1
|
Dai D, Cao B, Hao XL, Yu ZW. Transition Mechanism from the Metastable Two-Dimensional Gel to the Stable Three-Dimensional Crystal of Imidazolium-Based Ionic Liquids. J Phys Chem B 2023; 127:7323-7333. [PMID: 37560895 DOI: 10.1021/acs.jpcb.3c02720] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
One important quest for making high quality materials with amphiphiles is to understand how a disordered self-assembly changes to a stable crystalline state. Herein, we addressed the basic question by investigating the phase transition mechanism of imidazolium-based ionic liquid (IL) [C16mim]Br, using time-resolved small- and wide-angle X-ray scattering (SAXS-WAXS), differential scanning calorimetry, and Fourier transform infrared spectroscopy techniques. Totally, a hexagonal phase, two lamellar-gel phases, and three lamellar-crystalline phases were observed, showing the special polymorphism of the system. It was demonstrated that at low concentrations the two-dimensional gel phase (Lβ1) transforms into the most stable lamellar-crystal phase (Lc3) through two intermediate crystalline phases Lc1 and Lc2. At high concentrations, the Lβ1 phase changes to a condensed lamellar gel phase (Lβ2) before changing to Lc2 and eventually to Lc3. Comparative studies using [C16mim]Cl and [C16mim]NO3 unveiled that the interactions between the counterions and the headgroups of the IL, as well as the dehydration process, govern the nucleation process of Lc3 and thus the formation of the crystal. The in-depth investigation on the transition mechanism and the phase polymorphism in the present work advances our understanding of the crystallization of amphiphilic ionic liquids in dispersions and would promote future applications.
Collapse
Affiliation(s)
- Dong Dai
- MOE Key Laboratory on Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Bobo Cao
- MOE Key Laboratory on Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiao-Lei Hao
- MOE Key Laboratory on Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhi-Wu Yu
- MOE Key Laboratory on Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| |
Collapse
|
2
|
Viradiya RA, Patel N, Aswal VK, Patel VK, Panjabi SH. Investigating the Influence of Aromatic Counterions on the Micellar Structure and Aggregation Behavior of Morpholinium-Based Surface-Active Ionic Liquids in an Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11684-11693. [PMID: 37549381 DOI: 10.1021/acs.langmuir.3c01257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Two morpholinium-based surface-active ionic liquids (SAILs) with aromatic counterions were synthesized, namely, n-dodecyl-n-methylmorpholinium salicylate [C12mmor][Sal] and n-dodecyl-n-methylmorpholinium 3-hydroxy-2-naphthoate [C12mmor][3-h-2-n], and explored their aggregation behavior in aqueous solutions systematically. Electrical conductivity, small-angle neutron scattering (SANS), surface tension (ST), and UV-vis spectroscopy measurements were employed to determine various thermodynamic, micellar, and interfacial parameters, like the degree of counterion binding (β), critical micelle concentration (CMC), minimum area per molecule (Amin), surface excess concentration (Γmax), standard Gibbs free energy of adsorption (ΔGad0), aggregation number (Nagg), standard Gibbs free energy of micellization (ΔGm0), standard enthalpy of micelle formation (ΔHm0), and the standard entropy of micellization (ΔSm0) in an aqueous solution. Incorporating the aromatic counterions favors significantly excellent micellization properties over conventional halogenated SAILs such as [C12mmor][Br]. SANS analysis revealed that upon changing the counterion from salicylate to 3-hydroxy-2-naphthoate, the structure changed from prolate ellipsoidal micelles to large unilamellar vesicles. Also, increasing the concentration in the case of [C12mmor][Sal] resulted in a lower aggregation number.
Collapse
Affiliation(s)
- Ravi A Viradiya
- Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT University, Changa 388421, Gujarat, India
| | - Niraj Patel
- Organic Chemistry Department, Institute of Science and Technology for Advanced Research (ISTAR), The CVM University, Vallabh Vidyanagar, Anand 388120, Gujarat, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Center (BARC), Trombay, Mumbai 400085, India
| | - Vaibhav K Patel
- Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT University, Changa 388421, Gujarat, India
| | - Sanjay H Panjabi
- Department of Chemical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT University, Changa 388421, Gujarat, India
| |
Collapse
|
3
|
Zhou G, Jiang K. Formation and Structure of Nanotubes in Imidazolium-Based Ionic Liquid Aqueous Solution. ACS OMEGA 2022; 7:45598-45608. [PMID: 36530223 PMCID: PMC9753178 DOI: 10.1021/acsomega.2c06381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
Self-assembled structures have attracted much attention for their potential applications in biological and electrochemical studies. Understanding the aggregation mechanism is necessary for utilizing the structures and improving the properties. In this study, the tubular cluster aggregations formed by the 1-dodecyl-3-methylimidazolium salicylate ([C12mim][Sal]) have been studied by molecular dynamics simulations. The rod-like and funnel-shaped structures were observed during the simulations, and finally, the nanotube structure enclosed by a bilayer membrane was formed. For the first time, the point cloud fitting method was used to obtain the axis equation of the tubular cluster. Based on the equation, the structure of tubular clusters was analyzed in detail. The imidazolium ring and anions were distributed at the ionic liquid-water interface, while the dodecyl groups were buried in the nanotube membrane away from the water. Electrostatic interactions between cations and anions played a dominant role in stabilizing the structure of the nanotube. The tubular cluster size, membrane thickness, and permeability of water molecules through the membrane of the cluster were also calculated. Furthermore, the orientation analysis revealed that multitudinous aggregation structures could be formed by the long alkyl chain in aqueous solution, which might be beneficial for the strengthening and separating processes.
