Liquid, methoxylated polysiloxane/silica hybrid resins by a non-hydrolytic route

被引：1

作者：

Bourget, L ^{[1
]}

Mutin, PH ^{[1
]}

Vioux, A ^{[1
]}

机构：

[1] Univ Montpellier 2, UMR5637, F-34095 Montpellier 5, France

来源：

ORGANIC/INORGANIC HYBRID MATERIALS | 1998年 / 519卷

关键词：

D O I：

10.1557/PROC-519-351

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation of liquid, methoxylated, polysiloxane hybrid resins containing Me2Si(O-)(2) (D) or MeHSi(O-)(2) (D-H) units cross-linked by Si(O-)(4) (Q) units was attempted using the non-hydrolytic condensation reaction between Si-CI and Si-OMe groups, catalyzed by ZrCl4. The structure of the resins was investigated by Si-29 NMR, which showed that redistribution reactions played a prominent role. Thus, Si-OMe/Si-OSi redistributions lead to a highly homogeneous, random structure for the D/Q resin. On the other hand, this route does not apply to the synthesis of D-H/Q resins, due to the redistribution of SI-H bonds which leads to the escape of MeSiH3 and to the formation of T and T-H units.

引用

页码：351 / 356

页数：6