| 引用本文: | 胡海峰,陈朝辉,冯春祥,等.新型硅氮烷先驱体的合成和表征.[J].国防科技大学学报,1997,19(6):113-117.[点击复制] |
| Hu Haifeng,Chen Zhaohui,Feng Chunxiang,et al.Synthesis and Characterization of Novel Polysilazane as Precursor[J].Journal of National University of Defense Technology,1997,19(6):113-117[点击复制] |
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| 新型硅氮烷先驱体的合成和表征 |
| 胡海峰, 陈朝辉, 冯春祥, 张长瑞, 宋永才, 范真祥 |
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(国防科技大学 材料科学与应用化学系 湖南 长沙 410073)
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| 摘要: |
| 采用 MeSiHC12 和 Me(CH2=CH)SiCl2 共氨解制备出流动性好的含Si-H和Si-CH=CH2的低分子硅氮烷，结果表明 H2PtCl6(脱水)和 DCP 是合适的硅氢化交联的催化剂和双键交联的引发剂。交联产物在程序控温的管式炉中裂解，得到高的陶瓷产率(>74% wt)。 |
| 关键词: 硅氮烷，活性基团，交联，裂解 |
| DOI： |
| 投稿日期：1997-04-12 |
| 基金项目: |
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| Synthesis and Characterization of Novel Polysilazane as Precursor |
| Hu Haifeng, Chen Zhaohui, Feng Chunxiang, Zhang Changrui, Song Yongcai, Fan Zhenxiang |
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(Department of Material Engineering and Applied Chemistry，NUDT，Changsha，410073)
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| Abstract: |
| A silazane oligomer with low viscousity and latent active groups（Si-H and Si（CH = CH2)) was prepared by coammonolysis of MeSiHCl2 and Me（CH2=CH) SiCl2. H2PtCl6（dehydrated) and dicumyl peroxide (DCP) were found to be effective to catalyse or initialise crosslinking of the silazane oligomer respectively. The crosslinked polymer was pyrolysed in a tube furnace to obtain high yield(over 74%wt)ceramic at 1273K. |
| Keywords: silazane,active group,crosslinking,pyrolysis |
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