Collapse
Affiliation(s)
- Guohui Zhou
- School
of Chemistry and Chemical Engineering, Qingdao
University, Qingdao, Shandong 266071, China
| | - Kun Jiang
- Qingdao
University, Qingdao, Shandong 266071, China
| |
Collapse
|
4
|
Modulating aggregation behaviour and surface properties of cationic & anionic surfactant with surface active ionic liquid 1-decyl-3-methylimidazolium chloride [C10mim][Cl]: Role of surfactant head group. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
5
|
Effect of hydroxyl group on foam features of hydroxyl-based anionic ionic liquid surfactant: Experimental and theoretical studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
6
|
A density functional theory study on the water aggregation behaviour of fatty acid-based anionic surface active ionic liquids. Struct Chem 2022. [DOI: 10.1007/s11224-022-01910-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
|
8
|
Experimental and DFT studies on foam performances of lauryl ether sulfate-based anionic surface active ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
9
|
Ling T, Li P, Yang X, Li J, Jiang Z, Ren X, Guo C. Preparation, adsorption and aggregation behavior of sodium oleyl sulfate with high double bond retention. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Chakraborty G, Bardhan S, Saha SK. Unfolding of Tryptophanoctyl Ester and Elastic Deformation of Host Micelles via RR' 3 N + ⋅⋅⋅π Interaction: Conceivable Relevance to Wrapping Process of Receptor Mediated Endocytosis. Chemphyschem 2021; 22:2535-2549. [PMID: 34561950 DOI: 10.1002/cphc.202100582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Indexed: 11/11/2022]
Abstract
The interfacial properties of the mixed amphiphiles are modified by a stronger cation-π interaction between the quaternary ammonium head group of CTAB and the π-face of TROE, compared to the tyrosine analogue (TYOE). This eventually triggers a morphology transition through elastic deformation of the spherical micelles of CTAB to cylindrical/wormlike micelles. The unfolding of TROE and the molecular interactions in the nanoenvironment have been recognized by NMR spectroscopy and the physical characteristics of the entangled wormlike micelles are investigated by high resolution transmission electron microscopy (HRTEM), whereas the complex fluidic feature is examined by dynamic rheological measurements. Morphology tuning of the soft nanoaggregates of zwitterionic dodecylphosphocholine by the tryptophan analogue via choline-π interaction has unique biological consequences and we consider the significance of such interactions in facilitating endocytosis of a virion/nano particle(NP) in terms of a quantitative model. The implication in future research on drug development strategies is discussed.
Collapse
Affiliation(s)
- Gulmi Chakraborty
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Soumik Bardhan
- BJM School of Biosciences and Department of Biotechnology, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Swapan K Saha
- Department of Chemistry, University of North Bengal, Darjeeling, 734 013, India
| |
Collapse
|
11
|
Pan H, Nie S, Kou P, Wang L, Wang Z, liu Z, Zhao C, Wang X, Fu Y. An enhanced extraction and enrichment phytochemicals from Rosa roxburghii Tratt leaves with ultrasound-assist CO2-based switchable-solvent and extraction mechanism study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116591] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
12
|
Sastry NV, Trivedi PA. Drug anion based surface active ionic liquids: Molecular interactions, surface activity and micellization behavior in aqueous solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
13
|
Cao H, Hu Y, Xu W, Wang Y, Guo X. Recent progress in the assembly behavior of imidazolium-based ionic liquid surfactants. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114354] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
14
|
Rodríguez-Fernández CD, Montes-Campos H, López-Lago E, de la Fuente R, Varela LM. Microstructure, dynamics and optical properties of metal-doped imidazolium-based ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
15
|
Yan Z, Qian F, Sun H, Lu X, Li Y, Lv H, Dai C, Jiao M. Study on the mechanism of the effect of coumaric acid with different hydroxyl substituent positions on constructing light-regulated wormlike micelles. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
16
|
Hu Y, Han J, Guo R. Influence of the Alkyl Chain Length of the Imidazole Ionic Liquid-Type Surfactants on Their Aggregation Behavior with Sodium Dodecyl Sulfate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10494-10503. [PMID: 32787020 DOI: 10.1021/acs.langmuir.0c01673] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The influence of the alkyl chain length of the ionic liquid surfactants 1-hexadecyl-3-alkyl imidazolium bromide [C16imCn]Br (n = 2-16) on their aggregation behavior with sodium dodecyl sulfate (SDS) in water was studied. The rheological properties, thermostability, and microstructure of the samples were characterized via a combination of rheology, cryo-transmission electron microscopy, polarization optical microscopy, and small-angle X-ray scattering. Upon the addition of SDS, the [C16imCn]Br (n = 2, 4, 6) rodlike micelles transit into the gels with high water content. The effects of molar ratio and alkyl chain length on the viscoelasticity and thermal stability of the SDS/[C16imCn]Br (n = 2, 4, 6) gels were studied. However, the [C16imCn]Br (n = 8, 10, 12, 14, 16) rodlike micelles precipitate with the addition of SDS. The [C16imCn]Br (n = 10, 12, 14, 16) gels transit to the rodlike micelles with the proper addition of SDS. The mechanism of the influence of the alkyl chain length of the [C16imCn]Br on their aggregation behavior with SDS was proposed.
Collapse
Affiliation(s)
- Yimin Hu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China
| |
Collapse
|
17
|
Experimental and DFT studies on surface properties of sulfonate-based surface active ionic liquids. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128258] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
18
|
Qin M, Zhong F, Sun Y, Tan X, Hu K, Zhang H, Kong M, Wang G, Zhuang L. Effect of cation substituent of dodecanesulfate-based anionic surface active ionic liquids on micellization: Experimental and theoretical studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112695] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
19
|
Jiang K, Liu X, He H, Wang J, Zhang S. Insight into the formation and permeability of ionic liquid unilamellar vesicles by molecular dynamics simulation. SOFT MATTER 2020; 16:2605-2610. [PMID: 32096807 DOI: 10.1039/c9sm02339a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Unilamellar vesicles in solution could open up new horizons for reaction and material delivery, but the formation mechanism especially for the permeability of the small molecule through the vesicle membrane is still unknown. In this study, the formation and permeability of the unilamellar vesicles formed by the ionic liquid 1-dodecyl-3-methylimidazolium salicylate ([C12mim][Sal]) have been investigated by molecular dynamics simulation. Starting from a random distribution of ionic liquids, the entire process of vesicle formation could be observed on a nanosecond time scale, during which planar and cup-like structures are formed at the intermediate stage. Energy analysis reveals that the electrostatic interactions between cations and anions play a dominant role in forming and stabilizing the vesicle. Radial density distribution functions indicate that the final stable vesicle is a spherical bilayer structure. Besides, it was found that the structure of vesicles is maintained with the increase of temperature, while the water molecules in the vesicles could be completely exchanged quickly. These results suggest that vesicles may be beneficial for the enrichment or release of molecules.
