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Sadhu B, Clark AE. Modulating Aggregation in Microemulsions: The Dispersion by Competitive Intermolecular Interaction Model. J Phys Chem Lett 2022; 13:10981-10987. [PMID: 36404619 DOI: 10.1021/acs.jpclett.2c02658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A phenomenological model has been developed for the mechanism of action of phase modifiers as additives that control aggregation phenomena within water-in-oil emulsions. The "Dispersion by Competitive Intermolecular Interaction" model (DCI) explicitly considers the strength and prevalence of different intermolecular interactions that influence the molecular association of amphiphiles, the resulting distribution of aggregate size, and interaggregate interactions that influence phase phenomena. The existing "cosolvent" and "cosurfactant" association models, which describe the distribution of these amphiphiles within the solution, are re-examined in the context of intermolecular interactions. The different contributions of intermolecular interactions to the potential energy landscape of molecular association create distinct regimes within the DCI model that explain prior observations of cosolvent and cosurfactant behavior. The specific system under consideration, the N,N,N',N'-tetraoctyl diglycolamide amphiphile extractant with tributyl phosphate or dihexyl octanamide phase modifier additives, represents a new regime-labeled the polar disruption regime-where strong hydrogen bonding of the phase modifier with the polar-solutes disrupts the internal hydrogen bonding network of the polar micellar core, thereby decreasing aggregate size and narrowing the polydispersity in solution.
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Affiliation(s)
- Biswajit Sadhu
- Health Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra400085, India
| | - Aurora E Clark
- Department of Chemistry, Washington State University, Pullman, Washington99164, United States
- Department of Chemistry, University of Utah, Salt Lake City, Utah84112, United States
- Pacific Northwest National Laboratory, Richland, Washington99354, United States
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2
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Narayanan P, Swami KR, Prathibha T, Venkatesan KA. Insights into the Third Phase Formation Behaviour of
N,N
‐Didodecyl‐
N’,N’
‐Dioctyl Diglycolamide in
n
‐Dodecane Investigated by Dynamic Light Scattering and FTIR Spectroscopy. ChemistrySelect 2022. [DOI: 10.1002/slct.202202610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Parvathy Narayanan
- Reprocessing Research and Development Division Reprocessing Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
- Homi Bhabha National Institute, Anushakthi Nagar Mumbai 400094 India
| | - Kantamani Rama Swami
- Reprocessing Research and Development Division Reprocessing Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
| | - Thonakot Prathibha
- Fuel Chemistry Division Material Chemistry and Metal Fuel Cycle Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
| | - Konda Athmaram Venkatesan
- Reprocessing Research and Development Division Reprocessing Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
- Homi Bhabha National Institute, Anushakthi Nagar Mumbai 400094 India
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3
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Dhawa A, Rout A, Jawahar N, Venkatesan K. A systematic approach for achieving the maximum loading of Eu(III) in TODGA/n-dodecane phase with the aid of TBP phase modifier. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Prathibha T, Rama Swami K, Suneesh A, Robert Selvan B, Sriram S, Venkatesan K. Extraction and aggregation behaviour of Zr(IV) in diglycolamide solvents during the treatment of high-level liquid waste solution arising from metallic fuel reprocessing. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Rao CV, Rout A, Venkatesan KA. Aggregation behavior of ionic liquid in molecular liquid medium: a dynamic light scattering study. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1734621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ch. Venkateswara Rao
- Training School Complex, Homi Bhabha National Institute, Mumbai, India
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - Alok Rout
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
| | - K. A. Venkatesan
- Training School Complex, Homi Bhabha National Institute, Mumbai, India
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India
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Verma PK, Mohapatra PK, Yadav AK, Jha SN, Bhattacharyya D, Leoncini A, Huskens J, Verboom W. Role of diluent in the unusual extraction of Am 3+ and Eu 3+ ions with benzene-centered tripodal diglycolamides: local structure studies using luminescence spectroscopy and XAS. NEW J CHEM 2021. [DOI: 10.1039/d1nj02594e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two benzene-centered tripodal DGA ligands (LI and LII) were used for the extraction of Am3+/Eu3+ from HNO3 medium into n-dodecane modified with various amounts of isodecanol. Luminescence spectroscopy and EXAFS studies were carried out for structural information.
