文献类型：期刊文献

中文题名：多乙烯基硅氧烷笼形倍半硅氧烷的合成及性能

英文题名：Synthesis and Properties of Polyvinylsiloxane-Silsesquioxane

作者：杭孝东[1];周燕[1];沈学宁[1];黄发荣[1];杜磊[1]

机构：[1]华东理工大学国防材料工程研究所,上海200237

年份：2008

卷号：38

期号：3

起止页码：54

中文期刊名：宇航材料工艺

外文期刊名：Aerospace Materials & Technology

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：笼形倍半硅氧烷;二乙烯基硅氧烷;加成反应;耐热树脂

外文关键词：Octahydridrosilsesquioxane; Divinylsiloxane; Addition reaction; Heat-Resistant resin;

摘要：采用三氯硅烷水解缩合法合成了含八氢基的笼形倍半硅氧烷(T8H8),并用T8H8合成了多乙烯基硅氧烷笼形倍半硅氧烷(DVS-POSS)树脂,采用FT-IR、1H-NMR、29Si-NMR等手段对其结构进行了表征;探讨了T8H8与二乙烯基硅氧烷(DVS)的加成反应。研究表明,固化的DVS-POSS具有良好的耐热性能,Td5超过530℃;DVS-POSS树脂复合材料具有优良的介电性能,在9.75MHz下,ε为3.02,tgδ为2.4×10-3。
The resin of polyvinylsiloxane-silsesquioxane is a new organic /inorganic hybrid material with high performance. Octahydridrosilsesquioxane(T8H8) was synthesized by hydrolytic condensation of trichlorosilane, and was used to produce a polyvinylsiloxane-silsesquioxane(DVS-POSS)resin. T8H8 and DVS-POSS resin were characterized by FT-IR, 1H-NMR and 29Si-NMR. The addition reaction of T8H8 and Divinylsiloxane(DVS)was also studied. TGA showed that cured DVS-POSS have excellent thermal stability and the T5d is mor...