Collapse
Affiliation(s)
- Kun Jiang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China.
| | | | | | | | | |
Collapse
|
20
|
Adsorption and aggregation behavior of aliphatic alcohol polyoxyethylene ether phosphate with different ethylene oxide addition numbers. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124215] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Ning W, Wang Z, Xue Y, Wang X, Li W, Zhang Y, Zhang P, Miao S. Catalytic synergistic effects between Pt nanocrystals and elementary graphite oxides: A new insight detected by Langmuir-Blodgett technique. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
22
|
Singh O, Singla P, Aswal VK, Mahajan RK. Impact of Aromatic Counter-Ions Charge Delocalization on the Micellization Behavior of Surface-Active Ionic Liquids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14586-14595. [PMID: 31621330 DOI: 10.1021/acs.langmuir.9b02695] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The nature of counter-ions governs the micellar and structural characteristics of surface-active ionic liquids (SAILs). Especially, the introduction of aromatic counter-ions significantly increases their surface adsorption and induces the formation of various types of aggregates like prolate ellipsoidal micelles, rodlike micelles, vesicles, lamellars, etc. The present study reports the role of charge delocalization of two different aromatic counter-ions in the micellization behavior of their respective SAILs in aqueous medium. For this purpose, we have synthesized two SAILs, namely, 1-tetradecyl-3-methylimidzolium phenolate [C14mim][PO] and 1-tetradecyl-3-methylimidzolium benzoate [C14mim][BZ]. The O-atom of phenolate (PO-) possesses negative charge, which is delocalized on its phenyl ring. Conversely, the negative charge of benzoate (BZ-) is not delocalized on its phenyl ring. The more hydrophobic BZ- counter-ion increases the hydrophobic interactions and reduces the electrostatic repulsions more efficiently as compared to PO-, which results in a lower critical micelle concentration (cmc) of [C14mim][BZ] than that of [C14mim][PO]. Interfacial properties obtained by tensiometry reveal better surface activity and absorption efficiency of [C14mim][BZ] as compared to [C14mim][PO]. The increase of cmc and degree of counter-ion binding (β) with the rise of temperature for both SAILs has been observed by conductometry. The decrease in the polarity of pyrene microenvironment explains the higher compactness of [C14mim][BZ] aggregates than that of [C14mim][PO], observed by fluorimetry. The position of PO- and BZ- is in the stern and palisade layers of C14mim+ aggregates, respectively, located by 1H NMR. The existence of prolate ellipsoidal micelles for both SAILs has been established by small-angle neutron scattering measurements. Thus, the interfacial and bulk properties of [C14mim][PO] lie somewhere in between those of the SAILs having perfect aromatic counter-ions, [C14mim][BZ], and the SAILs having regular inorganic counter-ions like Cl-, Br-, etc.
Collapse
Affiliation(s)
- Onkar Singh
- Department of Chemistry, UGC-Centre for Advanced Studies-I , Guru Nanak Dev University , Amritsar 143005 , India
| | - Pankaj Singla
- Department of Chemistry, UGC-Centre for Advanced Studies-I , Guru Nanak Dev University , Amritsar 143005 , India
| | - Vinod Kumar Aswal
- Solid State Physics Division , Bhabha Atomic Research Centre , Mumbai 400085 , India
| | - Rakesh Kumar Mahajan
- Department of Chemistry, UGC-Centre for Advanced Studies-I , Guru Nanak Dev University , Amritsar 143005 , India
| |
Collapse
|
23
|
Li Q, Tong K, Qiu J, Yan M, Tian Q, Chen X, Yue X. Molecular packing of surface active ionic liquids in a deep eutectic solvent: a small angle X-ray scattering (SAXS) study. SOFT MATTER 2019; 15:5060-5066. [PMID: 31180406 DOI: 10.1039/c9sm00760a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During the past decade, deep eutectic solvents (DESs) have shown promising application in the self-assembly of surfactants. Various aggregates such as micelles, vesicles, lyotropic liquid crystals, microemulsions and gels have been reported. In this research, the phase behaviours of imidazolium surface active ionic liquids (SAILs) CnmimBr (n = 12, 14, 16) were investigated in ChG. With the help of small angle X-ray scattering (SAXS), the types and structure parameters of aggregates were determined. The molecular packing of SAILs was influenced by the solvophobic chain length, surfactant concentration, temperature and solvent, accounting for their different aggregation behaviours. This study would give a good description of the molecular packing of surfactants in DESs.
Collapse
Affiliation(s)
- Qintang Li
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621000, China.
| | | | | | | | | | | | | |
Collapse
|
24
|
Ali S, Badshah A, Hussain H, Fatima S, Shah AH, Shah A, Saifullah S, Shah MR. Synthesis, Characterization, and Computational Study of New Ferrocene‐Based Schiff Bases as Potential Nonionic Surfactants. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shazaib Ali
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
| | - Amin Badshah
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
| | - Hamid Hussain
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
| | - Saira Fatima
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
| | - Aamir Hassan Shah
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
| | - Afzal Shah
- Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
| | - Salim Saifullah
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS)University of Karachi Karachi Pakistan
| | - Muhammad Raza Shah
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS)University of Karachi Karachi Pakistan
| |
Collapse
|
25
|
How cationic and anionic portions of an imidazolium-based ionic liquid interact with molecular liquids: Insights from density functional theory calculations. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
26
|
Shahzad S, Shah A, Kowsari E, Iftikhar FJ, Nawab A, Piro B, Akhter MS, Rana UA, Zou Y. Ionic Liquids as Environmentally Benign Electrolytes for High-Performance Supercapacitors. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800023. [PMID: 31565352 PMCID: PMC6383960 DOI: 10.1002/gch2.201800023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 09/14/2018] [Indexed: 05/07/2023]
Abstract
Electrochemical capacitors (ECs) are a vital class of electrical energy storage (EES) devices that display the capacity of rapid charging and provide high power density. In the current era, interest in using ionic liquids (ILs) in high-performance EES devices has grown exponentially, as this novel versatile electrolyte media is associated with high thermal stability, excellent ionic conductivity, and the capability to withstand high voltages without undergoing decomposition. ILs are therefore potentially useful materials for improving the energy/power performances of ECs without compromising on safety, cyclic stability, and power density. The current review article underscores the importance of ILs as sustainable and high-performance electrolytes for electrochemical capacitors.
