| 八乙烯基倍半硅氧烷的合成及表征 |
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| 引用本文： | 孟二辉,田春蓉,黄奕刚,王建华. 八乙烯基倍半硅氧烷的合成及表征[J]. 精细化工, 2009, 26(5) |
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| 作者姓名： | 孟二辉 田春蓉 黄奕刚 王建华 |
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| 作者单位： | 西南科技大学,材料学院,四川,绵阳,621010;中国工程物理研究院,化工材料研究所,四川,绵阳,621900;西南科技大学,材料学院,四川,绵阳,621010;中国工程物理研究院,化工材料研究所,四川,绵阳,621900 |
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| 基金项目： | 中国工程物理研究院科学技术发展基金重点课题(2007A03003)~~ |
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| 摘 要： | 以乙烯基三乙氧基硅烷(VTES)为原料,盐酸为催化剂,经水解缩合反应合成了八乙烯基笼型倍半硅氧烷(OVS)。考察并讨论了反应温度和投料比对产物收率的影响。较佳的工艺条件为:V(VTES)∶V(HCl)∶V(CH3OH)=10∶12∶200,25℃反应18 d,收率可达31.5%。用FTIR、29SiNMR、MS和热分析对其结构和性质进行了表征。OVS失重5%对应的温度为270℃左右,说明热稳定性很高。
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| 关 键 词： | 八乙烯基倍半硅氧烷(OVS) 笼型结构 水解-缩合反应 |
Synthesis and Characterization of Octa(vinylsilsesquioxane) |
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| MENG Er-hui,TIAN Chun-rong,HUANG Yi-gang,WANG Jian-hua. Synthesis and Characterization of Octa(vinylsilsesquioxane)[J]. Fine Chemicals, 2009, 26(5) |
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| Authors: | MENG Er-hui TIAN Chun-rong HUANG Yi-gang WANG Jian-hua |
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| Affiliation: | 1.Department of Materials Science and Engineering;Southwest University of Science and Technology;Mianyang 621010;Sichuan;China;2.Institute of Chemical Materials;China Academy of Engineering Physics;Mianyang 621900;China |
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| Abstract: | In the presence of hydrochloric acid as the catalyst,Octa(vinylsilsquioxane)(OVS) was synthesized by hydrolysis condensation reaction using vinyltriethoxy silane(VTES) as raw material.The optimal reaction conditions were shown as follows:V(VTES)∶ V(HCl)∶ V(methanol)=10∶ 12∶ 200,reaction temperature 25 ℃,reaction 18 d.The yield of 31.5% was obtained.The structure and properties of OVS were characterized by FTIR,29SiNMR,MS and thermal analysis.The temperature corresponding to 5% weight loss was 270 ℃.This shows that OVS has a high stability to heat. |
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| Keywords: | octa(vinylsilsesquioxane)(OVS) cage structure hydrolysis-condensation reaction |
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