Polyether chelating resins and some chelating reins containing heterocyclic compounds with N heteroatom such as pyrrole and imidazole etc, were widely investigated owing to their well adsorption performance for transition metal ions and especially for some noble or heavy metal ions. The adsorption performance of chelating resins was mainly affected by the sort, content and cooperation effect of functional groups and other factors, which have been studied in the vast majority of papers about chelating resins. Additionally, Min-Li Xie et al prepared a series of liquid crystalline poly(ethylenemine) chelating resins and preliminarily studied their adsorption performance under the different thermal state (liquid crystalline state and isotropic state), considering that the thermal state of resins may also have some influence on adsorption performance. It showed that the investigation on thermal properties of chelating resins was very necessary for further exploration on factors influencing adsorption performance; however, so far, few correlative researches have been reported. Therefore, a series of polyether chelating resins with polyepichlorohydrin (HPECH) main chain were synthesized, which have pendent biphenyl mesogenic groups with (or without, as a comparison) terminal pyrrolyl ligands. Their thermal properties were investigated by the Differential Scanning Calorimetry (DSC) and Polarizing Microscopy (POM), and the adsorption properties under the different thermal state were also studied preliminarily.
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