Study on Surface Modification of Nano-TiO2 Grafted with Hyperbranched Poly(amine-ester)
XIONG Lei1, MA Hong-yi2, WANG Ru-min1, LIANG Hong-bo3, GUAN Jing3
1. Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an, 710072, China; 2. Beijing Institute of Aeronautical Materials, Beijing, 100095, China; 3. School of Material Science and Engineering, Nanchang Hangkong Universit,Nanchang, 330063, China
Abstract：A new method to chemical modified the surface of nano-TiO2 was studied.Coupling agent KH550 was grafted onto the surface of nano-TiO2.TiO2-g-poly(amine-ester) nanocomposites were synthesized through one-spot polycondensation between AB2 monomer and TiO2-g-KH550.The results of FTIR,TG and TEM showed that the hyperbranched poly(amine-ester)(HBP) was grafted onto the surface of nano-TiO2 and the weight ratio of the hyperbranched polymer grafted on the surface reached 15%.Results indicated that nano-TiO2 grafted with hyperbranched poly(amine-ester) had better dispersion in the ethanol and chloroform than that of unmodified nano-TiO2.
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2010, Vol. 0 
