A new type of resin containing calixarene carboxylate and chitosan was synthesized for the first time and adsorption behavior of them for K+,Na+,Hg2+,Ag+,Ni2+,Cd2+and Pb2+was investigated.It was found calixarene-chito...A new type of resin containing calixarene carboxylate and chitosan was synthesized for the first time and adsorption behavior of them for K+,Na+,Hg2+,Ag+,Ni2+,Cd2+and Pb2+was investigated.It was found calixarene-chitosan show high adsorption capablilities and some adsorption selectivity comparing with chitosan and other calixarene polymers.展开更多
A series of calix\ 1,4 crown based polymers with stable conformations were synthesized by reacting calix\ 1,4 crown tetraester with poly(ethyleneimine), and their adsorption capabilities were studied . Their structure...A series of calix\ 1,4 crown based polymers with stable conformations were synthesized by reacting calix\ 1,4 crown tetraester with poly(ethyleneimine), and their adsorption capabilities were studied . Their structures and shapes were characterized by elemental analyses, IR and SEM techniques. Their adsorption selectivities were found to be higher than that of calix\arene polymer without stable conformation. All of them showed good selective adsorption capability towards Cu 2+ among the tested cations. The adsorption capacity of compound 2a towards Cu 2+ at concentration of 0 2 mmol/L were 64 5×10 -5 mol/mg.展开更多
文摘A new type of resin containing calixarene carboxylate and chitosan was synthesized for the first time and adsorption behavior of them for K+,Na+,Hg2+,Ag+,Ni2+,Cd2+and Pb2+was investigated.It was found calixarene-chitosan show high adsorption capablilities and some adsorption selectivity comparing with chitosan and other calixarene polymers.
文摘A series of calix\ 1,4 crown based polymers with stable conformations were synthesized by reacting calix\ 1,4 crown tetraester with poly(ethyleneimine), and their adsorption capabilities were studied . Their structures and shapes were characterized by elemental analyses, IR and SEM techniques. Their adsorption selectivities were found to be higher than that of calix\arene polymer without stable conformation. All of them showed good selective adsorption capability towards Cu 2+ among the tested cations. The adsorption capacity of compound 2a towards Cu 2+ at concentration of 0 2 mmol/L were 64 5×10 -5 mol/mg.
