| 초록 |
Recently, organic-inorganic hybrid materials have been widely used to overcome the disadvantages of organic polymers. Ladder-like polysilsesquioxane (LPSQ) and polyhedral oligomeric silsesquioxane (POSS) are representative organic-inorganic hybrid materials. The core of silsesquioxane is composed of Si-O-Si bonding. And the core is surrounded by organic side chains. Due to this unique structure, silsesquioxanes have a high interaction with the organic matrix, and is well soluble in organic solvents. Also, due to the Si-O-Si bonding of the core, it contributes to the improvement of thermal and mechanical properties. In this study, we introduced POSS into the LPSQ matrix to improve mechanical properties. Mechanical properties were analyzed using by pencil hardness and nanoindenter. When POSS was added, the pencil hardness and the hardness of the nanoindenter were increased. |
