Preparation and characterizations of nano-TiO2 modified with polyacrylonitrile

摘要

Nanometer-sized titanium dioxide (TiO2) was pretreated by 3-methacryloxypropyltrimethoxysilane (MPS). The TiO2 particles coated with grafted polyacrylonitrile(TiO2(MPS)-g-AN) were prepared. The analysis of infrared spectra confirms that nanometer-sized TiO2 was successfully modified with MPS and polyacrylonitrile. Thermal gravimetric (TG) as well as Kjeldahl methods were used to measure the coating rate of TiO2 modified with MPS and the grafting rate of acrylonitrile to nanometer titanium dioxide, respectively.