Nature Communications (Jan 2022)

Onset of criticality in hyper-auxetic polymer networks

  • Andrea Ninarello,
  • José Ruiz-Franco,
  • Emanuela Zaccarelli

DOI
https://doi.org/10.1038/s41467-022-28026-z
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 8

Abstract

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Auxetic materials are characterized by a negative Poisson’s ratio - they become thicker when stretched. Here, authors reach the limit of auxetic behavior, known as hyper-auxetic, in polymer networks, hitting an unconventional mechanical critical point.