Thermo-responsive extraction of cadmium(II) ion with TPEN-NIPA gel. Effect of the number of polymerizable double bond toward gel formation and the extracting behavior
摘要:
N,N,N',N'-(Tetrakis-2-pyridylmethyl)ethylenediamine (TPEN) derivatives bearing the different number (1-4) of a double bond moiety oil the pyridine ring are synthesized and subjected to copolymerization with N-isopropylacrylamide in the presence of AIBN The obtained poly(TPEN-NIPA) gels show thermoresponsive swelling/shrinking behaviors and are employed for the extraction of cadmium(II) ion from the aqueous solution to examine the relationship of the gel characteristics and the extraction per for Malice The polymer gels composed of the TPEN derivative bearing three or four double bonds exhibit temperature-dependent change of swelling and shrinking in water These gels extract Cd-II ion efficiently from the aqueous solution in the swelling state at 5 degrees C, while little extraction was observed at 45 degrees C with shrinking (C) 2010 Elsevier Ltd All rights reserved
Thermo-responsive extraction of cadmium(II) ion with TPEN-NIPA gel. Effect of the number of polymerizable double bond toward gel formation and the extracting behavior
摘要:
N,N,N',N'-(Tetrakis-2-pyridylmethyl)ethylenediamine (TPEN) derivatives bearing the different number (1-4) of a double bond moiety oil the pyridine ring are synthesized and subjected to copolymerization with N-isopropylacrylamide in the presence of AIBN The obtained poly(TPEN-NIPA) gels show thermoresponsive swelling/shrinking behaviors and are employed for the extraction of cadmium(II) ion from the aqueous solution to examine the relationship of the gel characteristics and the extraction per for Malice The polymer gels composed of the TPEN derivative bearing three or four double bonds exhibit temperature-dependent change of swelling and shrinking in water These gels extract Cd-II ion efficiently from the aqueous solution in the swelling state at 5 degrees C, while little extraction was observed at 45 degrees C with shrinking (C) 2010 Elsevier Ltd All rights reserved