STUDY ON THE CHANGE OF STRUCTURE IN THE SOL-GEL PROCESS OF COPPER ETHOXIDE
乙醇铜溶胶凝胶过程的结构变化

The structural changes of Cu complex species in the sol-gel process of modified Cu ethoxide with acetic acid have been studied by determination of ESR. IR and visible spectra. It is demonstrated that dissolution of Cu ethoxide in methoxyethanol is ascribed to formation of Cu binuclear species, the hydrolysis process is involved in structural change of the Cu binuclear species, and the formation of gel is due to polycondensation of hydrolyzed species through olation. Hence.the resulting gels are rather stable in ambient atmosphere.