Toughening of Poly(L-lactide) with Blends of Poly(-caprolactone-co-L-lactide) in the Presence of Chain Extender

Figure 5

SEM images of cryofractured surfaces of chain-extended blends with PLLA/copolyester ratios of (a) 100/0, (b) 90/10, (c) 80/20, and (d) 60/40 (w/w) (all bar scales = 3 μm).

(a)

(b)

(c)

(d)