| 초록 |
Polyimides (PIs) have been widely used in the microelectronic industry as flexible circuitry carriers, stress buffers, interdielectric layers, and passivation layers due to their good thermal stability, mechanical toughness, pliability, solvent resistance, and outstanding electrical properties. Graphene (GP), a very recent rising star in materials science, exhibits remarkable electronic and mechanical properties. Its one-atom thickness and large 2D plane lead to a large specific area, and therefore very large interfaces can be formed when it is added to a polymer matrix. In this work, we synthesized PI/GP hybrids using pyromellitic acid dianhydride (PMDA) and 4,4’-diaminodiphenyl ether (ODA) as monomers for PI and graphene oxide modified with various functional groups. The PI/GP hybrids were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and universal testing machine (UTM), etc. |