Collapse
Affiliation(s)
- Suniya Shahzad
- Department of ChemistryQuaid‐i‐Azam University45320IslamabadPakistan
| | - Afzal Shah
- Department of ChemistryQuaid‐i‐Azam University45320IslamabadPakistan
- Department of Physical and Environmental SciencesUniversity of Toronto ScarboroughTorontoM1C 1A4Canada
| | - Elaheh Kowsari
- Department of ChemistryAmirkabir University of TechnologyTehran159163‐4311Iran
| | | | - Anum Nawab
- Department of ChemistryQuaid‐i‐Azam University45320IslamabadPakistan
| | - Benoit Piro
- Univ. Paris DiderotSorbonne Paris CitéITODYSUMR 7086 CNRS, 15 rue J‐A de Baïf75205Paris Cedex 13France
| | | | - Usman Ali Rana
- College of EngineeringKing Saud UniversityPO‐BOX 800Riyadh11421Kingdom of Saudi Arabia
| | - Yongjin Zou
- Guangxi Key Laboratory of Information MaterialsGuilin University of Electronic TechnologyGuilin541004P. R. China
| |
Collapse
|
27
|
Singh G, Komal, Singh M, Singh O, Kang TS. Hydrophobically Driven Morphologically Diverse Self-Assembled Architectures of Deoxycholate and Imidazolium-Based Biamphiphilic Ionic Liquids in Aqueous Medium. J Phys Chem B 2018; 122:12227-12239. [PMID: 30525630 DOI: 10.1021/acs.jpcb.8b10161] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Biamphiphilic ionic liquids (BAILs) having amphiphilic cation and anion are thought to exhibit improved surface activity and colloidal stability to be utilized in different applications. For their effective use, a control over synergetic hydrophobic and electrostatic interactions between oppositely charged ions along with the possibility of tuning of hydrophobicity of the core of aggregates is required. Focusing on this, new BAILs comprising a bile salt anion, deoxycholate, [DC]-, and 1-alkyl-3-methylimidazolium cations, [C nmim]+ ( n = 2, 4, 6, 8, and 12), were synthesized and characterized for their behavior at air-solution interface as well as in bulk. The synthesized BAILs exhibit high surface activity and self-assemble in the form of different architectures ranging from nanosheets (NSs), nanorods, and vesicles with varying hydrophobicities of the formed core of aggregates, depending on the length of alkyl chain of [C nmim]+. Analysis of various parameters obtained from investigated techniques suggested the changing role of [C nmim]+ from a counterion ( n = 2 and 4) to a cosurfactant ( n = 8 and 12) via a borderline case of [C6mim]+. This changeover in the nature of counterion controlled by hydrophobicity of alkyl chain resulted in morphological diversification in self-assembled architectures via varying set of interactions. It is believed that the present work would offer new perspectives in the self-assembly phenomenon of surfactants in general and surface active ionic liquids in particular to devise new strategies for inducing morphology-dependent functionality in self-assembled structures of BAILs.
Collapse
Affiliation(s)
- Gurbir Singh
- Department of Chemistry, UGC-Centre for Advanced Studies-II , Guru Nanak Dev University , Amritsar 143005 , India
| | - Komal
- Department of Chemistry, UGC-Centre for Advanced Studies-II , Guru Nanak Dev University , Amritsar 143005 , India
| | - Manpreet Singh
- Department of Chemistry, UGC-Centre for Advanced Studies-II , Guru Nanak Dev University , Amritsar 143005 , India
| | - Ormanpreet Singh
- Department of Chemistry, UGC-Centre for Advanced Studies-II , Guru Nanak Dev University , Amritsar 143005 , India
| | - Tejwant Singh Kang
- Department of Chemistry, UGC-Centre for Advanced Studies-II , Guru Nanak Dev University , Amritsar 143005 , India
| |
Collapse
|
28
|
Sun P, Wu A, Sun N, Qiao X, Shi L, Zheng L. Multiple-Responsive Hierarchical Self-Assemblies of a Smart Supramolecular Complex: Regulation of Noncovalent Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2791-2799. [PMID: 29397743 DOI: 10.1021/acs.langmuir.7b03900] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We herein report a smart amphiphilic supramolecular complex ([MimA-EDA-MimA]@[DBS]2) with stimuli-responsive self-assembly, constructed by 3-(3-formyl-4-hydroxybenzyl)-1-methylimidazolium chloride (MimACl), sodium dodecyl benzene sulfonate (SDBS), and ethylenediamine (EDA). The self-assembly of [MimA-EDA-MimA]@[DBS]2 shows triple-sensitivities in response to pH, concentration, and salt. At a low pH, only micelles are formed, which can transform into vesicles spontaneously when the pH increases to 11.8. Vesicles can gradually fuse into vesicle clusters and elongated assemblies with increasing concentration of [MimA-EDA-MimA]@[DBS]2. Chainlike aggregates, ringlike aggregates, or giant vesicles can be formed by adding inorganic salts (i.e., NaCl and NaNO3), which could be derived from the membrane fusion of vesicles. The noncovalent interactions, including π-π stacking, hydrogen bonding, and electrostatic interactions, were found to be responsible for the topology evolution of assemblies. Thus, it provides an opportunity to construct smart materials through the regulation of the role of noncovalent interactions in self-assembly.
