2023 Volume 23 Issue 3 Pages 143-151
In general, the energy state of substances at interfaces is different from that in the corresponding internal region. A better understanding of the aggregation states of polymer chains at the interfaces is crucial for designing the highly functional materials and devices composed of polymers. Neutron reflectivity is a powerful tool to examine the density distribution at the interfacial regions due to the superior spatial resolution. We here present examples for the aggregation states of polymers at the interfaces and the related physical properties and functions.