Surface-modified Zirconium Oxide Clusters and their Use as Components for Inorganic-Organic Hybrid Materials

摘要

Pre-formed transition metal oxide clusters with methacrylate ligands were polymerized in the presence of organic co-monomers to form inorganic-organic hybrid polymers.The number of polymerizable ligands and thus the crosslinking density of the hybrid polymers can be varied for a given cluster type by partially exchanging the methacrylate ligands for non-reactive ones.The properties of the hybrid polymers can also be varied by adjusting the conditions of the polymerization reaction,especially by a pre-polymerization procedure.It is shown that the thermal stability of polystyrene crosslinked by Zr_6O_4(OH)_4(OMc)_(12)is thus greatly improved.