STUDIES ON THE SYNTHESES OF POLYMETALLOXANES AND THEIR PROPERTIES AS A PRECURSOR FOR AMORPHOUS OXIDE .7. PREPARATION AND PROPERTIES OF POLYZIRCONOXANES AS A PRECURSOR FOR ZIRCONIA FIBERS BY THE HYDROLYSIS OF BIS(ETHYL ACETOACETATO)ZIRCONIUM DIALKOXIDE

被引：10

作者：

GUNJI, T ^{[1
]}

GOTO, H ^{[1
]}

KIMATA, Y ^{[1
]}

NAGAO, Y ^{[1
]}

MISONO, T ^{[1
]}

ABE, Y ^{[1
]}

机构：

[1] SCI UNIV TOKYO, FAC SCI & TECHNOL, DEPT IND CHEM, NODA, CHIBA 278, JAPAN

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1992年 / 30卷 / 11期

关键词：

ZIRCONIUM CHELATE; POLYZIRCONOXANE; STRUCTURE; PRECURSOR; ZIRCONIA; FIBER;

D O I：

10.1002/pola.1992.080301102

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Acid-catalyzed hydolysis of bis (ethyl acetoacetato) zirconium dialkoxide in methanol or THF was investigated. The hydrolysis of the chelates in the molar ratios of H2O/chelate = 1.0-2.0 and HCl/chelate = 0.1-0.2 provided concentrated solutions (ca. 83 wt %) of polyzirconoxanes (PZO) which showed excellent spinnability and stability to self-condensation. Continuous gel fibers were prepared by dry spinning the solutions. Polyzirconoxanes were isolated as powders when the concentrated solution was precipitated with hexane. Silylation allowed the investigation of the structure of PZO. It was confirmed to be the polymers of a low degree of polymerization with the ligand and hydroxy group as pendants.

引用

页码：2295 / 2301

页数：7

共 20 条

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