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

✍ Scribed by Gunji Takahiro; Yamamoto Hiroshi; Hanaoka Takaaki; Bandoh Kitamura Kyoko; Abe Yoshimoto

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 152 KB
• Volume: 14
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/(sici)1099-0739(200002)14:2<119::aid-aoc964>3.0.co;2-y

✦ Synopsis

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 1 H NMR spectrum, IR spectrum, analytical data and expanded X-ray absorption fine-structure analysis indicated that EG-PZO consisted of Zr `(OH) 2 b Zr linkages as a main chain with pendant 2-hydroxyethoxy groups, chloro groups and water. The 3Y 2 O 3 -97ZrO 2 ceramic fibers were prepared by sintering the precursor fibers after the addition of Y(acac) 3 (acac = acetoacetate) to EG-PZO. Copyright