Study On Plasma Polymerization And Microwave Polymerization Of Styrene

In recent years, lasting developable policy has become an important strategy, which triggers many countries economical development, and is gradually accepted by people. Though chemical industry brings large economical benefits, but it gives rise to severe environment damage. For the sake of environment protection, to develope green chemical reaction process has become one of the important research aspects. Microwave and plasma technologies, which are applied in chemical field, have many advantages, such as easy operation, higher efficiency, quick reaction, environmentally friendly, and so on, thus attracting much attention.In this thesis, the studies on the rules of polymerization of CO2/styrene under glow discharge and TiO2/styrene under microwave are presented. The experimental results show that newly formed groups, -COOH and -C-O, are present in the plasma polymerized polystyrene films, suggesting that chemical reactions have happened between CO2 and styrene. XPS analysis confirms that the content of C=O and C-O groups increases with CO2 flow rate. Optical microscope observations demonstrate that the plasma polymerized styrene films show a wave-like pattern and that the wavelength increases with CO2 flow rate.TiO2/polystyrene core-shell nanospheres have been successfully synthesized by a novel combination of sol-gel and microwave assisted emulsion polymerization. The obtained nanoparticles, whose diameter is very uniform, have clear core-shell structure and smooth surfaces.