Spectroscopic and viscometric studies on the interaction of ionic liquid, 1-butyl-3-methylimidazolium bromide with polyvinyl pyrrolidone

Mehrdad, Abbas; Niknam, Zahra

doi:10.1016/j.fluid.2015.02.004

Cited by 19 publications

(10 citation statements)

References 32 publications

(36 reference statements)

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“…In the spectrum of AMICl, the peak at 3142 and 3078 cm −1 is attributed to the C4,5–H and C2–H stretching vibration of the imidazolium ring (Scheme ), respectively . In order to reach to stable status, intermolecular hydrogen bond will be formed in C2–H···Cl − , C4–H···Cl − and C5–H···Cl − between imidazolium cations and counter anions . The ionic Cl − is a good hydrogen bond acceptor and can form a stable hydrogen bond with hydroxyl groups .…”

Section: Resultsmentioning

confidence: 99%

“…[40] In order to reach to stable status, intermolecular hydrogen bond will be formed in C2-H···Cl À , C4-H···Cl À and C5-H···Cl À between imidazolium cations and counter anions. [41][42][43] The ionic Cl À is a good hydrogen bond acceptor and can form a stable hydrogen bond with hydroxyl groups. [44,45] After mixing with GO, the peaks at 3142 and 3078 cm À1 of AMICl shift to 3156 and 3103 cm À1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

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Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Yin

Zhang

et al. 2016

Polymers for Advanced Techs

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Ionic liquid 1‐allyl‐3‐methyl‐imidazolium chloride (AMICl) is used to fine‐tune the surface properties of graphene oxide (GO) sheets for fabricating ionic liquid functionalized GO (GO‐IL)/styrene‐butadiene rubber (SBR) nanocomposites. The morphology and structure of GO‐IL are characterized using atomic force microscope, X‐ray diffraction, differential scanning calorimetry, X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, UV‐vis spectra and Raman spectra. The interaction between GO and AMICl molecules as well as the effects of GO‐IL on the mechanical properties, thermal conductivity and solvent resistance of SBR are thoroughly studied. It is found that AMICl molecules can interact with GO via the combination of hydrogen bond and cation–π interaction. GO‐IL can be well‐dispersed in the SBR matrix, as confirmed by X‐ray diffraction and scanning electron microscope. Therefore, the SBR nanocomposites incorporating GO‐IL exhibit greatly enhanced performance. The tensile strength, tear strength, thermal conductivity and solvent resistance of GO‐IL/SBR nanocomposite with 5 parts per hundred rubber GO‐IL are increased by 505, 362, 34 and 31%, respectively, compared with neat SBR. This method provides a new insight into the fabrication of multifunctional GO‐based rubber composites. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Yin

Zhang

et al. 2016

Polymers for Advanced Techs

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“…Also the peak at around 3140 cm –1 is ascribed to C 4 –H and C 5 –H of the IL. The hydrogen of C 2 –H in the imidazolium cation is significantly acidic; therefore in an imidazolium-based IL may be a combination of hydrogen bonding and Coulombic attraction between cation and anion . In the case of PEO, the oxygen atom is a potential hydrogen-bond acceptor .…”

Section: Resultsmentioning

confidence: 99%

“…During past few years, the rheological properties of some polymers in ILs have been studied. ,− In previous works we have also investigated the viscosity behavior of polyvinylpyrrolidone in the presence of ionic liquids, 1-butyl-3-methyl-imidazolium bromide [BMIm]Br, 1-hexyl-3-methyl-imidazolium bromide [HMIm]Br, and 1-octyl-3-methyl-imidazolium bromide [OMIm]Br in aqueous solutions. − Our previous studies indicated that the addition of IL in aqueous solutions of polyvinylpyrrolidone (PVP) increases the thermodynamic quality of water for PVP. In this research, some properties of solution of PEO in binary mixtures of water and ionic liquid, 1-butyl-3-methyl imidazolium bromide were studied at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Interactions of Poly(ethylene oxide) and Ionic Liquid 1-Butyl-3-methyl-imidazolium Bromide by Viscosity and Spectroscopy

Mehrdad

Niknam

2016

J. Chem. Eng. Data

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In this research, the solution of poly(ethylene oxide) in binary mixtures of water and ionic liquid, 1-butyl-3-methyl imidazolium bromide, were studied via spectroscopic and viscometric at the temperature range of 288.15–313.15 K. Also, the effects of ionic liquid, 1-butyl-3-methyl imidazolium bromide, on the thermodynamic parameters of dilute aqueous solutions of poly(ethylene oxide), such as polymer–solvent interaction parameter, theta temperature, the heat of dilution parameter, and the entropy of dilution parameter were investigated. Our data indicate that the thermodynamic quality of water for poly(ethylene oxide) is reduced by the addition of 1-butyl-3-methyl imidazolium bromide and increasing temperature. The flow activation energy was calculated and correlated in terms of polymer concentration. The sign of initial slope of the activation energy versus polymer concentration at zero concentration reveals that thermodynamic quality of IL aqueous solutions is reduced by increasing temperature. The type of interactions between poly(ethylene oxide) and 1-butyl-3-methyl imidazolium bromide was studied by Fourier transform infrared (FT-IR) and UV–vis methods. The existence of hydrogen bonding between the imidazolium cation and the oxygen atom of poly(ethylene oxide) was confirmed by the results of FT-IR and UV–vis spectroscopies.

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“…The strong intermolecular hydrophobic-hydrophobic attraction, and other non-covalent (hydrophilic, π•••π interactions, columbic attraction etc.) interactions must have been developed with amino acids [37] but after a certain point the ions contribution are less in transport change and leading to level off. As the [BMIM][C8SO4] SAIL has to some extent more acidic protons and less hindered imidazolium ring protons [31] and long hydrophobic alkyl chain in counter ion part than the [MOIM]Cl, so the former IL must be involved in good interactions than [MOIM]Cl with the amino acids.…”

Section: Conductance Studymentioning

confidence: 99%

Exploring Diverse Interactions of Some Surface-Active Ionic Liquids with Amino Acids Prevalent in Aqueous Environments by Physicochemical Contrivance

Majumder¹,

Kundu²,

Ghosh³

et al. 2019

JACS

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Molecular interactions of two (ILS) [BMIM][C8SO4] and [MOIM]Cl with amino acids (AA) (AA= L-tyr, Lphe) in aqueous medium have been investigated by molar conductivities (Ʌ) at three different temperatures. Spectroscopic studies have been performed to investigate the association behavior between the ILs and the selected amino acids and the spontaneity of this process. The 1 H NMR spectroscopy has also been carried out to expose the change in electronic conditions of various protons of ILs in the presence of different amino acids. All the results have been interpreted on the light of possible molecular interactions operating in the ternary system and varies in the order of ([BMIM][C8SO4] + L-tyr)> ([MOIM]Cl + L-tyr)> ([BMIM][C8SO4] + L-phe)> ([MOIM]Cl + L-phe) in water. The obtained experimental parameters will be extremely supportive to understand the mixing effect and other complicated biological process between amino acids and the chosen ionic liquids.

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Spectroscopic and viscometric studies on the interaction of ionic liquid, 1-butyl-3-methylimidazolium bromide with polyvinyl pyrrolidone

Cited by 19 publications

References 32 publications

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Investigation on the Interactions of Poly(ethylene oxide) and Ionic Liquid 1-Butyl-3-methyl-imidazolium Bromide by Viscosity and Spectroscopy

Exploring Diverse Interactions of Some Surface-Active Ionic Liquids with Amino Acids Prevalent in Aqueous Environments by Physicochemical Contrivance

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