| 引用本文: | 邢欣,刘琳,李效东,等.侧链含锑聚硅烷的合成与性能研究.[J].国防科技大学学报,2008,30(3):15-20.[点击复制] |
| XING Xin,LIU Lin,LI Xiaodong,et al.Synthesis and Characterization of Polysilanes with Antimony Side Groups[J].Journal of National University of Defense Technology,2008,30(3):15-20[点击复制] |
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| 侧链含锑聚硅烷的合成与性能研究 |
| 邢欣, 刘琳, 李效东, 王海哲 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 侧链含锑聚硅烷的合成可通过聚甲基硅烷的高分子反应在室温条件下实现，聚合物产率为75.2%，数均分子量为1600。其分子结构与组成可由元素分析、FT-IR、1H-NMR、29Si CP/MAS NMR、GPC和UV来确认。PSA可溶于一般常见的有机溶剂，紫外吸收的最大波长为330nm，其热分解特性表明，陶瓷收率为80%，可用作SiC陶瓷先驱体；其本体电导率为10-8～10-7S/cm，将其与碘掺杂，电导率可以达到10-5S/cm以上。 |
| 关键词: 聚硅烷 聚甲基硅烷 高分子反应 含锑侧基 半导体性能 |
| DOI： |
| 投稿日期：2007-05-14 |
| 基金项目:国家部委资助项目(51310060101) |
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| Synthesis and Characterization of Polysilanes with Antimony Side Groups |
| XING Xin, LIU Lin, LI Xiaodong, WANG Haizhe |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Polysilanes with antimony side groups (PSA) can be synthesized from polymer reaction of polymethylsilane at room temperature. In so doing, the yield of polymer is 75.2% and the average molecular weights of the polymer are around 1600. Its chemical composition and structure can be characterized by elemental analysis, FT-IR, 1H-NMR,29Si CP/MAS NMR, GPC, and UV. It is soluble in the common organic solvent; the UV absorption maximum wavelength is 330nm. The property of pyrolysis shows that its ceramic yield is 80% and it is a potential preceramic polymer. This polymer shows good semiconductive properties, whose intrinsic conductivities are within the range of 10-8～10-7S/cm, and can be increased above 10-5S/cm after being doped with iodine. |
| Keywords: polysilanes polymethylsilane polymer reaction antimony side groups semiconductive properties |
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