Preparation and Properties of Poly (vinyl alcohol)-Clay as well as Poly (vinyl carbazole)-Clay Nanocomposite Materials

• Main Authors: Ching-Yi Lin, 林靜宜
• Other Authors: Jui-Ming Yeh
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/19873733710706605910

碩士 === 中原大學 === 化學研究所 === 90 === This thesis can be divided into two parts. For the first part , a series of poly(vinyl alcohol)—clay nanocomposites （PCN）were prepared by dispersing the nanolayers of inorganic montmorillonite （MMT）clay into organic poly(vinyl alcohol) matrix via the in-situ thermal polymerization. The as-synthesized poly(vinyl alcohol) / montmorillonite （MMT）clay nanocomposites were subsequently characterized by FTIR, XRD and TEM. Thermal properties and chemical structures of this series of nanocomposites were studied and discussed with different feeding ratio of the montmorillonite in PVA matrix. This nanocomposites was found to display an enhanced heat resistance at increasing amount of clay loading. The optical transparency of PCN membranes was also found to decrease as the clay loading increased. For the second part, a series of poly(vinylcarbazole)（PVK）—clay nanocomposites （PCN）were prepared by dispersing the nanolayers of inorganic montmorillonite （MMT） / clay into organic poly (vinylcarbazole) matrix via the in photo polymerization. The as-synthesized poly (vinylcarbazole) / montmorillonite （MMT）clay nanocomposites were subsequently characterized by FTIR, XRD and TEM. Thermal properties and chemical structures of this series of nanocomposites were studied and discussed with different feeding ratio of the montmorillonite in PVK matrix. This nanocomposites was found to display an enhanced heat resistance at decreasing amount of clay loading. The UV-vis of PCN membranes was found to display blue shift as the clay loading increased.