| 초록 |
Preferential surface segregation of one component is a thermodynamically driven process that occurs by surface energy reduction in polymer blend. Although cohesive energy difference dominates among surface energy the factors, entropically driven surface segregation makes it possible to enrich the surface with energetically unfavored components. therefore, studying the surface segregation of a polymer with unique architecture in a linear polymer matrix is important in the area of additive design and surface treatment. In this study, we built experimental evidence that component with cyclic architecture preferentially segregates to the surface. Specifically, we demonstrate the surface segregation of a poly(ethyl vinyl ether) based cyclic/linear polymer when blended with poly(vinylpyrrolidone). The results were confirmed by contact angle and X-ray photoelectron spectroscopy studies. |
