A General Procedure for Surface Modification of Nano-alumina and Its Application to Dendrimers

作     者：王斌 郭朝霞 WANG Bin,LIU Wenfang,ZHU Yongliang,YU Jian,GUO Zhaoxia (Institute of Polymer Science and Engineering,Department of Chemical Engineering,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China)

作者机构：Institute of Polymer Science and EngineeringDepartment of Chemical EngineeringSchool of Materials Science and EngineeringTsinghua University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2007年第22卷第3期

页      面：453-456页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：nano-alumina N, N'-dicyclohexyl-carbodiimide (DCC) surface modification dendrimers 

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.