| 초록 |
A block copolymer consists of chemically distinct polymer chains joined together to form a various unique structures. Recently, block copolymers have attracted significant interest as candidates in applications of nanoscopic patterns in thin film. In these application, the physics behind the micro structures of block copolymers has been extensively essential. In film geometry, interfacial interactions play a important role in understanding the phase behaviors of block copolymer since they affect the relative stability of phases as well as the microdomain orientations by the preferential interaction. In this study, we report the phase behavior of block copolymer in thin films and compare with bulk, using symmetric and asymmetric PS-b-PI. The phase transition of block copolymer has been observed in thin films by x-ray scattering such as grazing-incident small angle x-ray scattering(GISAXS) and transmission electron microscopy (TEM). |
