Polyphosphazene-metal oxide hybrids by nonhydrolytic sol-gel processes

被引：10

作者：

Crouzet, L ^{[1
]}

Leclercq, D ^{[1
]}

机构：

[1] Univ Montpellier 2, UMR Chim Mol & Org Solide 5637, F-34095 Montpellier 5, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2000年 / 10卷 / 05期

关键词：

D O I：

10.1039/a909362a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three ways have been studied for the preparation of phosphazene-metal oxide hybrids in which the phosphazene units were covalently linked to the metal through P-O-M bonds,condensation between hexachlorocyclotriphosphazene and metal alk oxides (Si, Ti), between hexaalkoxycyclotriphosphazene and metal chloride, and between the two chlorides in the presence of ether. Nonhydrolytic condensation between tetrachlorosilane or titanium chloride and hexaalkoxycyclotriphosphazene is the best way for the preparation of covalently linked cyclotriphosphazene-metal oxide hybrids. The composition of the hybrids can be controlled by using a mixture of alkoxyphosphazene, metal chloride and metal alkoxide when the metal is titanium or aluminium. This mode of condensation has been applied to polyphosphazene.

引用

页码：1195 / 1201

页数：7

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