| 硅胶表面季铵功能化接枝过程的29SiCP/MSNMR和XPS法研究 |
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| 引用本文： | 李辉波,叶国安,林灿生,苏哲,王孝荣,宋凤丽,赵兴红,刘占元. 硅胶表面季铵功能化接枝过程的29SiCP/MSNMR和XPS法研究[J]. 原子能科学技术, 2010, 44(Z1): 85-90. DOI: 10.7538/yzk.2010.44.suppl.0085 |
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| 作者姓名： | 李辉波 叶国安 林灿生 苏哲 王孝荣 宋凤丽 赵兴红 刘占元 |
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| 作者单位： | 中国原子能科学研究院 ;放射化学研究所,北京 ;102413 |
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| 摘 要： | 本工作采用29SiCP/MSNMR和XPS测试方法对硅胶表面接枝季铵功能基团的过程和机理进行了分析。XPS光谱分析结果表明,硅基季铵化产品的XPS谱中含有Si、O、C、N元素,并出现了以R4N+形式存在的401.26eV结合能峰,表明硅胶表面已被季铵化。TGA-DTA分析其接枝率为 0.46mmol/g,同时,本工作采用29SiCP/MSNMR法对接枝机理进行探索研究,得出了接枝的可能反应途径和产品分子结构。
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| 关 键 词： | 季铵盐 硅基 29SiCP/MSNMR')>29SiCP/MSNMR XPS |
Determination of Synthesis of Silica-Based Quaternary Ammonium Material Using 29Si CP/MS NMR and XPS |
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| LI Hui-bo,YE Guo-an,LIN Can-sheng,SU Zhe,WANG Xiao-rong,SONG Feng-li,ZHAO Xing-hong,LIU Zhan-yuan. Determination of Synthesis of Silica-Based Quaternary Ammonium Material Using 29Si CP/MS NMR and XPS[J]. Atomic Energy Science and Technology, 2010, 44(Z1): 85-90. DOI: 10.7538/yzk.2010.44.suppl.0085 |
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| Authors: | LI Hui-bo YE Guo-an LIN Can-sheng SU Zhe WANG Xiao-rong SONG Feng-li ZHAO Xing-hong LIU Zhan-yuan |
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| Affiliation: | China Institute of Atomic Energy, P. O. Box 275-26, Beijing 102413, China |
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| Abstract: | The synthesis of silica-based quaternary ammonium material was investigated by using 29Si CP/MS NMR and XPS. The XPS wide scan spectra dominate by the C 1s and N 1s, except for Si 2s, 2p and O 1s, the N 1s core-level spectrum is curve-fitted with peak signals about 401.26 eV, attributable to the R4N+, which indicates quaternary ammonium is bonded onto surface of silica gel. The grafting yield is about 0.46 mmol/g by TGA-DTA analysis. Forming mechanism of grafting was investigated by 29Si MAS/CP, the structural and reaction route were obtained. |
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| Keywords: | 29Si CP/MS NMR XPS |
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