Collapse
Affiliation(s)
- Panpan Sun
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, China
| | - Aoli Wu
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, China
| | - Na Sun
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, China
| | - Xuanxuan Qiao
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, China
| | - Lijuan Shi
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology , Taiyuan 030024, China
| | - Liqiang Zheng
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, China
| |
Collapse
|
29
|
Panda S, Kundu K, Basaiahgari A, Singh AP, Senapati S, Gardas RL. Aggregation behaviour of biocompatible choline carboxylate ionic liquids and their interactions with biomolecules through experimental and theoretical investigations. NEW J CHEM 2018. [DOI: 10.1039/c8nj00336j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The self-assembly of long-chain choline carboxylates accompanied by their interaction with BSA protein were investigated with focus on environmental sustainability.
Collapse
Affiliation(s)
- Somenath Panda
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Kaushik Kundu
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Anusha Basaiahgari
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Akhil Pratap Singh
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
- Department of Biotechnology
| | - Sanjib Senapati
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Ramesh L. Gardas
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| |
Collapse
|
30
|
Ma H, Ke H, Wang T, Xiao J, Du N, Yu L. Self-assembly of imidazolium-based surface active ionic liquids in aqueous solution: The role of different substituent group on aromatic counterions. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.116] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
31
|
Chakraborty G, Chowdhury MP, Saha SK. Solvent-Induced Molecular Folding and Self-Assembled Nanostructures of Tyrosine and Tryptophan Analogues in Aqueous Solution: Fascinating Morphology of High Order. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:6581-6594. [PMID: 28595386 DOI: 10.1021/acs.langmuir.7b01651] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hydrophobic derivatives of tyrosine and tryptophan, viz. octyl and dodecyl esters of tyrosine and octyl ester of tryptophan, are synthesized, and the interfacial and bulk properties in aqueous media are investigated as models for the membrane proteins. Molecular modeling by the density functional theory method is carried out to understand the molecular conformation and geometry for the purpose of determining the packing parameters. Water-induced molecular folding of the esters of both tyrosine and tryptophan, as observed using rotating frame nuclear Overhauser effect spectroscopy, indicates that the segregation of the hydrophobic and hydrophilic blocks in water is the key to the development of fascinating interfacial property displayed by the aromatic amino acid esters. The unusually high-order morphology of the aggregates, as observed using high-resolution transmission electron microscopy, is highly uncommon for single-chain amphiphiles and points to the fact that the self-assembly behavior of the present systems resembles that of block copolymers. The study of the growth of mesosized hollow aggregates with internal bilayer structures from tyrosine and tryptophan-based model systems would add to the understanding of biochemistry and biotechnology relevant to the cell membrane. The potential of biocompatible nanostructured motifs as the drug carriers is discussed. The highly functional role played by the aromatic amino acids at the membrane-water interface will be considered with the present amphiphilic models for future perspective.
Collapse
Affiliation(s)
- Gulmi Chakraborty
- Department of Chemistry, University of North Bengal , Darjeeling 734 013, India
| | | | - Swapan K Saha
- Department of Chemistry, University of North Bengal , Darjeeling 734 013, India
| |
Collapse
|
32
|
Affiliation(s)
- Kun Dong
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaomin Liu
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Haifeng Dong
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiangping Zhang
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Suojiang Zhang
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
33
|
Sustainable synthetic approaches using [C16Im][Oxa] as a flexible organocatalyst and DFT studies toward 3,4-dihydropyrimidinones and benzoxazines. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-016-1894-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
34
|
Usma CL, Pacios IE, Renamayor CS. Lyotropic Lamellar Structures of a Long-Chain Imidazolium and Their Application as Nanoreactors for X-ray-Initiated Polymerization. J Phys Chem B 2017; 121:2502-2510. [PMID: 28240884 DOI: 10.1021/acs.jpcb.6b12101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The lyotropic behavior of the ternary system formed by 1-tetradecyl-3-methylimidazolium chloride, 1-decanol, and water is investigated. A lamellar mesophase is formed for a wide range of compositions and is characterized by polarized optical microscopy, low-temperature scanning electron microscopy, small- and wide-angle X-ray scattering with synchrotron radiation, and differential scanning calorimetry. This phase presents onionlike structures. Two lamellar structures are formed: an Lα mesophase between 25 and 50 °C, with an isobaric thermal expansivity of the bilayer thickness of -3.2 × 10-3 K-1, and a lamellar gel phase, when the temperature decreases below 25 °C. This new medium is employed to perform in situ X-ray-initiated polymerization of N-isopropylacrylamide. When the monomer is incorporated in the lamellar structure, it is distributed between the water layer and bilayer interface and its polymerization can be followed by variations in the diffractograms with time.
Collapse
Affiliation(s)
- Cesar L Usma
- Departamento de Ciencias y Técnicas Fisicoquímicas, Facultad de Ciencias, UNED , Paseo Senda del Rey, 9, 28040 Madrid, Spain
| | - Isabel E Pacios
- Departamento de Ciencias y Técnicas Fisicoquímicas, Facultad de Ciencias, UNED , Paseo Senda del Rey, 9, 28040 Madrid, Spain
| | - Carmen S Renamayor
- Departamento de Ciencias y Técnicas Fisicoquímicas, Facultad de Ciencias, UNED , Paseo Senda del Rey, 9, 28040 Madrid, Spain
| |
Collapse
|
35
|
Prikhod'ko SA, Shabalin AY, Bardin VV, Eltsov IV, Shundrina IK, Parmon VN, Adonin NY. 1-Alkyl-3-methylimidazolium 4-organyloxy-2,3,5,6-tetrafluorophenyltrifluoroborates as a new platform for ionic liquids with specific properties. RSC Adv 2017. [DOI: 10.1039/c7ra01709j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A new synthetic platform for ionic liquids (ILs) with specific properties was suggested based on the polyfluorophenyltrifluoroborate anions, Q[4-XC6F4BF3] (X = F, RO).
Collapse
Affiliation(s)
| | | | - Vadim V. Bardin
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | | | - Inna K. Shundrina
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | | | | |
Collapse
|
36
|
Zhou L, Tian T, Xiao J, Wang T, Yu L. Aggregation behavior of pyrrolidinium-based surface active ionic liquids in H 2 O-EAN binary solvents. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.10.142] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
37
|
Lederle F, Meyer F, Kaldun C, Namyslo JC, Hübner EG. Sonogashira coupling in 3D-printed NMR cuvettes: synthesis and properties of arylnaphthylalkynes. NEW J CHEM 2017. [DOI: 10.1039/c6nj03614g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A set of push–pull substituted arylnaphthylalkynes has been synthesized under inert gas conditions in 3D-printed cuvettes out of NMR-transparent polyamide and their optical properties were investigated.
