Preparation of polyzirconoxane from zirconium oxychloride octahydrate and ethylene glycol as a precursor for zirconia ceramics

An Erratum has been published for this article in Applied Organometallic Chemistry 2001; 15(4):317. The preparation of polyzirconoxanes (EG-PZO) was investigated by a one-pot reaction of zirconium oxychloride octahydrate with ethylene glycol. Triethylamine was added dropwise into a mixture of zirconium oxychloride octahydrate, ethylene glycol and methanol to give EG-PZO with a good spinnability and stability to self-condensation. The 1H NMR spectrum, IR spectrum, analytical data and expanded X-ray absorption fine-structure analysis indicated that EG-PZO consisted of Zr < (OH)2 > Zr linkages as a main chain with pendant 2-hydroxyethoxy groups, chloro groups and water. The 3Y2O3–97ZrO2 ceramic fibers were prepared by sintering the precursor fibers after the addition of <?tw=97%>Y(acac)3 (acac = acetoacetate) to EG-PZO. Copy-<?tw>­right © 2000 John Wiley & Sons, Ltd.