【作者】 杨本宏； 徐洪耀； 光善仪； 李村；

【Author】 YANG Ben-hong~(2,3) XU Hong-yao~(1,2) GANG Shan-yi~1 LI Cun~2 (1.College of Material Science and Engineering,State Key Laboratory for Modification of Chemical Fibers and Polymeric Materials,Donghua University,Shanghai 201620,China;2.Faculty of Chemistry and Chemical Engineering,Anhui University,Hefei 230039,China;3.Department of Chemical and Material Engineering,Hefei University,Hefei 230022,China)

【机构】 安徽大学化学化工学院； 东华大学材料科学与工程学院纤维高分子材料改性国家重点实验室；

【摘要】 利用硅氢加成反应技术,以多面低聚倍半硅氧烷 T₈H₈和二（对烯丙氧基苯甲酸）丁二醇酯为单体合成了有机-无机杂化交联聚合物．用 FTIR 和²⁹Si NMR 等对材料进行了结构表征,结果表明,在聚合物中两种单体以化学键相连,无机与有机相均匀分散,T₈H₈分子中平均有6．3个 Si—H 键与 C=C 双键发生了加成反应, 得到了三维网络聚合物．TGA 分析结果表明,聚合物具有较高的热稳定性,热分解温度为376℃。 Ellipsometer 测试结果表明,聚合物薄膜具有较低的介电常数,k 值为2．4。薄膜表面经三甲基氯硅烷疏水处理后,k 值减小为2．2．更多还原

【Abstract】 A novel organic-inorganic hybrid network polymer was prepared via hydrosilylative addition reaction of octahydridosilsesquioxanes with diene.The FrlR and ²⁹Si NMR technologies were employed to characterize the structure of the resultant polymer.The results reveal that diene are chemically bound to each other and well-dispersed in the polymeric system.Averagely,6.3 of the eight Si—H bonds of each POSS have reacted with the C=C bonds of dienes, leading to 3-dimensional network polymers.TGA analysis shows that the hybrid polymer has high thermal stability with a TdOf 376℃.The dielectric constant of the polymeric film was determined to be 2.4,and reduced to 2.2 after treated with trimethylchlorosilane.更多还原