Collapse
Affiliation(s)
- Felix Lederle
- Institute of Organic Chemistry
- Clausthal University of Technology
- D-38678 Clausthal-Zellerfeld
- Germany
| | - Frederick Meyer
- Institute of Organic Chemistry
- Clausthal University of Technology
- D-38678 Clausthal-Zellerfeld
- Germany
| | - Christian Kaldun
- Institute of Organic Chemistry
- Clausthal University of Technology
- D-38678 Clausthal-Zellerfeld
- Germany
| | - Jan C. Namyslo
- Institute of Organic Chemistry
- Clausthal University of Technology
- D-38678 Clausthal-Zellerfeld
- Germany
| | - Eike G. Hübner
- Institute of Organic Chemistry
- Clausthal University of Technology
- D-38678 Clausthal-Zellerfeld
- Germany
| |
Collapse
|
38
|
Zhou J, Liu X, Zhang S, Zhang X, Yu G. Effect of small amount of water on the dynamics properties and microstructures of ionic liquids. AIChE J 2016. [DOI: 10.1002/aic.15594] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jing Zhou
- Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering, Beijing University of Chemical TechnologyBeijing100029P. R. China
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process EngineeringChinese Academy of SciencesBeijing100190 P.R. China
| | - Xiaomin Liu
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process EngineeringChinese Academy of SciencesBeijing100190 P.R. China
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process EngineeringChinese Academy of SciencesBeijing100190 P.R. China
| | - Xiangping Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process EngineeringChinese Academy of SciencesBeijing100190 P.R. China
| | - Guangren Yu
- Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering, Beijing University of Chemical TechnologyBeijing100029P. R. China
| |
Collapse
|
39
|
Tian T, Hu Q, Wang Y, Gao Y, Yu L. Effect of Imidazolium-Based Surface-Active Ionic Liquids on the Orientation of Liquid Crystals at Various Fluid/Liquid Crystal Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11745-11753. [PMID: 27783527 DOI: 10.1021/acs.langmuir.6b02756] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of imidazolium-based surface-active ionic liquids (IM-SAILs), viz., single-chained IM-SAILs, 1-alkyl-3-methylimidazolium bromide ([Cnmim]Br, n = 12, 14, 16), 1-dodecyl-3-methylimidazolium salicylate ([C12mim]Sal), 1-dodecyl-3-methylimidazolium 3-hydroxy-2-naphthoate ([C12mim]HNC), 1-dodecyl-3-methylimidazolium cinnamate ([C12mim]CA), 1-dodecyl-3-methylimidazolium para-hydroxy-cinnamate ([C12mim]PCA), gemini IM-SAIL, and 1,2-bis(3-dodecylimidazolium-1-yl)ethane bromide ([C12-2-C12im]Br2), along with three short-chained ionic liquids (ILs) [ethylammonium nitrate (EAN), propylammonium nitrate (PAN), and butylammonium nitrate (BAN)] were synthesized and applied to nematic liquid crystal (LC)/fluid interfaces. First, we evaluated the influence of the length and number of aliphatic chains as well as the counterion in the IM-SAIL structures on the anchoring of LCs at the aqueous/LC interface. It was observed that the threshold concentration of [Cnmim]Br (n = 12, 14, 16) decreased with the increase in aliphatic chain length. And double-chained [C12-2-C12im]Br2 has a far lower threshold concentration than single-chained [C12mim]Br. But the alteration of counterions (e.g., Br- and aromatic counterions) scarcely affected the anchoring of LCs at the interface. Second, we investigated the alignment of LCs at the diverse IL/LC interfaces in the presence of IM-SAILs. It is found that the variations in both aliphatic chain length and number can remarkably change the trigger points of the orientational transition of LCs at the EAN/LC interface. Specifically, with a slight increase in the alkyl chain length of short-chained ILs, as the fluid medium, the orientation of LCs varied tremendously at the IL/LC interface. Therefore, the higher threshold concentration of IM-SAILs and the corresponding greater stability in the optical appearance of LCs at the EAN/LC interface compared to that of the aqueous/LC interface can be ascribed to the discrepancy in the microstructure of water and IL. Finally, we verified that the volume ratio of H2O to EAN could more dramatically affect the alignment of LCs than the change in IM-SAIL concentration in aqueous solution. This work first illustrated the impact of SAIL structure on the LCs orientation at the aqueous/LC, IL/LC, and H2O-IL mixture/LC interfaces, which will inspire us to obtain a stabilized molecular alignment of LCs at the IL/LC interfaces and to further design novel functionalized SAIL molecules for various chemical and biological applications.
