A little more work on this topic and two additions:
First, as indicated in the graph, polymer solutions are degraded by ultrasound in a controlled manner. Timothy Mason, Sonochemistry, p 18.
Second, forward triazole formation, one of the click chemistry examples, was reported to be accelerated by ultrasound, in small molecule context. See the 2011 article and cited ones.
Giancarlo Cravotto et al, "Power ultrasound in metal-assisted synthesis: From classical Barbier-like reactions to click chemistry"
Ultrasonics Sonochemistry Volume 18, Issue 4, July 2011, Pages 836-841