The Synthesis, Characterization And Properties Of Rare Earth Complexes Monomer And Co-Polymer Containing Rare Earth Complexes

Previous studies on rare earth complexes monomer and co-polymer containing rare earth complexes have been reviewed in these papers.Four new rare complexes monomer with the activity of polycondenstation were synthesized , novel co-polyureas and co-polyamide containing rare earth complexes were synthesized by the co-polycondenstation of rare earth complexes monomer and other monomer; the structure and characterization of complexes and co-polymers were studied, the flourscence characterization of rare earth complexes monomer and co-polymer containing rare earth complexes were emphasized.Thesis consists of the following parts:Part 1:A novel preparation method of anhydrous rare earth complexes is described,in which the anhydrous ethanol solution of RECl₃ was prepared in one-step reaction.Functional ligand with amino group was introduced into rare earth complexes, four new rare earth complexes monomer with the activity of polycondenstation were synthesizecd; the composition and structure of complexes was characterized by elemental analysis,IR,UV,TG-DTA,XPS and flourscence spectroscopy;the TG-DTA and flourscence characterization of complexes were discussed.The flourscence spectroscopy of complexes show that p-aminobenzoic acid can sensitize Eu³+ and Tb³+,but 3,5-diaminobenzoic aid can not.Part 2: Novel co-polyureas and co-polyamide containing rare earth complexes were synthesized by the co-polycondenstation of rare earth complexes monomer with high flourscence efficiency and other monomer; the composition and structure of co-polymer was characterized by elemental analysis,IR,UV,TG-DTA,XPS,X-ray diffraction and flourscence spectroscopy;theTG-DTA,crystallinity,flourscence characterization and flourscence stability of co-polymer were discussed.The results show that the flourscence spectroscopy of co-polymer was similar to that of the complex;the co-polymer has higher flourscence stability and the crystallinity of co-polymer decreases with increasing of the complex content.