| 초록 |
In recent years there has been considerable interest in surface initiated polymerization reactions because they allow to modify and control the surface properties of materials to a high extent. In this work, We modified Si wafer surface using atom transfer radical polymerization (ATRP). In here, in order to immobilize initiator for ATRP, we applied micro-contact printing (M-CP) on Si wafers using polydimethylsiloxane (PDMS) stamp made by photolithography. Then, surface of the Si wafer was functionalized with 2-bromo-2-methyl propionic acid and the graft polymerization of N-isopropylacrylamide (Nipaam) was carried out using the CuBr/2,2’-bipyridyl (bpy) system for SI-ATRP. Now that Poly(N-isopropylacrylamide) (PNiPaam) is one of the most popular thermosensitive polymer. In this study, behavior of Nipaam depending on the temperature will be discussed. |
