The Topology of Polymer Brushes Determines Their Nanoscale Hydration

Back Cover: In article 2300035 by Apostolos Vagias, Edmondo Maria Benetti, and co‐workers, Time‐of‐flight neutron reflectometry (ToF‐NR) provides experimental evidence that the topology of poly(2‐ethyl‐2‐oxazoline) (PEOXA) polymer brushes affects the water vapor uptake when exposed to relative humidity. The cyclic PEOXA (c‐PEOXA) brush can adsorb more water vapor than its linear homologue (L‐PEOXA) of the same molecular weight. In addition, C‐PEOXA attains a smaller air‐polymer interfacial roughness than L‐PEOXA.