Extended Data Fig. 9: Toughness measurements including CB-ether.
From: Tetrafunctional cyclobutanes tune toughness via network strand continuity

Measured tearing energies vs. critical stress (top) and toughnesses (work of fracture) vs. strain-at-break (bottom) for all tested networks including CB-ether. Other networks tested are shown for comparison. CB-ether-G tearing energy is statistically greater than Control-G networks (1-tailed t-test, \(p=0.002\)), but not from CB-C2-G (\(p=0.62\)). CB-ether-G toughness is statistically greater than Control-G and CB-C1-G networks (1-tailed t-test, \(p=0.015,p=0.024\), respectively). Box plots are shown with white lines indicating the median value and black lines showing the mean. Box edges show first and third quartile; whiskers denote data range. Each tearing energy value is derived from samples (n = 6 for CB-C1, CB-C2 and CB-ether; n = 7 for Control) cut from a single gel sheet. Toughness values are derived from n = 4 (2); 6(3); 9(4); 7(4) total replicates (number of biological replicates in parentheses), from left to right.