A Unique Nano‐Capsule Possessing Inner Thermo‐Responsive Surface Prepared from a Toothbrush‐Like Comb−Coil Block Copolymer

Front Cover: In article number 2100174 by Haruka Takebuchi and Ren‐Hua Jin, a double hydrophilic coil‐brush block copolymer self‐asssembles into core‐corona micelles in water under heating. Via cross‐linking the corona, the micelle is transformed into a nanocapsule which has an inner thermo‐responsive surface. When heating step‐by‐step in a wide range of temperatures, the nanocapsule shrinks gradually, while when cooling step‐by‐step, the nanocapsule swells gradually back to its original size.