Collapse
Affiliation(s)
- Tongtong Tian
- Key Laboratory of Colloid and Interface Chemistry, Shandong University , Ministry of Education, Jinan 250100, PR China
- School of Chemistry and Chemical Engineering, Qufu Normal University , Qufu 273165, PR China
| | - Qiongzheng Hu
- Department of Chemistry, University of Houston , Houston, Texas 77204, United States
| | - Yi Wang
- Key Laboratory of Colloid and Interface Chemistry, Shandong University , Ministry of Education, Jinan 250100, PR China
| | - Yan'an Gao
- China Ionic Liquid Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, PR China
| | - Li Yu
- Key Laboratory of Colloid and Interface Chemistry, Shandong University , Ministry of Education, Jinan 250100, PR China
- School of Chemistry and Chemical Engineering, Qufu Normal University , Qufu 273165, PR China
| |
Collapse
|
40
|
Usma CL, Renamayor CS, Pacios IE. Structural behavior of the lamellar mesophase formed by ternary mixtures of a two-tailed ionic liquid, 1-decanol and water. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
41
|
Sastry NV, Singh DK. Surfactant and Gelation Properties of Acetylsalicylate Based Room Temperature Ionic Liquid in Aqueous Media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10000-10016. [PMID: 27541982 DOI: 10.1021/acs.langmuir.6b02074] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An amphiphilic room temperature ionic liquid (RTIL) containing acetylsalicylate anion of type 1-dodecyl-1-methylpiperidinium acetylsalicylate, [C12mpip][AcSa], is synthesized from the precursor [C12mpip][Cl] by an ion exchange process. The sample is characterized, and its surface active and aggregation behavior in water has been studied and explained. The critical aggregation concentrations (CACs) are determined by a variety of methods, namely, electrical conductivity, surface tension, steady state florescence, and isothermal titration calorimetry (ITC) at different temperatures. As compared to its precursor, [C12mpip][AcSa] has low CAC values, indicating enhanced favorable interactions between the [alkylmpip]+ cation···bulky [AcSa]- anion and also hydrogen bonding of both of the ions with water. The free energy of aggregation ΔG0a is always negative, and both enthalpy and entropy of aggregation drive the aggregation process. The micelle-like aggregates are ellipsoidal in shape. The aggregation numbers are determined from translational diffusion coefficients and florescence quenching measurements. Aggregates of [C12mpip][AcSa] are larger than those of its precursor IL with chloride anion. Therefore, it is evident that the close interactions between the ion pairs of [C12mpip]+···[AcSa]- facilitate packing of more molecules in an aggregate. The steady state and oscillatory rheology measurements in aqueous solutions consisting of mixtures of [C12mpip][AcSa] and sodium salicylate (SS), an hydrotope additive, were carried out. The analysis of zero shear viscosity and moduli properties as a function of concentration and temperature reveals that the addition of SS promotes the growth of small ellipsoid aggregates into large worm-like structures with a typical viscoelastic gel behavior. The moduli properties vs temperature profiles are complex and no hysteresis was produced in heating and cooling modes, suggesting the thermoirreversibile and complex nature of the network structures. The release of the acetylsalicylate anion from the gels could be triggered by simple dilution, and the release occurs due to surface erosion and demicellization.
Collapse
Affiliation(s)
- Nandhibatla V Sastry
- Department of Chemistry, Sardar Patel University , Vallabh Vidyanagar 388120, Gujarat, India
| | - Dipak K Singh
- Department of Chemistry, Sardar Patel University , Vallabh Vidyanagar 388120, Gujarat, India
| |
Collapse
|
42
|
Chabba S, Vashishat R, Mahajan RK. Influence of head group on the interactional behavior of cationic surface active ionic liquids with pluronic F108 in aqueous medium. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
43
|
Synthesis and aggregation behaviors of disulfonate gemini surfactant with double hexadecyl tails. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.03.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
44
|
Tian T, Qin J, Gao Y, Yu L. Experimental and DFT studies on aggregation behavior of dodecylsulfonate-based surface active ionic liquids in water and ethylammonium nitrate. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.074] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
45
|
Singh G, Singh G, Kang TS. Effect of alkyl chain functionalization of ionic liquid surfactants on the complexation and self-assembling behavior of polyampholyte gelatin in aqueous medium. Phys Chem Chem Phys 2016; 18:25993-26009. [DOI: 10.1039/c6cp04664a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The interactional behavior of ILSs towards gelatin forming structurally different ILS mediated self-assemblies depending on the nature of the ILS and counterion binding is shown.
Collapse
Affiliation(s)
- Gagandeep Singh
- Department of Chemistry
- UGC-Centre for Advance Studies–II
- Guru Nanak Dev University
- Amritsar
- India
| | - Gurbir Singh
- Department of Chemistry
- UGC-Centre for Advance Studies–II
- Guru Nanak Dev University
- Amritsar
- India
| | - Tejwant Singh Kang
- Department of Chemistry
- UGC-Centre for Advance Studies–II
- Guru Nanak Dev University
- Amritsar
- India
| |
Collapse
|
46
|
Banerjee C, Roy A, Kundu N, Banik D, Sarkar N. A new strategy to prepare giant vesicles from surface active ionic liquids (SAILs): a study of protein dynamics in a crowded environment using a fluorescence correlation spectroscopic technique. Phys Chem Chem Phys 2016; 18:14520-30. [DOI: 10.1039/c5cp07225e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A simple procedure for the preparation of giant vesicles using surface active ionic liquids (SAILs) has been provided in this paper.
Collapse
Affiliation(s)
- Chiranjib Banerjee
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Arpita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Niloy Kundu
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Debasis Banik
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| |
Collapse
|
47
|
Bahadur I, Kgomotso M, Ebenso EE, Redhi G. Influence of temperature on molecular interactions of imidazolium-based ionic liquids with acetophenone: thermodynamic properties and quantum chemical studies. RSC Adv 2016. [DOI: 10.1039/c6ra15476j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The thermophysical properties of a series of alkyl imidazolium-based ionic liquids with acetophenone over the wide range of composition and at (293.15, 303.15, 313.15, 323.5 and 333.15) K under atmospheric pressure is reported in this study.
