| 초록 |
The principle of thermal insulation is that material can keep internal temperature constant by reducing heat loss or heat inflow into the outside. Porous structure give materials thermal insulation property due to high heat compacity and low heat conductivity, therefore it has widely used as concept of thermal insulation materials. Ethylene-bridged polysilsesquioxane film is a promising material that can exhibit thermal insulation property because of intramolecular void spaces. Ethylene-bridged polysilsesquioxane is composed of organic bridging group between two silanes and pore size can be changed according to length and flexibility of bridging group, which can improve thermal insulation property. In this study, various bridging groups were introduced using hydrosilylation reaction of hydrodimethyl-silylated oligomethylsilsesquioxane (MSQ-SiH) and vinyl groups. Finally, Thermal insulation property of bridged polysilsesquioxane films were analyzed by various analytical tools. |
