초록 |
Grafting polymer films onto solid substrates is a key step in the fabrication of integrated systems for optoelectronics, sensors, and micromachines. Among various kinds of surface-initiated polymerization – one of the grafting methods, ring-opening metathesis polymerization (ROMP) has expanded the realm of polymer synthesis, and has provided access to many structurally unique polymers. In this study, thin films of polymers synthesized from strained olefins were formed on gold via ROMP initiated by Ru-alkylidene catalyst bound to the surface by means of the alkylidene ligands. We studied effects of the surface density of the catalyst and the concentration of monomers on the thickness of the polymer films. We also attempted to form monodisperse homopolymer films and block copolymer films by using the recently developed Ru catalyst that is highly active and rapidly initiating catalyst. |