Extended Data Fig. 3: Uniform bulk nanophase separation and thermally activable crosslinking to enhance elastic resilience.
a, The first stretching-releasing cycles of the pristine N1, N1/SEBS and c-N1/SEBS (5 wt% crosslinker). b, The second to fifth stretching-releasing cycles of c-N1/SEBS. c, Photograph of a freestanding c-N1/SEBS film on a stretching station. d, Energy loss rate of the first stretching-releasing cycle for pristine N1, N1/SEBS, and c-N1/SEBS films under different strains ranging from 15% to 150%.
