Figure 10.

Vitrimers with varying fractions of static crosslinks [148]. (a) Average stress relaxation time <τ> as a function of the fraction of static crosslinks. When the proportion of static crosslinks increases, the material requires more time to relax stress. (b) Relative displacement as a function of creep time. The incorporation of static crosslinks significantly reduces the displacement. (c) Photographic images of samples with 40% and 60% of static crosslinks. The samples comprising 60% of static crosslinks cannot be reprocessed without deterioration of the material. Reprinted (adapted) with permission from Reference [148]. Copyright (2018) American Chemical Society.