Preparation and Property Studies of Polystyrene/Functional Graphene Oxide Nanocomposites by In-situ Emulsion Polymerization

• Main Authors: Yan-Yu Lin, 林彥妤
• Other Authors: Yuan-Hsiang Yu
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/54338017725896104781

碩士 === 輔仁大學 === 化學系 === 101 === Graphene has attracted many research and application areas of interest due to its excellent properties in recent years. Graphene-based nanocomposites exhibiting excellent electrical conductivity, mechanical properties, thermal conductivity, thermal stability, gas barrier properties, etc., could be synthesized by using graphene-based derivatives through their functional groups modification and reacted with various polymers. Due to the possibility for mass production by chemical methods, there are great potentials to prepare graphene-based nanocomposites with low cost and excellent performance for commercial applications. In this research, A series of polymer-graphene nanocomposite materials consisting of organic polystyrene (PS) and organo functionalized graphene oxide were prepared successfully by the effective dispersion of the graphene nanolayers in the PS matrix through in-situ emulsion polymerization. The as-prepared organo functionalized graphene oxide (FGO) and PS/FGO nanocomposites were characterized by Fourier-Transformation infrared (FTIR) spectroscopy, X-ray Photoelectron Spectroscope (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In addition, the properties of as-prepared nanocomposites were studied by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), etc. Anticorrosive and gas separation properties of as-prepared PS/pv-GO nanocomposites, in form of coating and membrance, were also systematically investigated and compared based on electrochemical impedance spectroscopy (EIS) and gas permeability analysis (GPA).