A simple study on vaporization enthalpy of taurine anion-based ionic liquid

Liu, Lu; Zhao, Yue; Wu, Junshuang; Hong, Mei; Kong, Yali; Tong, Jing

doi:10.1016/j.molliq.2020.115007

Cited by 6 publications

(4 citation statements)

References 20 publications

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“…The process is gentle and does not require any pretreatment, reaction media, or generation of toxic byproducts, which is a marked departure from the preparation of other commonly used ionic liquids that typically necessitate ion exchange or intense exothermic reactions. [ 21,23,24 ] Notably, we selected three different types of amino acids, including acidic amino acids (L‐glutamic acid (Glu) and L‐aspartic acid (Asp)), basic amino acids (L‐Lysine (Lys), L‐Arginine (Arg), L‐Histidine (His)), neutral amino acids (L‐proline (Pro), D‐serine (Ser), L‐threonine (Thr), Glycine (Gly), L‐Valine (Val), L‐Leucine (Leu), L‐tyrosine (Tyr), and L‐Tryptophan (Try)), as anion donors (Figure S1, Supporting Information). Only ten SAAILs, namely [DBN][Pro], [DBU][Pro], [DBN][Asp], [DBU][Asp], [DBN][Glu], [DBU][Glu], [DBN][Thr], [DBU][Thr], [DBN][Ser], and [DBU][Ser], were obtained (Figure 2b; Figure S2, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Section: Synthesis and Characterization Of Saailsmentioning

confidence: 99%

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Efficient Cellulose Dissolution and Film Formation Enabled by Superbase Amino Acid Ionic Liquids

Zhao

Shuai

et al. 2023

Macromol. Rapid Commun.

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Cellulose is a promising feedstock for the production of sustainable materials. To fully utilize its potential, exploring efficient cellulose solvents is a paramount prerequisite. In this study, ten superbase amino acid ionic liquids (SAAILs) are synthesized using 1,5‐diazabicyclo[4.3.0]non‐5‐ene (DBN) and 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU) with different amino acid anions via a simple neutralization method. The properties of these SAAILs, such as viscosity and glass transition temperature, varied with their cation and anion structures. The ability of the SAAILs to dissolve cellulose is related to their Kamlet–Taft parameters, particularly hydrogen bond basicity (β). The main driving force for cellulose dissolution in SAAILs is thought to be hydrogen bonding interactions between SAAILs and cellulose hydroxyl groups. Four SAAILs composed of DBN or DBU cations and proline, or aspartic acid anions are identified as promising solvents for preparing regenerated cellulose films (RCFs). The RCF prepared from [DBN]Proline(Pro) showed a favorable combination of high tensile strength (76.9 MPa), high Young's modulus (5201.2 MPa), good transparency (≈70% at 550 nm), and smooth surface morphology. These halogen‐ and metal‐free SAAILs show the potential to provide a new avenue for cellulose processing.

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Section: Resultsmentioning

confidence: 99%

Section: Synthesis and Characterization Of Saailsmentioning

confidence: 99%

Efficient Cellulose Dissolution and Film Formation Enabled by Superbase Amino Acid Ionic Liquids

Zhao

Shuai

et al. 2023

Macromol. Rapid Commun.

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“…The Δ l g C pm θ , Δ l g H m θ ( T av ), Δ l g H m θ (298.15), and T av are listed in Table , and we compared them to our work. As far as we know, there are few reports on Δ l g H m θ ( T av ) of Imidazole-taurate ILs, including the ones we have reported before . As we have mentioned before, the difference in Δ l g H m θ ( T av ) between [COC 4 mim][Tau] and other imidazolyl ILs may be caused by the introduction of sulfur atoms.…”

Section: Enthalpy Of Vaporizationmentioning

confidence: 86%

“…av are listed in Table6, and we compared them to our work. As far as we know, there are few reports on Δ l g H m θ (T av ) of Imidazole-taurate ILs, including the ones we have reported before 63. As we have mentioned before, the difference in Δ l…”

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confidence: 82%

Thermodynamic Properties of Ether-Functionalized Ionic Liquids [COC₄mim][Tau]

Wu,

Wei,

Xuan

et al. 2024

J. Chem. Eng. Data

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The ether-functionalized ionic liquid 1-(4-methoxybutyl)-3-methylimidazolium taurine [COC 4 mim][Tau] was prepared and characterized. The density (ρ), surface tension (γ), and refractive index (n D ) were measured at 288.15−328.15 K using a standard addition method. The molar volume (V), standard entropy (S θ ), lattice energy (U lattice ), surface entropy (S a ), surface energy (E a ), and molar surface Gibbs free energy (G m,s) were calculated using the density and surface tension data. By refractive index data, the degree of molar polarization (R m ), molar polarizability (α p ), and its surface tension (γ pre ) were predicted. The results showed that its predicted value was highly similar to the measured value. Then, the variation of vapor pressure (p) of [COC 4 mim][Tau] with temperature was discussed using thermogravimetric analysis of experimental data. It was found that p increased exponentially with temperature, and compared to low temperature, a high temperature is more conducive to the increase of p for [COC 4 mim][Tau]. The enthalpy of vaporization (Δ l g H m θ (T av )) at average temperature (T av ) was calculated by combining the Langmuir equation with the Clausius−Clapeyron equation, and it was converted into the enthalpy of vaporization (Δ l g H m θ (298.15)) at ambient temperature (298.15). It is hoped that these thermodynamic properties data can provide a theoretical basis for the subsequent research.

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Determination of vapor pressure, evaporation enthalpy and polarity of imidazolium-based ionic liquids

Wu,

Wei,

Chen

et al. 2024

J Therm Anal Calorim

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A simple study on vaporization enthalpy of taurine anion-based ionic liquid

Cited by 6 publications

References 20 publications

Efficient Cellulose Dissolution and Film Formation Enabled by Superbase Amino Acid Ionic Liquids

Efficient Cellulose Dissolution and Film Formation Enabled by Superbase Amino Acid Ionic Liquids

Thermodynamic Properties of Ether-Functionalized Ionic Liquids [COC₄mim][Tau]

Determination of vapor pressure, evaporation enthalpy and polarity of imidazolium-based ionic liquids

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A simple study on vaporization enthalpy of taurine anion-based ionic liquid

Cited by 6 publications

References 20 publications

Efficient Cellulose Dissolution and Film Formation Enabled by Superbase Amino Acid Ionic Liquids

Efficient Cellulose Dissolution and Film Formation Enabled by Superbase Amino Acid Ionic Liquids

Thermodynamic Properties of Ether-Functionalized Ionic Liquids [COC4mim][Tau]

Determination of vapor pressure, evaporation enthalpy and polarity of imidazolium-based ionic liquids

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Thermodynamic Properties of Ether-Functionalized Ionic Liquids [COC₄mim][Tau]