ionic liquid)s and their adsorption properties for Zn(II)

Wang, Aili; Li, Shuhui; Zhang, Liya; Chen, Hou; Li, Yanan; Hu, Lihua; Peng, Xiong

doi:10.1002/pen.25060

Cited by 20 publications

(9 citation statements)

References 35 publications

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“…To verify the EB-activated solidification mechanism of ionic liquids, the infrared spectroscopy of [Allmim][Cl] liquid and the [Allmim][Cl]-derived solidified structure on Si was conducted (Figure , Table ). A comparison of the obtained FTIR spectra for ionic liquid before and after EB exposure shows that in both cases characteristic peaks connected with the imidazole ring and saturated hydrocarbons are observed. − That confirms the chemical composition of the measured materials. There are also some differences detected.…”

Section: Resultssupporting

confidence: 60%

Electron Beam Patterning of Polymerizable Ionic Liquid Films for Application in Photonics

Rola

Zając²,

Czajkowski

et al. 2019

Langmuir

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Planar photonic components can be fabricated with high resolution by electron beam patterning of polymer thin films on solid substrates such as silicon and glass. However, polymer films are normally formed by spin-coating lithographic resists containing not only polymers but also volatile solvents, which is a serious environmental and health issue. Therefore, we investigate a new type of material for planar structure fabrication (i.e., room-temperature ionic liquids (RTILs) with a polymerizable allyl group) that is electron-beam-curable, solvent-free, and thus potentially interesting for processing materials with weak resistance to solvents. We fabricate planar polymer microstructures by electron beam patterning of RTIL thin films in vacuum, which is possible because of the negligible volatility of ionic liquids. Three different polymerizable ionic liquids {i.e., [Allmim][Cl] (1allyl-3-methylimidazolium chloride), [Allmim][NTf 2 ] (1-allyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide), and [Allmmim][NTf 2 ] (1-allyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide)} are compared in terms of the quality of the fabricated microstructures. We demonstrate that the shape of the more viscous RTIL with the Cl − anion is less distorted during electron-beam-activated polymerization than the shape of the less viscous RTILs with a large NTf 2 − anion. Furthermore, the surface tension of the NTf 2 -based ionic liquid decreases significantly with temperature as compared to that of the Cl-based ionic liquid. Thus, we suggest that the thermocapillary effect, that is, the Marangoni flow caused by a temperature gradient, might be responsible for the differences in the shape of the RTIL-derived microstructures. Also, we analyze the chemistry of the electron-beam-activated polymerization of RTIL by the use of Fourier-transform infrared spectroscopy (FTIR) and conclude that because of the disappearance of CC bonds the free radical polymerization is a probable reaction mechanism. Finally, we show that polymerized microstructures are potentially attractive as planar photonic components because of good optical properties such as a high refractive index.

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Section: Resultssupporting

confidence: 60%

Electron Beam Patterning of Polymerizable Ionic Liquid Films for Application in Photonics

Rola

Zając²,

Czajkowski

et al. 2019

Langmuir

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“…With the introduction of the concept of green chemistry, more and more researchers have been studying the structure and properties of ionic liquids [30–34] . Due to their unique properties, ionic liquids have been applied to various fields, such as electrochemistry, organic synthesis, separation and purification of chemical reaction products and so on [35–41] . They can also be used as modifiers to improve the performance of materials [42] .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Acid Orange and Reactive Red by DK110 Loaded Ionic Liquid

Zhang

et al. 2022

Zeitschrift anorg allge chemie

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Wastewater treatment has always been a topic of concern. Adsorption is one of the commonly‐used methods to treat the dye wastewater. In this work, epichlorohydrin and N‐methylimidazole based ionic liquid were bonded to DK110 resin to synthesize a modified resin (ILDK110) loaded with an ionic liquid. Then infrared spectroscopy and thermogravimetric analysis were used to characterize the successful synthesis of ILDK110. The absorption functions of modified resins on reactive red and acid orange under different temperatures, dye concentrations and pH were investigated. The experimental results show that the adsorption amount of ILDK110 increases with the rise of temperature. At 35 °C, the adsorption amount of acidic orange and reactive red reaches 109.45 mg/g and 111.94 mg/g respectively. The pH has little effect on the amount of adsorption. In the whole adsorption process, the adsorption of reactive red and acid orange by ILDK110 was more consistent with Langmuir isothermal model. The adsorption of acid orange is suitable to be described by the first‐order kinetic equation, while the adsorption of reactive red is more suitable by the description of the second‐order kinetic equation. Under experimental conditions, the removal rates of the modified resin on both the two dyes can reach over 99 %. Furthermore, after adsorption, the saturated resin is easy to be eluted with dilute hydrochloric acid solution, and the elution rate is more than 99 %.

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“…Due to the controllability of the nanosized structure of the ionic liquid microemulsion droplets, nanomaterials such as TiO 2 , phosphate nanocrystals and polyaniline could be easily synthesized by controlling the microstructure of the designed microemulsions [16,17,18]. Moreover, ionic liquid monomers could also be used as the polar and/or non-polar phase of microemulsions, and these types of polymeric ionic liquid microemulsions could be used as an in situ synthesis media for PILs [19].…”

Section: Introductionmentioning

confidence: 99%

Construction of Novel Polymerizable Ionic Liquid Microemulsions and the In Situ Synthesis of Poly(Ionic Liquid) Adsorbents

Wang

Chen

et al. 2019

Nanomaterials

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This paper reports the successful construction of novel polymerizable ionic liquid microemulsions and the in situ synthesis of poly(ionic liquid) adsorbents for the removal of Zn2+ from aqueous solution. Dynamic light-scattering data were used to confirm the polymerization media and to illustrate the effect of the crosslinker dosage on the droplet size of the microemulsion. FTIR and thermal analysis were employed to confirm the successful preparation of the designed polymers and characterize their thermostability and glass transition-temperature value. The optimization of the adsorption process indicates that the initial concentration of Zn2+, pH, adsorbent dosage and contact time affected the adsorption performance of poly(ionic liquid)s toward Zn2+. Furthermore, our research revealed that the adsorption process can be effectively described by the pseudo second-order kinetic model and the Freundlich isotherm model.

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Ionic liquid microemulsion‐mediated in situ thermosynthesis of poly(ionic liquid)s and their adsorption properties for Zn(II)

Cited by 20 publications

References 35 publications

Electron Beam Patterning of Polymerizable Ionic Liquid Films for Application in Photonics

Electron Beam Patterning of Polymerizable Ionic Liquid Films for Application in Photonics

Adsorption of Acid Orange and Reactive Red by DK110 Loaded Ionic Liquid

Construction of Novel Polymerizable Ionic Liquid Microemulsions and the In Situ Synthesis of Poly(Ionic Liquid) Adsorbents

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