2019
DOI: 10.1039/c9ra04020j
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Thermo-responsive draw solute for forward osmosis process; poly(ionic liquid) having lower critical solution temperature characteristics

Abstract: A poly(ionic liquid) having lower critical solution temperature characteristics was synthesized to investigate its suitability as a draw solute for forward osmosis.

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Cited by 20 publications
(8 citation statements)
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“…Styrene-based polycations with chiral cationic imidazolium units ( P12 ) also undergo the LCST-type phase transition in CHCl 3 . 99 The cloud point temperature increased with changing the substituent in the imidazolium ring from butyl to phenyl. In contrast, when the substituent in the imidazole ring was changed from ( l )-valine to ( l )-phenylalanine, the transition temperature decreased from 48.5 to 12.5 °C.…”
Section: Thermoresponsive Behavior Of Polycationsmentioning
confidence: 98%
“…Styrene-based polycations with chiral cationic imidazolium units ( P12 ) also undergo the LCST-type phase transition in CHCl 3 . 99 The cloud point temperature increased with changing the substituent in the imidazolium ring from butyl to phenyl. In contrast, when the substituent in the imidazole ring was changed from ( l )-valine to ( l )-phenylalanine, the transition temperature decreased from 48.5 to 12.5 °C.…”
Section: Thermoresponsive Behavior Of Polycationsmentioning
confidence: 98%
“…[173,174] Ju et al synthesized poly(4-vinylbenzyltributylammonium hexanesulfonate) (P[VBTBA][HS]), a poly(ionic liquid) exhibiting LCST property, through free radical polymerization. [175] When 20 wt% of aqueous P[VBTBA][HS] was used as draw solution, the FO operation in active layer facing the feed solution (AL-FS) mode achieved water flux and reverse solute flux of %5.85 L m À2 h À1 and 1.13 g m À2 h À1 , respectively. With the thermoresponsive property, the recovery of the poly(ionic liquid) was carried out by altering the temperature-controlled solubility.…”
Section: Forward Osmosismentioning
confidence: 99%
“…In the case of cation–anion combinations of ILs that show thermo-responsive phase behavior, typically, the anions include both organic and inorganic species, but cations include usually organic species such as imidazolium, pyridinium, phosphonium, and ammonium [ 43 , 44 ]. Several thermo-responsive ILs were introduced as the draw solute at 20–60 °C, such as tetrabutylammonium 2,4,6-trimethylbenzenesulfonate ([N 4444 ]2,4,6-MeBnSO 3 ) [ 45 ], tetrabutylphosphonium trifluoroacetate ([P 4444 ]CF 3 COO) [ 46 ], 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF 4 ]) [ 47 ], tetraethylammonium bromide ([N 2222 ]Br) [ 48 ], betaine bis(trifluoromethylsulfonyl)imide ([Hbet][Tf 2 N]) [ 49 ], and poly(4-vinylbenzyltributylammonium hexanesulfonate) (P[VBTBA][HS]) [ 50 ]. These examples refer to the situation where the thermo-responsive ILs are available for draw solute in the FO system.…”
Section: Introductionmentioning
confidence: 99%