Preparation of interconnected highly porous polymeric structures by a replication and freeze‐drying process

Three‐dimensional degradable porous polymeric structures with high porosities (93–98%) and well‐interconnected pore networks have been prepared by freeze‐drying polymer solutions in the presence of a leachable template followed by leaching of the template. Templates of the pore network were prepared by fusing sugar or salt particles to form a well‐connected structure. The interstices of the template were then filled with a polymer solution...