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This work reports a SO_2 derivative-detecting and colorful hyperbranched polymeric ionic liquid(HBPIL) vesicle through aqueous self-assembly. By a simple anion-exchange, we achieved the combination of functional small-molecule probe of acid fuchsin with HBPILs. The obtained HBPIL vesicle displayed ultraviolet absorption at 544 nm, and was used as a novel SO_2 derivative sensor with high sensitivity and visualization. Due to the functional ion pairs enriching on the surface, the SO32-detection limit of the HBPILs vesicles was as low as 0.138 μmol/L, which was about 1.5 orders of magnitude lower than that of acid fuchsin.
This work reports a SO2 derivative-detecting and colorful hyperbranched polymeric ionic liquid (HBPIL) vesicle through aqueous self-assembly. By a simple anion-exchange, we achieved the combination of functional small-molecule probe of acid fuchsin with HBPILs. The obtained HBPIL vesicle displayed ultraviolet absorption at 544 nm, and was used as a novel SO2 derivative sensor with high sensitivity and visualization. Due to the functional ion pairs enriching on the surface, the SO32-detection limit of the HBPILs vesicles was as low as 0.138 μmol / L, which was about 1.5 orders of magnitude lower than that of acid fuchsin.