Novel Method of Hyperbranched Polymer Modified Nano-SiO_2-Grafting Hyperbranched Poly(amide-ester) from Nano-SiO_2 by One-Step Polycondensation  

作　　者：赵辉 李杰 孙瑞敏 罗运军 

机构地区：[1]Research Center of Functional Materials,Kaifeng University [2]School of Material Science and Engineering,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2008年第1期100-103,共4页北京理工大学学报（英文版）

基　　金：Sponsored by the Ministerial Level Advanced Research Foundation (120701BQ0126)

摘　　要：A new method of surface chemical modification of nano-SiO2 is proposed in this paper. In the presence of catalyst, the active hydroxyl groups on the surface of nano-SiO2 reacted with AB2-type monomer （N, N-dihydroxyethyl-3-amino methyl propionate） by one-step polycondensation. And the product＇s Fourer transform infrared （FTIR） graphs and transmission electron microscopy（TEM） images proved that hyperbranched poly （amine-ester） was grafted on nano-SiO2 surface successfully. Results show that the modified nano-SiO2 exhibits excellent dispersion and stability in some solvents such as alcohol and chloroform.A new method of surface chemical modification of nano-SiO2 is proposed in this paper. In the presence of catalyst, the active hydroxyl groups on the surface of nano-SiO2 reacted with AB2-type monomer （N, N-dihydroxyethyl-3-amino methyl propionate） by one-step polycondensation. And the product＇s Fourer transform infrared （FTIR） graphs and transmission electron microscopy（TEM） images proved that hyperbranched poly （amine-ester） was grafted on nano-SiO2 surface successfully. Results show that the modified nano-SiO2 exhibits excellent dispersion and stability in some solvents such as alcohol and chloroform.

关 键 词：NANO-SIO2 hyperbranched poly （amide-ester） one-step polycondensation dispersion and stability 

分 类 号：TB383.1[一般工业技术—材料科学与工程]