| 초록 |
Hybrid Inorganic/organic polymers have been prepared by copolymerizing the polyimide with POSS (polyhedral oligomeric silsesquioxane). First, two kinds of POSS ( T7 and T8), were prepared and characterized by FTIR and NMR. Second, the silsesquioxane DMAc solution mixed with polyamic acid (PAA) solution prepared by PMDA and ODA in DMAc. Then, the solution was treated by thermal imidization in the nitrogen atmosphere. The microstructure of the nanocomposite materials were confirmed by FTIR, wide-angle X-ray diffraction and atomic scanning microscopy. We find the T7 POSS is dispersed well in the nanocomposite materials. The glass transition temperature and thermal stability were measured by DSC and TGA. Also, the water wettability was characterized by contact angle data. |