Collapse
Affiliation(s)
- Indra Bahadur
- Department of Chemistry and Materials Science Innovation
- Modelling Research Focus Area
- School of Mathematical and Physical Sciences
- Faculty of Agriculture, Science and Technology
- North-West University (Mafikeng Campus)
| | - Masilo Kgomotso
- Department of Chemistry and Materials Science Innovation
- Modelling Research Focus Area
- School of Mathematical and Physical Sciences
- Faculty of Agriculture, Science and Technology
- North-West University (Mafikeng Campus)
| | - Eno E. Ebenso
- Department of Chemistry and Materials Science Innovation
- Modelling Research Focus Area
- School of Mathematical and Physical Sciences
- Faculty of Agriculture, Science and Technology
- North-West University (Mafikeng Campus)
| | - Gan Redhi
- Department of Chemistry
- Durban University of Technology
- Durban
- South Africa
| |
Collapse
|
48
|
Gehlot PS, Rao KS, Bharmoria P, Damarla K, Gupta H, Drechsler M, Kumar A. Spontaneous Formation of Multiarchitecture Vesicles of [C8mim]Br + [Na]DBS in Aqueous Medium: Synergic Interplay of Electrostatic, Hydrophobic, and π–π Stacking Interactions. J Phys Chem B 2015; 119:15300-9. [DOI: 10.1021/acs.jpcb.5b09850] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Praveen Singh Gehlot
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - K. Srinivasa Rao
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Pankaj Bharmoria
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Krishnaiah Damarla
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Hariom Gupta
- CSIR-Central Salt
and Marine Chemicals Research Institute, Council of Scientific and
Industrial Research (CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Markus Drechsler
- Universität Bayreuth, BIMF − Soft Matter Electron Microscopy, Bayreuth, D-95447, Germany
| | - Arvind Kumar
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
- CSIR-Central Salt
and Marine Chemicals Research Institute, Council of Scientific and
Industrial Research (CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| |
Collapse
|
49
|
Bi Y, Zhao L, Hu Q, Gao Y, Yu L. Aggregation Behavior of Imidazolium-Based Surface-Active Ionic Liquids with Photoresponsive Cinnamate Counterions in the Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12597-12608. [PMID: 26509235 DOI: 10.1021/acs.langmuir.5b03216] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Two imidazolium-based surface active ionic liquids (SAILs) with photoresponsive cinnamate aromatic counterions, viz. 1-dodecyl-3-methylimidazolium cinnamate ([C12mim][CA]) and 1-dodecyl-3-methylimidazolium para-hydroxy-cinnamate ([C12mim][PCA]), were newly synthesized, and their self-assembly behaviors in aqueous solutions were systematically explored. Results of surface tension and conductivity measurements show that both [C12mim][CA] and [C12mim][PCA] display a superior surface activity in aqueous solutions compared to the common imidazolium-based SAIL, 1-dodecyl-3-methylimidazolium bromide (C12mimBr), which implies the incorporation of cinnamate aromatic counterions can promote the micellar formation. Furthermore, [C12mim][CA] shows higher surface activity due to the higher hydrophobicity of its counterion in comparison to [C12mim][PCA] that has a hydroxyl group. Both hexagonal liquid-crystalline phase (H1) and cubic liquid-crystalline phase (V2) were constructed in the [C12mim][CA] aqueous solutions. In contrast, the [C12mim][PCA]/H2O system only exhibits a single hexagonal liquid-crystalline phase (H1) in a broad concentration region. These lyotropic liquid crystal (LLC) phases were comprehensively characterized by polarized optical microscopy (POM), small-angle X-ray scattering (SAXS), and rheometer. Investigation on the temperature-dependent self-assembly nanostructures demonstrates that the higher temperature leads to a looser arrangement. Under UV irradiation, trans-cis photoisomerization of the phenylalkene group results in inferior surface activity of the prepared SAILs in aqueous solution with higher cmc values. Moreover, UV light irradiation induces obvious change of the structural parameters without altering the LLC phases. This work is expected to enrich the investigations of phase behaviors formed in SAILs systems and receive particular attention due to their unique properties and potential applications in drug delivery, biochemistry, materials science, etc.
Collapse
Affiliation(s)
- Yanhui Bi
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, P.R. China
| | - Liuchen Zhao
- China Research Institute of Daily Chemical Industry , Taiyuan 030001, P.R. China
| | - Qiongzheng Hu
- Department of Chemistry, University of Houston , Houston, Texas 77204, United States
| | - Yan'an Gao
- China Ionic Liquid Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, P.R. China
| | - Li Yu
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, P.R. China
| |
Collapse
|
50
|
Xu W, Yin Q, Gao Y, Yu L. Solvent and Substituent Effects on the Aggregation Behavior of Surface-Active Ionic Liquids with Aromatic Counterions and the Dispersion of Carbon Nanotubes in their Hexagonal Liquid Crystalline Phase. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12644-12652. [PMID: 26549825 DOI: 10.1021/acs.langmuir.5b03586] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The aggregation behavior of surface-active ionic liquids (SAILs) 1-dodecyl-3-methylimidazolium m- and p-hydroxybenzoate (m-C12mimHB and p-C12mimHB) in water and ethylammonium nitrate (EAN) was investigated. Surface tension measurements indicate that the cmc values of SAILs in EAN are much higher than those in water, resulting from the weaker solvophobic effect of EAN, and the stronger stability of SAILs/EAN complexes proven by DFT calculations. Compared to 1-dodecyl-3-methylimidazolium salicylate (C12mimSal), the effect of substituent position leads to weaker interactions between aromatic counterions and headgroups. The hexagonal liquid crystal (H1) phase formed by C12mimHB in water or EAN at a higher concentration was determined by polarized optical microscopy (POM), small-angle X-ray scattering (SAXS), and rheology techniques. Structural parameters estimated from SAXS curves suggest that the higher SAILs concentration or temperature leads to a smaller lattice parameter (a0) and a denser arrangement of cylinders. For C12mimHB, the formation of the H1 phase in H2O is easier than that in EAN. Furthermore, compared to C12mimSal, C12mimHB exists over a broad region of the hexagonal liquid crystalline (H1) phase, which is due to the different position of the substituents on the aromatic ring of counterions. Therefore, the H1 phase of the lypotropic liquid crystals (LLCs) formed in the C12mimHB/H2O system exhibits excellent performance in uniformly dispersing multiwalled carbon nanotubes (MWCNTs). Increasing the concentration of MWCNTs results in a larger lattice parameter (a0) value, indicating the integration of MWCNTs within the cylinders of the H1 phase. The rheological measurement results demonstrate that MWCNTs/LLCs composites are highly viscoelastic, and the presence of MWCNTs obviously strengthens the apparent viscosity of the H1 phase.
Collapse
Affiliation(s)
- Wenwen Xu
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, PR China
- School of Chemistry and Chemical Engineering, Qufu Normal University , Qufu 273165, PR China
| | - Qiwen Yin
- China Research Institute of Daily Chemical Industry, Taiyuan 030001, PR China
| | - Yan'an Gao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, PR China
| | - Li Yu
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education , Jinan 250100, PR China
- School of Chemistry and Chemical Engineering, Qufu Normal University , Qufu 273165, PR China
| |
Collapse
|