Hydrophilic (AB)_n Segmented Copolymers for Melt Extrusion‐Based Additive Manufacturing

Front Cover: In article number 2000265 by Paul D. Dalton, Hans‐Werner Schmidt, and co‐workers, (AB)_n copolymers composed of hydrophilic poly(ethylene glycol)‐based segments and bisurea segments, acting as physical crosslinks, are tailored for different melt‐processing technologies. Defi ned 3D constructs can be made from extrusion‐based printing and melt electrowriting while a typical nonwoven morphology is achieved with melt electrospinning. When exposed to water, the products swell and form hydrogels that slowly disintegrate.