| 笼形八聚(氯甲基二甲基硅氧基)倍半硅氧烷的合成及表征 |
| |
| 引用本文： | 李建利,苏新艳,徐洪耀.笼形八聚(氯甲基二甲基硅氧基)倍半硅氧烷的合成及表征[J].精细化工,2009,26(4). |
| |
| 作者姓名： | 李建利 苏新艳 徐洪耀 |
| |
| 作者单位： | 东华大学,材料与工程学院,纤维与高分子改性国家重点实验室,上海,201620 |
| |
| 基金项目： | 国家自然科学基金(90606011);;教育部高等学校博士学科点专项科研基金(20070255012);;上海市重点学科(B603)项目~~ |
| |
| 摘 要： | 以等量的四乙氧基硅烷Si(OC2H5)4与四甲基氢氧化铵Me4NOH在水溶液中水解缩合,选择性地形成笼形结构的八聚(四甲基铵)硅酸盐(Me4NO)SiO1.5]8,将其再与氯甲基二甲基氯硅烷进行硅烷化反应,得到氯甲基二甲基氧基取代的八聚笼形倍半硅氧烷(CH2ClMe2SiO)SiO1.5]8,分别用FTIR、1H NMR、和29SiNMR对目标产物进行了表征。考察了各反应条件对其产率的影响,得到最优合成条件为:温度25℃、反应时间17h、溶剂DMF、n(氯甲基二甲基氯硅烷)∶n八聚(四甲基铵)硅酸盐=60∶1,在该条件下产率可达72.3%。
|
| 关 键 词： | 倍半硅氧烷 四乙氧基硅烷 氯甲基二甲基氯硅烷 功能材料 |
Synthesis and Characterization of Cage-like Octa(chloricmethyldimethylsiloxy) Silsesquioxane |
| |
| LI Jian-li,SU Xin-yan,XU Hong-yao.Synthesis and Characterization of Cage-like Octa(chloricmethyldimethylsiloxy) Silsesquioxane[J].Fine Chemicals,2009,26(4). |
| |
| Authors: | LI Jian-li SU Xin-yan XU Hong-yao |
| |
| Affiliation: | State Key Lab for Modification of Chemical Fibers and Polymer Materials;College of Material Science and Engineering;Donghua University;Shanghai 201620;China |
| |
| Abstract: | A cage-like tetramethylammonium silicate octamer was selectively prepared by the hydrolysis and polycondensation of tetraethoxysilane with the aqueous tetramethylammonium hydroxide in equal molar ratio.Then,the tetramethylammonium silicate octamer was silanized by chloricmethyldimethylsilane to give the cage-like octa (chloricmethyldimethylsiloxy) silsesquioxane.The resulting compound was characterized by FTIR,1HNMR and 29SiNMR.In addition,the influences of reaction conditions on the yield of product were d... |
| |
| Keywords: | octasilsesquioxane tetraethoxysilane chloricmethyldimethylsilane functional materials |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
