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Thermally induced reversible up/down migration of poly(ionic liquid)s (PILs) in aqueous two‐phase systems (ATPSs) was achieved for the first time in this study. Novel ATPSs were fabricated using azobenzene (Azo)‐ and benzyl (Bn)‐modified PILs, and their upper and lower phases could be easily tuned using the grafting degree (GD) of the Azo and Bn groups. Bn‐PIL with higher GDBn could go up into the...
Thermally induced reversible up/down migration of poly(ionic liquid)s (PILs) in aqueous two‐phase systems (ATPSs) was achieved for the first time in this study. Novel ATPSs were fabricated using azobenzene (Azo)‐ and benzyl (Bn)‐modified PILs, and their upper and lower phases could be easily tuned using the grafting degree (GD) of the Azo and Bn groups. Bn‐PIL with higher GDBn could go up into the...