| 초록 |
Nanocomposites consisting of polymers and inorganic nanoparticles(NPs) have many potential due to diverse applications from solar cell to ferroelectric devices. To integrate NPs into polymer matrix in the controlled manner, thiol-terminated stabilizers have been used to tune the surface of NPs such as Au, Pt, CdSe. However, a practical use of such particles in the nanocomposites is very limited by thermal instability even at ~90oC, leading to the agglomeration of NPs. For thermal stability of NPs, we modified Au NPs surface using UV-crosslinkable polymeric stabilizers. After UV-crosslinking, it was found that the Au NPs exhibit the excellent stability at high temperature (~180ºC) in both solution and thin-film states. Furthermore, we demonstrate that thermally stable Au NPs can be used as compatibilizers in PS/PMMA blends. The NPs at the PS/PMMA interface produced the dramatic reduction in the droplet size after 1 h of thermal annealing at 180ºC, in which the Au NP size is unchanged |
