| 초록 |
Self-assembly can lead to controlled nanostructures through the spontaneous process due to competing attractive and repulsive interactions. Block copolymers are one class of such self-assembling materials, exhibiting various nanostructures via microphase-separation that is caused by the immiscibility and connectivity of the components. Upon using additional units of different natures and sizes one can effectively tune the self-assembly into hierarchical organization. In this work, the effects of the addition of surfactant that are capable of complexing one component in block copolymer are investigated. The block copolymer used PS-b-PEO. Adding the surfactant that can bind to PEO block, the crystallization behavior of PEO changes, i.e., the melting temperature and crystallinity decrease and disappear beyond critical concentration of surfactant. Block copolymers with different structures are complexed with surfactants and their resulting structures and properties are examined. |
