(A-C) Stress-controlled thermomechanical cycling of crosslinked x%PCL-y%ACPCL and 100%PCL-DMA SMP networks. (D-L) Shape memory demonstrations. (D, G) 88%PCL-12%ACPCL tubular permanent shape is (E, H) deformed into a thread by heating at 50 °C, applying strain, and fixing in an ice bath. (F, I) Heating at 37 °C results in recovery of the original, permanent tube shape. (J) 96%PCL-04%ACPCL guitar shape is (K) heated to 50 °C, strained, contorted, and fixed at 4 °C before (L) ultimate recovery of the complex guitar shape at 48 °C.