Synthesis and thermal properties of telechelic α,ω-bis anhydride oligosiloxanes

被引：4

作者：

Andre, S ^{[1
]}

Guida-Pietrasanta, F ^{[1
]}

Rousseau, A ^{[1
]}

Boutevin, B ^{[1
]}

Caporiccio, G ^{[1
]}

机构：

[1] Ecole Natl Super Chim Montpellier, CNRS, UMR 5076, Lab Chim Macromol, F-34296 Montpellier 5, France

来源：

POLYMER | 2001年 / 42卷 / 13期

关键词：

telechelic oligosiloxane; exo-5-(dimethylchlorosilyl) bicyclo-[2.2.1]heptane-endo-2,3-dicarboxylic anhydride hydrosilylation;

D O I：

10.1016/S0032-3861(01)00040-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Telechelic oligosiloxanes are obtained either via ring opening polymerization of polycyclodialkylsiloxane or via hydrosilylation with a alpha,omega -bis hydrosilane oligosiloxane or via condensation between a alpha,omega -bis hydroxy oligosiloxane and an appropriated chlorosilane. This study investigates the synthesis of a alpha,omega -bis anhydride oligosiloxane via hydrosilylation of bicyclo[2.2.1]hept-5-ene-endo-2,3-dicarboxylic anhydride with alpha,omega -bis hydrosilane oligosiloxane in the presence of a Platinum catalyst. Using a Pt catalyst induced a long reaction time and especially an important increase of average molecular weight. Another method of synthesis in two steps was then set up: condensation of exo,5-(dimethylchlorosilyl)bicyclo-[2.2.1]heptane-endo-2,3-dicarboxylic anhydride with alpha,omega -bis hydroxy oligosiloxane which leads to the expected oligosiloxane, rapidly and quantitatively. Thermal properties have also been investigated alpha,omega -bis anhydridr oligosiloxane may take part in the synthesis of block copolymers. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：5505 / 5513

页数：9

共 21 条

[1] Synthesis of hybrid fluorinated silicones .1. Influence of the spacer between the silicon atom and the fluorinated chain in the preparation and the thermal properties of hybrid homopolymers [J].