Synthesis and physical properties of the anti-static and transparent MMA/MAA/TiO2 nanocomposites

• Main Authors: Su Chin-Mei, 蘇錦梅
• Other Authors: Chen Jung-Hui
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/31721640371409939678

碩士 === 國立高雄師範大學 === 化學系 === 96 === The main objective of this research is to develop highly transparent polymeric film with anti-static property. In order to enhance the miscibility between the inorganic and the organic phases, the coupling agent made from MAA and Ti(OBu)4 will become more organic-like. Then MAA/titania inorganic composites are copolymerized with methyl methacrylate and cross-linking agant (TAIC) by heat polymerization.The composites were spin-coated with the spin coator at room temperature. The thermal properties, the surface resistance and light transparency were measured and discussed. The experimental results showed that the thermal stability and hardness of the hybrid materials are considerably improved relative to pure PMMA. The glass transition temperature was not detected below 200℃by DSC. The surface resistance of hybrid films is reduced from 1.21×1014 Ω/cm2 to 7.31×109 Ω/cm2 below 2.56% formula content of titania. The excellent optical transparency is achieved in the visible region. According to the morphological structure, which is estimated by TEM, the optic thin films are evenly distributed with inorganic particles and the average particle size of is less than 100 nm. Finally, the potential of these new organic anti-static transparent films being used in the optoelectronic devices will be discussed.