Congratulations to Zheng

Congratulations to Zheng for his recent paper published on Polymer.

In this study, we investigated the evolving structures of PS/PMMA blend films under symmetrical confinement with a normal pressure. When no external pressure was exerted on the film, the formation of PMMA wetting layer at the blend-substrate interface was predominant. With the presence of a strong external pressure, the preferential wetting was completely prevented. This was caused by the external pressure counter-balancing the wetting pressure, which drained the PMMA from the wetting layer back into isolated domains. Therefore, the study showed that pressure could be an effective means to create “neutral wetting” situation for the PS/PMMA films on preferential wetting substrates.