3D Polymer Microframes That Exploit Length‐Scale‐Dependent Mechanical Behavior

Holographic interference lithography is used to create a 3D polymer microframe with sub-micrometer periodicity, low density, and 200 nm feature size. These structures exhibit interesting deformational characteristics (see figure) with ultimate strains reaching ca. 300 %, much higher than the strains attainable in bulk films of either the fully crosslinked solid polymeric material or the uncrosslinked glassy monomer precursor.