| A General Procedure for Surface Modification of Nano-alumina and Its Application to Dendrimers |
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| 引用本文： | 王斌,郭朝霞. A General Procedure for Surface Modification of Nano-alumina and Its Application to Dendrimers[J]. 武汉理工大学学报(材料科学英文版), 2007, 22(3): 453-456. DOI: 10.1007/s11595-006-3453-z |
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| 作者姓名： | 王斌 郭朝霞 |
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| 作者单位： | Institute of Polymer Science and Engineering Department of Chemical Engineering，School of Materials Science and Engineering，Tsinghua University，Institute of Polymer Science and Engineering，Department of Chemical Engineering，School of Materials Science and Engineering，Tsinghua University，Beijing 100084，China，Beijing 100084，China |
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| 摘 要： | A general procedure for surface modification of nano-alumina using N, N＇-dicyclohexyl- carbodiimide （DCC） mediated amidation is reported. Aliphatic and aromatic carboxylic acids reacted smoothly with nano-alumina pretreated with 3-aminopropyltriethoxysilane in the presence of DCC, giving modified aluminas having organic surfaces. The grafted aluminas have been characterized qualitatively by FT-IR or ^13C CPMAS NMR spectroscopy, and quantitatively by thermogravimetric analysis and elemental analysis. The procedure was applied to polyether dendrons bearing carboxyl groups at the focal points, giving successful grafting of dendrimers onto nano-alumina.
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| 关 键 词： | 纳米氧化铝 N,N'-双环己基-碳二亚胺 表面修饰 纳米材料 |
| 收稿时间： | 2006-03-21 |
| 修稿时间： | 2006-03-21 |
A general procedure for surface modification of nano-alumina and its application to dendrimers |
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| Wang Bin,Liu Wenfang,Zhu Yongliang,Yu Jian,Guo Zhaoxia. A general procedure for surface modification of nano-alumina and its application to dendrimers[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2007, 22(3): 453-456. DOI: 10.1007/s11595-006-3453-z |
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| Authors: | Wang Bin Liu Wenfang Zhu Yongliang Yu Jian Guo Zhaoxia |
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| Affiliation: | (1) Institute of Polymer Science and Engineering, Department of Chemical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China |
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| Abstract: | A general procedure for surface modification of nano-alumina using N,N'-dicyclohexyl-carbodiimide (DCC) mediated amidation is reported. Aliphatic and aromatic carboxylic acids reacted smoothly with nano-alumina pretreated with 3-aminopropyltriethoxysilane in the presence of DCC,giving modified aluminas having organic surfaces. The grafted aluminas have been characterized qualitatively by FT-IR or 13C CPMAS NMR spectroscopy,and quantitatively by thermogravimetric analysis and elemental analysis. The procedure was applied to polyether dendrons bearing carboxyl groups at the focal points,giving successful grafting of dendrimers onto nano-alumina. |
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| Keywords: | uano-alumina N,N1-dicyclohexyl-carbodiimide (DCC) surface modification dendrimers |
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