Structure–function study of tertiary amines as switchable polarity solvents

Wilson, Angela K.; Stewart, Frederick F.

doi:10.1039/c3ra47724j

Cited by 63 publications

(86 citation statements)

References 47 publications

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“…Recent research [17][18][19][20][60][61][62][63][64] has led to numerous ideas for draw solutes, including polyelectrolytes [18], hydrophilic magnetic nanoparticles [63], hydrogels [61,62], and switchable polarity solvents [19,65]. A major driver in these studies is finding a draw solute that can decrease the energy of draw solution regeneration.…”

Section: The Choice Of Draw Solute Cannot Decrease the Minimum Energymentioning

confidence: 98%

“…More significant opportunity lies in innovative high osmotic pressure draw solutes, such as switchable polarity solutes [19,65], or novel thermolytic draw solutes, such as trimethylamine (TMA)-carbon dioxide [60]. Switchable polarity solutes considered thus far for FO have all been tertiary amines that phase transition from water-miscible to water-immiscible depending on the presence of carbon dioxide [19,65].…”

Section: Some Opportunity Remains For Draw Solute Innovationmentioning

confidence: 99%

“…Switchable polarity solutes considered thus far for FO have all been tertiary amines that phase transition from water-miscible to water-immiscible depending on the presence of carbon dioxide [19,65]. Studies of switchable polarity solutes are still preliminary, and energy requirements (i.e.…”

Section: Some Opportunity Remains For Draw Solute Innovationmentioning

confidence: 99%

“…The black open hexagons indicate a draw solution with a hexavalent phosphazene salt, hexa(4-ehtylcarboxylatophenoxyl)phosphazene, as the draw solute [64]. All other symbols are representative of draw solutions using different tertiary amines and dissolved carbon dioxide as switchable polarity solvents for draw solutes [19,65]. The data for the solid curves were simulated using OLI Stream Analyzer (OLI Systems, Inc. Morris Plains, NJ) at a temperature of 25°C.…”

Section: Simple Dissolved Salts Remain the Optimal Draw Solutesmentioning

confidence: 99%

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Section: The Choice Of Draw Solute Cannot Decrease the Minimum Energymentioning

confidence: 98%

Section: Some Opportunity Remains For Draw Solute Innovationmentioning

confidence: 99%

Section: Some Opportunity Remains For Draw Solute Innovationmentioning

confidence: 99%

Section: Simple Dissolved Salts Remain the Optimal Draw Solutesmentioning

confidence: 99%

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Forward osmosis: Where are we now?

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“…An aqueous solution of triethylammonium bicarbonate (TEAB) (1, 2) is widely used as a volatile buffer mobile phase and ion-pairing agent (3,4) for chromatographic purification of nucleic acids (5-13) and other biomolecules (14,15). TEAB can be isolated as a crystalline trihydrate (mp.…”

Section: Introductionmentioning

confidence: 99%

Improved preparation of 2 M triethylammonium bicarbonate

Carter

Rohloff

2015

Green Chemistry Letters and Reviews

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Introduction, Types, Properties, and Applications of Switchable Solvents: A Review

Kanawade,

Kesarwani,

Bajpai Tripathy

et al. 2024

ChemistrySelect

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Switchable solvents (SS) are a class of liquids with the unique ability to significantly alter their physical properties in response to external stimuli such as changes in temperature or the introduction or removal of CO2 gas. This reversible behaviour allows them to return to their original state with minimal changes, making them highly advantageous for various applications. A notable example of a switchable solvent is waste carbon dioxide gas, which is non‐toxic, non‐flammable, and cost‐effective. The versatility of switchable solvents extends to their polarity and physical states, which can be modified through molecular adjustments, opening new pathways for research and industrial applications. This review provides a comprehensive overview of switchable solvents, including their classification, history, properties, and applications, with a particular focus on their role in green chemistry. The types of switchable solvents discussed include Switchable‐Polarity Solvents (SPS), Switchable‐Hydrophilicity Solvents (SHS), and Switchable Water. Each type is examined in terms of synthesis, chemical properties, and development. The desirable properties of switchable solvents, such as their efficiency and recyclability, make them suitable alternatives to traditional solvents in various fields. Their applications range from water treatment and oil extraction to cleaning solid particles and recovering residual motor oil. Additionally, switchable solvents have proven effective as reaction media and in recovering polystyrene from foam. This paper also highlights the environmental benefits of switchable solvents, emphasizing their role in reducing the ecological impact of chemical processes. The potential for future developments in this field is significant, with ongoing research aimed at enhancing their performance and expanding their applications. By providing a detailed analysis of switchable solvents, this review aims to support researchers and industry professionals in developing more sustainable and efficient chemical processes.

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Structure–function study of tertiary amines as switchable polarity solvents

Cited by 63 publications

References 47 publications

Forward osmosis: Where are we now?

Forward osmosis: Where are we now?

Improved preparation of 2 M triethylammonium bicarbonate

Introduction, Types, Properties, and Applications of Switchable Solvents: A Review

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