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Affiliation(s)
- Parveen K. Verma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | | | - Ashok K. Yadav
- Applied Molecular and Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Shambhu N. Jha
- Applied Molecular and Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Dibyendu Bhattacharyya
- Applied Molecular and Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Andrea Leoncini
- Laboratory of Molecular Nanofabrication, MESA + Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jurriaan Huskens
- Laboratory of Molecular Nanofabrication, MESA + Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Willem Verboom
- Laboratory of Molecular Nanofabrication, MESA + Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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7
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Investigations on the unusual aggregation behaviour of tetra(2-ethyhexyl)diglycolamide in n-dodecane medium upon gamma irradiation. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Parvathy N, Swami KR, Prathibha T, Venkatesan K. Antagonism in the aggregation behaviour of N,N,N′,N′-tetraoctyldiglycolamide in n-dodecane upon adding N,N-dioctylhydroxyacetamide during trivalent metal extraction. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113940] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Investigations on the physicochemical properties of a combined extractant system under unirradiated and irradiated conditions. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113498] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Narayanan P, Swami KR, Prathibha T, Venkatesan K. FTIR spectroscopic investigations on the aggregation behaviour of N,N,N′,N′-tetraoctyldiglycolamide and N,N-dioctylhydroxyacetamide in n-dodecane during the extraction of Nd(III) from nitric acid medium. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Rama Swami K, Venkatesan KA, Selvan BR. Studies on the aggregation behaviour of radiolytically degraded tetra(2-ethyhexyl)diglycolamide in n-dodecane medium during the extraction of trivalent metal ions. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07200-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Binder C, Lageder B, Bradshaw-Hajek BH, Fischmann AJ, Priest C. Microvolume Screening of Extraction and Phase Behavior in a Liquid-Liquid Microsystem. Anal Chem 2020; 92:7831-7835. [PMID: 32352760 DOI: 10.1021/acs.analchem.0c01050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spontaneous formation of a third immiscible phase during liquid-liquid solvent extraction presents an enormous technical challenge for industry. Insight from current empirical investigations is greatly limited by the lack of methodologies that simultaneously report the progress of the extraction, third-phase onset time, and chemical and physical nature. The microfluidic strategy presented here answers this challenge by supporting an optically transparent submicroliter organic-phase film in a micropillar array surrounded by the aqueous phase. To demonstrate, we used 1 M Cyanex 572 in Shellsol D70 (organic phase) to extract Yb3+ and Dy3+ from a pH 2 aqueous phase. Real-time optical tracking confirmed that the visual onset of third-phase formation is consistent with the cessation of extraction (at the loading limit). Spectroscopic analysis of the solid-like third phase was carried out successfully. The new analytical approach offers a step change in speed and efficiency for reagent development, process control, and fundamental studies of complex phase behavior in reactive multiphase systems.
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Affiliation(s)
- Claudia Binder
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Benjamin Lageder
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | | | - Adam J Fischmann
- Centre for Advanced Materials and Industrial Chemistry, School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - Craig Priest
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
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Jose J, Prathibha T, Karthikeyan N, Venkatesan K, Selvan BR, Seshadri H, Venkatachalapathy B, Ravichandran C. Evaluation of selected solvent systems for the single-cycle separation of Am(III) from Eu(III) using aqueous soluble sulphonated bis-triazinylpyridine. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Unraveling the role of phase modifiers in the extraction of Nd(III) from nitric acid medium in tetra-bis(2-ethylhexyl)diglycolamide in n-dodecane containing long chain aliphatic alcohols. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111741] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Rama Swami K, Venkatesan KA. Effect of pKa of organophosphorus acidic extractants on the aggregation behavior of diglycolamide in n-dodecane. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06798-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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swami KR, Prathibha T, Venkatesan K. Aggregation and organic phase splitting behavior of a synergic extractant system probed by dynamic light scattering spectroscopy. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111320] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Rao CV, Rout A, Venkatesan K. Europium(III) complexation behaviour in an alkyl ammonium ionic liquid medium containing neutral extractants. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Venkateswara Rao C, Rout A, Venkatesan KA. Probing the absence of third phase formation during the extraction of trivalent metal ions in an ionic liquid medium. NEW J CHEM 2019. [DOI: 10.1039/c8nj06267f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In contrast to molecular diluents, diglycolamide (T2EHDGA) and carbamoylmethyl-phosphine oxide (CMPO) extractants diluted in an ionic liquid diluent minimize aggregation upon nitric acid extraction and prevent third phase formation during the course of solvent extraction.
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Affiliation(s)
- Ch. Venkateswara Rao
- Homi Bhabha National Institute
- Training School Complex
- Mumbai
- India
- Fuel Chemistry Division
| | - Alok Rout
- Fuel Chemistry Division
- Indira Gandhi Centre for Atomic Research
- Kalpakkam
- India
| | - K. A. Venkatesan
- Fuel Chemistry Division
- Indira Gandhi Centre for Atomic Research
- Kalpakkam
- India
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