초록 |
The phase behavior of block copolymer (BCP) and the blends systems have been intensively investigated by many researchers. The binary miscible blends of block copolymers exhibit a macrophase separation from an ordered to a disordered state either upon cooling and heating, where the latter behavior is called as the order-to-disorder transition (ODT) and the former was denoted as the lower disorder-to-order transition (LDOT). In this study, we observed transition behavior for weakly-interacting symmetric BCP blends using small angle x-ray scattering (SAXS), depolarized light scattering (DLS) and differential Scanning Calorimetry (DSC). Interestingly, several types of phase behaviors were observed depending on the relative composition of BCPs. |