Synthesis And Characterization Of High Oil-absorption Resin Of Acrylic By Using Glow-discharge Electrolysis Plasma

Glow-discharge electrolysis plasma (GDE) is a novel technique to prepare polymers with excellent properties. The DC glow discharge is sustained by the between an electrode and the surface of electrolyte. The conventional electrolysis turned into glow discharge electrolysis when the applied voltage was high enough in aqueous media. There are a lot of energetic species to produce during the glow discharge electrolysis process, such as·OH,·H, HO2· and so on, and can initiate polymerization of various monomers.The thesis consists of four chapters, which are focusing on the application of glow discharge electrolysis plasma (GDE) in the synthesis of poly-acrylics and the absorbency of the obtained reins for the organic pollutant.Chapter1:Introduction.The general figure about the character and produce of the glow-discharge electrolysis plasma is given in brief. An introduction of the application of plasma concerning wastewater treatment, chemical synthesis, initiation polymerization and surface modification was given. Meanwhile, the background, principle of oil absorption and effects of the factors on oil absorbency of resin was also considered.Chapter2:Synthesis and characterization of high oil-absorption resin by using glow-discharge electrolysis plasma.A high absorptive resin was prepared by suspension polymerization, in which the initiation was made by glow-discharge electrolysis plasma. The structure of resin was characterized by means of attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTTR) and thermogravimetric analysis (TGA). The effects of the discharge voltage, discharge time, the mass of the cross-linking agent and porogen on the absorbency were examined in detail. Results show that the resin has the higher of absorption for carbon tetrachloride, chloroform and dichloromethane.Chapter3:Synthesis and characterization of an expended graphite-physical modification-butyl methacrylate resin by using glow-discharge.A high absorptive resin was prepared by suspension polymerization, in which the initiation was made by glow-discharge electrolysis plasma. The structure of resin was characterized by means of attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTTR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The effects of the discharge voltage, discharge time and the mass of the expended graphite on the absorbency were examined in detail. In addition, the kinetic of absorption, absorption selectivity, absorption rate and network parameters of the resin were also studied.Chapter4:Synthesis and characterization of high oil-absorption resin (poly(butyl acrylate-butyl methacrylate)by using glow-discharge electrolysis plasma.A high oil-absorptive resin was prepared by suspension polymerization, in which the initiation was made by glow-discharge electrolysis plasma. The structure of resin was characterized by means of attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy(SEM). The effects of the discharge voltage, discharge time, polymerization temperature, the ratio of the water/oil and monomer feed ratio agent on the oil absorbency were examined in detail. In addition, the kinetic of oil absorption, oil absorption selectivity and oil-absorption rate were also studied. The results show that the oil absorbencies were about128.1g/g for carbon tetrachloride,134.4g/g for chloroform,145.8g/g for dichloromethane,95.6g/g for benzene,70.3g/g for toluene,69.2g/g for xylene under the optimal conditions.